A boat is a water craft, a vessel that floats and can be propelled through the water. If you buy a private island, you'll need a boat to get there.

A lobster boat travels across ocean bays powered by a small motor, and a sail boat is moved by the wind hitting its sails at a particular angle. A much smaller type of boat is a gravy boat, a boat-shaped serving dish that holds a sauce. Boat is sometimes used as a verb, meaning "to go out in a boat." The Old English root is bat, "ship or vessel," from a Germanic source.

Definitions of boat
  1. noun
    a small vessel for travel on water
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    a boat built by Noah to save his family and animals from the flood
    barge, flatboat, hoy, lighter
    a flatbottom boat for carrying heavy loads (especially on canals)
    a small boat that ferries supplies and commodities for sale to a larger ship at anchor
    canal boat, narrow boat, narrowboat
    a long boat that carries freight and is narrow enough to be used in canals
    ferry, ferryboat
    a boat that transports people or vehicles across a body of water and operates on a regular schedule
    a boat equipped to fight fires on ships or along a waterfront
    long narrow flat-bottomed boat propelled by sculling; traditionally used on canals of Venice
    guard boat
    a boat that is on guard duty (as in a harbor) around a fleet of warships
    a small shallow-draft boat carrying mounted guns; used by costal patrols
    any of various Chinese boats with a high poop and lugsails
    the largest boat carried by a merchant sailing vessel
    small fishing boat rigged with one or more lugsails
    Mackinaw boat, mackinaw
    a flat-bottomed boat used on upper Great Lakes
    mail boat, mailboat, packet, packet boat
    a boat for carrying mail
    motorboat, powerboat
    a boat propelled by an internal-combustion engine
    pilot boat
    a boat to carry pilots to and from large ships
    police boat
    a boat used by harbor police
    an open flat-bottomed boat used in shallow waters and propelled by a long pole
    river boat
    a boat used on rivers or to ply a river
    any of various flat-bottomed boats with sloping ends
    sea boat
    a boat that is seaworthy; that is adapted to the open seas
    small boat
    a boat that is small
    a boat propelled by a steam engine
    a boat that can be launched or landed in heavy surf
    cutter, pinnace, ship's boat, tender
    a boat for communication between ship and shore
    towboat, tower, tug, tugboat
    a powerful small boat designed to pull or push larger ships
    cabin cruiser, cruiser, pleasure boat, pleasure craft
    a large motorboat that has a cabin and plumbing and other conveniences necessary for living on board
    small and light boat; pointed at both ends; propelled with a paddle
    a ferry that transports motor vehicles
    a small light flimsy boat
    a small rounded boat made of hides stretched over a wicker frame; still used in some parts of Great Britain
    dinghy, dory, rowboat
    a small boat of shallow draft with cross thwarts for seats and rowlocks for oars with which it is propelled
    a barge (or a vessel resembling a barge) that is used for dredging
    tender that is a light ship's boat; often for personal use of captain
    long and light rowing boat; especially for racing
    a barge that is designed and equipped for use as a dwelling
    river boat with a shallow draught and a keel but no sails; used to carry freight; moved by rowing or punting or towing
    a motorboat with an open deck or a half deck
    a strong sea boat designed to rescue people from a sinking ship
    outboard, outboard motorboat
    a motorboat with an outboard motor
    (nautical) a floating structure (as a flat-bottomed boat) that serves as a dock or to support a bridge
    racing boat
    a boat propelled by oarsmen and designed for racing
    a barge carrying bulk materials in an open hold
    a river steamboat on which theatrical performances could be given (especially on the Mississippi River)
    any of various small boats propelled by oars or by sails or by a motor
    a fast motorboat
    scooter, sea scooter, water scooter
    a motorboat resembling a motor scooter
    a long narrow boat designed for quick turning and use in rough seas
    Norfolk wherry, wherry
    sailing barge used especially in East Anglia
    a ship's small boat (usually rowed by 4 or 6 oars)
    a light, narrow recreational boat propelled with a double-bladed paddle
    type of:
    vessel, watercraft
    a craft designed for water transportation
  2. verb
    ride in a boat on water
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    ride in a motorboat
    travel in a yacht
    travel on water propelled by wind
    propel with oars
    travel by canoe
    travel in a small canoe
    propel with a paddle
    row at a particular rate
    feather, square
    turn the oar, while rowing
    feather, square
    turn the paddle; in canoeing
    sail before the wind
    luff, point
    sail close to the wind
    sail to the windward of
    sail with much tacking or with difficulty
    rack, scud
    run before a gale
    sail closer to the wind than
    tack, wear round
    turn into the wind
    wear ship
    turn away from the wind
    change course, gybe, jib, jibe
    shift from one side of the ship to the other
    operate when rowing a boat
    propel with sculls
    type of:
    be carried or travel on or in a vehicle
  3. noun
    a dish (often boat-shaped) for serving gravy or sauce
    synonyms: gravy boat, gravy holder, sauceboat
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    argyle, argyll
    a covered gravy holder of silver or other metal containing a detachable central vessel for hot water to keep the gravy warm
    type of:
    a piece of dishware normally used as a container for holding or serving food
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