bolt - definition in the American English Dictionary - Cambridge Dictionaries Online

Cambridge Dictionaries online Cambridge Dictionaries online

The most popular online dictionary and thesaurus for learners of English

English definition of “bolt”

See all translations

bolt

noun [C]  us   /boʊlt/

bolt noun [C] (LOCK)

a small metal bar that slides across a door or window to lock it: I fastened the door with a bolt. A bolt is also a part of a gun that pushes the cartridge (= container filled with explosive powder) into position to be fired.

bolt noun [C] (SCREW)

a metal screw without a point, used to fasten things together, often with a nut (= small piece of metal that attaches to it)

bolt noun [C] (LIGHTNING)

a flash of lightning, esp. followed by thunder: Did a bolt of lightning set fire to the barn?

bolt noun [C] (ROLL)

a roll of cloth or paper, esp. wallpaper

bolt

verb  us   /boʊlt/

bolt verb (MOVE SUDDENLY)

[I/T] to move suddenly and quickly: [I] At the first whiff of smoke, the horse bolted from the barn. [M] He bolted down some breakfast.

bolt verb (LOCK)

[T] to lock a door or window with a bolt: Be sure to bolt the door when you go to bed!

bolt verb (SCREW)

[T always + adv/prep] to fasten two things together with a bolt: He sat on a wooden bench bolted to the floor.
(Definition of bolt from the Cambridge Academic Content Dictionary © Cambridge University Press)
What is the pronunciation of bolt?
Add Cambridge dictionaries to your browser to your website

Definitions of “bolt” in other dictionaries

Word of the Day

kick off

the time when a game of football starts, or when it begins again after it has stopped because of a goal, etc.

Word of the Day

She’s got very good posture. (How we stand and sit)

by Liz Walter,
May 27, 2015
Recently on this blog, we looked at the words that we use to describe the way we move. This week we’re looking at words for describing our bodies when they are still, whether we are standing or sitting. Since most of us do far too much of this, let’s start with sitting.

Read More 

ancestral health noun

May 25, 2015
diet based on the presumed diet of our Palaeolithic ancestors ‘Ancestral health,’ to use a term popular among Paleo followers, has gone mass.

Read More