/ Dictionary / Index V vat: Meaning and Definition of Find definitions for: vat Pronunciation: (vat), [key] — n., v., vat•ted, vat•ting. —n. a large container, as a tub or tank, used for storing or holding liquids: a wine vat. a preparation containing an insoluble dye converted by reduction into a soluble leuco base. a vessel containing such a preparation. —v.t. to put into or treat in a vat. VAT Pronunciation: [key] See Vat. Pronunciation: [key] Vatican. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: vat (Thesaurus) vasty vat dye Related Content Daily Word Quiz: effervescent Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language