- troop [tro͞op]n.[Fr troupe < OFr, back-form. < troupeau < ML troppus, a flock < Frank * throp, a crowd; akin to OE thorp, village: see THORP]1. a group of persons, animals, or, formerly, things; herd, flock, band, etc.2. loosely a great number; lot3. [pl.]a) a body of soldiersb) soldiers [45 troops were killed]4.a) a subdivision of a mounted cavalry regimentb) an armored cavalry unit that corresponds to a company of infantry5. a unit of Boy Scouts or Girl Scouts under an adult leader6. Archaic a group of actors; troupevi.1. to gather or go together in a throng [the crowd trooped out of the stadium]2. to walk, go, or pass [children were trooping along the sidewalk]3. Archaic to associate or consort——————troop the colorsBrit. to parade the colors, or flag, before troopsSYN.- TROOP is applied to a group of people organized as a unit [a cavalry troop], or working or acting together in close cooperation [troops of sightseers ]; TROUPE is the current form with reference to a group of performers, as in the theater or a circus; COMPANY is the general word for any group of people associated in any of various ways; BAND2 suggests a relatively small group of people closely united for some common purpose [a band of thieves, a brass band]
English World dictionary. V. Neufeldt. 2014.