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Aboard- on or in a vessel

Abreast- when a vessel runs alongside of another vessel

Adrift- a vessel floating with the wind and tide

Aground- a vessel that is touching bottom and is unable to move

Aircraft Carrier- Carries airplanes allows planes to takeoff from and land on the ship.

Anchor- a heavy object attached to a vessel by a cable or rope and cast overboard to keep the

Vessel in place either by its weight or its flukes, which grip the bottom

Beam- the width of the vessel at its widest point

Boom- a large spear extending from a mast to hold or extend the foot of a sail

Bow- the forward end of the vessel

Bulk Carrier- Carries bulk goods, often grains.

Bulkhead- wall

Bulwarks- the raised portion of the sides of a vessel around the main deck to prevent crew, cargo, and passengers from being washed overboard<

Cable Layer Ship- Ship which lays cable on the ocean floor

Capsize- to upset or overturn

Car Carrier- Transports cars

argo Ship- Any ship which transports cargo

Cleat- a fitting of wood or metal with two horns used for securing lines

Channel- a broad straight, especially one that connects two seas. For example: the English Channel
Chemical Tanker- Transports tanks of chemicals
Container Ship- Ship that transports containers
Corvette- Small, maneuverable, lightly armed war ship
Coxswain- person in charge while on a lifeboat
Crane Support Ships- Ships with cranes attached; help other ships load and unload cargo
Crest- the top of a wave
Cruise Ship- Ship people go on for vacations
Dead Reckoning- the practice of estimating a vessel's position by considering courses and distances made after departure from a known position
Derelict- a vessel abandoned or forsaken on the high seas
Dock- a platform, landing area that ships can pull up to to load and unload cargo.
Draft- the depth of water required to float a vessel
Dredges- Retrieves minerals and other materials from the bottom of the ocean
Drilling Vessels - Vessels which can drill for oil while at sea.
Drogue- a type of sea anchor used to stabilize a vessel in dangerous seas
Fathom- a measurement of depth, one fathom is equal to six feet
Ferries- Transports cars short distances
Fire Boats- Boats that help put out fires on ships
Fish Catching Vessels- Vessels which Lay down nets to collect fish
Flare- a pyrotechnic device used for attracting attention or indicating distress
Flounder- to fill with water and sink at sea
Galley- the area on a vessel containing the cooking facilities
Gangway- a passage along either side of the ship's upper deck; an opening on the side of a ship where passengers may board
Hatch- a door in the roof or floor, often above a cargo hold
Headway- a vessel's forward movement
Heave- to pull on
Helm- the steering mechanism of a vessel
Hoist- to raise up
Hold- the lower interior part of a ship where cargo is held

Hydrographic Survey- Testing done on the nature of waves.
Ice Breaker- Designed to break up ice for travel in Polar Regions
Jettison- throwing cargo and other materials overboard to lighten a vessel and help it remain afloat
Junk- Chinese sailing vessel
Keel- the continuous section of a vessel running from the bow (front) to the stern (back) on which the vessel is built, the backbone of the vessel
Knot- a measurement of speed equal to one nautical mile (6,080 ft. per hour), one knot is equal to one and one seventh miles per hour and it is the length of one minute of longitude at the equator
Leeward- the side of the vessel opposite the side where the wind is blowing

Liquefied Natural Gas Carrier - Vessels that transport fuel in the form of liquefied natural gas. In order to keep the gas in liquid form, the tanks are kept at a temperature of -260 degrees Fahrenheit. LNGs are required to have the gas surrounded by at least two tanks in case the first one breaks. They aren't allowed in many ports because of their large size and the huge fire hazard they pose.

Lumber Carriers- Carries large amounts of lumber
Marry- to tie two lines together
Nautical Mile- the standard unit of measurement for maritime navigation which equals 6,080 feet and represents one minute of latitude
Ocean Liner- Passenger ship, crosses oceans; was supplanted by airlines
Oceanographic Research- Ship for the purpose of marine research. Often studies marine life, tides, waves, plant life, and weather at sea.
Ocean Mining Vessels- Vessels with the ability to mine for resources from the sea
Offshore Supply Boats- Supplies transportation services to offshore drilling rigs
Oil Tanker- Transports oil in large tanks
Panama - Ship with maximum dimensions for fitting through the Panama Canal. 1000ft. long, 110ft. wide, 85 ft. deep
Pilot Boats- Helps ships navigate in and out of harbors
Port Side- the left side of a vessel when facing forward
Quay- a dock parallel to the shoreline and accommodating vessels on one side only
Refrigerated Ship- Ship with cargo that must be refrigerated. Usually foodstuffs, fruit, fish,
Rolling- the motion of a ship swinging from side to side caused by the pressure of the waves on the side if the ship
Roll-on Roll-off- Transports wheeled cargo.
Seaway- the navigable portion of the sea
Seaworthy- able to withstand the dangers of the sea
Sheer- the curvature of a ship's deck from bow to stern
Sounding- the act of measuring depth of water by using a lead line or a fathometer
Starboard- the right side of a vessel when facing forward
Stern- the back end of a vessel
Sternway- the backward motion of a vessel when it is carried or propelled backward
Submarine- Designed to travel mainly underwater.
Swell- a wave
Tender- Services another type of air or sea vessel
Tugboat- Pulls other boats
Veer- to change the direction of a vessel in reference to the wind
Windward- the side of the vessel towards which the wind is blowing