of set-the act of one who, or that which, sets; as, the setting of type, or of gems; the setting of the sun; the setting (hardening) of moist plaster of paris; the setting (set) of a current.-the act of marking the position of game, as a setter does; also, hunting with a setter.-something set in, or inserted.-that in which something, as a gem, is set; as, the gold setting of a jeweled pin.