deadbolt
UK /ˈdɛdˌboʊ̯lt/ US /ˈdɛdˌboʊ̯lt/
noun 2verb 1
Definitions
noun
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 cannot be retracted except by turning the cylinder.
verb
1
To fasten or secure with a deadbolt.
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