/ Dictionary / Index O outrunner: Meaning and Definition of Find definitions for: out•run•ner Pronunciation: (out'run"ur), [key] — n. a person or thing that runs ahead or outside. an attendant who runs before or beside a carriage. the leader of a team of dogs. a forerunner. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. outrun outrush Related Content Daily Word Quiz: grimace Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language