Coincidence rhymes with:
overconfidence, residence, abundance, accordance, ascendance, attendance, avoidance, cadence, confidence, correspondence, credence, decadence, dependence, evidence, guidance, impedance, imprudence, incidence, independence, interdependence, jurisprudence, kloberdanz, overabundance, overconfidence, overdependence, precedence, providence, prudence, residence, riddance, self-confidence, subsidence, transcendence
Coincidence sounds like:
coincidences, coinciding, communicating, communication's, communications, communications', conceding, concocting, concoctions, conjugations, connecting, connections, consistence, consistency, consisting, constance, constancy, constituencies, constituency, constituting, constitution's, constitutions