Superintendent's rhymes with:
superintendents, attendant's, attendants, attendants', superintendents, attendant's, attendants, attendants', defendant's, defendants, defendants', dependents, descendants, descendents, independents, superintendents
superintendents, attendant's, attendants, attendants', superintendents, attendant's, attendants, attendants', defendant's, defendants, defendants', dependents, descendants, descendents, independents, superintendents