deadbolt Hear it!

deadbolt Definition

dead·bolt (-bōlt′)

noun

a lock for a door, with a square-headed bolt that can be moved only by turning the key or a knob: it has no spring

deadbolt Usage Examples

Modifies a noun

  • lock: These can work with existing Yale, or deadbolt type locks.

Noun used with modifier

  • mortice: If you're sure there's no-one left inside, don't forget to lock the mortice deadbolt.