uplock

U1P3L1O1C3K5

noun

A mechanism that secures an aircraft's landing gear in the retracted position, helping to prevent an uncommanded gear deployment during flight.

OriginEnglish lock ← Middle English lok ← Old English loc →
Scrabble 14
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Meanings

nounuplock (plural uplocks)

plural uplocks

  1. aeronauticsA mechanism that secures an aircraft's landing gear in the retracted position, helping to prevent an uncommanded gear deployment during flight.
verbuplock (third-person singular simple present uplocks, present participle uplocking, simple past and past participle uplocked)

present singular third person uplocks · participle present uplocking · participle past uplocked · past uplocked

  1. obsoleteTo lock up.

Origin

  1. Englishup-
  2. Proto-Indo-European*lewg-
  3. Proto-Germanic*luką
  4. Proto-West Germanic*lok
  5. Old Englishloc
  6. Middle Englishlok
  7. Englishlock
  8. Englishuplock

From up- + lock.

Full word history & related roots →

Rhymes & wordplay

Anagrams

lockup
Cite this entry
APA

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

MLA

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

Chicago

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

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