We don't have any synonyms for u-lock yet.
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Definition of u-lock:
(n) :
The name of the Latin-script letter U/u.
(n) :
A thing in the shape of the letter U
(n) :
(UK) A film with the film classification U (“universal”).
(adj) :
(not comparable, education, espionage) Usually in parentheses: abbreviation of unclassified.
(n) :
A U-turn.
(n) :
An honorific to a Burmese man