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