locksmith

Noun

1. One who practices locksmithing.
   • The door was very strong, the lock excellent; the carpenter avowed he would have great trouble and have to do much damage, if force were to be used; and the locksmith was near despair. - 1886 January 5, Robert Louis...
   • Piccadilly, 12:30 o'clock.--Just before we reached Fenchurch Street Lord Godalming said to me, "Quincey and I will find a locksmith. You had better not come with us in case there should be any difficulty. For under the...
2. Someone who only bets when they are sure they will win.

   Synonyms: handcuff artist