RETALIATE

v. 25B6; verb FIGHT BACK, hit back, respond, react, reply, reciprocate, counter-attack, return like for like, get back at someone, give tit for tat, give someone a taste of their own medicine; have/get/take one's revenge, be revenged, avenge oneself, take reprisals, get even, pay someone back; informal get one's own back; archaic give someone a Roland for an Oliver.