<p><strong>Noun</strong></p><ul><li>A mounted attendant riding before or beside a carriage.</li><li>(At a racetrack) a mounted rider who accompanies or leads a racehorse to the post.</li><li>A person who goes in advance of an automobile or person to clear a passage.</li><li>A person who leads the way or is a member of a vanguard; forerunner.</li><li>A person who rides out or forth, especially a scout, cowhand, ranch hand, or the like.</li></ul>