/ Dictionary / Index R Riverdale: Meaning and Definition of Find definitions for: Riv•er•dale Pronunciation: (riv'ur-dāl"), [key] — n. a city in NE Illinois. 13,233. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. river carpsucker River Edge Related Content Daily Word Quiz: leonine Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language