Slaughterhouses rhymes with:
waterhouse's, waterhouse's, culverhouse's, firehouses, powerhouses, waterhouse's, boardinghouses, clearinghouses, clubhouses, coffeehouses, courthouses, culverhouse's, doghouses, dollhouses, firehouses, greenhouses, guesthouses, hothouses, lighthouses, megahouses, outhouses, penthouses, playhouses, powerhouses, rittenhouse's, statehouses, steakhouses, storehouse's, systemhouse's, townhouses, waterhouse's, westinghouse's
Slaughterhouses sounds like:
slaughterhouse, slaughters, solicitors