an open wooden vessel formed with staves, bottom, and hoops; a kind of short cask, half barrel, or firkin, usually with but one head, -- used for various purposes.-the amount which a tub contains, as a measure of quantity; as, a tub of butter; a tub of camphor, which is about 1 cwt., etc.-any structure shaped like a tub: as, a certain old form of pulpit; a short, broad boat, etc., -- often used jocosely or opprobriously.-a sweating in a tub; a tub fast.-a small cask; as, a tub of gin.-a box or bucket in which coal or ore is sent up a shaft; -- so called by miners.-to plant or set in a tub; as, to tub a plant.-to make use of a bathing tub; to lie or be in a bath; to bathe.