Learn how to say Bolt correctly in English with this tutorial pronunciation video.
Oxford dictionary definition of the word bolt:
1a large metal pin, in particular:
a bar that slides into a socket to fasten a door or window.
a long pin with a head that screws into a nut, used to fasten things together.
the sliding piece of the breech mechanism of a rifle.
Climbing a long pin that is driven into a rock face so that a rope can be attached to it.
2a short, heavy arrow shot from a crossbow.
3a jagged white flash of lightning.
fasten with a bolt, in particular:
fasten (a door or window) with a bar that slides into a socket:
all the doors were locked and bolted
[with object and adverbial of place] fasten (something) to something else with a long pin that screws into a nut:
the lid was bolted down
new benefits have been bolted on to the social security system