Constitution's rhymes with:
constitutions, constitutions, constitutions, institution's, institutions, institutions', constitutions, institution's, institutions, institutions'
Constitution's sounds like:
coincidence, coincidences, coinciding, communicating, communication's, communications, communications', conceding, concocting, concoctions, conjugations, connecting, connections, consistence, consistency, consisting, constance, constancy, constituencies, constituency, constituting, constitutions