Cambridge Dictionaries online Cambridge Dictionaries online

The most popular online dictionary and thesaurus for learners of English

English definition of “bolt”

bolt

verb [I or T] (LOCK)    /bəʊlt/ US  /boʊlt/
to lock a door or window by sliding a bolt across: Have you locked and bolted the door? The door bolts on the inside.Locking and bolting
(Definition of bolt verb (LOCK) from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
Focus on the pronunciation of bolt

Browse related topics

You are looking at an entry to do with Locking and bolting, but you might be interested in these topics from the Opening and closing topic area:

Definitions of “bolt” in other dictionaries

Word of the Day

closeness

the quality of knowing someone very well, liking them a lot, and wanting to spend a lot of time together

Word of the Day

Blog

Read our blog about how the English language behaves.

Learn More

New Words

Find words and meanings that have just started to be used in English, and let us know what you think of them.

Learn More