Glossary
of terms you may see on these pages
- ABACK
- - The situation of the sails when their surfaces are pressed aft against the mast by the force of the wind.
- ABAFT
- - (see AFT)
- ABEAM
- - Directly alongside a vessel
- ABOARD
- - The inside of a ship
- ABOUT
- - The situation of a vessel as soon as she has tacked, or changed her course
- ABREAST
- - Two or more vessels, lying with their sides parallel, and their heads equally advanced
- ADMEASUREMENT
- - Relative proportions of a vessel representing her legal measurements and used for documentation
- ADRIFT
- - Broken from her moorings and drifting about without control
- AFLOAT
- - buoyed up by the water
- AFORE
- - All that part of a vessel that lies forward, or near the stem
- AFT (or after)
- - Toward the rear of a vessel
- AFTER END
- - The stern
- AFTERMAST
- - The mast set closest to the stern in a sailing ship carrying multiple masts;
also called the mizzenmast in a three-masted sailing vessel - AFOUL
- - Tangled with, or in a collision with
- AGROUND
- - When a vessel bottom, or any part of it, is lodged in the bottom or on the shore and cannot get off
- A-HULL
- - When all the sails are furled, and her helm is lashed to the lee side; by which she lies nearly with her side to the wind and sea, her head being somewhat inclined of the wind.
- ALEE
- - The position of the helm when it is put down to the lee side.
- ALL IN THE WIND
- - The state of the sails when they are parallel to the direction of the wind, so as to shake or shiver
- AMIDSHIPS (or midships)
- - In the middle portion of the ship, along the line of the keel
- ANCHORAGE
- - Place where a boat may anchor
- ANCHOR LIGHT
- - Single white light hoisted when a vessel is moored.
- ANCHOR WATCH
- - Watch kept when a vessel is moored to a buoy or anchored.
- ATHWARTSHIP
- - Across the ship at right angles to the keel
- AWASH
- - So low in the water that the water is constantly washing across the surface
- AVAST
- - To stop
- AWEIGH
- - When the anchor is off the bottom
- BACK
- - (1) Ship's spine or keel
- BACK THE ANCHOR
- - Carry out a small anchor ahead of the large one, in order to support it in bad ground, and prevent it from loosening
- BACK THE SAILS
- - Arrange them in a situation which will cause the ship to move astern
- BACKED
- - When the wind changes anti-clockwise
- BAGPIPE THE MIZZEN
- - Lay it aback, by bringing the sheet to the mizzen shrouds
- BALLAST TANK
- - Device used to control buoyancy and stability
- BARE POLES
- - Having no sail set
- BARGE
- - vessel having no power of its own and needs to be towed
- BARKENTINE
- - Three masted ship with the foremast square-rigged and the mainmast and mizzenmast fore-and-aft rigged
- BARQUE (BARK)
- - A three to five masted ship with foremast and mainmast square-rigged and mizzenmast fore-and-aft rigged
- BATTEN
- - Strip of wood used to fasten the edge of a tarpaulin to a hatch coaming
- BEAM
- - Width of a vessel at the widest point
- BEAM ENDS
- - Sides of a vessel
- BEATING
- - Going toward the direction of the wind by alternate tacks
- BERTH
- - Cabin or apartment. Anchorage or place alongside a wharf for a vessel.
- BILGE
- - Rounded lower portion of the hull; the recess in the bottom of a ship which all water drains into
- BINNACLE
- - A case or stand containing the ship's compass and a lamp
- BITT
- - Vertical post strongly bolted to the deck and used in making lines fast
- BOAT
- - A ship is called a BOAT on the Great Lakes
- BOAT DECK
- - The deck on which lifeboats are kept
- BOATSWAIN / BOS'N
- - Officer in charge of anchors, rigging, etc.
- BOBSTAY
- - A strong rope, chain or rod that exerts downward tension on a bowsprit to counteract the pull of the foresay
- BOILERHOUSE
- - Passageway above the boilers, immediately under the smokestack
- BOOM
- - Long spar used to extend the horizontal foot of a sail
- BOW
- - Front of a boat
- BOWSPRIT
- - A large mast or piece of timber which stands out from the bow
- BREADTH
- - The width or beam of a vessel at the deck's widest point
- BREAKER
- - A wave that piles up high enough for the top to cascade down the leading face.
- BREAKWALL / BREAKWATER
- - Artificial wall of concrete or stone built to protect a harbor from heavy waves
- BREECHES BUOY
- - Lifesaving device. Lines are fired out to shipwreck with a Lyle Gun and survivors are lifted to safety in a suspended harness, much like a pair of men's breeches.
- BRIDGE WING
- - Narrow walkway that extends outward from both sides of the pilothouse. Used by officers when docking or maneuvering in locks or narrow waterways
- BRIGANTINE/ or BRIG
- - Two masted ship with a square-rigged fore mast and fore-and-aft rigged aft mast
- BROACH TO
- - To turn the vessel broadside to heavy seas, or to lose control of steering in following seas so that the vessel is turned broadside to the waves..
- BULKHEAD
- - Wall like partition that divides a boat's hull
- BULWARKS
- - Wood work around a vessel above deck
- BUNKER
- - Compartment where a boat's fuel is stored
- BUNTLINES
- - Ropes used for raising sails
- BUOY
- - Caution marker
- BUOYANCY
- - The ability to float
- BUTT
- - Where the end of a plank unites with the end of another
- BY THE BOARD
- - When the masts of a vessel fall over the side
- CANALLER
- - Vessel built specially to navigate the locks in the old Welland Canal
- CANT
- - To incline
- CAP
- - A strong, thick block of wood having two large holes through it, the one square, the other round; used to confine the two masts together
- CAPSTAN
- - Device on the deck used for heaving heavy objects such as chains or anchors
- CAT-HEAD
- - Timbers on on a ship's bows, with sheaves in them, by which the anchor is hoisted, after it has been hove up by the cable.
- CAT THE ANCHOR
- - Hook the cat-block to the ring of the anchor, and haul it up close to the cat-head.
- CATWALK
- - Narrow walkway on vessels or piers.
- CAULKING
- - Filling the seams of a ship with oakum.
- CENTERBOARD
- - Thin board able to be lowered through the keel, to counteract the tendency of a sailing ship to move sidways.
- CHADBURN
- - Telegraph device used to signal from the bridge to the engine room
- CHAIN LOCKER
- - Place below the windlass where cables are stowed.
- CHAIN PIPE
- - A pipe through which an anchor chain is passed from the deck to a stowage compartment
- CHOCK
- - Heavy iron fitting through which a rope or hawser is passed
- CLOSE HAULED
- - Steering as close to the course as the wind will allow keeping the weather clew of the upper sail lifting.
- COAMING
- - Verticle edge of a hatch or skylight
- COMBER
- - A long curling wave.
- CONSORT
- - Cargo vessel with no power of its own, towed by a steam barge or a steamer; usually a schooner-barge.
- COSTON FLARE / COSTON SIGNAL
- - Flare or rocket used at night as a distress signal
- CROSS-TREES
- - Wooden or metal bars joined crosswise on the mast to support sails and rigging
- DAVIT
- - Curved iron support boom used to swing out and lower lifeboats
- DEAD LIGHTS
- - A type of window shutter in the stern of the ship, used only in very bad weather
- DEAD RECKONING
- - Calculating the course of a boat from only the speed, heading, and time.
- DECK
- - Flat upper surface of a ship
- DECK HOUSE
- - Shelter built on deck
- DEEP SOUNDING LEAD
- - A heavy lead attached to a line of 100 or more fathoms
- DEPTH
- - A measurement inside the hull from the underside of the deck to the top of the keel
- DERELICT
- - Ship adrift at sea without a crew
- DISPLACEMENT
- - The weight of water a boat displaces
- DOG WATCHES
- - From 4 p.m. to 6 p.m. and 6 p.m. to 8 p.m.
- DONKEY BOILER
- - Produces steam for uses other than propulsion, such as steering or heating.
- DOWN BOUND
- - On the Great Lakes, travelling from the northern lakes toward the southern lakes
- DRAFT
- - The distance from the water line to the bottom of the hull; depth of water required for a vessel to float
- DUNNAGE
- - Loose wood, etc., laid in the bottom of the hold to keep cargo from being damaged
- EARINGS
- - Small ropes used to fasten the upper corners of sails to the yards
- ENSIGN
- - Flag worn at the stern
- EVEN KEEL
- - Having the keel parallel with the horizon
- FANTAIL
- - The stern overhang of a vessel
- FATHOM
- - 1 fathom = 6 feet
- FETCH UP
- - To hold in place, catch hold or run aground
- FIREHOLD
- - Part of the engine room where boiler fires are fed
- FLICKER
- - Carferry term for crew's quarters
- FLYING BRIDGE
- - An area above the pilothouse used as an operating station by officers during good weather
- FOLLOWING SEA
- - Waves coming from behind.
- FORE and AFT
- - Throughout the entire ship's length
- FORECASTLE (FO'C'SLE)
- - Raised part of a boat's bow containing crew quarters
- FOREMAST
- - Mast nearest the bow of a ship
- FOREPEAK
- - Large compartment just aft of the bow in the lower part of the ship
- FORESAIL
- - Principal sail on the foremast of a schooner
- FORESTAY
- - A stay from the foremast to the foredeck or bow of a ship
- FOREWARD
- - Towards the bow of the ship
- FOREYARD
- - The lower yard on the foremast.
- FOUNDER
- - Sink in a disastrous way
- FREEBOARD
- - Amount of a vessel's hull that is out of the water
- FRESHEN
- - Increase in a gale
- FUNNEL
- Smokestack of a vessel
- FURL
- - To wrap or roll a sail close up to the yard or stay and secure it in place
- GAFF
- - The upper spar of a fore-and-aft sail
- GALE
- - A strong wind, rated depending on velocity
moderate (32 - 38 mph), fresh (39 - 46 mph),
strong (47 - 54 mph), whole (55 - 63 mph) - GALLEY
- - Kitchen of a vessel
- GAS BUOY
- - Metal buoy filled with compressed illuminating gas with a lantern on top that burns day and night
- GROSS TONNAGE
- - Total internal capacity of a ship reckoned at 100 cu. ft. per ton
- GUNWALE
- - Upper rail of a boat or vessel
- GYRO-COMPASS
- - Compass operated by means of a gyroscope which indicates true north instead of magnetic north
- HALLIARD / HALYARD
- - Ropes by which the sails are hoisted
- HARD OVER
- - Turning the helm as far as possible
- HATCH
- - The cover for a hatchway
- HATCHWAY
- - Opening in the deck, usually for loading cargo.
- HAWSER
- - Anchor or towing line; cable, chain or heavy rope.
- HEAD SAILS
- - All sails set forward of the foremast and usually secured to the bowsprit.
- HEAVE-TO
- - Stopping a vessel by setting the sails against one another so that she makes no progress.
- HEAVY WEATHER
- - Strong winds with large waves
- HEEL
- - Lean to one side
- HELM
- - Instrument by which the vessel is steered. Includes both the wheel and tiller as one general term
- HELMSMAN
- - (see Wheelsman)
- HOGGED
- - When the ends of a vessel are depressed from the level of the midships portion.
- HOLD, HOLDS
- - Space inside a vessel where cargo or supplies are carried
- HULL
- - Frame or body of a vessel.
- HURRICANE DECK
- - The highest deck.
- INBOARD
- - Inside or toward the center of the ship
- JACOBS LADDER
- - A light rope ladder with wooden steps
- JETTISON
- - To throw cargo or heavy gear overboard in order to lighten a vessel.
- JIB
- - Foremost sail
- JIB BOOM
- - A spar used to extend the length of a bowsprit on sailing ships.
- JIB SAIL
- - Small triangular sail forward of a ship's foremast
- KEDGE
- - Small anchor with an iron stock
- KEEL
- - supporting beam that runs the length of a boat's bottom
- KEELSON
- - Fore and aft timber placed over the keel to strengthen it
- KNEES
- - Angled or curved pieces of iron or wood used to connect the beams of a vessel to her timbers.
- KNOT
- - Naut. a unit of speed of one nautical mile (6,076.12 feet) an hour, approximately 1.15 mph
- LABOUR
- - To roll and pitch heavily.
- LANYARDS
- - Ropes passed through dead eyes for setting up rigging
- LARBOARD
- - Left side, looking towards the head
- LEAD
- - Weight attached to a line for use in sounding
- LEE
- - Direction that the wind is blowing to
- LEEWARD
- - The direction in which the wind is blowing
- LENGTH OVER ALL (LOA)
- - Length of a ship from the stem to the aftermost point of the stern
- Lie-To
- - (See heave-to)
- LIFE PRESERVER
- - A buoyant canvas vest used to keep a person afloat
- LIFESAVER
- - A member of the Lifesaving Service
- LIST
- - tilt to one side
- LIGHTER
- - To remove cargo.
- LUFF
- To put the helm over to bring the vessel closer to the wind. The weather edge of a fore and aft sail.
- LURCH
- - Sudden rolling of a vessel to one side
- MARTINGALE
- - A heavy stay directly below the bowsprit, often the strongest on a ship. Frequently made of chain.
- MASTER
- - Commander or captain of a ship
- MATE
- - Deck officer ranking below the captain
- MESSROOM
- - Dining room of a ship
- MIZZENMAST
- - The third mast back from the bow
- MOLDED DEPTH
- - Distance from the top of the keel to the top of the upper deck amidships
- NAUTICAL MILE
- - One minute of latitude or about 1.15 statute miles
- OAKUM
- - Old rope, untwisted and pulled open, to use for caulking seams of ships.
- PAINTER
- - The line attached to the bow of a yawl boat or dinghy
- PILOTHOUSE
- - small "D" shaped room, having large windows along the curved portion, that sits atop the Texas deck and contains the engine order telegraph, chart table, compass, and steering wheel
- PLIMSOLL MARK
- - Line indicating the maximum depth to which a vessel may be loaded.
- POINT
- - One of 32 equal divisions of the compass card, each point containing 11 degrees, 15 minutes of arc
- PORT SIDE
- - Left side
- PORT TACK
- - Sailing close to the wind with it blowing on the port side of the vessel.
- QUARTERDECK
- - The part of a vessel's upper deck near the stern
- RATLINES
- - Small ropes fastened to the shouds by which the crew go aloft
- REEF
- - Part of a sail, from one eyelet row to another
- To shorten sail by reducing the exposed area
- Chain of rocks lying near the surface of the water - RIGGING
- - All ropes, shrouds, stays, halyards &c. attached to the masts or yards.
- SALTIE
- - Ocean going vessel that visits the Great Lakes
- SCHOONER
- - Sailing vessel having two or more masts, rigged fore and aft.
- SCHOONER-BARGE
- - Sailing vessel that is usually towed
- SCOW
- - Square-built vessel with flat sides and usually a flat bottom.
- SCOW-SCHOONER
- - Schooner with shallow draft and boxy appearance.
- SCREW
- - Propeller
- SCUD
- - To move quickly in a straight line because or as if driven by the wind.
- SCUPPER
- - Holes through which water runs from the deck
- SCUTTLE
- - Hole cut in the deck for use as a doorway
- Hole cut in the hull to make a vessel sink - SEAMS
- - Space between planks in a vessel's hull or deck
- SHEER
- - Longitudinal curve of the deck or gunwale.
- SHEETS
- - Ropes used in working a sail
- SHIP WATER
- - To take in water through a leak or break
- SHOE
- - A false keel
- Projection of the keel abaft the stern frame where the spindle of the rudder rests. - SHROUDS
- - Range of large ropes extended from the mast-heads to both sides of a ship, to support the masts, and enable them to carry sail.
- SLOOP
- - Small sailing craft, usually less than 40 ft in length, with only one mast.
- SOUND
- - To try the depth of water by use of a sounding line, marked at depth ranges.
- SPAR
- - Mast
- SPARDECK
- - Maindeck through which cargo is loaded
- SPRING A MAST, YARD, etc.
- - To crack by strain in a gale, rendering it unsafe for use
- SQUALL
- - Sudden, violent blast of wind
- STARBOARD
- - Right side
- STEERING POLE
- - A light spar extending from the bow of a vessel, which can be raised or lowered, and which is used to aid the wheelsman in navigation
- STEM
- - Piece of timber into which both sides of a ship are united at the fore end
- STERN
- - Rear of a boat
- STRAND
- - To become stuck on a beach or obstruction.
- TACK
- - To work a vessel against the wind by special use of the sails and running on angles first to starboard, then to port
- TAFFRAIL
- - The aftermost railing around the stern of a ship, often ornately carved.
- TEXAS DECK
- - Deck on which the pilothouse is mounted
- TONNAGE
- - 1. Displacement Tonnage: total weight of a vessel
- - 2. Gross Tonnage: a function of the volume of all a boat's internal spaces
- TOPSAIL
- - Second sail above the deck
- TOPGALLANT SAIL
- - Third sail above the deck
- TROUGH
- - The low point between two waves.
- TRYSAIL
- - Fore-and-aft sail set with a boom and gaff mounted on a small mast below the lower mast
- TURN TURTLE
- - Capsize
- WARP
- - Move a vessel with the aid of a rope made fast to a fixed object
- WEATHER DECK
- - Deck having no overhead protection
- WEATHER RAIL
- - The boat rail on the up wind side of the boat. The higher rail
- WHEELSMAN / WHEELSMEN
- - As the name implies, the person or persons whose usual job it is to steer the vessel
- WINDLASS
- - A winch, esp. one worked by a crank
- WINDLASS ROOM
- - triangular space enclosed within the bow of a vessel where the anchor windlasses are located
- YAWL
- - Small rowboat or lifeboat