bar a rigid piece of metal or wood; usually used as a fastening or obstruction or weapon; "there were bars in the windows to prevent escape"
lock any wrestling hold in which some part of the opponent's body is twisted or pressured
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Wiktionary
Substantiv
deadbolt -
The part of the lock which is moved when the key is engaged.
deadbolt -
A kind of lock in which the bolt moving portion is held in position by the cylinder rather than by a spring and so can not be retracted except by turning the cylinder.