Standard Lemma guide
Definitions and examples are grouped by meaning. Pronunciation, history, word forms, translations, descendants, synonyms, antonyms, derived terms, and related words appear whenever the source provides them.
Sound
Each Play button uses your device's default local English voice, or a natural local fallback. The selected voice name appears after playback. This is synthesized speech, not a source recording.
No pronunciation record was provided for this word.
noun
A mechanism that secures an aircraft's landing gear in the retracted position, helping to prevent an uncommanded gear deployment during flight.
Definition source: English Wiktionary via Wiktextract
Topics: aeronautics, aerospace, aviation, business, engineering, natural-sciences, physical-sciences
No example sentence was provided for this meaning.
Synonyms: none provided
Antonyms: none provided
verb
To lock up.
Definition source: English Wiktionary via Wiktextract
Usage: obsolete
No example sentence was provided for this meaning.
Synonyms: none provided
Antonyms: none provided
History
Etymology tree English up- Proto-Indo-European *lewg-der. Proto-Germanic *luką Proto-West Germanic *lok Old English loc Middle English lok English lock English uplock From up- + lock.
