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