Constituencies rhymes with:
agencies, agencies', agency's, conservancy's, contingencies, counterinsurgencies, currencies, currency's, deficiencies, delinquencies, dependencies, discrepancies, efficiencies, emergencies, exigencies, expectancies, frequencies, inefficiencies, insolvencies, insurgencies, malignancies, pregnancies, presidencies, presidency's, redundancies, regency's, tendencies, transparencies, vacancies
Constituencies sounds like:
coincidence, coincidences, coinciding, communicating, communication's, communications, communications', conceding, concocting, concoctions, conjugations, connecting, connections, consistence, consistency, consisting, constance, constancy, constituency, constituting, constitution's, constitutions