Locknut
7 lettersnounrareUpdated June 2026
Definition
A secondary nut tightened down against a primary nut to prevent it from vibrating loose.
“The engineer fitted a locknut to ensure the bolt assembly would not loosen under vibration.”
Pronunciation
Syllables
lock·nut
Related Words
Synonyms
Word Game Tips
Wordle
Ends in -NUT which is unusual, LOCK at the start is a common seven-letter opener to try
Scrabble
Solid moderate-scoring word, the K and N together in adjacent positions can help in tight board layouts
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Words one letter different
Change a single letter of “locknut” to make these 7-letter words — useful for Wordle and crossword clues.
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