Boatswain. A supernumerary or idler, generally attached to the mate's watch, and holding considerable authority over the crew.
Bouilli tin. Any tin that contains, or has contained, preserved meat.
Bows. The forward extremity of a ship.
Brace-blocks. Pulleys through which the braces travel.
Braces. Ropes by which the yards are inclined forward or aft.
Bumboat pan. Soft bread sold by the bumboat man, a kind of sea costermonger who trades with ships in port.
Bunt. Those cloths of a square sail which are nearest to the mast when the sail is set. The central portion of a furled square sail. The human abdomen (figuratively).
Buntlines. Ropes which help to confine square sails to the yards in the operation of furling.
Chocks. Wooden stands on which the boats rest.
Cleats. Iron or wooden contrivances to which ropes may be secured.