Outrider1. (n.) A summoner whose office is to cite men before the sheriff.
2. (n.) One who rides out on horseback.
3. (n.) A servant on horseback attending a carriage.
Thesaurus Entries
Gabriel, Mahdi, advertisement, advertiser, ancestor, announcement, announcer, antecedent, augury, author, avant-garde, bell cow, bell mare, bellwether, born leader, buccinator, buccinator novi temporis, bushwhacker, charismatic leader, choirmaster, choragus, coach, conductor, coryphaeus, duce, envoy, evangel, evangelist, example, exemplar, explorer, file leader, forebear, forefather, foregoer, foreshadow, foreshadower, foretoken, forewarning, front runner, frontiersman, fugleman, groundbreaker, guide, harbinger, herald, herald angel, initiator, innovator, inspired leader, instructor, lead runner, leader, leader of men, mark, mentor, messenger, messiah, model, omen, originator, outrider, pacemaker, pacesetter, pathfinder, pattern, pioneer, point, portent, precedent, precentor, precursor, predecessor, premise, premonition, premonitor, preparationist, preparator, preparer, presage, presager, progenitor, prognostic, prototype, ringleader, scout, sign, standard-bearer, stormy petrel, symphonic conductor, symptom, teacher, token, torchbearer, trailblazer, trailbreaker, trainer, vanguard, vaunt-courier, voortrekker, warning