Here's what rhymes with proventuum.
boom tomb doom entomb whom room bloom womb broom loom plume zoom rheum assume gloom groom fume suum flume abloom foredoom costume resume consume perfume presume residuum subsume elbowroom exhume legroom boxroom strongroom Words that almost rhyme with proventuum
tune boon doin dune soon moon noon spoon foon coon maroon prune loon rune attune festoon goon shoon immune balloon hewn shewn strewn toluene baboon buffoon harpoon pontoon swoon typhoon bassoon impugn tycoon croon jejune lampoon spittoon cartoon honeymoon lagoon monsoon platoon saloon cocoon forenoon opportune aucune raccoon dragoon doubloon patroon racoon macaroon afternoon inopportune importune picayune poltroon protozoon bestrewn tablespoon spermatozoon dessertspoon trinitrotoluene