/ Dictionary / Index R Ryun: Meaning and Definition of Find definitions for: Ry•un Pronunciation: (rī'un), [key] (Jim), born 1947, U.S. track-and-field athlete. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Ryukyuan Ryurik Related Content Daily Word Quiz: vertigo Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language