thumbnut

T1H4U1M3B3N1U1T1

noun

A nut with a knurled rim which can be turned with thumb and forefinger.

Similar
wingnutwing nutwing-nutwing screwbutterfly nut
Scrabble 15
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Meanings

nounthumbnut (plural thumbnuts)

plural thumbnuts

  1. engineeringA nut with a knurled rim which can be turned with thumb and forefinger.
  2. Synonym of wingnut.

    Synonyms: wingnut

Synonyms & antonyms

nounSynonym of wingnut.

Similar
wingnut

More synonyms by meaning

nouna threaded nut with winglike projections for thumb and forefinger leverage in turning

Similar
wing nutwing-nutwing screwbutterfly nut
Broader
nut
Also see
butterfly nutwing nut

Synonym sets from Open English WordNet, CC BY 4.0.

Origin

From thumb + nut.

Full word history & related roots →
Cite this entry
APA

thumbnut. (n.d.). In WatkinsX Dictionary. Retrieved November 3, 2026, from https://dictionary.watkinsx.com/word/thumbnut

MLA

“thumbnut.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/thumbnut. Accessed November 3, 2026.

Chicago

WatkinsX Dictionary, s.v. “thumbnut,” accessed November 3, 2026, https://dictionary.watkinsx.com/word/thumbnut.

Source: thumbnut on Wiktionary, CC BY-SA 4.0.