/ Dictionary / Index R redupl.: Meaning and Definition of Find definitions for: redupl. Pronunciation: [key] reduplication. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. redundant check reduplicate 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