/ Dictionary / Index D De Niro: Meaning and Definition of Find definitions for: De Ni•ro Pronunciation: (du nēr'ō), [key] born 1943, U.S. actor. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. denimed Denis Related Content Daily Word Quiz: diligent Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language