Synonyms of feedback

2 Syllables
comment, re-bound, reply, replies, answers, reaction, replied, replying, respond, answer, reactions, backcap
3 Syllables
responding, follow-up, answered, follow-through, re-echo, response, followup, answering, comeback, double-take, antiphons, reagency, assessment, reflexes, criticism, responded, antiphon, sentiment, rebuttal, retroaction
4 Syllables
repercussions, evaluation, retaliation, observation, repercussion