Mastery rhymes with:
blustery, celestory, history, mystery, protohistory, upholstery, adultery, alimentary, artery, autery, battery, blustery, buttery, celestory, complimentary, contradictory, coterie, daughtery, directory, documentary, eatery, effrontery, factory, flattery, glittery, guattery, hattery, history, introductory, jittery, lottery, mcmurtrie, mystery, notary, olfactory, parliamentary, patrie, peremptory, perfunctory, petery, pottery, premonitory, protohistory, raftery, rectory, refractory, rotary, rudimentary, sedimentary, slattery, splintery, supplementary, testamentary, trajectory, unsatisfactory, upholstery, valedictory, victory, watery
Mastery sounds like:
maestra, maestri, maestro, magistro, manchester, master, mastro, maxtor, mcadory, mcateer, mccotter, mcteer, mctier, meester, megastore, meghdar, meister, mester, mestre, mightier, minister, ministry, minstar, minster, misater, mister, mistero, mistry, mixter, mixture, moisture, monastery, monster, mostar, moster, muenster, munster, musidora, musketeer, muster, mystere, mystery