If your job is installing locks on people's houses and fixing their broken locks, you can call yourself a locksmith.

A locksmith knows all about locks; she makes them, puts them on doors, and repairs them. If you've ever locked yourself out of your house, the person to call for help is a locksmith. When you need a new copy of your apartment key, you can also visit a locksmith. The word comes from lock and smith, from the Old English smið, "one who works with metal."

Definitions of locksmith
  1. noun
    someone who makes or repairs locks
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    type of:
    someone who works at something specified
Word Family