Here's what rhymes with diapason.
assassin fasten unfasten refasten Words that almost rhyme with diapason
passion tation fashion ration lation compassion chasm fathom spasm plasm dispassion refashion phantasm cytoplasm neoplasm protoplasm iconoclasm enthusiasm barren baron bastion taxon batten chanson talon damson happen abandon hadn cabin cannon canon famine wagon chaplain dragon gallon salmon satin haben blacken bracken dampen fatten jasmine latin waxen adaption banyan mammon platen batsman sadden gammon madden badman badmen taxman gasman taxmen imagine attraction captain faction battalion mansion traction canyon canton caption falcon saffron stallion flatten hangman madmen medallion plantain slacken capstan flagon flaxen gladden klaxon trashcan raglan reaction companion fraction grandson sanction inaction compaction plankton draftsman draughtsman impaction redaction draftsmen handgun scansion clansman scallion triathlon pentathlon upperclassman bandsman flashgun gyrfalcon sandmen expansion interaction transaction abstraction contraction diffraction refraction craftsman distraction retraction subtraction prolactin exaction zooplankton benefaction clansmen contraption detraction landsman protraction gravamen underclassman extraction phytoplankton infraction reexamine counteraction stupefaction overreaction rapscallion malefaction satisfaction dissatisfaction liquefaction putrefaction rarefaction petrifaction vitrifaction