Here's what rhymes with singlethread.
lead led read red fled thread sled said head bed dead spread bread fed shed bred dread tread bled med shewed sped stead wed ted ahead misled assayed instead overhead infrared widespread watershed Words that almost rhyme with singlethread
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 regret offset reset duet cigarette upset alphabet beset cassette beget cadet pipette preset silhouette bayonet epithet parapet clarinet quartet 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 repaired amend ascend offend squared upheld cleansed rebelled repelled compared declared prepared depend extend compelled condemned defend contend descend expelled impaired intend pretend beheld centred suspend withheld commend excelled impelled paralleled propelled avenged despaired dispelled expend quarrelled recommend overwhelmed apprehend dividend transcend unparalleled unprepared unimpaired comprehend superintend