/ Dictionary / Index W winwin: Meaning and Definition of Find definitions for: win-win Pronunciation: (win'win'), [key] advantageous to both sides, as in a negotiation: a win-win proposal; a win-win situation. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Wintun winy Related Content Daily Word Quiz: sinister Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language