a body or order of cavaliers or knights serving on horseback; illustrious warriors, collectively; cavalry.-the dignity or system of knighthood; the spirit, usages, or manners of knighthood; the practice of knight-errantry.-the qualifications or character of knights, as valor, dexterity in arms, courtesy, etc.-a tenure of lands by knight's service; that is, by the condition of a knight's performing service on horseback, or of performing some noble or military service to his lord.-exploit.