/ Dictionary / Index W white knight: Meaning and Definition of Find definitions for: white' knight' Pronunciation: [key] a hero who comes to the rescue. a beleaguered champion who fights heroically for a cause, as in politics. a company that comes to the rescue of another, as to prevent a takeover. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. white kerria white-knuckle Related Content Daily Word Quiz: denizen Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language