Here's what rhymes with sewingthread.
lead led read red fled thread sled said head bed dead instead spread bread fed shed bred dread infrared tread bled med misled shewed sped stead wed ted ahead assayed overhead widespread watershed Words that almost rhyme with sewingthread
yet let threat ledge wretch fret rep sledge get set met step debt net sketch stretch web wet bet jet pledge sweat fetch hedge pet wedge allege prep steppe vet forget offset reset duet regret cigarette upset beset cassette beget cadet pipette preset silhouette alphabet bayonet epithet parapet quartet clarinet friend lend yelled flared fledged rend held send shared spend tend alleged stared trend begged bend cared dared scared spared blend haired paired pledged spelled fared glared mend penned smelled stemmed swelled weld bared celled chaired felled fend hedged hemmed shelled wedged attend extend expelled impaired intend repaired amend ascend offend squared cleansed excelled impelled rebelled repelled expend declared prepared depend defend descend pretend beheld centred suspend upheld withheld commend propelled avenged despaired dispelled quarrelled compared compelled condemned recommend contend overwhelmed apprehend dividend transcend paralleled unprepared unimpaired comprehend unparalleled superintend