Here's what rhymes with passase.
has jazz whereas Words that almost rhyme with passase
have half hath sash hash gas mass pass path staff behalf cash bath laugh flash wrath alas bass calf dash math rash cache lash smash chaff harass lass mash slash amass gash lath thrash class glass grass brass crash graph clash trash epitaph splash surpass bras brash crass giraffe morass aftermath autograph impasse epigraph paragraph photograph telegraph fiberglass underclass monograph phonograph lithograph fans halves hangs sans fangs vans fads hams hands paths bags valves cans dams flags rags sands slabs calves gangs lads lambs pads pangs pans scans spans tags labs lags rams tabs yams bangs bans cabs cams gals jams mans pals scabs stabs stags plans lands stands bands canals clans grams crabs exams clams crags drags grabs grammes sepals demands commands diagrams glands brands strands caravans epigrams locales understands expands telegrams kilograms milligrams