The term troop has several different meanings, depending on context. It derives from the middle French word Troupe (1540's), which present-day means an actor or other form of entertainer, typically one with long experience.[1] The verb Troop means "to assemble" or "to march" and the noun, in it's simplest form, means "body of soldiers."[2] Troop also generally refers to a small military formation of cavalry, subordinate to a squadron.[3] In many armies a troop is the equivalent element to the infantry section or platoon. A cavalry soldier of private rank is called a trooper in many Commonwealth armies and is usually abbreviated as "Tpr."
However, in this particular definition, term "troop" or its plural form "troops" refers to members of the military as a collective, namely as in "the troops" - a body of soldiers.[3]