Master's rhymes with:
headmasters, lemasters, masters, masters', mcmasters, asters, astor's, casters, disasters, headmasters, lemasters, masters, masters', mcmasters, pastor's, pastors, pilasters, plasters
Master's sounds like:
masters, masters', masterwork, masterworks, mastrich, mastrich's, mcdaris, mckitrick, mckittrick, mcwaters, mcwatters, megastores, meisters, mesothorax, minister's, ministers, ministers', ministries, ministry's, minstar's, misters, mistress, mistresses, mixtures, monasteries, monsters, monstrous, moonstruck, mostar's, musketeers, musters, mysteries, mysterious