THESAURUS
acknowledge, answer, answer back, come back, counter, echo, flash back, get back at, give acknowledgment, give and take, give answer, give in exchange, give in return, hit back at, react, reciprocate, reecho, rejoin, reply, respond, retaliate, retort, return, return answer, return for answer, reverberate, riposte, say, say in reply, shoot back, snap back, strike back, take the bait, talk back
