/ Dictionary / Index R River Edge: Meaning and Definition of Find definitions for: Riv'er Edge' Pronunciation: [key] a borough in NE New Jersey. 11,111. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Riverdale River Forest 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