n. An amended spelling of ton.n. A large cask for holding liquids, especially wine, ale, or beer. See ton.n. Any vessel; a jar.n. In a brewery, the fermenting-vat or -tank.n. A measure of capacity, equal by old statutes to 252 wine-gallons.n. In conchology, a shell of the genus Dolium or family Doliidæ; a tun-shell.n. The upper part of a chimney; also, the chimney itself.To store in a tun or tuns, as wine or malt liquor; hence, to store in vessels of any sort for keeping.To fill as if a tun.To mingle with liquor when it is stored, as for the purpose of flavoring it, or making it keep better.n. An obsolete form of town.