Here's what rhymes with operon.
upon don non drawn gone von con dawn lawn yon hon wan baton bon fawn han pawn schon yawn bonne khan sawn sonne vpon brawn chaperon pecan prawn faun john gnawn undergone salon spawn swan yuan octagon begone tenon aileron amazon antiphon hereon autobahn lasagne upsilon thereon automaton foregone whereon echelon exon fagon npon paragon redrawn chiffon forgone epsilon mastodon predawn tarragon outdrawn withdrawn thereupon whereupon polygon denouement pantheon positron marathon hereupon overdrawn woebegone carillon cordovan neocon trimaran emoticon methadon phenomenon rapprochement hexagon pentagon leprechaun heptagon frogspawn lexicon pantechnicon Words that almost rhyme with operon
long along wrong com song calm bomb palm mom bom homme vom balm gong nom rom som tom dom dong mam prom prong thong pom pong tong twang bong sarong iamb strong belong quam prolong throng ftrong suam aplomb pogrom qualm salaam erelong becalm intercom embalm consomme mahjong nightlong firebomb dingdong supermom lifelong cardamom singsong yearlong livelong born corn borne torn worn barn horn warn yarn adorn morn mourn thorn shorn darn porn tarn lorn scorn sworn forlorn unborn outworn waterborne unworn reborn firstborn careworn forborne forewarn peppercorn timeworn lowborn stillborn forsworn lovelorn foresworn sweetcorn unicorn