1 (be cheeky) (on one occasion) replicar; contestar; (habitually) ser respondónonarespondona;ona respondona don't answer back! ¡no repliques!
she was beaten by teachers for answering back /they answer back/ - I wouldn't have dared to speak to my parents like that
2 (defend o.s.) defenderse contra las críticas; (contra las críticas) his position makes it impossible for him to answer back /he wouldn't tolerate anyone who answered back/ or posed a threat to his dominance /I learned not to answer back/ because if I did, he would get violent with me he was always the guy who gets pushed around, a fellow really too decent to answer back or stir it up Meg who had never dared answer back when Sarah attacked her