n. Naval, a member of a gun's crew or turret crew whose duty it is to keep his gun, or the axis of the turret, in lateral train exactly on the target. Also called training-pointer. In modern practice the tendency is to have two persons engaged in keeping the gun on the target, the training-pointer and the firing-pointer. See gun-pointer.n. One who trains; an instructor.n. One who trains or prepares men, etc., for the performance of feats requiring certain physical fitness, as an oarsman for a boat-race, a pugilist for a prizefight, or a horse for racing.n. A militiaman.n. A wire or wooden frame upon which flowers or shrubs are trained.