Here's what rhymes with diffustion.
combustion Words that almost rhyme with diffustion
custom accustom someone sudden suction summon luncheon sullen sunken fuckin escutcheon scutcheon function discussion button cousin dozen deduction disruption eruption emulsion mutton sultan revulsion shrunken avulsion exciton huntsman irruption yeomen gunman muffin coven dudgeon toughen bunion mullion piton roughen scullion decagon dustman nubbin dubbin kuchen assumption destruction corruption induction dysfunction junction presumption drunken expulsion dungeon percussion resumption seduction tungsten disjunction muslin perdition globin bludgeon glutton gulden impulsion gumption dustpan lumpen stuntman grunion production instruction reduction injunction interruption abduction repulsion convulsion propulsion subduction liposuction unbutton caparison biathlon consumption conduction obstruction compulsion androgen concussion malfunction transduction semicolon repercussion bellybutton construction introduction conjunction reproduction compunction ragamuffin deconstruction overproduction reconstruction reintroduction misconstruction underproduction