n.1. a. An open, flat-bottomed vessel, usually round and typically wider than it is deep, used for washing, packing, or storing.
b. The amount that such a vessel can hold.
c. The contents of such a vessel.
2. a. A bathtub.
b. Informal A bath taken in a bathtub.
3. Informal A wide, clumsy, slow-moving boat.
4. a. A bucket used for conveying ore or coal up a mine shaft.
b. A coal car used in a mine.