Criminals' rhymes with:
criminal's, criminals, criminal's, criminals, criminal's, criminals, criminal's, criminals, terminals, arsenals, biphenyls, cardinal's, cardinals, confessionals, criminal's, criminals, diagonals, international's, internationals, juvenile's, juveniles, multinationals, national's, nationals, nonprofessionals, originals, professionals, professionals', regionals, sentinels, superregionals, superregionals', terminals
Criminals' sounds like:
caramelize, chronologies, chronology, cornelious, cornelius, cornell's, corniel's, cornwall's, cornwallis, crenwelge, criminal's, criminalize, criminals, criminology, cromwell's, crownlike