Coincidences rhymes with:
incidences, incidences, incidences, confidences, incidences, providence's, cadences, confidences, incidences, independence's, providence's, residences
Coincidences sounds like:
coincidence, coinciding, communicating, communication's, communications, communications', conceding, concocting, concoctions, conjugations, connecting, connections, consistence, consistency, consisting, constance, constancy, constituencies, constituency, constituting, constitution's, constitutions