noun, verb ·Rare ·Advanced level

Definitions

Noun

1. 1
   The part of the lock which is moved when the key is engaged.
2. 2
   the part of a lock that is engaged or withdrawn with a key wordnet
3. 3
   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. 1
   To fasten or secure with a deadbolt. transitive

Synonyms

All synonyms

boltboltdeadlock

Etymology

From dead + bolt.

Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.