/ Dictionary / Index R riverside: Meaning and Definition of Find definitions for: riv•er•side Pronunciation: (riv'ur-sīd"), [key] — n. a bank of a river. —adj. on or near a bank of a river. Riv•er•side Pronunciation: (riv'ur-sīd"), [key] — n. a city in SW California. 170,876. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: riverside (Thesaurus) riverscape Riverview Related Content Daily Word Quiz: philtrum Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language