/ Dictionary / Index R Rioja: Meaning and Definition of Find definitions for: Ri•o•ja Pronunciation: (rē-ō'hä Sp. rē-ô'hä), [key] — n. a table wine, esp. a dry red wine, from the Rioja region of northern Spain. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: rioja (Thesaurus) Rio Grande do Sul Río Muni Related Content Daily Word Quiz: maritime Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language