Confederacy's rhymes with:
accuracies, accuracies, associes, bureaucracies, bureaucracy's, candidacies, conspiracies, courtesies, delicacies, democracies, democracy's, embassies, embassy's, fallacies, fantasies, hennessey's, inadequacies, intricacies, jealousies, legacies, odyssey's, pharmacies, policies, policy's, privacies, prophecies
Confederacy's sounds like:
competitor's, competitors, competitors', computer's, computerize, computers, computers', computrac, confederacy, confiterias