/ Dictionary / Index O old river: Meaning and Definition of Find definitions for: old' riv'er Pronunciation: [key] a river bed left dry because the river has changed its course. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Old Ritualist old rose Related Content Daily Word Quiz: denizen Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language