IPA: /ˈdɛdˌboʊlt/
KK: /ˈdɛdˌboʊlt/
A type of lock that uses a bolt which can only be moved by turning a key or a cylinder, making it more secure than regular locks.
Make sure to use the deadbolt to secure the door at night.
To lock a door securely using a special type of lock that cannot be opened without a key or a thumb turn.
He decided to deadbolt the door before going to bed for extra security.
Past: deadbolted
Past Participle: deadbolted
Deadbolt → The word is formed from "dead" (from Old English "dead", meaning no longer alive) and "bolt" (from Old English "bolt", meaning a sliding bar or latch). A deadbolt is a type of lock that is secured and cannot be easily opened, symbolizing a state of being 'dead' or immovable.
Think of something that is 'no longer alive' ('dead') and a 'sliding bar' ('bolt') that keeps it secure — that's why a deadbolt is a strong lock.
No commonly confused words.