/ Dictionary / Index C couteau: Meaning and Definition of Find definitions for: cou•teau Pronunciation: (k-tō'), [key] — pl. -teaux a knife, esp. a large double-edged one formerly carried as a weapon. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Cousy couter Related Content Daily Word Quiz: resilient Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language