/ Dictionary / Index C champignon: Meaning and Definition of Find definitions for: cham•pi•gnon Pronunciation: (sham-pin'yun or, esp. Brit., cham- Fr. shän-pē-nyôn'), [key] — pl. -pi•gnons mushroom (defs. 1, 2). Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. champerty champion Related Content Daily Word Quiz: digression Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language