deadbolt

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English[edit]

Etymology[edit]

dead +‎ bolt

Noun[edit]

deadbolt (plural deadbolts)

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  1. The part of the lock which is moved when the key is engaged.
  2. 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.

Verb[edit]

deadbolt (third-person singular simple present deadbolts, present participle deadbolting, simple past and past participle deadbolted)

  1. (transitive) To fasten or secure with a deadbolt.