locknut

L1O1C3K5N1U1T1

noun

A nut with an inner ring made of a material with elastic properties to prevent it from slipping.

Similar
safety nut
UncommonScrabble 13
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Meanings

nounlocknut (plural locknuts)

plural locknuts

  1. A nut with an inner ring made of a material with elastic properties to prevent it from slipping.
  2. A second nut, screwed down onto another in order to prevent it slipping.

Synonyms & antonyms

nounsupplementary nut that is screwed down on a primary nut to prevent it from loosening

Similar
safety nut
Broader
nut

Synonym sets from Open English WordNet, CC BY 4.0.

Origin

From lock + nut.

Full word history & related roots →

Translations

Bulgarian контрагайка
  • контрагайка (kontragajka)A second nut, screwed down onto another in order to prevent it slipping
Dutch borgmoer
  • borgmoerA nut with an inner ring made of a material with elastic properties to prevent it from slipping
Spanish tuerca con nailon, contratuerca
  • tuerca con nailonA nut with an inner ring made of a material with elastic properties to prevent it from slipping
  • contratuercaA second nut, screwed down onto another in order to prevent it slipping
Cite this entry
APA

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

MLA

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

Chicago

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

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