1. (n.) One of the parts into which an enclosed portion of space is divided, as by partitions, or lines; as, the compartments of a cabinet, a house, or a garden.

2. (n.) One of the sections into which the hold of a ship is divided by water-tight bulkheads.

alcove bay below between-decks boiler room booth box brig bunker cabin caboose camboose cavity cell cellule chamber chart room conning tower crib crypt cubicle division enclosed space engine room forecastle forepeak galley head hold hole hollow lazaret locker manger niche part partition pew pilothouse quarters radio room roundhouse sail loft section sick bay slot space stall stateroom stokehold topside vault wardroom