/ Dictionary / Index C coupon rate: Meaning and Definition of Find definitions for: cou'pon rate" Pronunciation: [key] the interest rate fixed on a coupon bond or other debt instrument. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. couponing coup stick Related Content Daily Word Quiz: philtrum Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language