Confidence's rhymes with:
evidences, evidences, alliances, ambulances, appearances, appliances, audience's, audiences, balances, condolences, conferences, distances, disturbances, entrances, evidences, fragrances, grievances, indulgences, instances, performances, prominences, protuberances, provinces, resemblances, sciences, sentences, sequences, substances
Confidence's sounds like:
cambodians, combating, combatting, competence, competencies, competency, competing, competition's, competitions, compton's, computations, computing, confidence, confidences, confiding