Breadcrumb Home > Dictionary > Index T tun: Meaning and Definition of Find definitions for: tun Pronunciation: (tun), [key] — n., v., tunned, tun•ning. —n. a large cask for holding liquids, esp. wine, ale, or beer. a measure of liquid capacity, usually equivalent to 252 wine gallons. —v.t. to put into or store in a tun or tuns. Tun. Pronunciation: [key] Tunisia. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: tun (Thesaurus) tumulus tuna TrendingHere are the facts and trivia that people are buzzing about. Hanukkah Origins of the Christmas Holiday Jewish Holidays, 2010-2030 (A.M. 5770-5791) Western Christian Holidays, 2010-2030 Krampus: The Christmas Devil Kwanzaa ✖ Related Content Daily Word Quiz: terraincognita Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language