| n. | 1. | A large cask; an oblong vessel bulging in the middle, like a pipe or puncheon, and girt with hoops; a wine cask. |
| 2. | (Brewing) A fermenting vat. |
| 3. | A certain measure for liquids, as for wine, equal to two pipes, four hogsheads, or 252 gallons. In different countries, the tun differs in quantity. |
| 4. | (Com.) A weight of 2,240 pounds. See Ton. |
| 5. | An indefinite large quantity. |
| 6. | A drunkard; - so called humorously, or in contempt. |
| 7. | (Zool.) Any shell belonging to Dolium and allied genera; - called also tun-shell. |
| v. t. | 1. | To put into tuns, or casks. |