sailboat terms

Sailing Terminology List: 300+ Sailing Terms

There’s a massive amount of sailing terms that any sailor will eventually learn with time and it can seem daunting essentially learning a new language.

Need to know sailing terminology will help you out when communicating with your crew members and captains of other vessels, so having a sailing terminology list handy can do a lot of good.

That’s why I put together this list of common sailing terms that’ll help you out the next time you head out on the water.

Aback – A foresail when against the wind, used when tacking to help the vessel turn. Abaft – Toward the stern, relative to some object. Abeam – On the beam, a relative bearing at right angles to the ship’s keel. Aboard – On or in a vessel. Adrift – A boat drifting without being propelled. Aft – At or towards the stern or behind the boat. Aground – A boat whose keel is touching the bottom. Amidships – The middle section of a vessel with reference to the athwartships plane, as distinguished from port or starboard. Apparent wind – The wind felt aboard a moving boat. Astern – Behind the stern of the boat. Athwartships – Across the boat from side to side.

Backstay – The standing rigging running from the stern to the top of the mast, keeping the mast from falling forward. Bail – To empty the boat of water. Ballast – Weight in the keel of a boat that provides stability. Barometer – An instrument that measures air pressure, an aid to forecasting the weather. Batten – A thin wood or fiberglass slat that slides into a pocket in the leech of a sail, helping to maintain an aerodynamic shape. Beam – The width of a boat at its widest point. Beam reach – Sailing in a direction at approximately 90 degrees to the wind. Bear away – To “fall off” or head away from the wind. Bearing – The direction from one object to another expressed in compass degrees. Beating – A course sailed upwind. Below – The area of a boat beneath the deck. Bend – To attach a sail to a spar or a headstay or to attach a line to a sail. Bight – A loop in a line. Bilge – The lowest part of a boat’s interior where water on board will collect. Bitter end – The end of a line. Blanket – To use the sail or object to block the wind from filling a sail. Block – A pulley on a boat. Boat hook – A pole with a hook on the end used for grabbing hold of a mooring or retrieving something that has fallen overboard. Boltrope – The rope that is sewn into the foot and luff of some mainsails and the luff of some jibs by which the sails are attached to the boat. Boom – The spar extending directly aft from the mast to which the foot of the mainsail is attached. Boom vang – A block and tackle system, which pulls the boom down to assist sail control. Bottom – The underside of a boat. Bow – The forward part of the boat. Bowline – A line running from the bow of the boat to the dock or mooring. Bow spring – A line running from the bow of the boat parallel to the dock or mooring that stops the boat from moving forward along the dock. Bowline – A knot designed to make a loop that will not slip and can be easily untied. Breast line – A short line leading directly from the boat to the dock. Broach – An uncontrolled rounding up into the wind, usually from a downwind point of sail. Broad reach – Sailing in a direction with the wind at the rear corner (the quarter) of the boat. Approximately 135 degrees from the bow of the boat. Bulkhead – A wall that runs athwartships on a boat, usually providing structural support to the hull. Buoy – A floating navigation marker. Buoyancy – The ability of an object to float. Bulwark – A solid side wall, often about waist high, from the outside edge of the deck to prevent someone from falling overboard. Burdened vessel – The vessel required to give way for another boat when the two may be on a collision course. By the Lee – A sailboat running with the wind coming over the same side of the boat as the boom.

Cabin – The interior of the boat. Can – In the U.S., it’s an odd-numbered green buoy marking the left side of the channel when returning to harbor. Capsize – To tip or turn a boat over. Cast off – To release a line when leaving a dock or mooring. Catamaran – A twin-hulled vessel with a deck or trampoline between the hulls. Catboat – A boat with only a mainsail and an unstayed mast located at the bow. Centerboard – A pivoting board that can be lowered and used like a keel to keep a boat from slipping to leeward. Centerline – The midline of the boat running from bow to stern. Chafe – Wear on a line caused by rubbing. Chainplates – Strong metal plates which connect the shrouds to the boat. Channel – A (usually narrow) lane, marked by buoys, in which the water is deep enough to allow a vessel safe passage. Chart – A nautical map. Charter – To rent a boat. Chock – A guide mounted on the deck through which dock lines and anchor rode are run. Chop – Rough, short, steep waves. Cleat – A nautical fitting that is used to secure a line. Clew – The lower aft corner of a sail. The clew of the mainsail is held taut by the outhaul. The jib sheets are attached to the clew of the jib. Close hauled – The point of sail that is closest to the wind when the sails are hauled close to the centerline of the boat. Close reach – Sailing in a direction with the wind forward of the beam (about 70o from the bow). Coaming – The short protective wall that surrounds the cockpit or hatch. Cockpit – The lower area of the deck in which the steering and sail controls are located. Coil – To loop a line neatly so it can be stored, or a reel of line. Come about – To alter course so as to cause the bow of the boat to pass through the eye of the wind. Companionway – The steps leading from the cockpit or deck to the cabin below. Compass – The magnetic instrument which indicates the direction in which the boat is headed. Compass rose – The circles on a chart which indicate the direction of true and magnetic north. Course – The direction in which the boat is being steered. Crew – Besides the skipper, anyone on board who helps run the boat. Cunningham – A line running through a grommet a short distance above the tack of the mainsail which is used to tension the luff of the main. Current – The horizontal movement of water caused by tides, wind, and other forces. Cutter – A single-masted boat rigged with both jib and staysail.

Daysailer – A small sailboat. Dead downwind – Sailing in a direction straight downwind. Deck – The mostly flat area on top of the boat. De-power – Reducing the power in the sails by luffing, easing the sheets, or stalling. Dinghy – A small sailboat or rowboat. Displacement – The weight of the boat; therefore the amount of water that it displaces. Dock – The quay or pontoon where a boat may be tied up. Dockline – A line used to secure a boat to the dock. Dodger – A canvas protection in front of the cockpit of some boats that are designed to keep spray off the skipper and crew. Downhaul – A line used to pull down on the movable gooseneck on some boats to tension the luff of the mainsail. Draft – The depth of a boat’s keel from the surface of the water.

Ease – To let out a line or sail. Ebb – An outgoing tide.

Fairlead – A fitting that guides sheets and other lines in a way that reduces friction and therefore chafe. Fairway – The center of a channel. Fake – Lay out a line on the deck using large loops to keep it from becoming tangled. Fall off – Alter course away from the wind. Fast – To secure something. Fathom – A measure of the depth of water. One fathom equals six feet. Fender – An inflated rubber or plastic bumper used to protect a boat by keeping it from hitting the dock. Fend off – To push off. Fetch – The distance of open water to windward between the shore and the boat. Fid – A tapered spike used to open the lay of a rope when splicing. Flood – An incoming tide. Following sea – Wave pattern hitting the stern of the boat. Foot – The bottom edge of the sail. Fore – Another word for “forward”. Forepeak – An accommodation or storage area in the bow below the deck. Foresail – A jib or genoa. Forestay – The standing rigging running from the bow to the mast top and to which the foresail is secured. Forward – Towards the bow. Fouled – Another word for “tangled”. Fractional rig – When the forestay is attached to the mast some distance below the top. Foul weather gear – Water resistant clothing. Freeboard – The height of the hull above the water’s surface. Full – Not luffing. Furl – To fold or roll up a sail.

Gaff – On some boats, a spar along the top edge of a four-sided fore and aft sail. Genoa – A large foresail whose clew extends aft of the mast. Give way vessel – The vessel required, by the regulations, to give way in a collision situation. G.M.T. – Greenwich Mean Time. The time at the prime meridian in Greenwich, London, England. Now referred to as Universal Time Coordinated U.T.C. Gooseneck – The strong fitting that connects the boom to the mast. Great Circle – A line drawn on a chart which is accurate over a long distance, a section of the Earth which intersects the center of the Earth. Grommet – A reinforcing ring set in a sail. Ground tackle – Collective term for the anchor and rode (chain and line). Gudgeon – A fitting attached to the stern into which the pintles of a rudder are inserted. Gunwale – The edge of the deck where it meets the topsides. Gybe – Another alternative spelling of “jibe”.

Halyard – A line used to raise or lower a sail. Hank – A snap hook which is used to secure the luff of a foresail to the forestay. Hard a-lee – The call given to the crew that will initiate the action of tacking. Hard over – To turn the helm or tiller as far as possible in one direction. Hatch – A large covered opening in the deck. Haul in – To tighten a line. Head – The toilet on a boat as well as the top corner of a sail. Headboard – The small reinforcing board affixed to the head of a sail. Headed – A wind shift which causes the boat to head down or causes the sails to be sheeted in. Heading – The direction of the boat expressed in degrees. Head down – Changing course away from the wind. Head off – Another word for “head down”. Head up – Changing course towards the wind. Headsail – A jib/genoa attached to the forestay. Headstay – The standing rigging running from the bow to the top of the mast. Head to wind – When the bow of the boat is dead into the wind. Headway – Forward progress. Heave – To throw. Heave to – To hold one’s position in the water by using the force of the sails and the rudder to counteract each other. Holding ground – The seabed or bottom ground in an anchorage. Hove to – A boat that has completed the process of heaving to with its aback, its main trimmed, and its rudder positioned to hold the vessel close to the wind. Heavy weather – Strong winds and large waves. Heel – The lean of the boat caused by the wind. Helm – The tiller. Helmsman – The person responsible for steering the boat. Hull – The body of the boat, excluding the rig and sails. Hull speed – The theoretical maximum speed of a sailboat determined by the length of its waterline.

Inboard – Inside of the rail of the boat. In irons – A boat that is head to wind and unable to move or maneuver.

Jackstay – A wire or webbing strap attached at the front and back of a vessel along the deck to which a safety harness line may be clipped. Jib – The small forward sail of a boat that is attached to the forestay. Jibe – To change the direction of the boat by steering the stern through the wind. Jibe oh – The command given to the crew when starting a jibe. Jiffy reef – A quick reefing system allowing a section of the mainsail to be pulled down and tied to the boom. Jury rig – An improvised temporary repair.

Kedge – A smaller anchor than the main or bower anchor. Often used for maneuvering or kedging off. Kedge off – To use an anchor to pull a boat into deeper water after it has run aground. Keel – The heavy vertical fin beneath a boat that helps keep it upright and prevents it from slipping sideways in the water. Ketch – A two-masted sailboat on which the mizzen (after) mast is lower than the mainmast and is located forward of the rudderpost. Knockdown – A boat heeled so far that one of its spreaders touches the water. Knot – One nautical mail per hour.

Land breeze – A wind that blows over the land and out to sea. Lash – To tie down. Lay – To sail a course that will clear an obstacle without tacking. Lazarette – A storage compartment built into the cockpit or deck. Lazy sheet – The windward side jib sheet that is not under strain. Lead – To pass a line through a fitting or block. Lee helm – The boats tendency to turn away from the wind. Lee shore – Land which on the leeward side of the boat. Leech – The after edge of a sail. Leeward – The direction away from the wind that is the direction that the wind is blowing to. Leeward side – The side of the boat or sail that is away from the wind. Leeway – The sideways slippage of the boat in a downwind direction. Lifeline – Rope or wire supported by stanchions. Lift – The force that results from air passing by a sail or water past a keel that moves the boat forward and sideways. Line – A rope. L.O.A. – The maximum Length Overall fore and aft along the hull. Lubber line – A line on a magnetic compass to help the helmsman steer the correct course. Luff – The leading edge of a sail as well as the fluttering of a sail caused by aiming too close to the wind. Lull – A decrease in wind speed for a short duration. L.W.L. – The length fore and aft along the hull measured at the waterline.

Magnetic – In reference to the magnetic north rather than true north. Mainmast – The taller of two masts on a boat. Mainsail – The sail hoisted on the mast of a sloop or cutter or the sail hoisted on the mainmast of a ketch or yawl. Mainsheet – The controlling line for the mainsail. Marlinspike – A pointed tool used to loosen knots. Mast – The vertical spar in the middle of a boat from which the mainsail is set. Masthead – The top of the mast. Maststep – The fitting in which the foot of the mast sits. Mizzen – The small aftermost sail on a ketch or yawl hoisted on the mizzenmast. Mizzenmast – The shorter mast aft of the main mast on a ketch or yawl. Mooring – A permanently anchored ball or buoy to which a boat can be tied.

Nautical mile – Standard nautical unit of distance equal to one minute of arc of the Earth’s latitude or 6080 feet. Navigation rules – Laws established to prevent collisions on the water. No-go zone – An area into the wind in which a sailboat cannot produce power to sail. Nun – A red even numbered buoy marking the right side of a channel when returning to port.

Offshore wind – Wind blowing away from the shore and out to sea. Offshore – Away from or out of sight of land. Off the wind – Not close-hauled point of sail. On the wind – Sailing upwind in a close-hauled point of sail. Outboard – Outside the rail of a boat. Outhaul – The controlling line attached to the clew of a mainsail used to tension the foot of the sail. Overpowered – A boat that is heeling too far because it has too much sail up for the amount of wind.

Painter – The line attached to the bow of a dinghy. Pay out – To ease a line. P.F.D. – A Personal Flotation Device such as a life jacket. Pinching – Sailing too close to the wind. Pintle – Small metal extension on a rudder that slides into a gudgeon on the transom. Point – To steer close to the wind. Points of sail – Boat direction in relation to the wind. Port – The left-hand side of the boat when facing forward, a harbor, or a window in a cabin on a boat. Port tack – Sailing on any point of sail with the wind coming over the port side of the boat. Prevailing wind – Typical or consistent wind direction. Puff – An increase in wind speed. Pulpit – A guardrail at the bows of a vessel.

Quarter – The sides of the boat near the stern.

Rail – The outer edges of the deck. Rake – The angle of the mast. Range – The alignment of two objects that indicate the middle of a channel. Reach – One of the several points of sail across the wind. Ready about – The command given to the crew to prepare to tack. Ready to jibe – The command given to the crew to prepare to jibe. Reef – To reduce the area of a sail. Reeve – To pass a line through a ring or block. Rhumb line – A straight line drawn on a Mercator chart, which intersects all meridians at the same angle. Rig – The design of a boat’s masts, standing rigging and sail plan. Rigging – The wires and lines used to support and control sails. Roach – The sail area aft of a straight line running between the head and clew of a sail. Rode – The line and chain attached from the boat to the anchor. Roller-furling – A mechanical system to roll up a headsail around the headstay. Rudder – A vertical blade attached to the bottom of the hull which is used to steer the boat. Run – Point of sailing when the wind is coming from dead astern. Running rigging – The lines used to control the sails.

Sail ties – Lengths of line or webbing used to secure sails when they are dropped or to secure the unused portion of a reefed sail. Schooner – A two-masted boat whose foremast is the same height or shorter than its mainmast. Scope – The length of anchor rode paid out in relation to the maximum depth of water. Scull – To propel a boat with a single oar fixed in a notch through the transom. Scupper – A cockpit or deck drain. Sea breeze – A wind that blows from the sea onto the land. Seacock – A valve which opens and closes a hole used as an intake or discharge from the boat. Secure – The make safe or tie down. Set – The direction of the current as well as to trim the sails. Shackle – A metal fitting at the end of a line used to attach the line to a sail or another fitting. Shake out – To remove a reef. Sheave – The wheel inside a block or fitting over which the line runs freely. Sheet – A line used to control a sail by pulling it in or easing it out. Shoal – An area of shallow water. Shroud – Standing rigging at the side of the mast. Singlehanded – Sailing alone. Skeg – A vertical fin in front of the rudder. Sloop – A single-masted sailboat with mainsail and headsail. Sole – The floor in a cockpit or cabin. Spar – A pole used to attach a sail on a boat, for example, the mast, the boom, or a gaff. Spinnaker – A large downwind headsail not attached to the head stay. Splice – The joining of two lines together by interweaving their strands. Spreader – A support strut extending athwartships from the mast used to support and guide the shroud from the top of the mast to the chainplate. Spring line – A dock line running forward or aft from the boat to the dock to keep the boat from moving fore or aft. Squall – A fast moving short intense storm. Stanchions – Stainless steel or aluminum supports at the edge of the deck which holds the lifelines. Standing rigging – The permanent rigging of a boat, including the forestay, backstay, and shrouds. Starboard – The right-hand side of the boat when looking forward from the stern. Starboard tack – Sailing on any point of sail with the wind coming over the starboard side of the boat. Stay – A wire support for a mast, part of the standing rigging. Staysail – Any sail which is attached to a stay. Steerage way – The minimum speed of the boat through the water that allows the rudder to function efficiently. Stem – The foremost tip of the boat. Stern – The aft part of the boat. Stern spring – A line running from the stern of the boat parallel to the dock or mooring that stops the boat from moving backward along the dock. Stow – To store properly. Swamped – Filled with water.

Tack – To alter course so as to cause the bow of the boat to pass through the eye of the wind. Tackle – A series of blocks and line that provide a mechanical advantage. Tail – To hold the end of a line so as to keep it under tension on a winch. Telltales – Short lengths of yarn or cloth attached to the sails which indicate when the sail is properly trimmed. Tide – The rise and fall of water level due to the gravitational effects of the sun and the moon. Tiller – A long handle attached to the rudder which is used to steer the boat. Toe rail – A low rail around the outer edge of the deck. Topping lift – A line used to hold the boom up when the mainsail is lowered or stowed. Topsides – The sides of a boat between the waterline and the deck. Transom – The vertical surface of the stern. Trim – To adjust the sail controls to create optimum lift from the sails. Trimaran – A three-hulled vessel. True wind – The actual speed and direction of the wind as you would feel when standing still. Tune – To adjust the boats standing rigging. Turnbuckle – A mechanical fitting attached to the lower ends of stays allowing the standing rigging to be adjusted.

Underway – A boat that is not attached to the ground by either anchor or mooring lines. Upwind – Towards the direction of the wind. U.S.C.G. – United States Coast Guard. U.T.C. – Universal Time Coordinated. As the modern term for Greenwich Mean Time, this is the standard reference time which is used internationally for navigational information.

Vang – A block and tackle system, which pulls the boom down to assist sail control. Veer – A clockwise change in the wind direction. Vessel – Any sailboat, powerboat, or ship.

Wake – Waves caused by a boat moving through the water. Waterline – The horizontal line on the hull of a boat where the surface of the water should be. Weather helm – The tendency of the boat to head up towards the wind, this increases as the sailboat becomes overpowered. Whip – To bind together the strands at the end of a line. Whisker pole – A pole temporarily mounted between the mast and the clew of the jib. Used to hold the sail out and keep it full when sailing downwind. Winch – A deck-mounted drum with a handle offering a mechanical advantage when used to trim sheets. Windward – Towards the wind. Windward side – The side of the boat closest to the wind. Wing-and-wing – Sailing downwind with the jib set on the opposite side to the mainsail. Working sails – The mainsail and the standard jib. Working sheet – The leeward sheet that is under tension.

Yard – The horizontal spar from which a square sail is suspended. Yawl – A two-masted vessel on which the mizzenmast is mounted aft of the rudderpost.

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Sailing Terms: A Complete Guide

Last Updated by

June 15, 2022

Learning sailing terms when you first get into boating can be a daunting task.

Some sailing terms are logical, like 'fore' means forward or front of the boat, while others might as well be in a different language. Athwartship, for example. Nothing in our daily lexicon gives any clues as to what that might mean. Like it or not, it's time to dust off the old noodle and get to memorizing some new vocab words!

Knowing the difference between a clew and a tack, a luff and a leech, will help you communicate with your sail maker regarding which part of your sail needs resewn. If you need to have your rigging adjusted, you must know the difference between your shrouds and your stays, your standing rigging vs. your running rigging.

By educating yourself in the correct names of all parts of your sailboat, you can avoid situations in which you may need to use terms such as ‘thingy’ or ‘that round part at the end of that thing’. While even the most seasoned sailor occasionally troops over the vernacular, it is always beneficial to have as wide a nautical vocabulary as possible. Many in the sailing community get by without knowing the entire sailing dictionary, but if you’re interested in avoiding vocabulary embarrassment, check out the list I’ve compiled of sailing terms that every sailor ought to know.

I’ve been sailing on and off throughout my life and I know from experience that it is incredibly helpful to know the correct terms for each part of your sails, rigging, and boat.

Sailors are among the kindest, most helpful people you’ll ever meet. But, if you’re looking for help on why you’re not getting the most speed out of your mainsail and you know don’t know the correct terms for each part of the sail, it may be hard to get advice from you fellow sailor on why ‘the back of the mainsail is flappy’. They would be more likely to give useful advice if you’re able to tell them that you’re struggling to keep wind in the roach of your mainsail. Check out my list of sailing terms and see if a few don’t stick. I’ve done my best to include pictures when possible.

Table of contents

Sailing Terms

Abeam : When an object, craft or island is abeam your vessel, that means that it is off the side of your boat. It is 90 degrees from the centerline of your boat.

Abaft : Toward the stern. “Honey, have you seen my boat shoes?” “They’re abaft the navigation table!” This is the opposite of forward.

Aft : In the stern of the boat. For example, the back cabin is referred to as the aft cabin.

Apparent wind : The wind direction and speed which the crew observes to be blowing in combination with the true wind. This is often different from the true wind direction and speed due to the boat's motion.

Astern : The area behind the boat. If you go astern, you are going in reverse.

Athwartship : Directionally perpendicular to the centerline of the boat.

Backing (a sail) : Forcing the sail to take wind into its opposite side by pulling the sail to the opposite side of the boat.

Backstay : The wire that runs from the back of the boat to the mast head. This prevents the mast from falling forward.

Bailer : Any scoop-like container that is used to remove water from within a vessel’s hull.

Ballast : Weight which adds stability to the vessel. The weight usually is composed of lead or iron and placed low in the boat's hull, such as within the keel.

Batten : a thin, flexible strip (often fiberglass) that is inserted into the main sail to help it stay open to the wind. The batten runs from the back edge of the sail (leech) toward the front edge (luff).

Beam : The width of the vessel at its widest point.

Beam reach : Sailing with the wind blowing perpendicular to the direction the boat is traveling.

Bearing off or Bearing away : Steering the boat away from the direction in which the wind is blowing.

Bend : a knot which connects two ropes.

Berth : A slip, a mooring, or a bed within the boat.

Bight : A bend or loop in a rope. When a rope forms a bight, it has changed direction 180 degrees.

Bilge : The lowest area within a boats hull. This area collects water which is then pumped overboard by a bilge pump.

Bimini : The covering over the cockpit. Usually constructed from a stainless steel frame covered with canvas or fiberglass. It provides protection from sun and rain, but not wind.

Binnacle : The pedestal centrally located in the cockpit that generally holds the steering wheel and navigational instruments.

Block : A pulley.

Boom : This pole runs perpendicular to the mast and holds the bottom of the mainsail in place. Its position is adjustable side to side as needed for the wind direction.

Boom vang : A tackle which ensures that the boom does not lift upward from wind pressure in the mainsail.

Boot Top or Boot Stripe : The stripe of tape or paint between the boat's underwater (bottom) paint and it’s above water (topside) paint.

Bow : Front end of the boat

Bowsprit : The forward most protruding pole or platform which some boats possess. This spar allows for the sails and rigging to be attached further forward.

Broach : When a boat sailing downwind accidentally ends up sideways to the waves and heels over dangerously. This can be caused by large seas or poor steering.

Broad reach : Sailing with the wind coming off your stern quarter. If you’re standing at the helm facing the bow, the wind is blowing halfway between the side and the back of the boat.

Bulkhead : The walls in a boat which run athwartship, or perpendicular to the centerline of the vessel.

Capsize : When a vessel tips over past 90 degrees.

Catamaran : A vessel with two hulls.

Centerboard : A retractable keel which helps the sailboat maintain course and stability underway. When raised, the vessel is able to enter shallow waters.

Centerline : An imaginary line that runs from the center of the bow to the center of the stern.

Chainplate : A metal plate that is secured to the boat's hull to which wires supporting the mast are attached. The chainplates may be exterior or interior, visible or hidden.

Chandlery : A store that sells boat supplies and parts.

Cleats : The wooden or metal piece to which ropes are secured.

Chock : A fitting that a line passes through to change direction without chafing.

Clew : The lower back corner of a sail. This is where the foot and leech of the sail meet.

Close-hauled : Sailing as close to the direction the wind is coming from as possible with the sails pulled in tight. (See Points of Sail for infographic.)

Close Reach : Sailing between close hauled and beam reach. (See Points of Sail for infographic.)

Coamings : The lip around a hatch or window which stops water from entering. Also the raised area around the cockpit to keep out water.

Cockpit : The area from which steering occurs. This can be in the center of the boat or in the back of the boat.

Companionway : The doorway into the cabin.

Cotter pin : a bendable metal pin which is inserted into a metal rod then bent to lock it in place.

Daybeacons : Markers for navigation which are on posts. These are red or green.

Dead run : Sailing with the wind coming from directly behind the boat. Sails are fully out to catch the wind.

Dead reckoning : Determining a vessel's position by knowing the direction and speed traveled.

Dinghy : A small boat which is used to travel to shore from the main vessel. This can be propelled oars or a motor.

Dodger : The structure at the front of the cockpit which protects the cockpit and companionway from wind and spray. This is generally made of stainless steel frame covered with canvas and plastic windows. It can also be a solid structure with solid windows.

Dismasting : When the mast breaks off the boat. This can occur due to rigging failure or structural failure of the mast.

Displacement : The weight of the water that would otherwise be in the place of the boats hull.

Drogue : A sea anchor which is deployed to help control the drift of a vessel. It can be constructed like a parachute, bucket, or even a rope dragging behind the boat.

Ebb tide : After high tide when the water is receding towards low tide.

EPIRB : Stands for Emergency Position Indicating Radio Beacon. This device transmits a distress signal to emergency services and notifies them of a vessel's location.

Fairlead: A fitting which encloses a line within a smooth ring and helps guide its direction.

Fathom : A measurement of water depth equal to 6 feet.

Fid : A pointed tool used when splicing a line.

Fiddle : The raised edge around a table which prevents objects from falling off as the boat rocks or heels.

Fix : Determining a vessel's location by using the compass bearing of two or more fixed points of reference such as landmarks or buoys.

Fin keel : A fixed, ballasted keel which is centrally located beneath the hull. It does not run the full length of the hull.

Flogging : When a sail flaps noisily because it is not being filled by the wind.

Flood tide : Time period between low tide and high tide when the water is rising.

Foot : The bottom edge of a sail.

Fore : At or near the bow of a vessel.

Forestay : The wire which leads from the bow to the top of the mast. The forward most sail attaches to the forestay either directly or by use of a roller furling system.

Full keel : A fixed, ballasted keel which runs the full length of the hull.

Furling system : A system around which the sail wraps when not in use and is unwrapped for sailing. This may be around the forestay or within the mast.

Freeboard : The distance on a vessel from the waterline to the deck.

Galley : The kitchen on a boat.

Gelcoat : A colored resin which is painted onto the outside surface of a boat and forms a protective glossy layer.

Genoa : A large forward sail which, when fully extended, comes back past the mast. Larger than a jib sail.

Gimbals : Often attached to a boat's stove, it is the fitting which allows an object to maintain an upright position when a vessel heels.

Gooseneck : The point at which the boom attaches to the mast. It allows the boom to move in all directions.

Ground tackle : The anchor, chain, and line used to fix a boat to the bottom when anchoring.

Gunwale : Pronounced “gunnel”. This is the top edge of a boat's hull.

Halyard : The line which attaches to a sail to raise it.

Hanks : The clips that attach the front edge (luff) of a sail to the forestay.

Hatch : An opening window in the cabin roof much like a skylight.

Head : Bathroom on a boat. Also, the uppermost corner on a sail.

Headway : The forward motion of a vessel through the water.

Heave to : A method of controlling a boat’s position to the waves and limiting headway by backwinding the forward sail and keeping the rudder hard over into the wind.

Heel : The tilt that occurs to a boat's hull when the sails are filled with wind.

In-Irons : When a sailboat is bow into the wind with sails flapping. No steerage is possible as the vessel has no forward motion. (See Points of Sail for infographic.)

Jackline or Jackstay : Lines that are run from the bow to the stern. To these safety lines, sailors attach a lanyard connected to their harness so that they may work on deck without fear of being swept overboard in rough seas.

Jib : A triangular forward sail.

Jib sheets : Lines used to control the jib.

Jibing : Pronounced with a long i sound. Steering the boat from one downwind direction to another downwind direction by turning the stern of the boat through the wind. This will cause the sails to move across the boat to the other side, i.e. from port to starboard.

Kedge anchor : A small, lighter second anchor.

Keel : The bottom most part of a boat's structure. This part provides ballast and stability.

Ketch : A sailboat with two masts. The forward mast is the taller mast.

Knot : Regarding speed, one knot is equal to one nautical mile per hour.

Lazyjacks : Light lines that run from the boom to the mast and help contain the mainsail while it’s being lowered to the boom.

Leech : The back edge of a sail. If the sail is square, then this term refers to the outside edges of the sail.

Lee shore : The shore onto which the wind is blowing. On an island, the side of the island facing into the wind is the lee shore.

Leeward : The direction to which the wind is blowing. If the wind is coming from the north, then south is leeward.

Luff : The forward edge of the sail.

Lying a-hull : When a vessel is drifting with all of it’s sails down.

Mainsail : Pronounce main’sil. The primary sail of a boat that is hoisted up or unfurled from the mast.

Mayday : An emergency call put out over a marine radio when there is clear and present danger to the crew of the vessel.

Mizzen : The shorter mast behind the main mast on a ketch.

Monohull : A vessel with a single hull.

Mooring field : An anchorage in which permanently anchored buoys are present to which vessels may be secured.

Multihull : A vessel with more than one hull such as a catamaran or trimaran.

No-sail zone : This is an area 45 degrees to either side of directly into the wind. It is not possible for a boat to sail in this zone as the sails cannot fill with wind. Tacking is necessary. (See Points of Sail for infographic.)

On the hard : When a vessel is out of the water and being stored on land.

Painter : The line which secures the bow of a dinghy to the main boat.

Pan Pan : Pronounced pon-pon. This is an urgent distress radio call which is used when a vessel needs assistance. It is one step below Mayday.

Points of sail : The vessels course in relation to the direction of the wind.

Port : The left side of the boat when facing forward.

Port tack : Sailing with the wind hitting the port side of the vessel and the sails are out on the starboard side.

Pulpit : The metal rails at the bow of the boat which protect the crew from going overboard.

Pushpit : The metal rails at the back of the boat to protect the crew from going overboard.

Quarter : The back corner area of the boat. This area is 45 degrees behind, or abaft, the beam of the vessel.

Reef : reducing the size of the sail in high winds for the safety of the crew and equipment. This is done by either tying or rolling the sail to the boom or forestay.

Rigging : All the wires and ropes used to hold the mast in place and adjust the sails.

Roach : The outer back edge area of the mainsail. If you were to draw a diagonal line from the head of the sail to the clew (back corner), the roach would be outside this diagonal line.

Roller furling : A system which rolls the sail up when not in use. The sail is stored on the roller either at the mast or boom for the mainsail, and at the forestay for the jib or genoa.

Rudder : Steering fin at the back of the boat. Controlled by a steering wheel or tiller from the cockpit.

Running : Sailing in a downwind direction.

Running rigging : The lines, such as sheets and halyards, which control the sails.

Schooner : A sailing vessel with two or more masts. The mainmast is at the back.

Seacock : a valve which can be open or closed to allow water to flow in or out of a through hull fitting.

Scope : The length of chain and line that is between the anchor and the boat.

Scuppers : Deck drains which allow water to flow overboard.

Securite : Pronounced securi-tay. This is a radio call to provide mariners with local marine safety information.

Shackle : A metal U or D shaped link which has a removable pin through the ends.

Sheet : A line or rope which connects to the clew (back corner) of a sail. It is used to control or trim the sail.

Shrouds : Wires or ropes which run from the deck chainplates to the mast. The shrouds prevent the mast from moving side to side.

Skeg : A section of the hull from which the rudder hangs. It provides a variable amount of protection to the rudder depending on its size.

Sloop : A single masted sailboat with a mainsail and a foresail.

Slugs : Fittings on the front edge (luff) of the mainsail that slide into the mast track for hoisting the sail.

Spinnaker : A large, light, often colorful sail that is used off the bow of the boat for sailing downwind (running).

Splice : Connecting two lines together by weaving their strands together.

Spreaders : The horizontal arms extending out from the sides of the mast.

Spring line : Dock lines positioned from the bow to a midship point on the dock or from the stern to a midship point on the dock. This line configuration helps decrease forward and backward motion of the boat while docked.

Stanchions : The metal posts along the outside edge of the deck through which the lifelines run.

Standing rigging : The wires and ropes, such as the shrouds and stays, that are permanently in place and hold up the mast.

Starboard : The right side of the boat when facing forward.

Starboard tack : Sailing with the wind hitting the starboard side of the boat and the sails out on the port side.

Stays : The wires or ropes which run from the bow and stern to the mast top to keep the mast from moving forward or backward.

Steerage way : When a vessel is moving through the water with enough speed to allow the rudder to steer the boat.

Stern : The back end of a boat.

Storm jib : A small, strong forward sail used in heavy winds.

Swing : The circular motion of an anchored boat around it’s anchor due to wind and water movement.

Tack : The forward lower corner of a sail.

Tacking : Turning the boat across the direction the wind is coming from to change course direction. This causes the sails to travel to the other side of the boat.

Tender : Small boat used to transport from shore to the main boat.

Tiller : A bar which controls the rudder and is used to steer the boat from the cockpit. It is used in place of a steering wheel.

Toe rail : The raised lip around the edge of the deck. This can be constructed of wood, fiberglass, or aluminum. It helps prevent items from rolling overboard.

Topping lift : A wire or rope which runs from the back end of the boom to the mast top. This line controls the height of the boom.

Trysail : A small, strong storm sail that is used in place of the mainsail in high winds.

Trim : To adjust the sails.

Winch : A round, drum-like mechanical device used to pull on a line to raise or adjust sails.

Windlass : A winch used to raise and lower the anchor.

Windward : The direction from which the wind is blowing.

Wing on wing : Sailing downwind with the mainsail out on one side and the foresail on the opposite side.

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Beth lives on board her 1983 30ft S2 sailboat with her husband, 6 year-old son, and her two fur babies. She has been sailing and boating for most of her life. Beth has been blessed to experience cruising in the Great Lakes, the Bahamas, and in Alaska. She loves to travel and adores living on her tiny boat with her family.

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50 Nautical, Sailing & Boat Terms for Beginners 

Table of Contents

Boating has its own vocabulary and if you’re going to be spending time on the water, you should understand a few basic boat terms. Knowing these will make you safer as well as more useful whether boating on your own, chartering or helping friends on their boat.

Let’s divide these words into basic nautical terms and specific sailing terms, listed in alphabetical order.

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30 Commonly Used Nautical & Boating Terms

Here are a few expressions you’ll hear aboard both a powerboat and sailboat, or even at the dock before boarding your boat rental or charter.

• Aft – the direction toward the back or stern of a boat.
• Ashore – not on a boat but on land or a dock .
• Ballast – extra weight laid low in a boat to provide stability.
• Beam – the width of a boat at its widest point, usually the middle.
• Bow – the front of a boat. Multihulls like catamarans have more than one bow.
• Bunk – a built-in bed on a boat.
• Cabin – the sleeping accommodations on a boat .
• Cockpit – the main seating area of a boat that may also include the helm station .
• Crew – the people or staff that help drive and manage the boat.
• Deck – the top or horizontal structure that is laid over the hull of a deck.
• Dock line – the ropes used to tie a boat to a dock.
• Fender – a rubber, vinyl or foam bumper used to protect the boat at a dock; often referred to by novice boaters as “bumpers.”
• Forward – the direction toward the front or bow of a boat.
• Galley – the kitchen on a boat. It can be inside or out on deck.
• Head – the toilet or bathroom on a boat.
• Helm – the boat’s steering mechanism. It can be a tiller or a wheel.
• Helm station – the area where from which you command or drive a boat.
• Hull – the body or shell of a boat including the bow and stern.
• Keel – the longitudinal structure at the bottom of the hull and generally on the centerline. The keel helps with stability and tracking.
• Knot – either various loops tied in a line or a unit of speed which equals one nautical mile per hour.
• Line – any rope on a boat is referred to as a line – not a rope.
• Nautical mile – a unit of measurement used on the water. A nautical mile is approximately 1.2x a statue mile.
• Onboard – on a boat whether on deck, on the cockpit or below.
• Port – the left-hand side of a boat when you’re facing forward or toward the bow.
• Rudder – an appendage below the boat that is controlled by the wheel or tiller to steer the boat. A boat may have more than one rudder.
• Starboard – the right-hand side of a boat when you’re facing forward.
• Stern – the place at the back of a boat.
• Transom – the actual structure of the back edge of a boat.
• Wake – the turbulence left behind a moving boat.
• Waterline – the place where the hull of a boat meets the surface of the water.

20 Sailing & Sailboat Terms

Within boating, sailing has its own specific vernacular. You’ll want to understand it before you step aboard a sailboat to help crew or when taking a lesson.

• Apparent wind – the combination of true wind and the motion of the boat at the time. It’s the wind you feel onboard.
• Boom – the horizontal pole which extends from the mast aft. It holds the bottom of the mainsail.
• Ease – to adjust sails outward or away from the centerline of a boat.
• Halyard – the line used to raise a sail whether a mainsail or a headsail.
• Headsail – a sail that is forward of the mast. It can be a genoa, a jib, a staysail or a small storm sail.
• In irons – technically a point of sail when you’re head-to-wind meaning the bow is pointing directly into the true wind and the boat is unable to maneuver.
• Jibing (also spelled gybing) – changing direction where the stern swings through the eye of the wind.
• Leeward – the direction away from where the wind is blowing.
• Mainsail – the primary sail on a boat which is usually attached in some way to the mast and boom. On most sailboats it’s the primary source of power.
• Mast – the vertical pole that supports the sails. The mast itself is supported by the rigging.
• Points of sail – the boat’s direction under sail relative to the true wind . The points of sail are: close-hauled, close reach, beam reach, broad reach and dead run.
• Reefing – shortening or reducing the area of a sail to de-power a sailboat usually used in a strong wind.
• Sheet – the line that controls the angle of a sail. There are mainsheets, jib/genoa sheets and others.
• Shroud – a part of the boat’s rigging that supports the mast from side-to-side
• Stay – a part of the boat’s rigging that supports the mast fore and aft.
• Tacking – changing direction under sail where the bow swings through the eye of the wind.
• Trim – to adjust sails inward or closer to the centerline of a boat.
• True wind – the actual wind that is blowing – both direction and speed.
• Winch – a rotating drum used to help control lines with a lot of pressure on them. A winch is cranked with a winch handle.
• Windward – the direction from where the wind is blowing.

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Zuzana Prochazka is an award-winning freelance journalist and photographer with regular contributions to more than a dozen sailing and powerboating magazines and online publications including Southern Boating, SEA, Latitudes & Attitudes and SAIL. She is SAIL magazines Charter Editor and the Executive Director of Boating Writers International. Zuzana serves as judge for SAIL’s Best Boats awards and for Europe’s Best of Boats in Berlin. 

A USCG 100 Ton Master, Zuzana founded and manages a flotilla charter organization called Zescapes that takes guests adventure sailing at destinations worldwide. 

Zuzana has lived in Europe, Africa and the United States and has traveled extensively in South America, the islands of the South Pacific and Mexico. 

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• Glossary: essential terms a sailor should know

We have put together a comprehensive list of essential sailing terms to enhance your nautical knowledge. Delving into diverse areas such as meteorology, navigation, and boat equipment, our glossary covers sail types, boat components, and crucial units of measurement and abbreviations that every sailor should be familiar with. Plus, you'll find terms unique to charter boats, the boat rental process, safety at sea, signalling aids, and modern sailboat technology.

Anchor windlass is a mechanical device used to hoist and lower the anchor and its chain on a boat. It operates under high tension and typically has its own circuit breaker to protect it from electrical overloads. When using an anchor windlass, it is essential to allow for short breaks during operation to prevent it overheating and any resultant damage to the equipment.

Anticyclone is an area of high air pressure.

Apparent wind is the wind we perceive when we are on board and results from the vector sum of the real wind and the wind generated by our motion while sailing. The topic of apparent wind is covered in detail in our article — Apparent vs. true wind .

Autopilot is a device designed to steer a boat along a predetermined course. It independently adjusts the rudder as required, ensuring the vessel follows the set path to its destination as accurately as possible. 

Baby net or safety net is a safety feature that prevents small children from falling off the deck into the water. It is a net similar to a fishing net, which is installed along the boat's railings. A baby net does not come as standard with a rental boat, so always discuss it with the salesperson when booking if you want to order the net from the charter company. We discuss safety features in our article — Sailing with kids: how to keep all of you safe and happy .

Safety nets on the boat effectively prevent children from falling into the water.

Barber hauler is a sail control device used to adjust the angle of the jib or genoa sail in relation to the wind, mostly found on more sporty boats. It consists of a line or tackle system attached to the clew of the sail, allowing sailors to fine-tune the sail's position for optimal performance and improved windward efficiency.

Bathing or swim platform , is a foldable structure located at the stern of a boat, providing easy access to the water for swimmers or during training activities. When sailing, it is advised to keep the bathing platform closed and secured in place, rather than left extended.

Batten is the reinforcement in the mainsail. Mainsails are generally classified based on their shape and construction, with variations such as full-batten, partial-batten, or no-batten mainsails.

Beaufort scale  is a widely recognized scale in the sailing world. It categorizes wind forces and their corresponding effects on sea surface conditions, allowing skippers to estimate wind strength visually. By observing the behaviour of the sea surface and the wind's impact on it, sailors can use the Beaufort scale to make informed decisions about their sailing course and speed.

Bearing compass is a type of compass that is used to determine the bearing, or direction, of an object or location relative to the compass itself. It is commonly used in navigation to determine the direction of a distant landmark or to maintain a specific course while sailing.

Bimini  is an alternative term for a sun canopy that provides shade for the helmsman's station and the rear portion of the cockpit. In the rain, it serves as a slight protection from the water. Often, however, sailors fold it up for sailing, and sometimes there is no other way to do it, as the mainsail sheet passes through it.

Boom is a horizontal spar, typically made of aluminum or carbon fiber, that attaches to the mast and holds the foot of the mainsail. It runs perpendicular to the mast and is held in place by a combination of topping lift, mainsheet, and outhaul.

Bora is a powerful, cold wind originating from the north to north-east that frequently affects the Adriatic Sea. It can pose a significant risk to sailors navigating the region. To learn more about the Bora and its impact on sailing in Croatia, check out The Bora: the scourge of the Adriatic .

Bow thruster  is a mechanism located at the bow of a vessel that assists with maneuvering while in port. It is not intended to replace the main engine and should not be used while sailing. The primary function of a bow thruster is to help shift the boat's bow to port or starboard. It's essential to operate the bow thruster with caution, as it has a high voltage. Use short, intermittent presses (2-3 seconds) rather than prolonged holds to prevent the bow thruster from burning out and becoming inoperable.

Bowsprit is a spar that extends from the bow of a sailboat. It is used to attach the forestay, which supports the mast, and to extend the sail area forward. On historic ships it is slightly angled upwards towards the sky. On more modern boats it extends straight out from the bow and may be retractable or foldable to make docking and storage easier.

Brackish water is water that is neither salty like the sea nor fresh like freshwater streams. Its salinity is somewhere in between. It is most often found at the mouths of rivers or in lakes by the sea.

Breeze is a periodic wind phenomenon caused by differences in air temperature between day and night. According to the time when it occurs, it is distinguished between day (sea) and night (land). The breeze is a beautiful sailing breeze. Read more about breezes in our guide — Understanding land and sea breezes: how they can affect your sailing .

Buoy field  is an arrangement of multiple buoys within a bay, anchored to concrete blocks on the seabed. Typically, a fee is charged by the operator for using these buoys, but the cost is generally lower than docking at a pier or marina.

Cardinal marks are navigational aids that indicate the location of safe water relative to a hazard. They are named after the four cardinal points: North, East, South, and West.

Cardinal marks

Charter company owns the boats that are available for rental and acts as a partner to businesses like ours. We feature their boats in our search portal .

Check-in is the process of taking over a charter boat. You can find out more about what you need to look out for in our guides Boat check-in: examining a yacht down to the last screw and Inspecting your rental boat: a complete checklist and guide

Check-out is the handing over of the boat to the charter company at the end of your yacht charter holiday.

Cirrus clouds are characterized by their wispy, hair-like appearance, resembling algae, tufts, or manes. These clouds are translucent, cast no shadow of their own, and have extremely fine fibres.

Cleat  is a metal object attached to the deck of a boat used to secure the boat. It may also be on a pier.

Cleats can also be found on the pier.

Cockpit is an area towards the rear of a sailboat, typically designed for the crew to steer, navigate, and control the boat. It is the central location where the helm, rudder, and various lines, winches, and controls for sails are accessible.

Code Zero is a unique sail that isn't found on all sailboats. It is similar to a larger, deeper genoa but made from a lighter material. The sail is equipped with its own furling line and endless loop for easy deployment and storage.

COG (Course Over Ground) refers to the direction of a vessel's movement measured in relation to the earth's surface or the seabed.

COLREG  is a shortened term in English that stands for the Convention on the International Regulations for Preventing Collisions at Sea. These regulations provide rules for watercraft operation, ensuring clear right-of-way guidelines.

Cumulus clouds are generally puffy and white, with a flat base and a rounded top. They can have a cauliflower-like appearance, and their edges may be well-defined or fuzzy. 

Cunningham is a type of rope that runs from the base of the mast to the lower edge of the mainsail, allowing the sailor to stretch the edge of the sail downward. It is typically located on the side of the mast that is opposite to the outhaul.

Cyclone is an area of low air pressure.

Dew point  is the temperature at which the air becomes saturated with water vapour and begins to condense into dew.

Dinghy , also known as a tender , is a small boat often used by sailors to transport themselves and their supplies to and from their anchored or moored boat. Dinghies can be inflatable or made of hard materials like fiberglass or aluminum.

Dodger,  also known as  sprayhood,  is a protective structure mounted at the front of the cockpit on a sailboat. It shields the cockpit and companionway from wind, spray, and waves, providing shelter and improved comfort for the crew

EPIRB (Emergency Position Indicating Radio Beacon) is an emergency distress beacon that is used to transmit a distress signal to rescue authorities in the event of an emergency situation

Fender is a cushioning device made of rubber, plastic or foam that is used to protect a boat's hull from damage when it is moored against a dock, pier or another vessel. 

Flare is a signalling device used to call for help in an emergency. Its misuse is punishable.

Fog horn is a signalling device that produces loud, low-pitched sound blasts to warn other vessels of the presence of your boat in conditions of reduced visibility, such as fog or heavy rain.

Foil is a hydrodynamic device that is used to lift the hull of a boat out of the water and reduce drag. Foil technology is also used in other water sports such as windsurfing, kiteboarding, and wingfoiling.

This is what a foil looks like on a racing catamaran.

Gangway is a temporary bridge or walkway that connects a boat to a dock, allowing people to move between the two structures.

Gennaker is an additional sail that is similar to a genoa. It is made of lighter material, which makes it ideal for lighter winds. Gennakers often have distinctive colours, and there are several reasons why sailors might want to rent and try one out.  Check out our 5 reasons to rent a gennaker .

Genoa , also known as genoa jib , is a type of sail that is positioned forward of the mast and is used on sailing boats. It typically covers the area from the mast to the bow of the boat, and is larger than the mainsail. It can range in size from 100% to 150% of the foretriangle, which is the triangle formed by the mast, forestay, and deck.

GPS , which stands for Global Positioning System, is a satellite-based navigation system that provides location and time information anywhere on Earth. Sailors can use an electronic GPS device to accurately determine their position on the water.

Gulets are double-masted boats designed and built based on traditional Turkish wooden sailing boats. One of the typical destinations for gulets, which we also offer, is Turkey.

Gybe or jibe is a sailing maneuver where the sailboat's stern is turned through the wind to change the wind direction from one side of the boat to the other, usually while sailing downwind. The boom of the sail swings across the boat during a gybe, and it should be performed carefully to prevent accidents and damage to the boat and crew.

Harness is a safety device used in sailing that is attached to a sailor's body or life jacket and secured to the boat's deck with a buckle to prevent falling overboard.

Halyard  can is a rope used to raise different types of sails such as the mainsail, jib, genoa, spinnaker, and gennaker. Each sail will typically have its own dedicated halyard to hoist it up the mast.

Hatch is an opening on the deck or cabin top of a boat used for ventilation, access, or as an emergency exit.

Horseshoe life buoy is a U-shaped buoyant device made of foam or other buoyant material, and is used as a safety device in the event of a person falling overboard. It is typically kept on board a boat, often near the stern on the railings.

Impeller is a small component (propeller) in the engine that provides suction and circulation of seawater in the engine cooling. Because it is such a crucial component, you will usually find a spare one on board.

Isobar is a line on a synoptic chart that connects two points where the atmospheric pressure is the same.

Isolated hazard refers to a navigational mark or buoy placed in the sea to indicate a potential danger, such as a shoal, rock, or other underwater obstruction located in open water. While it is possible to sail around an isolated hazard, it is generally recommended to maintain a safe distance by navigating around it in a larger arc.

Isotherm is a line connecting two points of the same temperature.

Check out more tips for sailors:

Flags on boat

What to remember to bring on board

What else should you take on a yacht?

Examining a yacht down to the last screw

Yacht charter costs

Autumn sailing holidays for everyone

What skipper's licence do I need and where does it apply

How to plan your sailing route properly

Clever on-board light sources

9 essential sailing knots

10 reasons to go on a 14-day charter

3 easy sailing routes in Greece

Jib is the term for a headsail that fills no more than 100% of the area between the forestay and the mast.

Jugo , also known as Sirocco , is a moody and unpredictable south to south-easterly wind found in the Adriatic. Find out more about it in our guide — The Croatian Jugo wind: when and where it occurs and why to be on the lookout! !

Keel , which is the heaviest component located beneath a boat and has the lowest center of gravity, plays a vital role in maintaining the vessel's stability. It typically accounts for up to 40% of the boat's weight and can have a fin or bomb shape. The keel's primary purpose is to stabilize the boat and prevent it from capsizing by helping to restore it to a horizontal position when it is tilted due to wind or waves.

Kicker , also known as a boom vang or vang , is a mechanical device consisting of ropes or a piston that is connected between the deck, boom, and the base of the mast. It is used to control the shape of the mainsail by adjusting the tension on the leech of the sail and controlling the boom's vertical position.

Knot can be the one on the rope or also a unit indicating the speed of the boat. It's equivalent to 1.852 kilometres per hour.

Lazy bag (sometimes called a lazy pack  or stack pack ) is a large cover designed to store a folded mainsail on the boom.

The lazy bag is attached to the boom and the mainsail falls into it when it is folded.

Lazy jacks are lines holding the lazy bag.

Leech  or  leach is the back edge of the sail.

Libeccio or Lebić  is a south-westerly to westerly wind and is typical of northern Corsica, the coast of France, Italy and also the Adriatic, where it usually arrives just after the Jugo/Sirocco. Read more about this wind in our article — The Libeccio/Lebić: a stubborn, unpredictable wind .

LOA  stands for  Length Overall , which is the maximum length of a vessel measured from the foremost point of the bow to the aftermost point of the stern, typically along the waterline.

Logbook is a document where a sailor writes down details of a voyage including weather, the boat's course, position and other information.

Mainsail , sometimes also referred to colloquially as the "main," is the sail that is hoisted up the mast of a sailboat.

Mainsheet track or traveller  is the rail on which the   mainsheet car or block moves back and forth, allowing for adjustment of the angle of the mainsail relative to the wind. Racing boats typically have the mainsheet track located in the cockpit for maximum adjustability, while recreational sailboats may have it located closer to the mast.

Marina is just another name for a harbour for recreational boaters. A marina often has social facilities, a shop, offices of charter companies, etc.

Marinero is a Spanish term for a marina worker who assists with various tasks, such as helping boats to dock and providing assistance to boaters with any issues or needs they may have while in the marina.

Mast is a tall vertical spar that supports the sails on a sailing vessel. It is typically located in the center of the boat and is stepped (or mounted) on the keel or deck. The mainsail is hoisted up the mast and attached to it, while the jib or headsail is usually attached to the forestay, which is a cable or wire that runs from the top of the mast to the bow of the boat. 

Meltemi  is a dry northerly wind that occurs mainly in the Aegean and eastern Mediterranean, from late May to late September. Read more about this wind in our guide — The Greek Meltemi: friend or foe? .

Mistral  is a cold wind found, for example, in France. It works on a similar principle to the Croatian bura. For more information, check out our article — The Mistral: a turbocharger for experienced sailors .

MOB stands for Man Overboard , which refers to the emergency situation where a crew member has fallen into the water and immediate action is required to retrieve them. Find out more in — Man Over Board (MOB): a step-by-step guide .

Mooring  can refer to any type of permanent anchor or buoy to which a boat can be tied up .  Commonly on the Adriatic, it consists of a concrete block on the bed and a rope leading to shore. The boats are then moored to it at the pier or jetty. It is a very convenient and easy way to moor a boat.

Mooring bollard  is a sturdy vertical post or pole, often made of metal or wood, that is used as a mooring point for boats.

Bollards serve both recreational boats and transport or cargo ships. Therefore, it is often large in size.

Mooring hook is pole with a hook used by boaters to grab onto a mooring buoy or other floating object in the water and retrieve the mooring rope attached to it.

Nautical flag alphabet (International Code of Signals) is a special set of characters, words and flags that sailors around the world use to communicate.

The nautical alphabet is also used in aviation.

Nautical mile is a unit of distance at sea. 1 NM equals 1.852 m. But be aware that it differs in length to a land mile!

Occluded front  is a type of weather front that occurs when a fast-moving cold front overtakes a slower-moving warm front. This results in the warm air being lifted off the ground and creating clouds and precipitation.

Offshore typically refers to sailing or boating in open water, away from the coast or shore. This type of sailing can involve more challenging conditions and requires greater skill and experience. Read more about it our article — Beyond the shoreline: 10 things to consider when offshore sailing .

Outboard engine or outboard motor is a small portable engine designed to power a dinghy. It is ordered as an extra with the boat rental.

What the seagull's sitting on is an outboard motor.

Outhaul is a control line on a sailboat that adjusts the tension of the mainsail foot, which is attached to the boom. It allows the sailor to control the depth and shape of the mainsail along the boom.

Plotter is an electronic device used for navigation that displays and tracks the boat's position and movement using GPS technology. It is often located in the cockpit.

Port (side) is the term for the left-hand side of the boat when facing forward.

Porthole  is a term for a small, usually circular window on a boat or ship.

Preventer  or boom preventer is an auxiliary line or rope that is rigged from the end of the boom to a sturdy point on the deck, mast, or other secure attachment point on the boat. The purpose of the preventer is to restrict the boom's movement and prevent an accidental or unintentional jibe, which can happen when sailing downwind or on broad reach courses.

Propeller is a device consisting of blades that rotate to provide propulsion for a boat's engine. It is often located at the stern (back) of the boat and is powered by the boat's engine.

Propwalk is a phenomenon that occurs when a boat's propeller produces a lateral force that causes the boat's stern to move to one side when the engine is in gear. This is particularly noticeable at slow speeds and when maneuvering in tight spaces, such as a marina or dock.

Propwash is the turbulence created by the rotation of the propeller. Propwash deflecting off an angled rudder allows even large boats to turn in a tighter space.

Quebec flag signal (yellow) in the International Code of Signals means "My vessel is healthy and I request free pratique" which is a signal made by a ship entering port to request permission to enter and clear customs and immigration. It is usually used when sailing abroad. To learn more about crossing borders, take a look at Can you cross national borders with a charter boat?

Reefing  is a technique used to reduce the area of the sail in order to maintain control of the boat and prevent it from being overpowered in strong winds. Charter boats usually have 2 or 3 degrees of reefing available.

Railing  is another term for the guardrails around a yacht.

Rigging refers to the system of ropes, wires, and hardware that support and control the sails and masts on a boat or ship. It includes not only the mast, boom, and standing rigging (wires or rods that support the mast), but also the running rigging (ropes that control the sails), such as halyards, sheets, and control lines.

Rudder blade is the part of the steering system that is underwater. A boat may have one or two rudder blades.

Safety line is a line running along the deck of the boat by which sailors fasten their harnesses to prevent them from falling into the water when the boat is heeling or in large waves. The safety line is not automatically installed on the boat and must be installed separately.

Self-tacking jib is a type of headsail that is specifically designed to tack without the need for adjusting the sail position or manually pulling on the sheets. The sail is attached to a track or a traveler that runs athwartships on the boat and allows the sail to pivot and change sides without having to be moved or adjusted manually.

Shackle is a small metal device used to attach a line to a sail. It is used to connect the sail to the halyard or other lines on the boat. It can also be used to connect different sails together or to connect a sail to a spar or other structural element of the boat.

Sheet is a rope or line used to control the angle and shape of a sail. There are different sheets for different sails, such as the mainsheet for the mainsail, the jib sheet for the jib sail, and the spinnaker sheet for the spinnaker sail.

Shrouds are actually a type of standing rigging, which are the fixed lines or wires that support the mast of a sailboat. They run from the mast to the sides of the boat, and help to keep the mast upright and stable.

Spreader  is a horizontal strut that extends from the mast to the side of a sailboat, providing support for the mast and helping to spread the shrouds that support the mast.

Spinnaker pole  is a long and sturdy pole used to hold the clew (bottom corner) of a spinnaker sail out from the mast of a sailing boat.

Steering wheel is the device used to control a boat's direction. It is connected to the rudder blade through a steering mechanism. Boats can have one or two steering wheels depending on size and design.

Storm sails are special sails, usually orange in colour, whose small surface area and strong material allow sailing in storms. The sails are not installed on the boat all the time, they need to be unpacked from the hold when needed. Ask at check-in where the storm sails are located on the boat.

Storm sails often have a distinctive colour.

Skipper is just another name for the captain, the skipper of a yacht. Would you like to become a skipper too? Take a look at our sailing courses .

Spinnaker is a large, lightweight and often colourful sail that is designed to be used when sailing off the wind, such as on a reach or a downwind leg.The spinnaker is attached to the boat's mast and is supported by a spinnaker pole.

Spin-out refers to a situation in which a boat, while sailing downwind, loses control and starts turning towards the wind.

Sprayhood is a protective covering, typically made of canvas or other durable material, that is installed over the companionway (entrance to the cabin) of a sailboat. Its primary purpose is to shield the cockpit and the interior of the boat from wind, spray, and rain while underway

SRC stands for Short Range Certificate , which is a certification required for operating a marine VHF radio.

Starboard is the term used to describe the right-hand side of a boat when facing forward.

Stay is a term used to refer to a piece of rigging that helps support the mast of a sailing vessel. It typically runs from the top of the mast to the bow of the boat, forming a triangle shape along with the mast and the boat's deck.

Stratus is a type of low-level cloud characterized by its uniform, featureless appearance that often covers the entire sky.

Synoptic map , also known as a weather map, is a graphical representation of current weather conditions created using data collected from weather stations, satellites, and other sources.

Tack is the maneuver of turning the sailboat against the wind.

Telltales are pieces of yarn or fabric that are attached to a sail, stay, or rigging on a sailboat. They are used as a guide for trimming or adjusting a sail by providing information about the airflow around the sail.  

Telltales on a sail

Tender is another word for dinghy.

Tiller is a rod used to move the rudder blade and control the direction of the boat. It is often used on smaller sailboats instead of a steering wheel. In case of an emergency, there might be a spare tiller onboard as a backup.

Topping lift  or topenant is a line that runs from the end of the boom to a point high on the mast, which supports the boom and prevents it from dropping too low when the mainsail is not raised.

Trade wind is a wind that blows steadily towards the equator from the northeast in the Northern Hemisphere and from the southeast in the Southern Hemisphere, usually found in tropical regions.

Transom is the reinforced vertical portion located at the stern of a boat. It connects the sides of the boat, giving it form and structure. The transom is also where an outboard motor is typically attached to the vessel and where the boat's name may be painted.

True wind is the actual wind that exists in the environment and is not affected by the motion of the body or the vessel. It is the wind that would be felt if the vessel were stationary.  Find out more in our article — Apparent vs. True Wind .

We found nothing for this letter except in the nautical alphabet (U: Uniform – you are heading into danger). If you can think of something to go here, get in touch.

Venturi wind is a localised wind flow originating and blowing out of a strait, for example between hills or rocks.

VHF  (short for Very High Frequency ) is electromagnetic waves that allow radio communication between ships, aircraft, ports, etc. 

Winch  is a mechanical device consisting of a drum that rotates either manually or powered by an electric or hydraulic motor. The rope or line is wrapped around the drum and as it rotates.

Drum-shaped rope winch.

Wind vane (otherwise known as a weather vane, wind indicator or a wind sock) is a small device at the end of the mast whose arrow indicates where the wind is blowing from.

If you can think of a term that could be here, please write to us.

Which of our boats will you take out on the waves?

Practice your sailing terminology on the water. get in touch and we'll find the perfect sailing boat for you..

Denisa Nguyenová

A Complete List Of Sailing Terms

Sailing terminology and jargon can be difficult to understand for a complete beginner.

We've compiled a list of sailing terms, vocabulary, lingo, and phrases with their meanings and definitions.

Filter the sailing terms by letter:

A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Y | Z

The sailing terms beginning with the letter A are:

• Abaft : Toward the stern of a boat and behind the middle of the boat
• Abandon Ship : An instruction to leave the boat immediately. This is an emergency situation and everyone needs to get off the boat
• Abeam : On a line at right angles to a ship's or an aircraft's length
• Able Seaman : A crew member with experience and expertise in working on deck and handling the sailboat's rigging and equipment
• Aboard : This is a nautical term to describe being on or in a boat
• Above Board : This means anything on or above the boat deck
• Adrift : Not anchored or not securely moored, drifting with the current or wind
• Aft : The aft is the area at the back of the boat. It is also known as the stern
• Aft cabin : This is a sleeping cabin at the aft side (rear) of the boat
• Aftmost : Furthest towards the stern (back) of the boat
• Aground : When the boat is resting on or touching the ground below the bottom of the water
• A-hull : A-hull refers to a situation where a boat is secured to its anchor and is lying in the direction of the wind and waves, with all sails furled and no movement. This is typically done as a safety measure in severe weather conditions when the boat is in danger of capsizing or otherwise being damaged. It is also used as a strategy to wait out a storm or other adverse weather
• Alee : Away from the wind
• All Hands On Deck : This phrase is used to call all crew members to the deck of a sailing vessel, and is often used as a call to action in times of emergency. It is also considered a good omen for a ship to have all hands on deck before setting sail.
• Aloft : Above the deck or in the upper parts of the mast or rigging
• Anchor : A device used to hold or anchor a boat in a specific location on the water
• Anchor Buoy : A buoy attached to an anchor that is used to indicate the location of the anchor on the bottom
• Apeak : When the anchor is at the highest point of the bow when it is rode out
• Apparent Wind : The wind direction and speed observed by the crew in combination with the true wind direction and speed, which can be different due to the boat's motion
• Ashore : To or on the shore or land from the direction of the sea
• Astern : Behind or at the rear of a boat. If a boat is traveling astern, it is going in reverse
• Athwartship : Having a position across a vessel from side to side at right angles to the keel

The sailing terms beginning with the letter B are:

• B & R Rigging : B&R rigging refers to a specific type of rigging system used on sailing boats. The B&R rigging system is a combination of a traditional forestay and backstay system, with a flexible rig that allows for a more efficient sail shape in a wide range of wind conditions
• Back A Sail : Back a sail refers to the action of filling a sail with wind from the opposite direction, or "backwards" direction of the sailboat's forward motion. This is done by adjusting the sail and the direction of the boat so that the wind is blowing into the back of the sail, causing the sail to fill with wind and push the boat in the opposite direction. Backing a sail can be used to slow the boat down, change direction, or to help keep the boat in a specific location
• Backstay : A rope or cable that runs from the mast to the stern of a sailboat. It is used to support the mast and control the shape of the sails
• Baggywrinkle : A soft covering for cables to reduce sail chafe
• Ballast : Ballast refers to the weight placed on the bottom of a sailboat to improve its stability and balance. The weight of the ballast helps to counteract the force of the wind on the sails
• Ballast Keel : A vertical downward extension of the boat's hull, narrowly V-shaped. It is ballasted or weighted for stability and lateral resistance
• Barque : This is a sailboat with 3 or more masts with all the masts being square-rigged except the sternmost, which is fore-and-aft-rigged
• Batten : A batten is a primary structure of a mainsail. It supports the sail's shape
• Beam : The width of the boat, measured at its widest point
• Beam Reach : A point of sail in which the wind is coming from the side of the boat, resulting in the sails being at a 90-degree angle to the centerline of the boat
• Bear Away : Bear away, also known as falling off, means to turn a boat away from the direction of the wind
• Beat : This is sailing in a zig-zag formation toward the wind
• Beaufort Scale : A scale used to measure wind speed and the resulting sea conditions. It is named after Francis Beaufort, an officer in the Royal Navy
• Below Deck : Below deck in boating refers to the interior of a boat, typically the area below the main deck. This area is usually enclosed and protected from the elements, and typically includes living spaces such as cabins, heads (bathrooms), galley (kitchen), and salon (common area).
• Bermuda Rig : A Bermuda rig, also known as a Marconi rig, is a type of sailboat rigging that is characterized by a triangular mainsail and a jib sail. The mainsail is attached to the mast and the boom, with the boom extending out from the mast. The jib sail is attached to the forestay, which is a cable or rope that runs from the bow of the boat to the mast
• Bermuda Sloop : Bermuda sloop is a specific type of sailboat design that originated in Bermuda. It is characterized by a single mast, with a triangular mainsail and a jib sail, and it is the most popular sailboat design in the world. Bermuda sloops are known for their efficiency and ability to sail well in a wide range of wind conditions.
• Berth : A bed or sleeping area on a boat. For example, a 6-berth boat is a boat that can sleep 6 people
• Bight : A bend in a sailing rope
• Bimini Top : A Bimini top is a type of boat cover or canopy that is mounted on the top of a sailboat, typically on the stern or the cockpit area. The Bimini top provides shade and protection from the sun and rain for the passengers and crew on the boat
• Bilge : The lowest part of a boat's interior, typically located near the keel, where water collects and needs to be pumped out
• Binnacle : A binnacle is a housing or container on a boat that is used to protect and secure a vessel's compass. It is typically located near the helm or steering station
• Bon Voyage : This is a French phrase that literally means "good voyage" and is often used as a way to say "good luck" to someone setting out on a journey
• Boom : A boom on a sailboat is a horizontal spar, or pole, that extends out from the mast of a sailboat. The boom is used to support and control the bottom edge, or foot, of a sail. The boom also helps to shape the sail and control the angle at which the wind hits it, allowing the boat to move efficiently through the water
• Bosun : A crew member in charge of maintenance and upkeep of the boat's hull, rigging, and equipment.
• Bow : The bow is the front area of a boat
• Bridge : A room or platform area of a boat from which the boat can be operated
• Brig : A sailing vessel with two square-rigged masts
• Brigantine : A two-masted sailboat, square-rigged on the foremast but fore-and-aft-rigged on the mainmast
• Bulkhead : A bulkhead refers to a vertical wall within the interior of a boat that helps to divide the space and provide structural support. They are typically found below deck on a sailboat
• Bumper : A type of fender used to protect a boat from damage when it is moored or docked.
• Buoy : It is a device or object that is placed in the sea to aid navigation. For racing, it's used to set the race course and for recreational sailing, it is used to mark areas to avoid (among a few other purposes)

The sailing terms beginning with the letter C are:

• Cabin : This is a room inside a boat, typically found below the deck
• Canvas : A boat canvas refers to the various types of fabric or material used on boats to provide protection, shade, and shelter. Types of canvas include Bimini top, sail cover, dodger, etc.
• Capsize : When a boat heels over so far that the keel is lifted out of the water and the boat overturns
• Captain : The person in command of the sailboat. They are responsible for operating the boat safely
• Catamaran : Any vessel with two hulls
• Center-board : A board lowered through a slot in the keel to reduce leeway
• Chart Plotter : An electronic navigation device that plots the location and position of a sailboat on the water
• Cleat : A cleat is a device used on boats to secure ropes or lines. It typically consists of two horizontal arms with holes or slots that can be tightened around a rope by pulling on the line and then making a turn or two around the arms. Cleats are used to secure lines when docking, mooring, or anchoring a boat, and can be found on the deck, gunwale, or cockpit of a boat
• Clew : A clew is the lower aft corner of a sail
• Clipper : A sailboat designed for speed
• Cockpit : An enclosed space on a sailboat's deck where a sailboat is controlled or steered
• Cook : A crew member responsible for preparing and cooking meals for the crew
• Course : This is the direction in which a boat is traveling
• Close-Hauled : A point of sail where the boat is sailing as close to the wind as possible

The sailing terms beginning with the letter D are:

• Dead Reckoning : a method of navigation that involves calculating a ship's position by using information about its speed and direction over a certain period of time
• Deadrise : The angle between the bottom of a boat and the horizontal plane of the water
• Deck : The horizontal surface area on the top of the boat
• Deckhand : A member of the crew responsible for various tasks such as hoisting sails, steering the ship, and maintaining the deck
• Dock : A fixed structure attached to the shore to which a vessel is secured when in port
• Downbound : This is when a vessel is traveling downstream
• Draft : The depth of water a boat requires to float measured from the waterline to the lowest point of the hull
• Drift : The sideways movement of a boat caused by wind or current
• Drogue : A device that is towed behind a boat to slow it down or to keep it from drifting too quickly
• Drowned Out : When the wind is too strong for the sails and the boat can no longer make headway

The sailing terms beginning with the letter E are:

• Ease : To let out or slacken a line or sail
• Emergency Tiller : A backup steering system for a boat, typically used when the regular steering system fails
• Engineer : A crew member responsible for the maintenance and operation of the sailboat's engines and mechanical systems
• Entering A Port : This refers to the process of navigating a boat into a harbor or marina
• External Lead : This refers to the navigation method of determining the position of a boat by measuring the angle between two visible objects on shore or on buoys, using a lead line
• Eye Of The Wind : The direction from which the wind is blowing
• Eye-Splice : A way of creating a permanent loop in the end of a sailing rope

The sailing terms beginning with the letter F are:

• Fair Winds And Following Seas : This phrase is often used as a wish for good luck and smooth sailing
• Fairlead : A fitting through which ropes are led in order to change their direction or reduce friction
• Fathom : A unit of measurement for depth, equal to six feet
• Fender : A device placed between a boat and a dock or another boat to protect the boat from damage
• First Mate : The officer in charge of the deck crew, responsible for navigation and safety
• Foresail : A sail located at the front of a sailboat, also called jib
• Freeboard : The distance from the waterline to the deck of a boat
• Frigate : A type of ship, typically used for naval warfare or as a command ship for a fleet
• Furl : To roll or wrap a sail around a boom or mast in order to take it down
• Fetch : The distance over which a wind has blown without significant obstacle
• Front : The boundary between two different air masses, often associated with changes in temperature and precipitation

The sailing terms beginning with the letter G are:

• Gaff : A spar used to extend the upper edge of a fore-and-aft sail
• Gale : A strong wind with a speed of between 34-47 knots
• Geared Winch : A mechanical winch that is powered by gears and used to raise or lower a sail
• Genoa : A type of jib sail that is larger than a standard jib
• Give-Way Vessel : A vessel required to take action to avoid a collision with another vessel as per the international regulations for preventing collisions at sea (COLREGS)
• Godspeed : This phrase is used to wish someone a safe and successful journey
• Gunwale : The upper edge of the side of a boat
• Gybe : A maneuver in which a boat changes direction by turning its stern through the wind and causing the sail to change sides
• Gyroscopic Compass : A type of compass that uses a spinning wheel to provide stable and accurate heading information

The sailing terms beginning with the letter H are:

• Heading : The direction in which a boat is pointed, usually measured in degrees from true or magnetic north
• Heading Up : This refers to turning the bow of a sailboat towards the wind
• Heavy Weather : Severe weather conditions such as high winds, heavy seas, and storms
• Halyard : A rope or line used to hoist or lower a sail or flag. There is likely 1 halyard for each sail
• Hard Alee : An order to turn the bow of the boat as far as possible in the opposite direction of the wind
• Hatch : An opening in the deck of a boat, used for access to the interior or for ventilation
• Headstay : The cable or rod that supports the forestay, and holds the mast in the forward direction
• Helm : The helm of a sailboat is the steering mechanism of the boat, typically located at the back or the stern of the boat, and is used to control the direction of the boat. The helm is typically a wheel or tiller
• Helmsman : The person who steers the boat
• Helmsman's Seat : A seat located close to the helm, used by the helmsman to steer the boat
• Hiking : When a crew member moves out on the rail of the boat to counteract the heeling force of the wind and keep the boat level
• Hiking Strap : A strap used by a crew member to hold on to while hiking out on the rail of the boat
• Hurricane : A severe tropical storm with winds of 74 mph (119 km/h) or greater

The sailing terms beginning with the letter I are:

• International Regulations for Preventing Collisions At Sea (COLREGS) : A set of rules that govern the behavior of vessels on the water in order to prevent collisions
• Inboard : A motor or engine that is located inside the boat, as opposed to an outboard motor which is mounted outside the boat
• In Irons : A situation when a sailing vessel is stopped or hindered in its progression through the water because the wind is blowing directly onto the sail, preventing the vessel from moving forward
• Inhaul : A line or rope used to adjust the position of a sail
• Inshore : Close to the shore
• Inner Forestay : A rope or cable that supports the mast and holds the jib or genoa sail in place
• Iron Mike : This is a slang term for a sailboat's autopilot
• Irons : When a boat is stopped or hindered in its progression through the water because the wind is blowing directly onto the sail, preventing the vessel from moving forward
• Islands : Natural land formations that are surrounded by water

The sailing terms beginning with the letter J are:

• Jib : A triangular sail located at the front of a sailboat, also known as a foresail
• Jibe : A maneuver in which a boat changes direction by turning its stern through the wind and causing the sail to change sides
• Jib Sheet : A line used to control the angle of the jib sail
• Jumper Stay : An additional stay that supports the mast and is used to tension the headstay
• Jib Tack : The lower forward corner of a jib sail
• Jibing : Turning the boat so that the wind blows on the opposite side of the sail
• Jib Hanks : metal or plastic clips that hold the jib sail to the forestay
• Jib Furling : A system for rolling up a jib sail and securing it to the forestay when not in use

The sailing terms beginning with the letter K are:

• Keel : A long, heavy structural member that runs along the bottom of a boat's hull, providing stability and helping to keep the boat upright
• Knot : A unit of speed, equal to one nautical mile per hour
• Kedge : A small anchor used to hold a boat in a particular position or to move a boat by hauling it on a line
• King Plank : The centerline plank in the bottom of a boat that runs parallel to the keel
• Knees : Strong brackets that are used to support the deck and reinforce the hull-to-deck joint of a boat
• Knockdown : When a boat is hit by a large wave and it's knocked down on its side, causing water to flood the deck
• Kedge Anchor : a small anchor used as a temporary anchor to hold a boat in a particular position

The sailing terms beginning with the letter L are:

• Lazy Jacks : Lines or webbing that are used to guide the mainsail as it is lowered, making it easier to handle
• Leach : The back edge of a sail
• Lead Line : A line with a weight (lead) on the end, used to determine the depth of water beneath a boat
• Leeward : The direction away from the wind
• Luff : The leading edge of a sail, or the flapping or fluttering of a sail caused by wind coming from the wrong angle
• Luffing : When a sail is flapping or fluttering caused by wind coming from the wrong angle
• Lying Ahull : When a boat is allowed to drift without any sail set, used in heavy weather to prevent capsizing
• Life Jacket : A device worn by people on boats to keep them afloat in case of emergency, also known as a personal flotation device (PFD)
• Lifeline : A safety line that runs around the perimeter of a boat, used to prevent crew members from falling overboard
• Log : A device used to measure the speed of a boat through the water
• Long keel : A type of keel that extends the full length of the boat's hull, providing stability and helping to keep the boat upright

The sailing terms beginning with the letter M are:

• Mainsail : The largest sail on a sailboat, located at the back of the boat and controlled by the main sheet
• Main Sheet : A line used to control the angle of the mainsail
• Mast : The tall vertical spar that supports the sails of a boat
• Moor : To tie or anchor a boat in a specific location
• Mooring : A location where a boat can be tied or anchored
• Motor Sailor : A boat with both a sail and an engine propulsion
• Mainsail Halyard : A rope or line used to hoist the mainsail
• Mark : A buoy or other object used as a reference point for navigation
• Mariner's Compass : A type of compass that is used on boats and ships, typically featuring a magnetized needle that points towards magnetic north.
• Man Overboard (MOB) : A situation in which someone falls off a boat and into the water

The sailing terms beginning with the letter N are:

• Nautical Mile : A unit of measuring distance at sea that is used in navigation, equal to 1.85 kilometers
• Navigation Lights : lights required by international regulations to be displayed on boats in order to indicate the boat's position and direction of travel at night
• Navigation : The process of planning, tracking, and controlling the movement of a boat or ship
• Navigator : The officer responsible for charting the sailboat's course, using navigation instruments and maps
• Navigational Aids : Any device or system that helps a boat or ship navigate, such as buoys, lighthouses, and radar.
• Nautical Chart : A map specifically designed for navigation on the water, showing water depths, coastlines, navigational hazards, and other important information
• Natural Navigation : the traditional method of navigation using natural cues such as the stars, sun, moon, and the movement of ocean currents and waves
• Navigation Rules : A set of regulations that govern the movement of boats and ships in order to prevent collisions
• Navigation Software : Computer programs that assist in navigation by providing information such as navigation chart, water depth, weather forecasts and routes
• Navigation Lights : Lights that are required by international regulations to be displayed on boats and ships in order to indicate the vessel's position and direction of travel at night
• Navigational Sextant : An instrument used for measuring the angle between two visible objects, typically the horizon and a celestial body, used for navigation and determining a vessel's position at sea

The sailing terms beginning with the letter O are:

• Outboard : Also called outboard motor, an outboard refers to a motor or engine that is mounted outside the boat, as opposed to an inboard motor which is located inside the boat.
• Overboard : When something falls or is thrown off the boat into the water
• Offshore : Away from the shore
• Off The Wind : Sailing with the wind blowing from behind the boat.
• Outhaul : A line or rope used to adjust the position of a sail.
• Outrigger : An extension or framework that is attached to the side of a boat to increase stability.
• Overfall : A type of wave that forms when the wind and current are opposing, leading to steep, breaking waves.
• Overhead : The highest point in a boat, typically the top of the cabin or the coach roof
• Owner's Cabin : A room in a boat that is reserved for the owner, usually the largest and most comfortable cabin

The sailing terms beginning with the letter P are:

• Paddle : A tool used for propelling a boat through the water, typically consisting of a long shaft with a flat blade on one end
• Piling : A vertical structural member driven into the bottom of a body of water to support a dock or pier
• Porthole : A small window in the hull of a boat that provides light and ventilation to the interior
• Personal Flotation Device (PFD) : A device worn by people on boats to keep them afloat in case of emergency, also known as a life jacket
• Port : The left side of a boat when facing the bow (front)
• Pitch : The up-and-down movement of a boat caused by waves
• Planking : The process of covering a boat's hull with thin wooden planks
• Planking Seam : The joint between two adjacent planks on a boat's hull
• Point Of Sail : This is the direction you are going relative to the direction from where the wind is coming
• Propeller : A device that is attached to the bottom of a boat's hull, used to propel the boat through the water

The sailing terms beginning with the letter Q are:

• Quartering Sea : Waves that are coming from the side of a boat at a 45-degree angle
• Quarterdeck : The area of a sailboat located at the aft (rear) of the main deck, traditionally reserved for the ship's officers on larger boats
• Quartermaster : A crew member responsible for steering the sailboat, and also sometimes responsible for navigation. They are most commonly found on large sailboats and ships
• Quay : A man-made structure built alongside a body of water to provide a place for boats to tie up and load or unload cargo
• Quicksilver : An older term for Mercury, it was used to refer to a liquid in a barometer or thermometer
• Quartering : When a boat is sailing at an angle to the wind, with the wind blowing from the side
• Quartering Wind : A wind that is blowing on the side of the boat
• Quilting : A technique used to make a piece of clothing or sail that involves stitching together multiple layers of material
• Quoins : Blocks of wood or metal used to adjust the tension on a sail
• Quick Release : a device that allows you to quickly release a rope or line under load

The sailing terms beginning with the letter R are:

• Rudder : A flat underwater structure located at the stern of a boat. It is used to steer the boat
• Reef : To reduce the size of a sail by rolling or folding a portion of it and fastening it in place to reduce the sail's wind-catching surface
• Rope : a strong cord made of natural or synthetic fibers, used for a variety of purposes on a boat, including hoisting sails, tying up to a dock, and securing gear
• Running Lights : Lights that are required by international regulations to be displayed on boats and ships in order to indicate the vessel's position and direction of travel at night
• Rigging : The ropes, cables, and chains that are used to support the mast and control the sails of a boat
• Rode : The anchor line and chain used to secure a boat to the sea floor
• Rocker : The curvature of a boat's bottom from the centerline to the keel
• Roller Furling : A system for rolling up a sail and securing it to the mast or boom when not in use
• Roller Reefing : A method of reefing a sail in which the sail is rolled around a foil on the mast or boom
• Right Of Way : The responsibility of a vessel to give way to other vessels as per the international regulations for preventing collisions at sea (COLREGS)

The sailing terms beginning with the letter S are:

• Safe Harbor : A safe harbor is considered a symbol of good luck for sailors
• Sheet : A rope used to control the position of a sail
• Shroud : A rope or cable that runs from the mast to the side of the boat to provide support for the mast
• Starboard : The right side of the boat when facing forward
• Stern : The rear end of the boat
• Starboard Tack : Sailing with the wind coming from the right side of the boat
• Steward/Stewardess : A crew member responsible for the provisioning, cleaning, and maintenance of the sailboat's interior
• Spinnaker : A large, triangular sail used when sailing downwind
• Sail : A sheet of fabric that is attached to a mast and used to propel a boat through the wind
• Skipper : The person in charge of a sailboat
• Spar : A wooden or metal pole that supports a sail
• Shackle : A U-shaped metal fastener with a pin that is used to connect ropes or cables to the boat
• Scull : A method of steering a boat by using a oar or paddle at the stern of the boat
• Shrouds : A set of ropes or cables that run from the top of the mast to the sides of the boat to provide support for the mast
• Scuttlebutt : A nautical term for gossip or rumors
• Sea Room : The amount of space around a boat that is necessary to safely navigate
• Sea State : The condition of the surface of a body of water, often used to describe the roughness of the water during bad weather
• Sextant : An instrument used for navigation at sea, used to measure the angle between two visible objects, typically the horizon and a celestial object, in order to determine the ship's position
• Spinnaker : A spinnaker is a sail designed specifically for sailing off the wind on courses between a reach (wind at 90° to the course) to downwind (course in the same direction as the wind)
• Storm Sail : A sail that is designed for use in heavy weather
• Steering Compass : A compass mounted on or near the helm of a boat that is used to help the helmsman steer the boat
• Shipshape : A term used to describe a boat that is well-maintained and in good condition
• Squall : A sudden, strong wind often accompanied by rain or snow
• Swell : Large ocean waves that are caused by distant storms or winds

The sailing terms beginning with the letter T are:

• Tack : The direction in which a sailboat is moving
• Topsail : A sail set above the main sail on a ship's mast
• Tiller : A handle or lever used to steer a boat
• Trim : The adjustment of a sail's angle to the wind to optimize the boat's speed and direction
• Tacking : The act of turning a sailboat into the wind in order to change direction
• Tender : A small boat used to transport people or goods to and from a larger boat
• Tumblehome : The inward slope of a sailboat's sides above the waterline
• Topsides : The upper side of a ship's hull above the waterline
• Tugboat : A powerful boat used to tow or move other boats or ships
• Thwart : A seat that runs across a boat, typically used in a canoe or rowboat
• Tarpaulin : A heavy-duty waterproof sheet used to cover and protect equipment on a boat
• Telltale : A small flag or ribbon used to indicate the direction of the wind
• Topsheets : The sheets that control the uppermost sails of a square-rigged vessel
• Towing : The act of pulling a boat or ship behind another using a line or cable
• Toe Rail : A narrow rail along the edge of the deck used to prevent water from running onto the deck
• Trough : An elongated area of low pressure often associated with stormy weather
• Thunder Squall : A sudden, severe thunderstorm with high winds and heavy precipitation

The sailing terms beginning with the letter U are:

• Underway : Describes a boat that is not anchored or aground
• Upwind : Sailing towards the direction from which the wind is blowing
• Unfurl : To release and extend a sail from a furled position
• Uphaul : A rope or line used to raise a sail
• Underwater Gear : Equipment or gear used for activities under the water surface, such as diving gear or fishing gear
• Upstream : Against the direction of a current or flow
• Underbody : The bottom of a boat or ship's hull
• Underwater Lights : Lights used to illuminate the underwater area around a boat
• Underwater Soundings : Measurements taken to determine the depth of water beneath a boat
• Unstep : To remove a mast from a boat
• Unbend : To remove a sail from a boat or to remove a rope from a cleat or winch
• Unmoor : To release a boat from its moorings

The sailing terms beginning with the letter V are:

• Veer : To change the direction of the wind
• VHF Radio : A radio used for communication on boats and ships, operating on very high frequency
• Vang : A rope or lever used to control the angle of a sail
• Ventilator : A device used to allow air to flow into a boat
• Vane : A device used to determine wind direction
• Velocity : The speed at which a boat or ship is moving
• Valve : A device used to control the flow of fluids or gases
• VHF Antenna : A type of antenna that is used for VHF radios
• Velocimeter : An instrument used to measure the speed of a boat through the water.
• Visibility : The maximum distance at which an object can be seen
• Vent : A hole or opening on the sailboat that allows air or gases to escape

The sailing terms beginning with the letter W are:

• Wake : The trail of water left behind a sailboat as it moves
• Waterline : The line where the water meets the side of a boat or ship
• Windward : The direction from which the wind is blowing
• Watertight : Describes a boat that is designed to prevent water from entering
• Wharf : A platform or dock used for loading and unloading boats and ships
• Warps : Ropes or lines used to secure a boat or ship to a dock or buoy
• Windlass : A mechanical device used to raise or lower an anchor
• Watertight Bulkhead : A partition that is designed to prevent water from penetrating the interior of a boat or ship
• Watertight Door : A door that is designed to prevent water from penetrating the interior of a boat
• Whipping : A method of securing the end of a rope to prevent fraying
• Watertight Hatch : A hatch that is designed to prevent water from penetrating the interior of a boat or ship
• Waterspout : A type of tornado that forms over water
• Wench : A mechanical device used for hauling or lifting heavy loads on a boat

The sailing terms beginning with the letter X are:

• X-Yachts : A brand of luxury performance sailing yachts
• X-Bow : A type of bow design that features a sharp, vertical bow that is designed to reduce slamming in heavy seas

The sailing terms beginning with the letter Y are:

• Yard : A spar that extends horizontally from the mast of a sailboat, used to support and shape the sails
• Yaw : When a boat deviates from its course, typically caused by wind, waves, or steering issues

The sailing terms beginning with the letter Z are:

• Zephyr : A light breeze often used to refer to a gentle wind in sailing terms
• Zigzag : A course that changes direction frequently, often used to avoid obstacles or to make progress in difficult wind conditions
• Zone of Confidence : The area around a sailboat where the skipper is confident of his/her ability to handle the sailing vessel safely

Frequently Asked Questions About Sailing Terminology

Below are the most commonly asked questions about sailing terminology.

What Are The Most Popular Sailing Terms?

The most popular sailing terms are bow, port, stern, starboard, helm, keel, rigging, rudder, sails, deck, below deck, above deck, inboard, outboard, jib, anchor, skipper, aft, captain, rope, berths, knot, tack, mast, boom, mainsail, heading, furling, visibility, buoy, batten, main sheet, dock, offshore, inshore, nautical mile, man overboard, personal flotation device, reef, life jackets, hull and mooring.

What Are The Least Popular Sailing Terms?

The least popular sailing terms are iron mike, irons, toe rail, zephyr, scuttlebutt, rocker, luffing, shipshape, sea room, zigzag, quartering sea, beat, piling, and quilting.

What Are Sailing Terms For Wind?

Sailing terms for wind are windward, leeward, close-hauled, beam reach, running, tacking, jibing, true wind, apparent wind, fetch, and beaufort scale.

What Are Sailing Terms For Good Luck?

Sailing terms for good luck are bon voyage, all hands on deck, fair winds and following seas, godspeed and safe harbor.

What Are Sailing Terms For The Crew?

Sailing terms that pertain to the crew include captain, first mate, navigator, bosun, deckhand, quartermaster, able seamen, steward/stewardess, engineer and cook.

What Are Sailing Terms For Sails?

Sailing terms for sails are mainsail, jib, genoa, spinnaker, boom, halyard, sheet, clew, tack, reef, leach, and luff.

What Are Sailing Terms For Bad Weather & Storms?

Sailing terms for bad weather and storms are squall, gale, storm, hurricane, trough, front, sea state, swell, thunder squall and fetch.

What Are Sailing Terms For Beginners?

Sailing terms for beginners are hull, mast, sail, boom, rudder, keel, anchor, port, starboard, bow, captain, skipper, stern, deck, cabin, cleat and tack.

What Are Sailing Terms For Parts Of The Sailboat?

Sailing terms for parts of the sailboat are hull, mast, boom, rigging, standing rigging, running rigging, bow, stern, deck, cabin, bow pulpit, stern pulpit, gunwale, keel, rudder, tiller, winch, cleat, chocks and chain plates.

Basic Sailing Terminology: Sailboat Parts Explained

Sailing is a timeless activity that has captivated the hearts of adventurous souls for centuries. But, let’s face it, for beginners, sailing can be as intimidating as trying to navigate through a dark, labyrinthine maze with a blindfold on. The vast array of sailing terminology, sailboat parts and jargon can seem like a foreign language that only the most experienced seafarers can comprehend.

Fear not, intrepid sailor, for this comprehensive guide on basic sailing terminology for beginners will help you navigate the choppy waters of sailing jargon with ease. From learning the difference between the bow and stern to mastering the intricacies of sail trim, this article will equip you with all the knowledge you need to confidently take to the seas. So hoist the mainsail, batten down the hatches, and let’s set sail on this exciting journey of discovery!

Parts of a Sailboat

Before you can begin your sailing adventure, it’s important to familiarize yourself with the different parts of a sailboat. From the sleek bow to the sturdy keel, each component plays a vital role in keeping your vessel afloat and propelling you forward through the waves.

• Hull The main body of the boat that sits in the water and provides buoyancy and stability.
• Bow The front of the boat that meets the water and helps to determine its direction.
• Stern The rear of the boat where the rudder and motor are located.
• Deck The flat surface of the boat that you stand on, which can include various features such as seating, storage compartments, and hatches.
• Cockpit The recessed area of the deck where the skipper and crew sit or stand while sailing, which allows for easy access to the sail controls and provides protection from the wind and waves.
• Keel The long, fin-shaped structure beneath the waterline that helps to keep the boat stable and upright.
• Rudder The flat, vertical surface located at the stern of the boat that is used to steer and control the direction of the boat.
• Tiller or wheel The mechanism used to steer the boat, either in the form of a tiller (a handle attached to the rudder) or a wheel (similar to the steering wheel of a car).
• Mast The tall, vertical pole that supports the sails and allows you to catch the wind and move through the water.
• Boom The horizontal pole extending off the bottom of the mast that holds the bottom edge of the mainsail.
• Mainsail The large, triangular-shaped sail attached to the mast and boom that captures the wind’s power to propel the boat forward.
• Jib The smaller, triangular-shaped sail attached to the bow that helps to steer the boat and balance the force of the mainsail.
• Rigging The network of ropes and cables that hold the mast and sails in place and help control their movement.

Sail Terminology

Understanding the terminology associated with sails is critical to becoming a successful sailor. Here are 12 of the most important sail terms you should know, along with brief explanations for each:

• Luff The forward edge of a sail that is attached to the mast, allowing you to adjust the sail’s shape and angle to catch more wind.
• Leech The aft edge of a sail that is attached to the boom, which helps to control the sail’s shape and release the wind as needed.
• Foot The lower edge of a sail that is attached to the boom, which helps to control the sail’s shape and power.
• Head The top of a sail that is attached to the mast and controls the sail’s overall shape and angle.
• Battens The long, thin strips inserted into the pockets of a sail to help maintain its shape and stiffness.
• Clew The bottom corner of a sail that is attached to the boom or sheet, which helps to control the sail’s shape and power.
• Tack The bottom forward corner of a sail that is attached to the boat or a line, which helps to control the sail’s shape and power.
• Sail Area The total area of a sail, which is measured in square feet or meters.
• Sail Draft The curve or depth of a sail, which affects its performance and power.
• Sail Shape The overall form and contour of a sail, which is critical for catching the wind effectively.
• Reefing The process of reducing the sail area by partially lowering or folding the sail, which can be necessary in strong winds or heavy seas.
• Furling The process of rolling or folding a sail to reduce its size or stow it away, which is often used when entering or leaving port or in rough conditions.

Wind Direction and Sail Positioning

Understanding wind direction and sail positioning is crucial for successful sailing. Here are the key terms you need to know:

Types of Wind

• Apparent Wind The wind that is felt on the boat, which is a combination of the true wind and the wind generated by the boat’s movement.
• True Wind The actual direction and strength of the wind.

Points of Sail

You can find a detailed explanation of the points of sail here

• Close-Hauled Sailing as close to the wind as possible, with the sail set at a sharp angle to the boat.
• Beam Reach Sailing perpendicular to the wind, with the sail set at a right angle to the boat.
• Broad Reach Sailing with the wind at a diagonal angle behind the boat, with the sail angled away from the boat.
• Running Sailing directly downwind, with the sail on one side of the boat.

Other Terms

• Windward The side of the boat that is facing the wind.
• Leeward The side of the boat that is sheltered from the wind.
• Sail Trim Adjusting the sail and rigging to maximize the power and efficiency of the sailboat.

Navigation Terminology

Navigating a sailboat requires an understanding of a variety of nautical terms. Here are some of the most important terms you should know:

• Starboard Side The right side of a boat
• Port Side The left side of a boat
• Compass A device used for determining the boat’s heading or direction.
• Bearing The direction from the boat to a specific point on land or water.
• Chart A map or nautical publication that displays water depths, navigational aids, and other important information for safe navigation.
• Latitude The angular distance between the equator and a point on the earth’s surface, measured in degrees, minutes, and seconds.
• Longitude The angular distance between the prime meridian and a point on the earth’s surface, measured in degrees, minutes, and seconds.
• Course The direction in which the boat is traveling.
• Plotting The process of marking a course on a chart or map.
• Waypoint A specific point on a navigational chart or map that serves as a reference point for plotting a course.

• Tacking This maneuver involves turning the bow of the boat through the wind in order to change direction. To tack , the sailor will turn the helm towards the wind until the sails begin to luff, then quickly steer the boat in the opposite direction while adjusting the sails to catch the wind on the new tack.
• Jibing This maneuver is similar to tacking, but involves turning the stern of the boat through the wind. To jibe, the sailor will steer the boat downwind until the sails begin to luff, then quickly turn the stern of the boat in the opposite direction while adjusting the sails to catch the wind on the new tack.
• Heading up This maneuver involves turning the boat closer to the wind in order to sail upwind. To head up, the sailor will turn the helm towards the wind while simultaneously trimming the sails in to maintain speed and prevent the boat from stalling.
• Falling off This maneuver involves turning the boat away from the wind in order to sail downwind. To fall off, the sailor will steer the helm away from the wind while simultaneously easing the sails out to catch more wind and accelerate the boat.
• Docking This maneuver involves bringing the boat alongside a dock or other fixed object in order to moor or disembark. To dock, the sailor will typically approach the dock at a slow speed while using lines and fenders to control the boat’s position and prevent damage.

Knots and Lines

Learning the right knots and lines to use is essential for any sailor. Here are some of the most important knots and lines to know:

• Bowline This is a versatile knot used for many purposes, including attaching a line to a fixed object, such as a mooring or cleat.
• Square Knot A simple knot used to join two lines of the same diameter.
• Clove Hitch A quick and easy knot for attaching a line to a post or piling.
• Figure-Eight Knot A knot used to stop the end of a line from unraveling.
• Cleat Hitch A knot used to secure a line to a cleat.
• Sheet Bend A knot used to join two lines of different diameters.

• Main Halyard A line used to raise the mainsail.
• Jib Sheet A line used to control the angle of the jib.
• Mainsheet A line used to control the angle of the mainsail.
• Jib Furling Line A line used to furl the jib.

Sailing Safety

• Personal Flotation Devices (PFDs) These are the life jackets or vests that you must wear when on board to ensure your safety. Choose a PFD that fits you properly and is appropriate for your body weight.
• Tethers and Harnesses These are designed to keep you attached to the boat and prevent you from falling overboard. Make sure to clip yourself onto the boat when you’re on deck or going up to the mast.
• Man Overboard ( MOB ) Drill This is a critical safety procedure to practice with your crew. Learn how to quickly identify and recover someone who has fallen overboard.
• Emergency Position Indicating Radio Beacon (EPIRB) An EPIRB sends a distress signal and your location to rescue services in an emergency. Make sure it’s properly registered and in good working condition.
• Navigational Lights Ensure your boat has the required navigational lights and know how to use them properly. These lights help other boats see you in low-light conditions.

Remember that safety is always the top priority when sailing, and it’s essential to take it seriously.

Sailing Terminology Conclusion

As we come to the end of our sailing terminology crash course, it’s important to remember that the world of sailing is vast and varied. Learning even the basics can be a daunting task, but with practice and perseverance, you’ll be able to hoist your sails and set a course for adventure.

Whether you’re a seasoned sailor or just starting out, understanding the terminology is crucial to ensure a safe and enjoyable voyage. From the parts of the boat to the knots and lines, each aspect plays a significant role in the overall sailing experience.

So, as you prepare to embark on your next sailing adventure, keep in mind the importance of safety, navigation, and proper etiquette on the water. And remember, when all else fails, just hoist the Jolly Roger and hope for the best! (Just kidding, don’t actually do that.) Happy sailing!

What is the difference between apparent wind and true wind?

Apparent wind is the wind felt by the sailor on the boat, while true wind is the wind direction and speed relative to the ground.

What are the points of sail?

The points of sail are the directions that a sailboat can travel in relation to the wind. They include upwind, close-hauled, beam reach, broad reach, and downwind.

What does it mean to be “on a reach”?

Being “on a reach” means sailing with the wind coming from the side of the boat, at a perpendicular angle to the boat’s direction.

What is tacking?

Tacking is the maneuver used to turn the boat’s bow through the wind, allowing the boat to change direction while still sailing upwind.

What is jibing?

Jibing is the maneuver used to turn the boat’s stern through the wind, allowing the boat to change direction while sailing downwind.

What is the difference between windward and leeward?

Windward is the side of the boat that is facing into the wind, while leeward is the side of the boat that is sheltered from the wind.

What is a boom vang?

A boom vang is a line used to control the position of the boom, which helps control the shape and position of the sail.

What is a cleat?

A cleat is a device used to secure a line to the boat, allowing the sailor to adjust the tension of the line without having to hold onto it constantly.

What is a winch?

A winch is a mechanical device used to control lines and adjust sails. It typically consists of a drum and handle that can be turned to wind or unwind a line.

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150+ Nautical Terms: Illustrated Guide

Sailing and nautical terms have been refined over centuries, forming a unique glossary that can leave even the most seasoned wordsmiths scratching their heads.

Today, we’ll look at the terminology of words and names used at sea to help you through even the saltiest conversations.

Terms for the components a sailboat consists of

Let’s start with terms for the parts a sailboat is put together from. These refer to each component and explain what they are.

The main parts

Mast : The mast is the big, tall spar that holds up the sails! Some boats have more than one mast.

Mainsail:   The mainsail is the sail behind the mast and on top of the boom. Often just referred to as “the main.”

Boom:  The spar that sticks out behind the mast.

Rudder:  The rudder is also a fin sticking down under the boat but is located back towards the stern and connected to the wheel or tiller, enabling you to steer the vessel.

Headsail:  The sail(s) in front of the mast. Many boats have more than one headsail and can be of different sizes and shapes.

Spreader:  The fins or wings that space the shrouds out from the mast.

Hull:  This is the body or structure of the boat. Monohulls have one hull, catamarans have two hulls, and trimarans have three hulls – you get the point.

Keel : This is the heavy fin sticking down under the middle of the boat, allowing it to sail. There are many different keel designs, but they are all heavy, and their job is to keep the vessel stable and track through the water under sail.

Helm: This is the position where you steer the boat. Usually, this is a wheel, but it can also be a tiller on many vessels.

Cockpit: The cockpit is the boat’s steering position and where you will find the helm.

Transom: The flat surface across the stern of the boat.

Bow and Stern: The bow is the front part of a boat, while the stern is the rear end. 

Midship:  By some called amidships – The center of the boat.

Beam: The widest part of the boat. It is also referred to as the sides on the middle of the vessel.

Waterline: This is the part where the hull (body) of the boat meets the water. Many ships have a painted stripe to mark the waterline, indicating the boat’s load. If you have too much stuff on board, the waterline goes underwater, and it is time to do some housekeeping!

Freeboard: The vertical part of the ship side between the water and the deck.

Deck: The deck is the “floor” of the boat when you are outside. You have probably heard the term “All hands on deck!”

Spar: The general term for a pole made of a solid material like wood or metal used to support a boat’s sail. The mast, boom, spreaders, etc., are defined as spars.

Gooseneck:  This fitting connects the boom to the mast and allows it to move horizontally and vertically.

You can read more about the different parts of a sailboat in this article.

The standing rigging which holds the sails

Forestay:  The forestay   is a wire that runs from the bow to the top of the mast. Some boats, like the Cutter rig, can have several additional inner forestays in different configurations.

Furling system:  Most sailboats have their headsail on a furling system, a tube running along the forestay from the bottom furler drum to the masthead swivel. 

Backstay/Aft stay:  The wire that runs from the aft of the boat up to the top of the mast.

Shrouds:  On most common cruising boats, there are usually four shrouds on each side to support the mast from sideways motion. The shrouds are generally made of wire but can also be rods or Dyneema lines. The  cap shrouds  run from the masthead through the tips of the spreaders down to the deck. The  intermediate shrouds  run from the lower part of the mast, through the lower spreaders, and to the deck. The  lower shrouds  run from the mast under the lower spreaders down to the deck – one forward and one aft on both sides. This is called  continuous rigging .

Turnbuckle:  The fitting that connects the shrouds to the  chainplate  on the deck. These are adjustable, allowing tensioning of the rig.

Chainplate:  A fixed strong point bolted on the deck. Usually reinforced with a backing plate underneath. 

You can read more about the standing rigging in this article .

The running rigging which operates the sails

Line:  The running rigging on a sailboat often consists of lines, a type of rope with a smooth surface that works well when used on a winch. 

Halyard:  This is the line you use to hoist and lower the sail. 

Sheets:  The sheet is the line you use to  control a sail . The  mainsheet  controls the angle of the mainsail and is attached between the boom and the  mainsheet   traveler . The two headsail sheets are connected to the sail’s clew (lower aft corner) and run back to each side of the cockpit.

Outhaul:  The outhaul is attached to the clew of the mainsail and used to adjust the foot tension. 

Topping lift:  A line attached to the boom’s end runs through the masthead and down to the deck or cockpit. Used to lift and hold the boom and also function as a spare main halyard.

Downhaul:  A line used to lower with. Typically used to lower the mainsail when reefing and lowering the spinnaker and whisker poles.

Reef line:  Depending on your setup, these lines are used to reduce the sail area of the mainsail.

Shaking a reef: When we sail with a reefed sail and want to increase the sail area back to full, we call it shaking the reef.

Equipment used to operate the running rigging

Block:  A pulley with a sheave wheel. These are used to change the direction of a pull on a line or rope and give a mechanical advantage. 

Mainsheet Traveler:  The traveler is a horizontal track attached to the mainsheet through a series of blocks. The traveler enables you to adjust the boom from side to side or lock it at an angle.

Cars:  The cars are pulleys or blocks attached to a track on the side decks that your headsail sheets run through. They are used to control the angle of the sheet between the clew and the deck. 

Jammer:  The jammer is used to lock a line in place. Most sailboats use these for locking the halyards, mainsheet, outhaul, reef lines, traveler lines, boom vang lines, etc. 

Spinnaker Pole:  A spar used to wing out a headsail when sailing off the wind, particularly the Spinnaker. 

Whisker Pole:  Similar to the spinnaker pole, but typically built lighter and attached to a track on the mast. These can be found in fixed lengths or adjustable lengths. 

Boom Vang/Rod Kicker:  A compression pole is used to tension the boom downwards. 

You can read more about the running rigging in this article.

Deck gear and hardware

In-mast furling:  A furling system that furls the mainsail in and out of the mast as opposed to the traditional way where the mainsail is secured to the boom and is hoisted and lowered on a track behind the mast.

In-boom furling:  A furling system that furls the mainsail in and out of the boom. 

Stack Pack:  Also called  Lazy Bag or Lazy Pack . A bag with a zip attached to the boom where the mainsail is stored when unused.

Lazy Jacks:  A set of lines running from the stack pack to the mast guides the mainsail up and down from the Stack Pack and prevents it from falling on the deck. 

Masthead:  Not to be confused with the term masthead rigging. Out of context, the masthead is the top of the mast.

Winch:  A metal drum that gives you a mechanical advantage when tightening lines.

Sprayhood:  The windshield of the boat that protects the people in the cockpit from sea spray. Some ships have canvas spray hoods that can be folded down or removed. Others have solid sprayhoods, often called a  hard dodger  or a  doghouse .

Bimini:  The cockpit’s roof protects you from the elements and provides shelter from spray, rain, and burning sun rays! A bimini can be made of canvas or hard material. The hard bimini is usually called a  hardtop .

Outboard:  Short-term for an outboard engine, which usually belongs to the dinghy.

Cruisers:  What we sailors often call ourselves. Especially those of us living onboard. Although salty, we are definitely handy to have on board as we are also electricians, mechanics, plumbers, and you name it.

Fenders:  Like Captain Ron said in the movie, the rubber bumper things you hang off the side of your boat to prevent it from scratching against something like the key side or another boat. Conveniently also used to sit on or as a backrest while relaxing on the deck.

Boat Hook:  A long stick with a hook at the end. Used to grab lines, items, and stuff that is too far to reach by hand, like cushions flying overboard. It is also convenient as a tool to push the boat away from another ship or the key. Or to push mud or clay off the anchor . Or catch a wild flying halyard. Most vessels have them on board, and you want one or two. (They tend to get lost at sea).

Guard Rail:  This can be a flexible wire or a solid metal rail surrounding the boat to prevent us from falling overboard. Some also use a net as an addition for increased safety.

Pushpit:  The metal guard rail around the stern of the boat. This is where the guard rail is secured on the stern. A common place to mount the BBQ, life raft, and the outboard for the dinghy. 

Pulpit:  The metal guardrail on the bow. This is where the guard rail is secured onto the bow.

Stanchion:  The metal bar that keeps the guard rail in place around the boat between the pushpit and the pulpit.

Arch:  A big structure usually made of stainless steel on the back of a boat. Often used to mount a variety of items like antennas, radars, solar panels, wind generators, etc.

Ground Tackle:  This consists of your  anchor , your anchor  chain,  the link between the two, and the connection between the chain and your boat. The ground tackle is basically the system that holds your boat to the ground.

Windlass:  The winch that hoists or lowers the anchor and chain. Most boats have one on the bow, and some have one on the stern, too. These incredible things can be electrical or manual (some are both) and are essential to anchor your boat when not in a port or marina. Try to haul the anchor manually once – you’ll put a windlass on the top of your wish list pretty quickly…

VHF   Radio:  Very High-Frequency Radio that broadcasts on the VHF network and makes you able to communicate with others around you. Sadly, you won’t be able to tune in to your favorite radio show on these. Still, they are invaluable at sea for communication.

Chart Plotter:  A navigation computer that shows various information on a screen, like charts, routes, radar images, etc.

Parts below the decks

Companionway:  The “front door” of the boat. This is where the steps lead from the cockpit or deck down below. It is usually opened and closed using a hatch, two doors, or a plate.

Galley:  The kitchen of a boat is never to be called a kitchen. Always use the term galley when you are onboard!

Saloon:  This is the boat’s living room and usually where you find the settee and dinette.

Settee:  The couch in a ship.

Dinette:  This is the area where you can sit down at a table and eat your dinner. It’s also perfect for consuming rum in good company and a game of cards.

Cabin:  These are the “rooms” onboard but might not necessarily be the “bedrooms.”

Head:  There are no bathrooms on a boat, only heads. If your skipper tells you to go and clean the head, getting out the shampoo won’t do you any good.

Nav station:  Usually a chart table and a console with mysterious instruments like radios, chart plotters, radar screens, and all sorts of complicated electronics. This is often where adventures are planned and the skipper’s favorite seat onboard. (At least, that is my favorite and where all this content is created!).

Bilge:  The space in the bottom of the hull where water collects and sometimes a storage space for all sorts of things. It usually contains a  bilge pump  to pump out water that finds its way into the boat in various places. You may have heard the phrase: “Treasures of the bilge.” Now you get it!

Berth:  A place in the boat where you can sleep. This doesn’t necessarily have to be a bed and can often include the sleeping space in the salon. The term  sea-berth  usually refers to a sleeping position where you are tucked well in and can sleep when the boat is heeling over and moving around.

V-berth:  The bed in the front cabin is shaped like a V.

Bulkhead:  A wall inside the boat, usually supporting the structure.

Terms used for directions and navigation

Port and Starboard : Port refers to the left side of the boat when facing the bow (front), while starboard signifies the right side. 

Windward and Leeward : The windward side refers to the side of a boat facing the wind, while the leeward side is the side sheltered from the wind. These sailing terms also apply to geographic features, like islands or coastlines, that offer protection from the wind.

Chart : A nautical chart is a map specifically designed for marine navigation, depicting water depths, shoreline features, navigational aids, and potential hazards.

Compass : A compass is an essential navigational instrument that indicates magnetic north, allowing sailors to determine their heading and steer their vessels accordingly.

Course : The course is a vessel’s intended direction of travel, expressed in degrees from true or magnetic north.

Heading : The heading is the actual direction a vessel points, also expressed in degrees from true or magnetic north.

Latitude : Latitude is a geographic coordinate that specifies a location’s distance north or south of the equator, measured in degrees, minutes, and seconds.

Longitude : Longitude is a geographic coordinate that specifies a location’s distance east or west of the Prime Meridian, measured in degrees, minutes, and seconds.

Waypoint : A waypoint is a specific location, defined by its latitude and longitude, that serves as a reference point for navigation.

Bearing:   The angle between the observer’s position and a distant object, measured in degrees from true or magnetic north.

Fix : A fix precisely determines a vessel’s position using various navigational methods, such as bearings, GPS, or visual landmarks.

Dead Reckoning : Dead reckoning is a method of estimating a vessel’s current position based on its previous position, speed, and course over time.

Tide : Tides are the regular rise and fall of sea levels caused by the gravitational forces exerted by the Moon and Sun. 

Current : Current refers to the horizontal movement of water in a particular direction. Currents can significantly affect a vessel’s speed and course, so make sure to consider them when sailing and navigating.

Buoy: A buoy is a floating device anchored in a body of water, such as an ocean, sea, lake, or river, to serve various purposes, including navigation, marking channels, identifying hazards, or indicating mooring locations.

The names of different sails and their parts

Mainsail:  The mainsail is the sail behind the mast and on top of the boom. 

Genoa :  A Genoa is a headsail that extends past the mast and overlaps the mainsail. 

Jib :  A Jib is a headsail that does not overlap the mainsail. 

Staysail:  A staysail is usually found on cutter rigs and is the sail set on the inner forestay.

Yankee:  A yankee headsail is used similarly to a Genoa or Jib but has a high-cut clew and is often used on cutter-rigged boats together with a staysail.

Mizzen sail:  A mizzen sail is typically a small triangular sail set on the aft mast of a boat with several masts, like the ketch rig.

Storm sail:  A storm sail is a small, strong sail to be used in heavy weather conditions where the headsail is furled to the point where its shape doesn’t give you drive anymore or/and when you want a smaller mainsail than your reefing setup allows you. The storm sails provide stability in the vessel in heavy weather sailing.

Spinnaker:  A Spinnaker is a symmetric light wind sail used to sail off the wind at deep angles between 120 and 180 degrees.

Gennaker:  A Gennaker is a cross between the Genoa and Spinnaker. It has the same type of light fabric as the Spinnaker but is asymmetrical like a Genoa with a tack set on the bow and a sheet led back from the clew to the stern of the boat.

Code Zero:  A code zero sail is a cross between a Genoa and a Gennaker. It is also designed for light wind with its lightweight fabric but has a different shape than a Gennaker. This makes it able to be used while sailing upwind, unlike the Gennaker.

Parasailor:  A parasailor is similar to a spinnaker but with some differences. It has a double-layer wing that inflates as the sail gets filled with air. This wing works like a batten and keeps the leech out while generating lift on the bow, making it effective between 70 degrees and all the way down to 180 degrees dead downwind.

The different parts of a sail

Tack:  The tack of the sail is the lower forward corner.

Clew:  The clew of a sail is the lower aft corner.

Head:  The top corner of a sail. 

Foot:  The foot of the sail is logically the bottom part of the sail between the clew and the tack.

Luff:  The luff is the front edge of the sail between the tack and head.

Leech:  The leech is the aft part of the sail between the clew and head. 

Telltales:  Telltales are small ropes, bands, or flags attached to the sail to give you an indication of the airflow around your sail. 

Battens:  Battens are slates or tubes inserted in pockets on the mainsail to help it keep its shape better and increase its lifespan.

Learn more about the different types of sails in this guide . 

Terms used when we talk about wind and weather

Gust : A gust is a sudden, brief increase in wind speed, often accompanied by a change in direction.

Squall : A squall is a sudden, strong wind that typically lasts for a short period and is often associated with rapidly changing weather conditions, such as thunderstorms or cold fronts.

Barometer : A barometer is an instrument used to measure atmospheric pressure. Changes in atmospheric pressure can indicate upcoming weather changes.

High-Pressure System : A high-pressure system is an area of relatively high atmospheric pressure, characterized by sinking air and typically associated with calm, clear weather.

Low-Pressure System : A low-pressure system is an area of relatively low atmospheric pressure, characterized by rising air and typically associated with clouds, precipitation, and potentially stormy conditions. Sailors usually refer to these systems as a “low.”

Front : A front is a boundary separating two air masses of different temperatures and humidity levels. Fronts are associated with changes in weather conditions and can cause sudden wind shifts and varying wind strengths.

True Wind Speed, or TWS: The actual wind speed affecting you at a point when you are standing still.

True Wind Direction, or TWD: The direction the wind is blowing from.

True Wind Angle, or TWA: The angle between your boat’s heading and wind direction.

Apparent Wind Speed, or AWS: The wind affecting the boat while in motion.

Apparent Wind Direction, or AWD: The direction of the wind in relation to your boat underway.

AWA  –  Apparent Wind Angle: The angle to wind while you are underway

Beaufort Scale : The Beaufort Scale is a system used to measure wind speed, ranging from 0 (calm) to 12 (hurricane). You can learn more about it at MetOffice here .

Saffir Simpson Hurricane Wind Scale: A scale describing hurricane wind speeds in categories from 1 to 5.

Learn more about the difference between actual and apparent wind in this guide .

Terms we use when cruising at speed under sail

Port Tack:  When the wind blows on the port side of your sails

Starboard Tack:  When the wind blows on the starboard side of your sails

Tacking: When you steer the boat from a starboard tack to a port tack and vice versa  upwind .

Gybing:  When you steer the vessel from a starboard tack to a port tack and vice versa  downwind .

Heeling : When the wind fills the sails and leans the boat over to the side.

NM:  Nautical Miles

Kt:  Knots – A measurement of speed used on boats.

Deg: Short for degrees

SOG: Speed over Ground, usually measured by GPS

SOW:  Speed over Water, usually measured by the boat’s speed log transducer.

COG:  Course Over Ground, the direction your boat is  moving  towards.

HDG:  Heading, the direction your boat is  pointing  towards.

Boom preventer:  A line or rope tied to the end of the boom and led forward of the mast to prevent it from swinging over when sailing off the wind.

Overpowered:  When wind overpowers the boats’ ability to steer a straight course. This typically happens when you try to sail above your boat’s hull speed, carrying too much sail area in relation to the wind, or your sails are poorly trimmed.

Hull Speed: The speed your boat has achieved when its created wave has the same length as the hull’s water length. Many displacement sailboats (the ones that don’t plane on top of the water) get hard to steer when going faster than this. You can learn more about how to calculate your hull speed in this guide: https://sailingellidah.com/average-distance-sailed-in-a-day/

Pro Tip:  Your COG and HDG will sometimes differ due to wind and current pushing you sideways.

Terms for the boats heading in relation to the wind

These sailing terms are best known as our points of sail and describe the vessel’s heading in relation to the wind:

Close Hauled:  When sailing close-hauled, the vessel’s heading is as close to the wind as possible, typically between 35-50 degrees.

Close Reach:  When sailing at an angle between 50 and 80 degrees, give or take.

Beam Reach:  The wind comes in from the side.

Broad Reach:  When bearing away from 90 degrees to around 135 degrees.

Running:  When sailing downwind.

You can learn more about the 5 points of sails in this guide : 

Final Words

I know there are a lot of nautical words and terms to keep track of, but luckily, no one expects you to know them all right away. You’ve probably already taken note of the most important ones, which means you’ve taken a giant leap in the right direction. Keep at it; you’ll speak like the saltiest seadog before you know it.

Did I forget to mention any terms you know of? Let me know in a comment below!

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Skipper, Electrician and ROV Pilot

Robin is the founder and owner of Sailing Ellidah and has been living on his sailboat since 2019. He is currently on a journey to sail around the world and is passionate about writing his story and helpful content to inspire others who share his interest in sailing.

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Glossary of sailing and nautical terms

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In order to become a true sailor, you’ll first need to learn some essential sailing terms. Luckily, we’ve got you covered! In this A-Z of yachting terms, we’ll briefly explain yacht terms, parts, equipment, sailing commands, and even some pirate jargon.

For you to understand the ins and outs of a boat you should know where it starts and where it ends. The front of a boat is known as the bow while the back is called the stern. Also, while the left of the boat is called the port side, the right is called starboard. Now that you’re familiar with the different sides of a boat, let's get down to real sailing business. 

• ABANDON SHIP! – You have probably heard this in movies and you know it doesn't bring any good. You should leave the vessel immediately as it looks like your ship is in some imminent danger.
• ABOARD – When you’re aboard, you are on a boat. The opposite of ashore. 
• ABOVE DECK – Above deck means you are standing on the deck, not above it.
• ABREAST – We call vessels that are side to side - abreast.
• ADRIFT – Don't panic but if your vessel is adrift it means it has sailed off without you. Okay, you can panic a little.
• AGROUND – If the water is not deep enough, then you go aground and your vessel’s bottom touches the ground.
• AHEAD – This means something is in front of the boat, for example your destination is ahead.
• AHOY – Another way to say hello, with a little pirate tone.
• ALL HANDS HOAY – Everyone should get on the deck. 
• AMIDSHIPS – The middle of a vessel, whether from her length or width. 
• ANCHOR – A chain with a hook on the end that falls to the bottom of the sea and prevents your yacht from sailing off without you. Used for parking your yacht in a bay.
• ANCHORAGE – A great spot for holding, anchoring and sheltering your vessel.
• APPARENT WIND – A mixture of the true wind direction and the wind created by the sails.
• ASHORE – Being on the shore, and not on your vessel. 
• ASTERN – Opposite of ahead is astern, in other words behind. 
• AYE, AYE – A reply to a command to show that it will be carried out.
• BAGGYWRINKLE – A soft covering for cables that prevents friction between sails.
• BAREBOAT – Sailing a yacht on your own without a crew or skipper. 
• BATTEN DOWN – If you hear “Batten down the hatches!” make sure you secure any hatchets and loose objects so you don’t lose anything important.
• BEAM – The width of your vessel.
• BEARING – Bearing is the direction in which we are headed. The reference point can be a compass or the heading direction.
• BELOW – Instead of being “above deck,” you can also be “below” it.
• BERTHS (Sleeping) – The number of people able to sleep on a specified vessel.
• BERTHS (Mooring) – The location in a harbour or port for mooring a vessel
• BEAM REACH – Is the position of a sail when the true wind hits it at a 90 degree angle.
• BILGE – The deepest part of the vessel’s hull, where water can enter.
• BOAT HOOK – A pole with a hook on the end. You can use it to grab and pick up a rope, collect something that has fallen overboard, or push the vessel off the port.
• BOOM – This is the horizontal pole that runs along the bottom of the sail. A part that often hits unsuspecting victims on the head in small vessels. Not a very pleasant experience.
• BOW –The front of the vessel also known as the ”pointy end” of the boat. 
• BOW LINE – A rope that’s tied onto the front of the vessel that stops the vessel from moving sideways when moored.
• BOWLINE – To confuse you, this is a completely different from the bow line. It’s pronounced “boh-lin” and it’s a knot which creates a loop at the end of a rope.
• BRIDGE – The part of the vessel from where you steer and control the speed.
• BRIGHTWORK – Brightwork is the shining woodwork or polished metal that you can see on a vessel.
• BUOY – A buoy is a floating device that marks a position, a hazard, or shallow sea. Some are also used to moor vessels.
• BROAD REACH - Sailing downwind with the wind is hitting the sails at an angle between 91 and 170 degrees. 
• CABIN – Separated living units, like a bedroom.
• CAPSIZE  – When a vessel leans too far causing it to flip over. This can result in the sinking of the ship. 
• CAST OFF – When you cast off you let go of a rope from where your vessel has been moored up.
• CHAFING GEAR – It sounds quite uncomfortable, but it's not for you. “Chafing gear” is a tube or some type of fabric that you wrap around a rope to stop it from rubbing on a rough surface.
• CHART – A nautical map that gets you from point A to point B.
• CLEAT – A fitting on vessels used to tie or secure ropes. 
• COCKPIT – An opening from where you can control the vessel.
• COIL – When it’s time to put away ropes, you make a neat, circular coil with them.
• COMPASS  – A navigational instrument that revolutionised travel.
• COURSE – The route you follow across the water.
• CURRENT – The current is actually the movement of water, usually caused by tides or wind.
• DEAD AHEAD – Dead ahead means straight ahead.
• DEAD ASTERN – Meaning behind you. The complete opposite of dead ahead.
• DECK – Not the deck of playing cards. This is a surface that covers any part of a vessel on which you can walk on.
• DINGHY – A small inflatable boat attached to the yacht. It is sometimes easier to go with the dinghy. 
• DOCK – A pier, float or a wharf where you can moor your vessel.
• DRAFT/DRAUGHT – It can mean two things, the depth of a vessel underwater or the fullness of a sail.
• DUNSEL –  This part has no use on a ship. Don't be a dunsel! 
• EASE – To let the sails out.
• FATHOM – In sailing, a fathom is a nautical unit of length. It matches six feet or approximately two metres.
• FENDER – The colourful cushions that hang over the edge of a vessel to prevent damage to the boat or pontoon.
• FLOOD – This doesn't have to be super dramatic, it can simply be used to describe an incoming tide.
• FORE-AND-AFT – A centre-line of a vessel that runs lengthwise, parallel to the part of the hull that goes deeper into the water below it. 
• FOREPEAK – An open area in the front front of the vessel.
• FOULED – A fouled piece of equipment is blocked, tangled, or tarnished.
• GALLEY – A vessel’s kitchen. Go on, we know you’re hungry.
• GANGWAY – The gangway is where you can get in and out of the vessel.
• GEAR – When you hear “Get your gear!” it means ropes, lines, blocks, and other equipment on board.
• GENOA/JENNY – Might be quite confusing if your name is Jenny. A Genoa or Jenny is a sail that overlaps the mainsail.
• GRAB RAILS – When in danger of falling off the boat, it’s a good idea to hold onto the grab rails to prevent that. 
• GROUND TACKLE – The bits that touch the ground such as the anchor and its gear.
• GUNWALE – The rail that goes around the edge of the deck. 
• HALYARD –  All the ropes used to pull sails up.
• HATCH – An opening in the vessel’s deck that has a water-resistant cover.
• HEADING – The direction the vessel is going in.
• HEADWAY – A headway vessel is going forward, while the sternway is moving backward.
• HEADS – The heads are actually the toilets, the loo, dunny… It can also be the upper corner of a triangular sail.
• HELM – If somebody asks you to take the helm, drop everything you are doing and take the wheel. The helm is the wheel or tiller that controls the vessel.
• HELMSPERSON – The best and the worst job on board. The person steering the wheel.
• HOLD – The inside of the yacht’s hull.
• HULL – The main body of a vessel, the part that floats.
• INBOARD – Simply inside the vessel’s edges.
• IN IRONS – When the boat is difficult to manoeuvre under sail.
• IRON MIKE – A slang for auto-pilot. Not a famous boxer.
• ITINERARY – The route of travel on your holiday. Usually planned in advance but needs to remain flexible to respond to weather conditions and personal preference
• JACOB’S LADDER – The type of rope ladder that you’d use to climb up something. It can be lowered from the deck when passengers come on board. 
• JETTY – A jetty is a structure made to create breakwater, shelter, erosion control, or a channel. 
• JIBING/GYBING – On a vessel, jibing means turning away from the wind until the wind comes from the other side.
• KEEL – The central structural base of the hull, the “backbone” of a vessel.
• KNOT – Not just a loop you tie in a rope or string, but also a unit of speed (equals one nautical mile an hour)

• LATITUDE – Geography knowledge can be used here. The latitude is the distance north or south of the equator. It’s measured in degrees and up to 90˚ north and 90˚ south. Each degree of latitude accounts for 60 nautical miles.
• LAZARETTE – A storage space at the back of the vessel.
• LAZYJACK – Wires leading from the mast (the big central metal pole) to the boom (pole that runs along the bottom of the front partl) that helps lowering the sails.
• LEE – The down-wind side of a vessel or shore which is sheltered.
• LEE CLOTHS – To avoid falling out of bed in the middle of the night, you can use a lee-cloth to keep you safe.
• LEEWARD – This is the direction away from the wind, as opposed to windward, which means into the wind.
• LOA – The maximum length of a yacht including overhanging ends that extend beyond the main bow and main stern.
• LOG – The log measures speed and records the vessel’s course.
• LONGITUDE – This is the distance east or west of the meridian line at Greenwich, UK, which is measured in degrees. There are 180˚ west and 180˚ east of Greenwich.
• LINE – This is a general term for a rope or line on a vessel that has a control function.
• LWL – Load waterline length or the length of a yacht that is in contact with the water.
• MAINSAIL – The main sail that sits behind the main mast on a yacht.
• MAST –The big metal pole that reaches from the bottom of the yacht to the sky. The sails hang from the mast.
• MED MOORING – The art of reverse parking a yacht into a small gap, a typical mooring technique in most Mediterranean harbours.
• MIDSHIP – The middle of the vessel. 
• MONOHULL – A boat with one hull. The classic sailor’s yacht
• MOORING – When you moor a vessel, you tie it to a buoy or a pier. And then hope it won’t go adrift.
• NAUTICAL MILE – A measure of distance when on water. It’s around 6,076 feet, 1,852 metres, 2,025 yards, or one minute of latitude. 
• NAVIGATION – Keeping to the route of a vessel when on a voyage from point A to point B.  Basically, figuring out where you are and where you are going. 
• OCEAN – Don’t think this one needs explaining, but anyhow a huge blue surface, pretty wet too.
• OPERATIONAL LANGUAGE – The language that the crew use to give instructions. 
• OUTBOARD – When something is outboard, it’s beyond the vessel’s sides.
• OVERBOARD – It’s probably best to avoid this one. When someone or something is overboard, it’s over the side of the boat.
• PIER – A pier is a loading platform held by posts that extends out from the shore.
• PILOTAGE – Piloting when you navigate using visible features on land or water.
• PORT – The left side of the vessel is called the port side. It is also another name for a harbour.
• PROW –A poetical alternative term for bow.
• QUAY – A stone or metal platform lying alongside or above the water. Usually used for parking, loading and unloading vessels.
• REACHING – For most sailboats, this is the fastest way to travel. A close reach is toward the wind, and a broad reach is slightly away from the wind.
• REEFING – The preferred method of reducing sail area so it is easier to control. Especially useful in higher winds and bad weather conditions. 
• REGATTA – A series of boat races.
• RIGGING – The ropes and wires that control the sails and support the masts.
• RIP RAP – A pile of rocks and rubble made to form a breakwater, often surrounding an off-shore lighthouse or vulnerable harbour. 
• RUDDER – When you change directions on the vessel, it moves the rudder which in turn steers the vessel. It’s usually a vertical plate or a board connected to the back.
• SAILS – The most important part for sailing. An eco-friendly engine that converts wind power into boat speed. 
• SALOON – The living area, you go here to relax.
• SATELLITE NAVIGATION – You have probably used regular navigation that uses radio transmissions before. However, the equipment on a vessel is a bit more complex and sophisticated.
• SCUPPERS – Scuppers are the holes in the deck that let the water drain off. 
• SEA COCK – A sea cock is a faucet in the hull that can be turned off when not in use.
• SEAMANSHIP – All the skills of boat handling can be called seamanship. It could be maintenance, repairs, piloting, sail handling, marlinespike work, and rigging.
• SEA ROOM – It’s actually used to describe a safe distance from the shore or other hazards. 
• SEAWORTHY – If a vessel can safely sail in rough weather, we call it seaworthy.
• SECURE – When something is secure, it is tied safely.
• SET – When the current is flowing toward a particular direction, it is set!
• SKIPPER – The most important person on your yacht, the person in charge and responsible for the safety of all aboard 
• SLACK – Something that is not fastened.
• STERN – The rear of the yacht. Also can be the skipper’s voice tone if your yacht floats away.
• SOUNDING – This has nothing to do with sounds, it is actually a measurement of water depth.
• SPRING LINE – This is a rope that stops a boat from moving forward or backward while being fastened to a dock. Also used during docking and undocking.
• SQUALL – A squall is a sudden, violent wind that often brings rain. Get your bad weather gear ready!
• STAND-ON VESSEL – A “stand-on vessel” is a vessel that has right of way and should maintain its speed and direction. A give-way vessel should take steps to avoid a stand-on vessel 
• STARBOARD – Starboard is the right side of a vessel when looking towards the front/bow
• STEM – The front of the vessel.
• STERN – The back of the vessel.
• STERN LINE – This is a rope leading from the stern (back) of the vessel.
• TACKING – Zig-zagging into wind so the wind passes from one side to another. 
• TILLER – A tiller is a bar or handle that you use to turn a vessel’s rudder to change directions.
• TOPSIDES – This is the bit of the vessel that’s between the waterline and the deck.
• TRIM – No, not a haircut trim. This trim means making adjustments to sails to maximise their efficiency.
• TRADE WINDS – These winds blow from the north east in the Northern Hemisphere and the south east in the Southern Hemisphere. Sailors use them because they push vessels toward the equator.
• TRANSOM – The transom is a wall at the back of a vessel. 
• TRUE WIND DIRECTION – The direction from where the wind is actually coming from.
• UNDERWAY – When you are on the sea, your vessel is underway. In other words, it’s not moored, at anchor, or aground.
• VESSEL –  A craft for traveling on water, usually a larger boat or a ship.
• WATER – The liquid you can drink and float on.
• WATERLINE – A painted line on the vessel that shows where the vessel ends and the sea starts. 
• WAY – The path that a vessel leaves after itself when it moves across the sea.
• WATCH – When you are on a watch on board ­you have to work with your fellow watch members.
• WINCH – A rotating, horizontal drum, powered either by electric motor or human motion
• WINDWARD –This means to go into the wind, and it’s tough to sail windward. 
• YACHT – All kinds of vessels that are either powered or have sails

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The A-Z of Sailing Terms and Phrases

Posted by: GJW Direct   |   Mar 17, 2022

Whether you’re a beginner learning how to sail or if you’ve got some experience of boating, there’s so much boat jargon out there that it can set you adrift. We’ve put together a guide to the essential sailing terms and phrases that you need to know to improve your confidence both on and off the boat.

Click on the letter of the alphabet to learn the essential sailing terms for each letter.

A , B , C , D , E , F , G , H , I , J , K , L , M , N , O , P , Q , R , S , T , U , V , W , X , Y , Z .

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A to Z of Nautical Terms: A Complete Glossary of Boat Terminology

Are you a new boat owner? Whether you bought a jet ski or a 40-foot cabin cruiser, you’re going to need to understand the lingo while you’re out on the water. Here’s a glossary of basic nautical terms to have you sounding like a sailor.

Toward the stern of the vessel.

A sail position with the wind striking on its leeward side.

Around or near the stern of the vessel.

At a right-angle to the boat’s center-line.

Lashing the helm to the leeward side to ride out bad weather without the sails set.

The center of the deck of the vessel between the fore-and-aft.

Automatic Identification System.

Apparent Wind

The speed and direction of the wind combined with the boat’s movement and the true wind speed and direction.

To look behind the boat while driving in reverse.

Automatic Radar Plotting Aid.

Athwartships

At a right-angle to the aft-and-fore line of the vessel.

The act of measuring the angular distance on the horizon circle in a clockwise method, typically between a heavenly body and an observer.

When the wind starts to shift in an anti-clockwise direction.

Back a sail

Sheeting the sail to the windward direction, so the wind fills the sail on the leeward side.

The stay supports the aft from the mast, preventing its forward movement.

Baggywrinkle

The teased-out plaited rope wound around the stays or shrouds preventing chaffing.

Iron or lead weights are fixed in a low-access area of the vessel or on the keel to stabilize the boat.

A flexible and lightweight strip feeds into the sail leech’s batten pocket, supporting the roach.

Ballast Keel

A ballast bolted to the keel, increasing the vessel’s stability to prevent capsizing.

The widest point of the vessel or a traverse member supporting the deck. On the beam, objects are at a right-angle to the center-line.

Taking the action of steering the vessel away from the wind.

To tag a zig-zagging approach into the wind or close-hauling with alternate tacks.

The object’s direction from the observer measured in magnetic or true degrees.

To fasten the rope around the cleat using a figure-8 knot.

Securing the sail to the spar before hoisting it or connecting two ropes using a knot.

A sleeping quarters on a boat or a slip occupied by a vessel in a marina or harbor.

The loop or bend in a knot.

The round, lower part of the hull where the water collects.

The pulley fixed inside a plastic or wooden casing with a rope running around a sheave and changing to pulling direction.

Boot-Topping

The narrow-colored stripe is painted between the topside enamel and bottom paint.

The heeling action of the boat when it slews to the broadside while running downwind. Abroach usually occurs in heavy seas.

Broad Reach

The point of sailing the vessel between a run and the beam reach with the wind blowing over the quarter.

The partitioning wall in the vessel athwartship.

A measurement of distance equal to 0.1-sea mile, 185-meters, or 200-yards.

Center-Line

The center of the vessel along the aft-to-fore line.

Center-Board

A board lowers through a slot on the keel for reducing leeway.

The fitting slipping over the boom like a claw. It attaches to the main sheet after you finish reefing the sail.

Chart Datum

The reference level on the charts below which the low tide level. The sounding features below the chart datum. The datum level varies depending on country and area.

The metal, wooden, or plastic fitting used to secure ropes.

Close-Hauled

The skill of sailing close to the wind, also known as beating.

The lower, aft corner of the sail where the leech and foot meet.

Close Reach

The point where you’re sailing between the beam reach and the close-hauled or when the wind blows toward the forward of the beam.

The direction that you steer the vessel in degrees. Mariners can use true or magnetic readings or use a compass to plot the course.

Close-Winded

The act of sailing a boat close to the wind.

The rope loop at either end of the line reef points or an eye in a sail.

The difference between the direction indicated by the magnetic meridian and the compass needle, caused by carrying metal objects aboard the vessel.

Sailing with the wind blowing to the aft, in line with the center-line of the vessel.

Displacement

The displacement hull design displaces boat weight in the water and is only supported by its buoyancy.

The weight of the water displaced by the vessel is equal to the vessel’s weight.

The rope used to pull down the spar or sail.

To float the vessel with the wind or current. Or the distance covered by the boat while drifting in the current, measured in time.

The distance between the lowest point on the keel and the center-line of the vessel measured as a vertical distance.

The sea anchor thrown over the stern of a life raft or boat or to reduce drift.

Digital Selective Calling (a function on Marine radios ).

A retractable keel drawn into the vessel’s hull.

Emergency Position Indication Radio Beacon.

Estimated Position.

Estimated Time of Departure.

Estimated Time of Arrival.

The fitting adjusting the feeding line allows you to change the direction of the lead line.

The raised border on cabin tables, chart tables, preventing objects from falling off the surface.

Measurement of water depth and rope lengths.

• 1 Fathom = 6-feet = 1.83-meters.

The vessel positioning plotted by two or more positioning lines.

The vertical distance between the top of the deck and the waterline.

The closest stay running between the masthead and stemhead, hankering the mainsail.

A large-size headsail is available in various sizes, overlapping the mainsail before hoisting in fresh to light winds on all sailing points.

Two concentric rings pivot at right-angles to keep objects horizontal despite the swaying motion of the boat.

Global Navigation Satellite System.

Global Maritime Distress and Safety System.

To change tack by turning the boat into the eye of the wind.

Booming out the headsail in a windward position using the whisker pole to hold it on the opposite side of the mainsail.

The fitting anchoring the mast to the boom, allowing free movement in all directions.

This metal rail surrounds the boat’s edges, allowing easy gripping to prevent falling overboard.

Turning the stern through the wind to change from one tack to another.

The spinnaker guy controls the steadying rope for the spar through the aft-fore position of the spinnaker pole. The foreguy keeps the spinnaker pole in the forward position.

Global Positioning System.

The rope hoisting the lower sails.

Highest Astronomical Tide.

The fitting for attaching the sail’s luff to a stay.

The deck opening provides the crew with access to the berth or cabin interior.

The streamlined surround of a forestay featuring the groove allows for the sliding attachment of the luff sides of the headsail.

Head-to-Wind

When the bow of the vessel points into the direction of the wind.

The forward motion of the vessel through the water.

The toilet.

The action of backing the jib and lashing the tiller to the leeward side in rough weather conditions. The heave-to encourages the vessel to reduce headway and lie quietly.

When the vessel exaggeratedly leans to one side.

International Maritime Organization.

International Regulations for Preventing Collisions at Sea.

International Telecommunication Union

The lines on weather maps joining places with equal atmospheric pressure.

The temporary device for replacing damaged or lost gear.

The line running from aft-to-fore on both sides of the vessel. The jackstays allow for the clipping attachment of safety harnesses to prevent being lost at sea when falling overboard.

A secondary, smaller, lightweight anchor.

A dual-masted sailboat featuring a mizzen mast that’s slightly smaller than its mainmast, with a stepped forward position of the rudder post/stock.

The center-line of the vessel features the attachment of the ballast keel, allowing for the lowering of the center-board.

Kicking Strap

The line for pulling down the boom or keeping it in the horizontal position when on a run or reach.

A short length of line attached to an important object that you don’t want to lose, such as the jet ski key. The lanyard can connect to your wrist or lifejacket.

The aft edge of the triangular sail. Both side-edges of a square sail.

Lowest Astronomical Tide.

The shore on which the wind is blowing.

The natural tendency of vessels to bear away from the direction of the wind.

Moving in a direction away from the wind. The direction in which the wind is blowing.

The vessel’s leaning to one side due to improper distribution of weight in the boat’s hull.

The leading edge of the sail. Luffing up is turning the head of the boat into the wind.

The sideways motion off course resulting from the wind blowing on one side of the hull and sails.

The instrument for measuring the distance and speed of a boat traveling through the water. It is also the act of recording the details of a voyage in a logbook.

Marinized engine

A car engine or motorbike motor adapted for use in watercraft.

Maritime and Coastguard Agency.

The keel socket locating the base of the mast.

Measured Mile

The distance marked on charts measures one nautical mile between islands at sea or onshore ranges.

The short after-mast on the yawl or ketch.

This imaginary longitudinal line circling the earth, passing through both poles, cutting at right-angles through the equator.

Mean Low Water Neaps.

Mean High Water Neaps.

Mean High Water Springs.

Mean Low Water Springs.

Maritime Mobile Service Identity.

The rope used for pulling out the sail’s foot.

Overall Length (LOA)

The extreme length of the vessel. The measurement from the aftmost point of the stern to the foremost points of the bow. This measurement excludes the self-steering gear, bowsprit, etc.

An emergency call requesting immediate assistance.

The bowline on a tender or dinghy for towing or making fast.

To gradually let out the rope.

The left-hand side of the vessel when looking forward.

Point of Sailing

The angles of the wind allowing for the sailing of the boat. Or the boat’s course relative to its direction and the direction of the wind.

Your vessel is on its port track when the wind is striking the boat’s port side first, and the mainsail is out to the starboard side.

Line of Position/Position Line

The line on charts shows the bearing of the vessel and the position where the boat mist lie. Or two positional lines providing a location fix.

The steel guard rail fitted to the bow to provide additional safety for the crew when working around the boat’s edge.

The steel guard rail fitted around the stern of the boat to prevent the crew from falling overboard.

The section of the vessel midway between the beam and the stern.

The difference in water levels between the high and low tides is the range of tides. Or the distance at which you can see the light.

The act of reducing the sail surface area through folding or rolling additional materials onto the forestay or boom.

Reefing Pennant

The sturdy line allowing you to pull down the leech cringle or luff to the boom while reefing.

When sailing with the wind blowing onto the beam, with all sailing points between close-hauled and running.

Riding Sail

The small sail you hoist to maintain the steerage way during stormy weather.

The imaginary line cuts through all meridians at the same angle. Or the course of the vessel moving in a fixed direction.

Rigging Screw

The deck fitting allowing for tensioning of the standing rigging.

The act of sailing with the wind to the aft of the vessel and with the sails eased into the wide-out, full position.

The curve in a leech sail extending beyond the direct line formed from clew to head.

Running Rigging

All moving lines like halyards and sheets used for trimming and setting sails.

Search and Rescue.

A vessel with two or more masts and the mainmast featured in the aftermost position.

Search and Rescue Transponder.

The toe-rail holes allowing water to drain off the deck.

The room in which the vessel can maneuver clear of submerged dangers.

The shut-off valve for the underwater outlet or inlet passing through the vessel’s hull.

This is French for “radio silence.” You’ll use it when reporting a distress call or incident at sea.

The act of hoisting a sail. Or how the sails fit or the direction of a tidal stream or current.

A procedure word for identifying safety calls.

A steel link featuring a removable bolt crossing the open end. The shackle comes in various designs, from “S” to “U” shapes and more.

The cables or ropes typically fund in pairs, leading from the mast to the chainplates at the deck level. These shrouds prevent the mast from falling to the side, and it’s part of your standing rigging.

The rope attaching to the boom to the sail’s clew allows for the trimming and control over the sail.

Skin Fitting

A through-hull fitting featuring a hole in its skin allows for air and water passing. The seacock is the accessory used for sealing the cavity when not in use.

A boat with a single-masted design for one headsail and one mainsail.

The general term for any metal or wooden pole on board a boat. The pole gives shape to the sails.

Safety of Life at Sea.

Speed Over the Ground

A lightweight, large balloon-shaped sail for running or reacting.

The horizontal struts attach to the mast and extend to the shrouds to assist with supporting the mast.

The act of joining wires or ropes using a weaving process interlacing the fibers in the cable or rope.

The sail will stall if the airflow over the sail surface breaks up, causing the vessel to lose its momentum.

Standing Part

The part of the line you don’t use when making a knot. Or the part of a rope you use to tie around the knot.

The metal post bolted to the deck in an upright position to support the guard railing.

Standing Rigging

The stays and shrouds provide permanent support to the mast.

Starboard Tack

The vessel is on the starboard tack when the boom is out to post, and the wind strikes the boat’s starboard side.

The right-hand side of the vessel when looking forward.

The rope or wire supports the mast in the fore-and-aft direction. It is a part of the standing rigging for your boat.

The sternward movement of the vessel towards the backward direction.

Steerage Way

The vessel has steerage when it reaches sufficient speed, allowing for steering or answering the helm.

The loop of rope or wire attaches the spar to the block to make a sling.

The railing around the vessel’s stern prevents the crew from falling overboard. Modern yachts do not have the elegant wooden railing of older models. Instead, they feature tubular steel or aluminum railings, called Pushpits.

Telegraph Buoy

The buoy marks the position of a submerged cable.

To pull on the end of the rope or cable, wound around a winch.

The compass mounted over the captain’s berth, allowing for the easy reference to what’s going on in the vessel’s helm.

The metal fitting forming eyes at the end of cables, wires, or ropes.

A description for any small boat, usually inflatable models. These boats will take supplies and people between a larger vessel and the shore.

Thermal Wind

The wind occurring from the difference in the heating of the sea and the land by the sun. The sun heats the land faster than the sea, resulting in the onshore wind from the sea replacing the air rising over the land, causing the “sea breeze” phenomenon.

Thumb Cleat

A small cleat featuring a single horn.

The wooden pegs featuring vertical pairs in the gunwale for constraining the oars for rowing.

Topping Lift

The rope linking the mast to the boom end. It supports the boom, allowing for its lowering and raising.

The progress on the vessel’s journey over the ocean. The trajectory line of the boat.

The sides of the hull between the waterline and the deck.

The netting stretching across the hulls of a catamaran.

A watch period or watch duty at the helm of the vessel.

Traverse beams forming part of the stern and fixed to the sternpost of a wooden ship.

Tricolor Lamp

A lamp displaying red in proper port sectors, green in the starboard sectors, and white astern. Some authorities permit the tri-color light on smaller boats instead of conventional stern and bow lights.

Turk’s Head

A decorative knot featuring variable numbers of interwoven strands that form a closed loop.

The direction and velocity of wind measured by stationary observers. Apparent wind is wind experienced by moving objects.

Sturdy steel fittings used for attaching standing rigging to the spar or mast.

The low, forward corner of the sail. Or the action of turning the boat through the wind to get it to blow on the other side of the sails.

Sailing close-hauled to work windward on an alternate course. The wind is on one side then the other.

The low strip of steel, wood, or strapping running along the edge of the deck. You’ll use it in combination with the hand railing to hold your feet to the deck to prevent falling overboard.

The rise and fall of the ocean are caused by the moon’s gravitational effect on the earth and the ocean.

The line moving from the mast had to the spar or the boom used in raising it.

To adjust the sail angle using sheets to achieve optimal efficiency from the sail. Or it describes the action of adjusting the load, influencing the fore-and-aft angle at which it floats.

The course of the boat making good on its travel plan. A fitting of on the boom or mast to the slide on the sail fit. The fitting along which the traveler runs for altering the sheet tension.

The speed and direction of the wind when anchored, stationary on the water, or land.

Turn Buckle

The apparatus used for tightening the standing rigging on the vessel.

A line used in raising something like a spinnaker pole vertically.

The vessel is underway when it releases it fastening to shore when it is not aground or at anchor.

See kicking strap.

The wind will veer when shifting in a clockwise direction. Veering can also mean paying out anchor rope or cable in a controlled manner.

Velocity Made Good

Very High Frequency

The disturbed water left behind (astern) the boat as it moves forward in the water, usually caused by a motor.

Weather Helm

The tendency of the vessel to turn into the wind.

The distance between the radio waves.

Weather Side

The side of the vessel to which the wind is blowing.

World Geodetic Survey of 1984 (most common chart datum).

A mechanical device featuring a cable or line attached to a motor. The winch pulls the boat aboard the trailer and helps with the vessel’s launch from the trailer. The winch also gives more pulling power to withdrawing nets or other apparatus from the water.

Whisker Pole

A lightweight pole used for holding the clew out of the headsail when on a run.

The winch features a vertical handle and a horizontal shaft used in hauling up the anchor chain.

The parts of the vessel that increase the drag on the boat. Examples would be the spars, rigging, etc.

The direction from which the wind blows toward the wind (the opposite way to leeward).

Cross Track Error. The perpendicular distance between two waypoints off track.

A dual-masted vessel with its mizzen stepped aft of its rudder post/stock.

John is an experienced journalist and veteran boater. He heads up the content team at BoatingBeast and aims to share his many years experience of the marine world with our readers.

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Sailing Terms Demystified: A Comprehensive Guide to 14 Common Sailing Terminology

• May 28, 2023

Ahoy, sailors! If you’re new to the world of sailing, you might find yourself overwhelmed by the myriad of sailing terms that seasoned sailors casually toss around. But fear not! In this comprehensive guide, we’ll unravel the mystery behind common sailing terms, providing simple explanations and examples to help you navigate the nautical jargon with ease. Let’s set sail and explore these essential sailing terms.

Table of Contents

Port and starboard.

When on a boat, “port” refers to the left side, while “starboard” refers to the right side. These terms are used to communicate directions and indicate the location of objects or maneuvers. For example, “Please pass me the fenders on the starboard side.”

Bow and Stern

The “bow” refers to the front or forward part of a boat, while the “stern” refers to the back or rear part.

Windward and Leeward

“Windward” refers to the side of the boat or the direction from which the wind is coming. On the other hand, “leeward” refers to the opposite side, sheltered from the wind. Sailors use these terms to plan their course and make tactical decisions.

Tacking and Jibing

“Tacking” is the act of turning the bow of the boat through the wind, changing the side from which the wind is coming. This allows the boat to change direction while sailing upwind. “Jibing” is the opposite maneuver, turning the stern of the boat through the wind to change direction when sailing downwind.

“Rigging” refers to the system of ropes, wires, and other components used to support and control the sails and mast. It includes various elements such as halyards (ropes used to hoist the sails), sheets (ropes used to control the angle of the sails), and shrouds (wires supporting the mast).

“Heeling” describes the leaning or tilting of a sailboat due to the force of the wind on the sails. The boat can lean to one side, causing it to tilt and creating a thrilling sensation. Sailors adjust the sails and shift their weight to maintain balance and control.

“Reefing” is the process of reducing the area of a sail to decrease its surface area and power in strong winds. This is done by partially lowering or folding a section of the sail and securing it, thus making the sail smaller and more manageable.

The “keel” is the central structural element of a sailboat, usually made of heavy material such as lead or iron. It extends beneath the boat into the water and provides stability and prevents the boat from sliding sideways.

Navigational Markers

Navigational markers, also known as buoys, are floating objects that indicate safe passages, hazards, or important locations in the water. They are color-coded and labelled according to their purpose. For instance, a red buoy with even numbers indicates the right side of a channel when entering from the sea.

Points of Sail

Sailboats have different angles at which they can sail relative to the direction of the wind, which are called “points of sail.” The main points of sail include close-hauled (sailing as close to the wind as possible), reaching (sailing at an angle between close-hauled and a broad reach), and running (sailing with the wind directly behind).

By familiarizing yourself with these essential sailing terms, you’ll be able to communicate effectively, understand instructions, and navigate the sailing world with confidence. So hoist your sails, embrace the wind, and embark on unforgettable nautical adventures armed with the knowledge of sailing terminology. Fair winds and smooth seas!

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Sailing Basics: 10 Nautical and Sailing Terms To Learn

If you’re learning how to sail—or if you’re thinking about purchasing a sailboat of your own—these handy terms can provide a helpful overview of sailing basics you need to become familiar with.

Explore Sailboat Brands & Manufacturers

10 Nautical and Sailing Terms Everyone Should Know

The back of a ship. If something is located aft, it is at the back of the sailboat. The aft is also known as the stern. 

The front of the ship is called the bow. Knowing the location of the bow of the boat is important for defining two of the other most common sailing terms: port (left of the bow) and starboard side (right of the bow). 

Port is always the left-hand side of the boat when you are facing the bow. Because “right” and “left” can become confusing sailing terms when used out in the open waters, port defines the left side of the boat as it relates to the bow or front. 

Read Next: Beginner Sailing Tips

4. Starboard 

Starboard is always the right-hand side of the boat when you are facing the bow. Because “right” and “left” can become confusing sailing terms when used out in the open waters, starboard defines the right-hand side of the boat as it relates to the bow or front. 

5. Leeward 

Also known as lee, leeward is the opposite direction of the wind blowing (windward). 

6. Windward 

The direction in which the wind is currently blowing. Windward is the opposite of leeward (the opposite direction of the wind). Sailboats tend to move with the wind, making the windward direction an important sailing term to know. 

The boom is the horizontal pole extending from the mast’s bottom. The sailboat can harness wind power to move forward or backward. This is done by adjusting the boom towards the direction of the wind. 

Located beneath the boat, the rudder is a flat piece of wood, fiberglass, or metal used to steer the boat. Larger sailboats control the rudder via a wheel, while smaller boats will have a steering mechanism directly aft. 

9. Tacking 

The opposite of jibing, this basic sailing maneuver refers to turning the boat’s bow through the wind so that the wind changes from one side of the boat to the other. The boom of a boat will constantly shift from one side to the other when performing a tack or a jibe. 

10. Jibing 

The opposite of tacking, this basic sailing maneuver refers to turning the stern of the boat through the wind so that the wind changes from one side of the boat to the other. The boom of a boat will always shift from one side to the other when performing a tack or a jibe. Jibing is a less common technique than tacking since it involves turning a boat directly into the wind.

Conclusion: Learn Nautical Terms Before Setting Sail!

In conclusion, knowing sailing terms and phrases is an essential skill for anyone who wants to take up sailing as a hobby. It enables sailors to communicate effectively with each other and understand the different parts of the boat and their functions. It also enhances safety and reduces the risk of accidents on the water. 

Therefore, whether you are a seasoned sailor or a beginner, learning these sailing terms can enhance your enjoyment of this exciting and rewarding sport!

Editor’s Note:  This article was updated in April 2023.

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Learn the Parts of a Sailboat and How to Communicate Them

Essential Words You Need to Know

Pierre-Yves Babelon/Getty Images

The following are terms related to sailboats and their equipment , including the parts of the boat and how to communicate on one. Enjoy our list of all things nautical.

• Auxiliary - A sailboat's engine, or a sailboat with an engine
• Backstay - The cable, usually made of wire, running from the stern to the masthead that helps support the mast
• Ballast - The weight in a sailboat's keel (sometimes in a centerboard) that helps keep the boat from leaning too much
• Batten - A slat, typically made of plastic, placed in a pocket in the mainsail to help it maintain good shape
• Beam - The width of the boat at its widest point
• Bitter end - The free end of a line
• Block - A pulley-like device used on a boat, with a sheave around which a line runs
• Boom - The spar, which is usually horizontal, back from the mast to which the foot of a sail is attached
• Boom vang - A device that prevents the boom from rising and, in some types, lowering
• Bow - The front section of the boat
• Cat rig - A sailboat designed for using a mainsail only, with the mast usually located more forward than in a sloop
• Centerboard - A thin, keel-like structure that can be raised (usually rotated on a hinge up into a centerboard trunk in the hull) that's present on many sailboats without a fixed keel to prevent the boat from being blown sideways
• Chock - A type of fairlead fitting through which an anchor rode or dock line passes to reduce chafing
• Cleat - A fitting around which a line is secured
• Companionway - The entrance area and steps from the cockpit into a sailboat's cabin
• Clew - The lower rear corner of a sail
• Daggerboard - Like a centerboard, but raised and lowered vertically instead of rotating on a hinge
• Daysailer - Generally a small sailboat without a cabin large enough for comfortable overnight cruising
• Dinghy - A type of small sailboat or a small row or powered craft typically taken along when cruising in a larger sailboat
• Displacement - The weight of a boat, equal to the weight of water the boat displaces
• Dodger - A spray shield often made of foldable or removable fabric at the front of the cockpit
• Draft - The distance from a boat's waterline to the lowest part of its keel
• Fender - A bumper generally made of rubber hung alongside the boat to prevent the hull from rubbing against a dock or other structure
• Foot - The bottom edge of a sail (compare to leach and luff, below)
• Forestay - A cable usually made of wire running from the bow to the masthead that helps support the mast
• Forward - Toward the bow
• Freeboard - The height of the deck above the water (the topsides section of the hull)
• Gate - An opening in the lifelines for boarding the boat, also called gangway
• Genoa - A large jib sail (the clew extends aft of the mast)
• Gooseneck - The fitting that attaches the boom to the mast
• Ground tackle - The collective term for a boat's anchor and anchor rode
• Gunwale (sometimes gunnel) - The outer edge of the boat's deck and cockpit, also called the rail
• Halyard - Line or wire used to hoist a sail
• Hank on - To attach a jib sail to the forestay with small snap hooks called hanks
• Head - The bathroom of a boat and also the top corner of a sail
• Helm - The means by which the sailboat is steered: the tiller or wheel
• Jackline - A line, strap, or wire secured over the deck as an attachment point for the tether of a safety harness
• Jib - The triangular sail attached to the forestay
• Keel - The lower section of a sailboat's hull that's usually permanent and counteracts sideways movement and typically contains ballast
• Ketch - A type of sailboat with two masts
• Lanyard - A short cord or line, often used to secure a piece of gear (knife, whistle, etc.) that might be dropped
• Leech - The back edge of a jib or mainsail (compare to foot and luff, above and below)
• Lifeline - A line or wire (often vinyl coated) all around the boat that's held up with stanchions to prevent falling overboard
• Line - Any piece of rope used on a boat
• Luff - The leading edge of a jib or mainsail (compare to foot and leech, above)
• Mainmast - The mast, or the tallest mast of a sailboat with multiple masts
• Mainsail - The sail affixed to and behind the mainmast
• Mast - A tall vertical pole on a sailboat to support sails and rigging
• Mast step - The support structure for the bottom of the mast
• Mizzen - The smaller aft mast on a ketch or yawl; the mizzensail is affixed to and behind the mizzenmast
• Multihull - A catamaran (two hulls) or trimaran (three hulls)
• Outhaul - A fitting to adjust the tension of the foot of the mainsail on the boom
• Padeye - A fitting usually made of metal with a loop or hoop to which other gear is attached
• Pendant (sometimes pennant) - A short line attaching the bow of a boat to a mooring, or a short wire attached to a sail or halyard as an extension
• PFD - A personal flotation device such as a lifejacket or an inflatable PFD
• Port - The left side of the boat when facing forward; the opposite of starboard
• Preventer - A-Line or other device used to prevent the boom from accidentally swinging from one side to the other
• Pulpit - A rail generally made of stainless steel around the bow or stern typically at the height of the lifelines
• Rail - the outer edge of the boat's deck and cockpit; also called the gunwale
• Rig (or rigging) - The mast, boom, and associated equipment including stays, shrouds, sheets, and halyards
• Rode - The line or chain between an anchor and the boat
• Roller furler - A device by which a sail is rolled up, such as the jib rolling around a rotating forestay fitting
• Rudder - An appendage below or on the boat's stern that is rotated by moving the tiller or wheel to steer the boat
• Safety harness - Personal gear, either a separate harness or one built into a PFD, that attaches to a tether to keep the person on board
• Sail ties - Short straps or pieces of line used to tie a lowered mainsail to the boom or secure a sail on deck
• Schooner - A type of sailboat with two or more masts, the forward one being shorter than the main mast
• Seacock - A valve fitting for closing an opening through the boat's hull (drains, water pipes, etc.)
• Shackle - A fitting typically made of metal that secures two things together, such as a halyard shackle connecting to a sail
• Sheet - The line used to let out or trim in a sail; on a sloop, a mainsheet and two jib sheets
• Shroud - Wire or line stay from the deck or hull supporting the mast on each side
• Sloop - A type of sailboat with one mast and two triangular sails (main and jib)
• Sole - The floor of the cockpit or cabin
• Spinnaker - A lightweight sail used downwind, often ballooning in front of the boat
• Spreaders - Metal struts on the mast that hold the shrouds out from the mast for a better support angle
• Stanchions - Short metal poles around the boat's perimeter that support the lifelines
• Starboard - The right side of the boat (when facing forward); opposite of port
• Stay - Wire or line from the deck or hull to support the mast; stays include the forestay, backstay, and shrouds (on the sides)
• Tack - The bottom front corner of a sail
• Telltales - Pieces of yarn or ribbons on the luff of a sail to help with trimming, or fastened to shrouds to show the wind direction
• Tether - A short line or strap that runs between a safety harness and a point of attachment on the boat to prevent going overboard
• Tiller - A long handle connected to the rudder or rudder post on many sailboats for steering
• Topping lift - A wire or line from the masthead that holds up the boom when the sail is lowered
• Topsides - The area of outer hull above the waterline
• Traveler - A fitting allowing the mainsheet attachment to the boat to be adjusted side to side
• Vang - See Boom vang
• Whisker pole - A pole used to hold out the jib when sailing off the wind
• Winch - A drum-like device used to pull in lines under strain (halyards, sheets)
• Windless - A heavy winch used with the anchor rode
• Yawl - A type of sailboat with two masts, the aft one (mizzen) being behind the rudder post

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Sailing Terms: A Complete Guide 2024

Whether you dream of hoisting the mainsail, feeling the wind in your hair, or simply want to unravel the mysterious language of the sea, this blog post is your ultimate compass for popular sailing terms used today.

Sailing is an art that has been practiced for centuries, capturing the hearts and imaginations of adventurers and explorers throughout history. From the earliest voyages of discovery to modern-day regattas, the language of sailing has evolved, creating a rich tapestry of nautical terminology.

For the uninitiated, the world of sailing may seem like an intimidating labyrinth of jargon, full of puzzling phrases and unfamiliar expressions.

But fear not! In this comprehensive guide, we will embark on a voyage of understanding, demystifying the terminology that surrounds this timeless and awe-inspiring activity.

Whether you’re an enthusiastic beginner, an armchair sailor, or simply curious about the fascinating lexicon of the sea, this blog post will provide you with a sturdy anchor of knowledge.

We’ll explore the essential terms that every sailor should know, from basic equipment and boat parts to navigation techniques and crew roles.

Prepare to set sail as we delve into the meaning behind expressions like “trimming the sails,” “starboard,” “tacking,” and “point of sail.”

By the time we reach the shore, you’ll have gained a solid grasp of sailing terminology, allowing you to converse fluently with seasoned sailors, comprehend sailing literature, and perhaps even take your first steps towards mastering the art of sailing.

So, whether you’re a landlocked adventurer dreaming of the open seas or a curious soul seeking to expand your nautical lexicon, join us as we unfurl the sails and navigate the captivating world of sailing terms.

Let’s set a course for knowledge, with the wind in our sails and the horizon on the horizon!

Table Of Contents

• Important sailing terms for beginners
• Sailing terms: A complete guide

Important Sailing Terms For Beginners

We’ve all been there. In fact, sometimes I very much feel that I am still a beginner and I think any sailor that tells you they don’t have days where they feel like too is lying!

Sailing is ever-changing, and every situation is ever so slightly different. It’s one of the most wonderful things about sailing and one of the absolute worst!

But one thing is for sure, when you’re a beginner and being totally bombarded with sailing terms it’s really not helpful. You don’t need to know every single sailing term straight away. No matter what your crusty sailing instructor tells you!

There are however some really useful ones to learn straight away and these sailing terms will help you out a lot as you learn the ropes (or the lines, as us sailors like to say!) We’ve narrowed down the sailing terminology that we found essential when we started out sailing.

Focus on these for now and you’ll be amazed at how quickly the others become part of your everyday vocabulary as you learn to sail .

Aft : The back of the boat, or near the back of the boat. Aft basically means back!

Alongside: When the boat is next to a pier or another vessel.

Apparent wind : This is the wind that can be felt. It could refer to speed or direction, and is often different to the true wind. For example, if you are sailing forwards at 5 knts, the wind speed will feel stronger than if you are sitting still. The wind that can be felt is the apparent wind.

Astern : Behind the boat. Sailors often say ‘going astern’, which means going backwards or going in reverse.

Beam reach : A point of sail. When the wind is blowing perpendicular to the direction that you’re sailing.

Bearing away : Steering the boat away from the direction in which the wind is blowing.

Bilge : This is the bottom of the inside of the boat. Water collects in the bilge, and then you use a bilge pump to pump the water overboard. Many people store things in their bilge for longer passages.

Boom : This is the long pole that sticks out of the mast. It holds the bottom of the mainsail in place and can be moved from side to side depending on where the wind is coming from. Booms can be very dangerous, as they are heavy and tend to carry a lot of power when the sail is full of wind.

Bow : The front of the boat.

Broad reach : A point of sail. Sailing with the wind coming off your stern quarter, a position in between the beam and stern of the boat.

Cleats : The metal blocks to which you secure lines.

Close-hauled : A point of sail. Sailing as close to the wind as possible without the sails flapping. On a monohull, the boat will usually heel over the most on this point of sail.

Close Reach : A point of sail. When you’re sailing between a beam reach and close hauled. Again, as you are travelling towards to wind on this point of sail it is likely the boat will be heeled over.

Dead run or Running Dead Downwind : A point of sail. Sailing with the wind coming from directly behind the boat. Many people use a light wind sail to catch the wind if the conditions are right, or pole out a sail to be ‘wing on wing’ and catch as much of the wind as possible.

Draft: The depth of a boat when it’s sitting in the water.

Fender: An inflated bumper used to keep the boat from banging into the dock or another boat.

Genoa : A large forward sail that comes back past the mast when fully unfurled. It is the same as a job sail but larger.

Heave to: A sailing manouvre used mostly during storms, which lies the boat favourably to waves while making only very slight headway.

Jib : A triangular forward sail, smaller than a genoa.

Jibing : When you steer the boat downwind from one direction to the other to keep the sails full. As you move from one direction to the other the wind will come from a different side and the sails will need to be moved across the boat to keep them powered up. It is similar to tacking, but going downwind instead of up! There is more danger from the boom when jibing.

Mainsail : The main sail on the boat, attached to the mast.

Mayday : The emergency call you make over the radio to show the boat or crew are in distress and needs immediate assistance.

No-sail zone : Also called the dead zone. This is an area 45 degrees either side of directly into the wind. This is the area a boat can’t sail in, and your sails will flap and the boat will power down if you try.

Port : The left side of the boat when facing forward.

Reef : When you lower some of the sail to give less sail area to the wind, usually done as the wind speed picks up.

Sheet : A line or rope used to control the trim of a sail.

Starboard : The right side of the boat when facing forward.

Stern : The back end of the boat.

Tacking : Turning the boat into the wind to change direction. You will pass through the dead zone quickly, adjusting the sails to the other side of the boat so you can continue to sail towards the wind in a zig-zag type shape.

Topping lift : A rope running from the back end of the boom to the top of the mast. This line controls the height of the boom and prevents it from falling when the sail isn’t raised.

Winch : A mechanical device used to pull the lines that control sails.

Windlass : A winch used to raise and lower the anchor.

Most of the terms below you can muddle by without knowing and pick them up as you go.

A lot of them are just fancy terms for things you probably just use a different name for in every day life, and while they’re useful to have in your sailing vocabulary they can be communicated in other ways, or picked up as and when is necessary!

Sailing Terms: A Complete Guide

Here is a more comprehensive guide to different sailing terms. Feel free to look through them and start to get familiar with them if you’re a new sailor, but don’t let them overwhelm you! You will pick them up the more time you spend on the water and around other sailors.

Abeam : Anything to the side of your boat. If you spot a vessel beside you, you can say it is abeam, and people will know to look out at 90 degrees from the centreline of your boat.

Abaft : Towards the back of the boat. Anything abaft means towards the stern, so the life ring is abaft the mast, meaning the opposite of forward or the mast. It could also mean something behind the boat, like rocks or another vessel.

Abandon ship: A command given to leave the boat immediately. Usually given by the captain when the boat and crew are in serious danger.

Adrift: Unattached to the sea bed. It usually means a vessel that isn’t anchored and not under control, so free to float around where ever the wind blows.

Aground: Resting on or touching the ground or bottom. This usually applies to a ship that has run aground, and is now stuck on the sea floor.

Anchor: A heavy piece of specially shaped metal that keeps the boat secured to the ground.

Athwartship : The position across a vessel from side to side at right angles to the keel.

Backing (a sail) : Forcing the wind into the ‘wrong’ side of the sail by pulling it to the opposite side of the boat.

Backstay : The wire that runs from the back of the boat up to the top of the mast to stop it from falling forward. The backstay is often thicker and stronger than the other stays.

Bailer : A scoop that is used to collect water from the bottom of a vessel. It can be any container! You’ll want one in your grab bag for if you ever need to bail water from a life raft or a dinghy.

Ballast : Weight to add stability to your vessel. The weight is usually lead or iron and can often be found within the keel of the boat. Some boats add extra ballast for more stability.

Batten : A thin strip of fiberglass (usually) that slots into pockets of the mainsail to help it maintain an open shape. Battens run from the back edge of the sail, the leech, to the forward edge of the sail, the luff. Most will have more than one batten, but not all mainsails have battens.

Beam : The widest point of the boat.

Bend : A knot used to connect two ropes.

Berth : Berth has several meanings. It could be your bed onboard, or it could be your slip in a marina.

Bight : A bend in a rope or line. When a rope forms a bight, it has changed direction 180 degrees.

Bimini : The cover over the cockpit. Usually this is made from canvas and can be removed. It shades from the sun and offers a little protection from the rain.

Binnacle : The pedestal centrally located in the cockpit. It usually holds the steering wheel along with navigational equipment like your chart plotter and compass.

Bitter end: The last part of a rope or cable, usually referring to the anchor chain. Once the chain or rope has been paid out completely it has reached its bitter end.

Block : A pulley.

Boom vang : This prevents the boom and mainsail from moving upwards which sailing. It pulls the boom down to help the mainsail keep the right shape.

Boot Top or Boot Stripe : The paint between the boat’s bottom paint and it’s topside paint. It’s usually a white stripe that runs around the boat.

Bowsprit : A section of the boat that runs even further forward than the bow. It looks like a small diving board sticking out the front of the boat. Not all boats have a bowsprit and they are more common on classic boats. They allow the rigging to be attached further forward.

Broach : When a boat sailing downwind accidentally ends up sideways to the waves and heels over dangerously. This is usually caused by large waves that force the boat to travel too fast and end up in a position beam on to the waves.

Bulkhead : The walls in a boat that run across the centerline of the vessel. These are structurally important and mustn’t be messed with!

Capsize : When a vessel tips over past 90 degrees.

Catamaran : A vessel with two hulls.

Centerboard : A keel that can lift up and down depending on the point of sail. It helps the boat to point further to wind when down, or run more easily downwind when raised. When raised, the boat can sneak into shallower waters.

Centerline : An imaginary line that runs all the way from the center of the bow to the center of the stern.

Chainplate : A metal plate attached to the hull of the boat, which the rigging is attached to. Chainplates are very important to hold the mast upright, and must be well maintained. Some are visible on the exterior and others are hidden on the interior.

Chandlery : A store that sells boat supplies.

Chock : A fitting that a line passes through to change direction without chafing.

Clew : The lower back corner of a sail, where the foot and leech of the sail meet.

Coamings : A area around the cockpit or hatches that is designed to keep out water.

Cockpit : The area where the helm of the boat is. It is usually where there is seating, and the entrance to the interior of the boat. Cockpits can be at the stern of the boat or in the centre. Some sailors prefer a centre cockpit for a feeling of safety, others prefer the extra space you get with an aft cockpit.

Companionway : The entrance into the interior of the vessel.

Cotter pin : A bendable metal pin that you fit into a metal rod and then bend back to lock. You will find these most commonly on the rigging.

Daybeacons : Markers for navigation that are on posts. These are red (port) or green (starboard).

Dead reckoning : Determining a vessel’s position by knowing the direction and speed traveled.

Dinghy : The small, usually inflatable boat that you use to reach the shore when your big boat is at anchor. These are also called tenders.

Dodger : This is like the windshield of the boat. It’s a structure at the front of the cockpit to protect the helmsman from wind or spray.

Dismasting : When the mast breaks off. This usually happens because of a rigging failure, or can happen if the rig is overpowered.

Displacement : The weight of the water that would otherwise be in the place of the boat’s hull.

Drogue : A sea anchor to help slow down the boat. You might use one in big seas when the boat is sailing too fast down the waves. It can look like a small parachute on a line that you hang off the back of a boat, or even just a line or several lines hanging from the stern can help to slow the boat down.

Ebb tide : After high tide when the water is receding towards low tide.

EPIRB : Emergency Position Indicating Radio Beacon. This device transmits a distress signal to alert emergency services to the position of a vessel in trouble. Most people carry an EPRIB in their grab bag, or an easy to reach place in the boat.

Fairlead:  A fitting which ensures a line runs in the right direction without snagging on anything.

Fathom : A measurement of water depth equal to 6 feet, not used very often anymore!

Fid : A tool used for splicing a line.

Fiddle : The raised edge around a table to prevent things from falling off in a seaway.

Fix : Determining a vessel’s location by using the compass bearing of two or more fixed points of reference. You will usually use this to check the boat isn’t dragging when anchored.

Fin keel : A fixed keel that hangs below the boat to provide stability.

Flogging : When a sail flaps noisily in the wind because it is not being filled properly. This usually happens when the boat is trying to sail too close to the wind.

Flood tide : The time between low tide and high tide when the water is rising.

Following sea: Waves or tidal movement going in the same direction as the boat.

Foot : The bottom edge of a sail.

Fore : At or near the bow (front) of a vessel.

Forestay : The rigging wire which goes from the bow to the top of the mast. This is where the foresail is attached, either hanked on or using a roller furling system. Most modern boats use a furling system as it is easier and quicker to use.

Full keel : A fixed, ballasted keel running the whole length of the boat.

Furling system : The system used to roll up a sail when it’s not in use and unfurl it when it is. It is most common to find furling foresails but in mast furling for the mainsail has also become more popular over recent years.

Freeboard : The distance on a vessel from the waterline to the deck.

Galley : The kitchen!

Gelcoat : The paint used on the outside of a boat. It’s a tough resin that forms a protective coating.

Gimbals : You will usually find these on your galley stove. They make your oven act a little like a rocking crib, so that it can stay level even when the boat is heeling or rocking. This is essential for keeping things on the stove while sailing or in a rolly anchorage.

Gooseneck : The point at which the boom attaches to the mast, letting the boom move freely from side to side and up and down. You then use lines to control it!

Ground tackle : The anchor, chain, and line that you use for anchoring or fixing the boat to the bottom of the sea when you want to stop and stay put.

Gunwale : The top edge of a boat’s hull.

Halyard : The line which attaches to a sail to raise it.

Hanks : The clips that attach the front edge of a sail to the forestay. It is more common these days to use a furling system for your main forestay, so you will likely only see these on a storm sail.

Hatch : A window in the ‘roof’ of the sailboat. It opens out onto the deck.

Head : The bathroom on a boat.

Headway : The amount you’re moving forward through the water. Like ‘making headway’.

Heave to : A way to keep the boat from moving through the water with minimal drift, usually used in heavy, dangerous seas. You back the foresail but lock the helm hard over towards the wind. Your boat should sit nicely creating a slick over breaking waves and you should only drift a little through the water. Not all boats will heave to nicely, so you should test this method with your vessel.

Heel : The tilt of a sailboat that usually happens when you’re sailing towards the wind.

In-Irons : When you steer the boat into the wind (by accident or on purpose) and the sails lose power. The boat will lose steerage as it slows down.

Jackline or Jackstay : Safety lines that run from the bow to the stern. You can clip yourself onto these lines so that you don’t fall overboard when doing tasks that require you to leave the cockpit.

Jib sheets : The lines you use to control the jib.

Kedge anchor : A small, lighter second anchor that you can use as a back up or a stern anchor.

Keel : The bottom of the boat.

Ketch : A sailboat with two masts, where the forward mast is the taller mast.

Knot : Usually referring to speed when sailing rather than the knots you tie in a line. One knot is equal to one nautical mile per hour.

Lazyjacks : Thin lines that run from the boom to the mast to help control the mainsail when it’s lowered.

Leech : The back edge of a sail.

Lee shore : The shore onto which the wind is blowing. This is the side of an island you want to avoid anchoring on, as it will mean the wind is blowing directly into the anchorage.

Leeward : The direction the wind is blowing towards. So if the wind is blowing from the north then the south is leeward.

Liveaboard: Someone who lives full time, or the majority of the time, on board their boat

Luff : The forward edge of the sail.

Mast: The tall pointy thing that holds up the sails!

Mizzen : The shorter mast behind the main mast on a ketch.

Monohull : A boat with a single hull.

Mooring field : An anchorage full of permanently attached buoys , to which you can moor up your boat.

Multihull : A vessel with more than one hull like a catamaran or trimaran.

On the hard : When your boat is out of the water, usually in a boat yard.

Painter : The line which attaches your dinghy to your main boat.

Pan Pan : This is a distress call that isn’t quite as urgent as a Mayday call. You will put out a pan pan on the radio if your boat needs assistance or you want to alert the emergency services of a problem that might get worse and become a mayday. For example, you have lost your engine and will drift into rocks if you can’t solve the problem or the wind doesn’t pick up in time.

Points of sail : The way your boat is travelling in relation to the wind.

Port tack : Sailing with the wind hitting the port side of the vessel.

Pulpit : The metal rails at the bow of the boat.

Pushpit : The metal rails at the back of the boat.

Quarter : The back corner area of the boat.

Reef : Reefing the sails is when you lower some of the sail to give less sail area to the wind, usually done as the wind speed picks up.

Rigging : All the wires and ropes used to hold the mast in place and adjust the sails.

Roach : The curved shape of the rearmost edge of a triangular sail.

Roller furling : The system that rolls up the sails to store them when they’re not in use.

Rudder : The thing that controls the direction of the boat. This is usually a fin at the stern of the boat under the water line and behind the propeller. It’s controlled by a steering wheel or tiller from the cockpit.

Running : Sailing downwind.

Running rigging : The lines which control the sails.

Schooner : A sailboat with two or more masts. The mainmast is at the back.

Seacock : A valve that can be opened or closed to control the flow of water in or out of the boat.

Scope : The length of chain between the anchor and the boat.

Scuppers : Deck drains to allow water to flow overboard when it rains or when crash onto the cockpit.

Securite : A call transmitted over the radio to alert sailors to potential dangers in their area.

Shackle : A metal U or D shaped link with a removable pin that can be used to attach lines to blocks and other useful things like that!

Shrouds : Wires or ropes running from the chainplates to the mast to stop the mast moving from side to side.

Skeg : An extension of the hull hanging in front of the rudder, that the rudder is attached to. It can help protect the rudder from getting hit or from debris in the sea.

Sloop : A single masted sailboat with a mainsail and one foresail.

Slugs : The things that the mainsail sits in to run it up the boom.

Spinnaker : A sail used for light, downwind sail. Spinnakers are often the biggest sail on the boat, made from a light material and they are often brightly coloured.

Splice : When you connect two lines together using their weave. You will often need a fid for this.

Spreaders : The horizontal poles that come out from the sides of the mast.

Spring line : These are used when docking the boat. They are the lines that come from the bow or the stern to a point midship on the dock. They are used to control how far the boat can move forwards and backwards while in its slip.

Stanchions : The metal posts along the outside of the deck through which the lifelines run.

Standing rigging : The wires and ropes, such as the shrouds and stays, that are permanently in place and hold up the mast.

Starboard tack : Sailing with the wind hitting the starboard side of the boat.

Stays : The wires or ropes running from the bow and stern to stop the mast moving forwards or backwards.

Storm jib : A small foresail that can be hanked on during heavy weather. It is made from tough, heavy material and often brightly coloured.

Tack : The forward lower corner of a sail.

Tender : The same as a dinghy. A small boat, usually inflatable, that you use to get to shore when the boat is anchored.

Tiller : A bar used to control the rudder from the cockpit. It is the same as a steering wheel, but some prefer using a rudder, or find it takes up less space in the cockpit.

Toe rail : The raised lip around the edge of the deck that helps stops things falling overboard.

Trim : Adjusting the shape and angle of the sails to get optimum performance.

Watermaker: A device used on board sailboats to make fresh drinkable water from the sea.

Weather helm: If the helm was centered, the boat would turn towards the wind (weather). Because of this, the tiller must be pulled to the windward side of the boat in order to make the boat sail in a straight line.

Windward : The direction from which the wind is blowing.

Wing on wing : Sailing downwind with the foresail and the mainsail out on different sides of the boat to catch as much of the wind as possible.

Conclusion: Sailing Terms

As our voyage through the captivating realm of sailing terms comes to an end, we can reflect upon the vast expanse of knowledge we have acquired.

From bow to stern, port to starboard, and every gust of wind in between, we have ventured into the depths of nautical language, emerging with a newfound understanding of this unique language.

By unraveling the mysteries of sailing terminology, we have unlocked the door to a world of adventure, heritage, and camaraderie. We now possess the tools to decipher the conversations of seasoned sailors, navigate the pages of maritime literature, and even embark on our own seafaring adventures with confidence.

But beyond the practical benefits, exploring sailing terms has allowed us to connect with a tradition that spans generations. It has illuminated the bond between humans and the vast, untamed sea, reminding us of the courage, skill, and resourcefulness required to tame its forces.

As you continue your own sailing journey, remember that understanding the language of the sea is just the beginning.

Embrace the spirit of exploration, befriend the winds, and let the gentle lapping of the waves guide you towards new horizons. Seek out opportunities to hoist the sails, adjust the rigging, and experience the thrill of harnessing the elements.

May the knowledge gained from this voyage serve as a rudder, steering you towards a deeper appreciation of sailing’s beauty and complexity.

And as you embark on your own adventures, may these sailing terms be your faithful companions, reminding you of the legacy of sailors who have come before and the timeless allure of the open water.

So, fair winds and following seas, dear readers! May you find joy, excitement, and a profound sense of connection as you explore the vast ocean of sailing terminology.

Whether you choose to cast off the lines and embark on your own voyage or simply revel in the tales and traditions of seafaring lore, let the language of sailing be your guiding star.

Until we meet again on the vast blue expanse, keep dreaming of distant shores, salty breezes, and the eternal call of the sea. Bon voyage!

And yes, this is how I talk all the time. Because I’m a sailor, and that’s how we nautical folk communicate!

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Sailboat Parts Explained: Illustrated Guide (with Diagrams)

When you first get into sailing, there are a lot of sailboat parts to learn. Scouting for a good guide to all the parts, I couldn't find any, so I wrote one myself.

Below, I'll go over each different sailboat part. And I mean each and every one of them. I'll walk you through them one by one, and explain each part's function. I've also made sure to add good illustrations and clear diagrams.

This article is a great reference for beginners and experienced sailors alike. It's a great starting point, but also a great reference manual. Let's kick off with a quick general overview of the different sailboat parts.

General Overview

The different segments

You can divide up a sailboat in four general segments. These segments are arbitrary (I made them up) but it will help us to understand the parts more quickly. Some are super straightforward and some have a bit more ninja names.

Something like that. You can see the different segments highlighted in this diagram below:

The hull is what most people would consider 'the boat'. It's the part that provides buoyancy and carries everything else: sails, masts, rigging, and so on. Without the hull, there would be no boat. The hull can be divided into different parts: deck, keel, cabin, waterline, bilge, bow, stern, rudder, and many more.

I'll show you those specific parts later on. First, let's move on to the mast.

Sailboats Explained

The mast is the long, standing pole holding the sails. It is typically placed just off-center of a sailboat (a little bit to the front) and gives the sailboat its characteristic shape. The mast is crucial for any sailboat: without a mast, any sailboat would become just a regular boat.

I think this segment speaks mostly for itself. Most modern sailboats you see will have two sails up, but they can carry a variety of other specialty sails. And there are all kinds of sail plans out there, which determine the amount and shape of sails that are used.

The Rigging

This is probably the most complex category of all of them.

Rigging is the means with which the sails are attached to the mast. The rigging consists of all kinds of lines, cables, spars, and hardware. It's the segment with the most different parts.

The most important parts

If you learn anything from this article, here are the most important parts of any sailboat. You will find all of these parts in some shape or form on almost any sailboat.

Okay, we now have a good starting point and a good basic understanding of the different sailboat parts. It's time for the good stuff. We're going to dive into each segment in detail.

Below, I'll go over them one by one, pointing out its different parts on a diagram, listing them with a brief explanation, and showing you examples as well.

After reading this article, you'll recognize every single sailboat part and know them by name. And if you forget one, you're free to look it up in this guide.

On this page:

The hull is the heart of the boat. It's what carries everything: the mast, the sails, the rigging, the passengers. The hull is what provides the sailboat with its buoyancy, allowing it to stay afloat.

Sailboats mostly use displacement hulls, which is a shape that displaces water when moving through it. They are generally very round and use buoyancy to support its own weight. These two characteristics make sure it is a smooth ride.

There are different hull shapes that work and handle differently. If you want to learn more about them, here's the Illustrated Guide to Boat Hull Types (with 11 Examples ). But for now, all we need to know is that the hull is the rounded, floating part of any sailboat.

Instead of simply calling the different sides of a hull front, back, left and right , we use different names in sailing. Let's take a look at them.

The bow is the front part of the hull. It's simply the nautical word for 'front'. It's the pointy bit that cuts through the water. The shape of the bow determines partially how the boat handles.

The stern is the back part of the hull. It's simply the nautical word for 'back'. The shape of the stern partially determines the stability and speed of the boat. With motorboats, the stern lies deep inside the water, and the hull is flatter aft. Aft also means back. This allows it to plane, increasing the hull speed. For sailboats, stability is much more important, so the hull is rounded throughout, increasing its buoyancy and hydrodynamic properties.

The transom is the backplate of the boat's hull. It's the most aft (rear) part of the boat.

Port is the left side of a sailboat.

Starboard is the right side of a sailboat

The bilges are the part where the bottom and the sides of the hull meet. On sailboats, these are typically very round, which helps with hydrodynamics. On powerboats, they tend to have an angle.

The waterline is the point where the boat's hull meets the water. Generally, boat owners paint the waterline and use antifouling paint below it, to protect it from marine growth.

The deck is the top part of the boat's hull. In a way, it's the cap of the boat, and it holds the deck hardware and rigging.

Displacement hulls are very round and smooth, which makes them very efficient and comfortable. But it also makes them very easy to capsize: think of a canoe, for example.

The keel is a large fin that offsets the tendency to capsize by providing counterbalance. Typically, the keel carries ballast in the tip, creating a counterweight to the wind's force on the sails.

The rudder is the horizontal plate at the back of the boat that is used to steer by setting a course and maintaining it. It is connected to the helm or tiller.

Tiller or Helm

• The helm is simply the nautical term for the wheel.
• The tiller is simply the nautical term for the steering stick.

The tiller or helm is attached to the rudder and is used to steer the boat. Most smaller sailboats (below 30') have a tiller, most larger sailboats use a helm. Large ocean-going vessels tend to have two helms.

The cockpit is the recessed part in the deck where the helmsman sits or stands. It tends to have some benches. It houses the outside navigation and systems interfaces, like the compass, chartplotter, and so on. It also houses the mainsheet traveler and winches for the jib. Most boats are set up so that the entire vessel can be operated from the cockpit (hence the name). More on those different parts later.

Most larger boats have some sort of roofed part, which is called the cabin. The cabin is used as a shelter, and on cruising sailboats you'll find the galley for cooking, a bed, bath room, and so on.

The mast is the pole on a sailboat that holds the sails. Sailboats can have one or multiple masts, depending on the mast configuration. Most sailboats have only one or two masts. Three masts or more is less common.

The boom is the horizontal pole on the mast, that holds the mainsail in place.

The sails seem simple, but actually consist of many moving parts. The parts I list below work for most modern sailboats - I mean 90% of them. However, there are all sorts of specialty sails that are not included here, to keep things concise.

The mainsail is the largest sail on the largest mast. Most sailboats use a sloop rigging (just one mast with one bermuda mainsail). In that case, the main is easy to recognize. With other rig types, it gets more difficult, since there can be multiple tall masts and large sails.

If you want to take a look at the different sail plans and rig types that are out there, I suggest reading my previous guide on how to recognize any sailboat here (opens in new tab).

Sail sides:

• Leech - Leech is the name for the back side of the sail, running from the top to the bottom.
• Luff - Luff is the name for the front side of the sail, running from the top to the bottom.
• Foot - Foot is the name for the lower side of the sail, where it meets the boom.

Sail corners:

• Clew - The clew is the lower aft (back) corner of the mainsail, where the leech is connected to the foot. The clew is attached to the boom.
• Tack - The tack is the lower front corner of the mainsail
• Head - The head is the top corner of the mainsail

Battens are horizontal sail reinforcers that flatten and stiffen the sail.

Telltales are small strings that show you whether your sail trim is correct. You'll find telltales on both your jib and mainsail.

The jib is the standard sized headsail on a Bermuda Sloop rig (which is the sail plan most modern sailboats use).

As I mentioned: there are all kinds, types, and shapes of sails. For an overview of the most common sail types, check out my Guide on Sail Types here (with photos).

The rigging is what is used to attach your sails and mast to your boat. Rigging, in other words, mostly consists of all kinds of lines. Lines are just another word for ropes. Come to think of it, sailors really find all kinds of ways to complicate the word rope ...

Two types of rigging

There are two types of rigging: running and standing rigging. The difference between the two is very simple.

• The running rigging is the rigging on a sailboat that's used to operate the sails. For example, the halyard, which is used to lower and heave the mainsail.
• The standing rigging is the rigging that is used to support the mast and sail plan.

Standing Rigging

Here are the different parts that belong to the standing rigging:

• Forestay or Headstay - Line or cable that supports the mast and is attached to the bow of the boat. This is often a steel cable.
• Backstay - Line or cable that supports the mast and is attached to the stern of the boat. This is often a steel cable.
• Sidestay or Shroud - Line or cable that supports the mast from the sides of the boat. Most sailboats use at least two sidestays (one on each side).
• Spreader - The sidestays are spaced to steer clear from the mast using spreaders.

Running Rigging: different words for rope

Ropes play a big part in sailing, and especially in control over the sails. In sailboat jargon, we call ropes 'lines'. But there are some lines with a specific function that have a different name. I think this makes it easier to communicate with your crew: you don't have to define which line you mean. Instead, you simply shout 'mainsheet!'. Yeah, that works.

Running rigging consists of the lines, sheets, and hardware that are used to control, raise, lower, shape and manipulate the sails on a sailboat. Rigging varies for different rig types, but since most sailboats are use a sloop rig, nearly all sailboats use the following running rigging:

• Halyards -'Halyard' is simply the nautical name for lines or ropes that are used to raise and lower the mainsail. The halyard is attached to the top of the mainsail sheet, or the gaffer, which is a top spar that attaches to the mainsail. You'll find halyards on both the mainsail and jib.
• Sheets - 'Sheet' is simply the nautical term for lines or ropes that are used to set the angle of the sail.
• Mainsheet - The line, or sheet, that is used to set the angle of the mainsail. The mainsheet is attached to the Mainsheet traveler. More on that under hardware.
• Jib Sheet - The jib mostly comes with two sheets: one on each side of the mast. This prevents you from having to loosen your sheet, throwing it around the other side of the mast, and tightening it. The jib sheets are often controlled using winches (more on that under hardware).
• Cleats are small on-deck hooks that can be used to tie down sheets and lines after trimming them.
• Reefing lines - Lines that run through the mainsail, used to put a reef in the main.
• The Boom Topping Lift is a line that is attached to the aft (back) end of the boom and runs to the top of the mast. It supports the boom whenever you take down the mainsail.
• The Boom Vang is a line that places downward tension on the boom.

There are some more tensioning lines, but I'll leave them for now. I could probably do an entire guide on the different sheets on a sailboat. Who knows, perhaps I'll write it.

This is a new segment, that I didn't mention before. It's a bit of an odd duck, so I threw all sorts of stuff into this category. But they are just as important as all the other parts. Your hardware consists of cleats, winches, traveler and so on. If you don't know what all of this means, no worries: neither did I. Below, you'll find a complete overview of the different parts.

Deck Hardware

Just a brief mention of the different deck hardware parts:

• Pulpits are fenced platforms on the sailboat's stern and bow, which is why they are called the bow pulpit and stern pulpit here. They typically have a solid steel framing for safety.
• Stanchons are the standing poles supporting the lifeline , which combined for a sort of fencing around the sailboat's deck. On most sailboats, steel and steel cables are used for the stanchons and lifelines.

Mainsheet Traveler

The mainsheet traveler is a rail in the cockpit that is used to control the mainsheet. It helps to lock the mainsheet in place, fixing the mainsails angle to the wind.

If you're interested in learning more about how to use the mainsheet traveler, Matej has written a great list of tips for using your mainsheet traveler the right way . It's a good starting point for beginners.

Winches are mechanical or electronic spools that are used to easily trim lines and sheets. Most sailboats use winches to control the jib sheets. Modern large sailing yachts use electronic winches for nearly all lines. This makes it incredibly easy to trim your lines.

You'll find the compass typically in the cockpit. It's the most old-skool navigation tool out there, but I'm convinced it's also one of the most reliable. In any way, it definitely is the most solid backup navigator you can get for the money.

Want to learn how to use a compass quickly and reliably? It's easy. Just read my step-by-step beginner guide on How To Use a Compass (opens in new tab .

Chartplotter

Most sailboats nowadays use, besides a compass and a map, a chartplotter. Chartplotters are GPS devices that show a map and a course. It's very similar to your normal car navigation.

Outboard motor

Most sailboats have some sort of motor to help out when there's just the slightest breeze. These engines aren't very big or powerful, and most sailboats up to 32' use an outboard motor. You'll find these at the back of the boat.

Most sailboats carry 1 - 3 anchors: one bow anchor (the main one) and two stern anchors. The last two are optional and are mostly used by bluewater cruisers.

I hope this was helpful, and that you've gained a good understanding of the different parts involved in sailing. I wanted to write a good walk-through instead of overwhelming you with lists and lists of nautical terms. I hope I've succeeded. If so, I appreciate any comments and tips below.

I've tried to be as comprehensive as possible, without getting into the real nitty gritty. That would make for a gigantic article. However, if you feel I've left something out that really should be in here, please let me know in the comments below, so I can update the article.

I own a small 20 foot yacht called a Red witch made locally back in the 70s here in Western Australia i found your article great and enjoyed reading it i know it will be a great help for me in my future leaning to sail regards John.

David Gardner

İ think this is a good explanation of the difference between a ”rope” and a ”line”:

Rope is unemployed cordage. In other words, when it is in a coil and has not been assigned a job, it is just a rope.

On the other hand, when you prepare a rope for a specific task, it becomes employed and is a line. The line is labeled by the job it performs; for example, anchor line, dock line, fender line, etc.

Hey Mr. Buckles

I am taking on new crew to race with me on my Flying Scot (19ft dingy). I find your Sailboat Parts Explained to be clear and concise. I believe it will help my new crew learn the language that we use on the boat quickly without being overwhelmed.

PS: my grandparents were from Friesland and emigrated to America.

Thank you Shawn for the well written, clear and easy to digest introductory article. Just after reading this first article I feel excited and ready to set sails and go!! LOL!! Cheers! Daniel.

steve Balog

well done, chap

Great intro. However, the overview diagram misidentifies the cockpit location. The cockpit is located aft of the helm. Your diagram points to a location to the fore of the helm.

William Thompson-Ambrose

An excellent introduction to the basic anatomy and function of the sailboat. Anyone who wants to start sailing should consider the above article before stepping aboard! Thank-you

James Huskisson

Thanks for you efforts mate. We’ve all got to start somewhere. Thanks for sharing. Hoping to my first yacht. 25ft Holland. Would love to cross the Bass Strait one day to Tasmania. 👌 Cheers mate

Alan Alexander Percy

thankyou ijust aquired my first sailboat at 66yrs of age its down at pelican point a beautifull place in virginia usa my sailboat is a redwing 30 if you are ever in the area i wouldnt mind your guidance and superior knowledge of how to sail but iam sure your fantastic article will help my sailboat is wings 30 ft

Thanks for quick refresher course. Having sailed in California for 20+ years I now live in Spain where I have to take a spanish exam for a sailboat license. Problem is, it’s only in spanish. So a lot to learn for an old guy like me.

Very comprehensive, thank you

Your article really brought all the pieces together for me today. I have been adventuring my first sailing voyage for 2 months from the Carolinas and am now in Eleuthera waiting on weather to make the Exumas!!! Great job and thanks

Helen Ballard

I’ve at last found something of an adventure to have in sailing, so I’m starting at the basics, I have done a little sailing but need more despite being over 60 life in the old dog etc, thanks for your information 😊

Barbara Scott

I don’t have a sailboat, neither do l plan to literally take to the waters. But for mental exercise, l have decided to take to sailing in my Bermuda sloop, learning what it takes to become a good sailor and run a tight ship, even if it’s just imaginary. Thank you for helping me on my journey to countless adventures and misadventures, just to keep it out of the doldrums! (I’m a 69 year old African American female who have rediscovered why l enjoyed reading The Adventures of Robert Louis Stevenson as well as his captivating description of sea, wind, sailboat,and sailor).

Great article and very good information source for a beginner like me. But I didn’t find out what I had hoped to, which is, what are all those noisy bits of kit on top of the mast? I know the one with the arrow is a weather vane, but the rest? Many thanks, Jay.

Louis Cohen

The main halyard is attached to the head of the mainsail, not the to the mainsheet. In the USA, we say gaff, not gaffer. The gaff often has its own halyard separate from the main halyard.

Other than that it’s a nice article with good diagrams.

A Girl Who Has an Open Sail Dream

Wow! That was a lot of great detail! Thank you, this is going to help me a lot on my project!

Hi, good info, do u know a book that explains all the systems on a candc 27,

Emma Delaney

As a hobbyist, I was hesitant to invest in expensive CAD software, but CADHOBBY IntelliCAD has proven to be a cost-effective alternative that delivers the same quality and performance.

https://www.cadhobby.com/

Leave a comment

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The Ultimate Guide to Sail Types and Rigs (with Pictures)

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40 Sailing Phrases to Know

By: American Sailing American Sailing , Nautical Trivia , Sailing Fun , Sailing History

In 1983, the American Sailing Association was founded by Lenny Shabes. Over the years, hundreds of thousands of sailors have become certified sailors with the ASA sailing curriculum. This year, we celebrate 40 years as the leading sailing education entity in the United States. So when you get out on the water, you can be sure that ASA-certified sailors are sailing safely and confidently.  

Sailors have a way of speaking, and the sport has its own language. Some sailing phrases are common in everyday language, while others are only really used on a sailboat. The ones common in our everyday language have a nautical origin that will make you a more enlightened sailor, as well. The ones used only on a sailboat? Well, the sailing lifestyle lends itself to a specific language to describe situations and offer comedic relief when we are at the mercy of the conditions, and those will make you smarter and more adaptable in real life as well.

With that, we want to offer 40 sailing phrases you should know, some of which you may already be acquainted with.

Enjoy these sailing phrases, and may the best sailor win at nautical trivia night!

• Batten Down the Hatches – a phrase used to prepare for a storm, or in everyday language, prepare for a difficult upcoming situation.
• Aye Aye, Captain – a form of ”aye aye, sir”. It literally means “yes, yes” and is used in the military to show that the person who says it will follow an order that has been given and will follow it before doing anything else. It also shows the person knows the order and what it is requiring him or her to do.
• Fair Winds and Following Seas – a phrase derived from two original sources that has become a nautical blessing used to wish someone good luck on their journey. Fair winds speak to favorable winds that will carry you home, and following seas speak to the direction of the waves generally pushing you in the direction of your heading.
• Sheet Happens – a humorous phrase used when something goes wrong on a sailing trip. Sheets are the lines that trim sails.
• Ship-shape and Bristol Fashion – a term used to describe something that is in good order or condition. The word is of nautical origin, based on the obligation of a sailor to keep his or her quarters arranged neatly and securely due to the limited space typically allotted to service members aboard ship, and against turbulence at sea. Bristol fashion refers to the port’s days as a bustling port of trade.
• All Hands on Deck – During a storm or other crises, the boatswain’s cry of “all hands on deck” signaled the entire crew to handle the sail. These days it is an entreaty or order for everyone to pitch in and help with a problem or reach a goal.
• Shiver Me Timbers – in everyday language, an exclamation of surprise or excitement. In nautical terms, a reference to the timbers, which are the wooden support frames of a sailing ship. In heavy seas, ships would be lifted up and pounded down so hard as to “shiver” the timbers, startling the sailors.
• Walk the Plank – Sailors, usually pirates, set a plank that would hang off the ship’s side and made the punished sailors walk to the end and meet their death in the ocean. Today it’s a metaphor for receiving a punishment or facing a situation beyond one’s control.
• Keel Over – a term used to describe a boat tipping over on its side so far that it capsizes or turns turtle. In every day language, it refers to someone tumbling or falling over.
• Even Keel – The phrase even keel describes a ship that is level and balanced with its keel perpendicular to the surface of the water. Figuratively it has come to mean a calm, stable state of mind. The opposite is to keel over meaning to capsize.
• Taken Aback – A ship is pushed backward when violent winds or a careless helmsman cause the sails to blow rearward against the mast. This sudden predicament could snap the mast or severely damage the rigging. As a figure of speech, taken aback means to be astonished by some unwelcome occurrence.
• Three Sheets to the Wind – a term used to describe someone who is drunk. The sheets are the lines that control the sails on a sailboat. If the lines are not secured — particularly the three which are the two jib sheets and the mainsheet — the sails flop in the wind, and the ship loses headway and control, like a drunk person.
• Between the Devil and the Deep Blue Sea – The “devil” was the topmost plank of the ship’s side closest to the deck. Caulking this long seam in the tight space was a grueling task. One false move and a sailor could find himself plunging into the water. Today someone between the devil and the deep blue sea is in a lousy situation with no good options.
• Let the Cat Out of the Bag – A whip composed of nine pieces of cord with three knots at the striking end, the cat-o’-nine-tails was one of the authorized instruments of punishment in the British Navy until 1881. It was kept in a cloth bag. A sailor who reported the misdeeds of another let the cat out of the bag.
• Scuttlebutt – a nautical term for a water dispenser, but also a term used for gossip or rumors on board a ship. A “butt” was a large wooden drinking water cask where sailors gathered around and swapped rumors and stories. On long voyages, water was rationed by carving a hole in the cask’s side so that it could only be half filled. A cask with a hole was “scuttled.” Not much has changed except we now gossip around a water cooler.
• Anchors Aweigh – a phrase used to describe the moment when an anchor is lifted from the seabed; colloquially it also has come to mean the beginning of a journey.
• A Bone in Her Teeth – a term used to describe a boat that is moving fast through the water creating a prominent bow wave that looks similar to a dog with a bone in its mouth. Has also come to mean someone who is in a hurry.
• Tide Over – To tide over was the technique of alternating between sailing and anchoring when battling headwinds and unfavorable tides. This allowed a boat to hold its position until conditions improved. The term now describes enabling someone to get through a difficult period, most commonly by lending money, or with a child, to give a snack to tide them over until dinner.
• Sailing Close to the Wind – a term used to describe sailing as close to the direction of the wind as possible (any further and you would be in irons and unable to progress). Figuratively, this phrase means to be on the verge of doing something illegal or improper.
• Cast Off – a term used to describe releasing a mooring line or anchor so a vessel can set sail; in everyday language means to “set free”, for obvious reasons!
• Dead Reckoning – used in a navigation sense primarily; a method of navigation based on estimating a ship’s position using previous positions and estimated speed and direction of travel
• Helm’s Alee – a command used to turn the boat away from the wind, or tack. Primarily used on a sailboat, but also an American rock band that started in the early 2000’s in Seattle.
• Square-rigged, and Squared Away – a term used to describe a ship with square sails. To be squared away, a square-rigged ship had its yards (horizontal bars that held up the sail) positioned at right angles to the deck to best catch the wind. Squared away now means to put things in order or a state of readiness.
• A Shot Across the Bow – in everyday language, a warning or threat issued to someone. In the 18th century, navies forced oncoming ships to identify themselves by firing a cannon shot over their bow. If the approaching ship hoisted enemy colors an attack might ensue. Traditionally warships had the right to disguise themselves by sailing under neutral or false flags, but once they went into battle they were required to fly their country’s true colors.
• Crow’s Nest – a platform located high on a mast used as a lookout point. The term is sometimes used metaphorically for the topmost structures in buildings, towers, etc.
• Jibe Ho – a command spoken when jibing, and the sailboat is heading downwind and across the wind. It is a warning to sit down or be clear of the boom before it swings!
• Lower the Boom – The boom is the long horizontal pole that controls the movement of the mainsail. It can deliver sailors a knockout blow if it swings wildly or collapses in heavy weather. These days the phrase means to put a stop to, chastise, or rebuke.
• Headwinds – winds blowing in the opposite direction of the ship’s movement; has also come to mean resistance or opposition to a plan, often referred to as “economic headwinds” in business.
• Sea Legs – the ability to adjust to the motion of a ship and maintain balance; To “have one’s sea legs” is to be able to walk calmly and steadily on a tossing ship, or to become accustomed to a new or strange situation
• Run Aground; or High and Dry – to be run aground is when the bottom of the boat hits the sea floor and stops the boat. For a ship to run aground in a receding tide is to be left high and dry. Getting stuck with the check when everyone else has taken off is also to be left high and dry.
• Dead in the Water – when there is no wind and the water is completely still, giving no chance of any sailing. The phrase also means a proposal or plan with zero chance of success.
• Fathom – a unit of measurement for depth, equal to six feet. This nautical unit of measurement is based on the span of a man’s outstretched arms. The word comes from the Old English “faedem,” to embrace. Sailors measured ocean depths, anchor chains, ropes, and cables in fathoms. Although marines eventually abandoned fathoms for meters, we onshore still reach for the word fathom to express our ability to comprehend, grasp, or get to the bottom of things.
• Gunwale – the upper edge of the side of a boat, pronounced “gunnel”, named for where the guns on a ship would sit. To be “full to the gunnels” means to be completely full.
• In Irons – A sailing vessel is “in irons” when she is trapped in the “No Go Zone”, unable to bear away and begin sailing. The term dates from when criminals aboard old sailing ships were secured to the deck with leg-irons, unable to move.
• Kedge – a smaller anchor used to move the ship slowly in a desired direction. Used primarily in nautical situations, but can be adapted to mean a clever way of moving in a direction when the obvious method won’t work.
• The Cut of One’s Jib – “Jib” is the name of the foresail that controls the general performance of a ship. In everyday life, it also means the way one looks or conducts themselves (usually negative).
• Cup of Joe – The days of rum, beer, and officers’ personal wine supply dried up with the appointment of Josephus Daniels as Secretary of the Navy. In 1914 this stern Methodist and prohibitionist banned “…the use or introduction for drinking purposes of alcoholic liquors on board any naval vessel, or within any navy yard or station.” As a substitute, stewards increased orders for coffee. Naval lore has it that the disgruntled sailors tagged the poor substitute “cup of Josephus Daniels,” and later the shorter “cup of Joe.” That’s one theory, anyway, but one thing we know — any day, aboard a ship or not, deserves its properly caffeinated start!
• Groundswell – Deep ocean waves grow larger as they move over uneven seabeds and are felt as surface undulations. Colloquially, the term describes a widespread surge of public opinion.
• It’s an Ill Wind that Blows No Good – While a sailor could be frustrated by an unfavorable wind, it might be a great wind for a sailor going another direction. This translates into everyday life to mean that what’s bad for one person may be good for another.
• Know the Ropes – Old, tall ships had miles of rigging. Today’s sailboats also have quite a lot of line. Each serves a purpose, and it’s critical for sailors to correctly identify each one. Securing or unlashing the wrong line at the wrong time could be catastrophic, or at least cause you to lose the regatta. In sailing and in real life, to be well versed and familiar is to know the ropes.

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