/ Dictionary / Index T trounce: Meaning and Definition of Find definitions for: trounce Pronunciation: (trouns), [key] — trounced, trounc•ing. to beat severely; thrash. to punish. to defeat decisively. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: trounce (Thesaurus) trough roof troupe Related Content Daily Word Quiz: fervor Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language