Penthouses rhymes with:
courthouses, guesthouses, hothouses, lighthouses, outhouses, statehouses, boardinghouses, clearinghouses, clubhouses, coffeehouses, courthouses, culverhouse's, doghouses, dollhouses, firehouses, greenhouses, guesthouses, hothouses, lighthouses, megahouses, outhouses, playhouses, powerhouses, rittenhouse's, slaughterhouses, statehouses, steakhouses, storehouse's, systemhouse's, townhouses, waterhouse's, westinghouse's
Penthouses sounds like:
paints, pandas, pandick, panetta's, pantex, panties, pantoja, pants, pantuso, pantyhose, pavements, payments, peanuts, pennants, pentax, pentech, penthouse, pentz, phonetic, phonetics, pinetta's, pint-size, pints, piontek, piontkowski, pneumatic, pneumatics, point's, points, pond's, ponds, poniatowski, pont's, pontes, pontiac, pontiac's, pontiacs, pontikes, pontious, pontius, ponts, pound's, poundage, pounds, puentes, pundits, punts