Meanings
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1
noun
a person whose job is to make, fit, open, or repair locks and keys
They called a locksmith to open the door without damaging the frame.
Thesaurus
Etymology
From Middle English loksmith, a compound of lock + smith. Smith once referred broadly to a skilled craftworker as well as specifically to a metalworker, so a locksmith was the specialist who made and repaired the metal mechanisms of locks.