Tun (unit) The tun (Old English: tunne, Latin: tunellus, Medieval Latin: tunna) is an English unit of liquid volume (not weight), used for measuring wine, [1] oil or honey.

The meaning of TUN is a large cask especially for wine.

Jan 2, 2026 · tun (plural tuns) A large cask; an oblong vessel bulging in the middle, like a pipe or puncheon, and girt with hoops; a wine cask. (See a diagram comparing cask sizes.) (brewing) …

There are 12 meanings listed in OED's entry for the noun tun, two of which are labelled obsolete. See ‘Meaning & use’ for definitions, usage, and quotation evidence.

5 days ago · Researchers at MD Anderson have identified a tumor-suppressing protein that is shut down by excess glutamine in head and neck … A new study of 16- to 24-year-olds …

TUN definition: a large cask for holding liquids, especially wine, ale, or beer. See examples of tun used in a sentence.

tun (tun), n., v., tunned, tun•ning. n. a large cask for holding liquids, esp. wine, ale, or beer. Weights and Measures a measure of liquid capacity, usually equivalent to 252 wine gallons. …

`My idea of tun quite definitely doesn't include looking back at Darcy through rose-tinted spectacles. 4 senses: 1. a large beer cask 2. a measure of capacity, usually equal to 252 wine …

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Definition of tun noun in Oxford Advanced American Dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more.