Here's what rhymes with ncorn.
corn born borne torn worn barn horn warn scorn yarn morn mourn thorn shorn darn porn tarn lorn sworn adorn unborn unworn forlorn reborn outworn unicorn careworn forborne timeworn lowborn forewarn peppercorn sweetcorn firstborn stillborn waterborne forsworn lovelorn foresworn Words that almost rhyme with ncorn
arm form farm warm charm harm norm forme dorm alarm inform storm psalm swarm rearm perform reform conform forearm disarm lukewarm deform firearm nonfarm underarm overarm rewarm uniform preform vermiform schoolmarm yardarm transform chloroform cruciform multiform outperform misinform cuneiform thunderstorm fusiform nonuniform on gone con aan khan awn don non von dawn lawn yon hon wan bon fawn han pawn schon yawn bonne sawn sonne vpon faun john gnawn upon drawn spawn swan yuan exon fagon npon begone brawn pecan prawn neocon undergone thereon salon baton foregone whereon operon chiffon forgone tenon aileron amazon hereon lasagne polygon denouement pantheon echelon marathon octagon paragon redrawn chaperon pentagon antiphon predawn tarragon woebegone autobahn carillon trimaran emoticon outdrawn methadon withdrawn thereupon whereupon lexicon automaton hexagon hereupon overdrawn epsilon mastodon heptagon cordovan upsilon frogspawn phenomenon positron leprechaun rapprochement pantechnicon