/ Dictionary / Index R River Forest: Meaning and Definition of Find definitions for: Riv'er For'est Pronunciation: [key] a city in NE Illinois. 12,392. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. River Edge River Grove Related Content Daily Word Quiz: kiln Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language