/ Dictionary / Index C Cointreau: Meaning and Definition of Find definitions for: Coin•treau Pronunciation: (kwän'trō Fr. kwan&sylptrō'), [key] — Trademark. Trademark. a colorless, orange-flavored liqueur. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. coinsurer coinventor Related Content Daily Word Quiz: reiterate Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language