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outdrawn thereon salon whereon exon fagon redrawn chaperon chiffon aileron hereon predawn autobahn lasagne undergone withdrawn thereupon whereupon polygon denouement foregone pantheon echelon octagon paragon forgone hereupon overdrawn amazon antiphon epsilon tarragon woebegone carillon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