/ Dictionary / Index W winning opening: Meaning and Definition of Find definitions for: win'ning o"pening Pronunciation: [key] — Court Tennis. Court Tennis. the dedans, winning gallery, or grille. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. winning hazard winning post Related Content Daily Word Quiz: cetacean Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language