/ Dictionary / Index O outrider: Meaning and Definition of Find definitions for: out•rid•er Pronunciation: (out'rī"dur), [key] — n. a mounted attendant riding before or beside a carriage. (at a racetrack) a mounted rider who accompanies or leads a racehorse to the post. a person who goes in advance of an automobile or person to clear a passage. a person who leads the way or is a member of a vanguard; forerunner. a person who rides out or forth, esp. a scout, cowhand, ranch hand, or the like. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: outrider (Thesaurus) outride outrigger Related Content Daily Word Quiz: secular Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language