/ Dictionary / Index T turncoat: Meaning and Definition of Find definitions for: turn•coat Pronunciation: (tûrn'kōt"), [key] — n. a person who changes to the opposite party or faction, reverses principles, etc.; renegade. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: turncoat (Thesaurus) turn button turndown Related Content Daily Word Quiz: eureka Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language