offender vs aggressor

Other hyponyms of offender include abuser, maltreater, assailant, assaulter, attacker, barrater, barrator, convict, beguiler, cheat, cheater, deceiver, slicker, trickster, delinquent, juvenile delinquent, defector, deserter, ganef, ganof, gonif, goniff, transgressor, malfeasant, molester, no-show, nonattender, truant, culprit, perpetrator, fancy man, pandar, pander, panderer, pimp, ponce, procurer, principal, backslider, recidivist, reversionist, miscreant, reprobate, shark, pettifogger, shyster, evildoer, sinner, supplanter, usurper, war criminal.