well—A depression sometimes built in the decks of yachts or sailboats which is not covered over by a deck. It is often called a cockpit, and is for the convenience and protection of passengers and crew. (2) An opening leading to the lowest part of the bilge, in which the depth of bilge water may be measured.
whaleback—A disappearing type of steamer once common on the American Great Lakes.
whaleboat—A boat that is sharp at both ends and is propelled by oars. This type was used by whalers, and is now common on ships of war, because of its seaworthiness, ease of handling, and sturdiness.
whaler—A ship used in the whaling industry.
wharf—A loading place for vessels.
wheel—When used in its nautical sense, this expression refers to the wheel by which a ship is steered.
wherry—In different localities wherries are of different sizes and designs. They are small boats, generally driven by oars.
windjammer—A slang expression for a person who prefers sails to engines.
windward—That side of a vessel or any other object upon which the wind is blowing is the windward side. An object which is to windward is in the direction from which the wind is blowing.
wind sail—A tube of canvas, with wings of canvas at the top so arranged as to direct fresh air below decks. It is a kind of temporary ventilator.