1

bolt

noun \ ˈbōlt \
1 a : a shaft or missile designed to be shot from a crossbow or catapult; especially : a short stout usually blunt-headed arrow
b : a lightning stroke; also : thunderbolt
2 a : a wood or metal bar or rod used to fasten a door
b : the part of a lock that is shot or withdrawn by the key
3 : a roll of cloth or wallpaper of specified length
4 : a metal rod or pin for fastening objects together that usually has a head at one end and a screw thread at the other and is secured by a nut
5 a : a block of timber to be sawed or cut
b : a short round section of a log
6 : a metal cylinder that drives the cartridge into the chamber of a firearm, locks the breech, and usually contains the firing pin and extractor

Illustration of bolt

illustration of bolt

Origin and Etymology of bolt

Middle English, from Old English; akin to Old High German bolz crossbow bolt, and perhaps to Lithuanian beldėti to beat

Other Hardware Terms


2

bolt

verb
bolted; bolting; bolts
1 : to move suddenly or nervously : start
2 : to move or proceed rapidly : dash
3 a : to dart off or away : flee
b : to break away from control or a set course
4 : to break away from or oppose one's previous affiliation (as with a political party or sports team)
5 : to produce seed prematurely
1 a archaic : shoot, discharge
b : flush, start
  • bolt rabbits
2 : to say impulsively : blurt
3 : to secure with a bolt
  • bolt the door
4 : to attach or fasten with bolts
5 : to eat hastily or without chewing
  • bolted his breakfast
6 : to break away from or refuse to support (something, such as a political party)

First Known Use of bolt

13th century

in the meaning defined at intransitive sense 1

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3

bolt

adverb
1 : in an erect or straight-backed position : rigidly
  • sat bolt upright
2 archaic : directly, straight

Examples of bolt in a Sentence

  1. She sat bolt upright, staring straight ahead.

First Known Use of bolt

15th century

in the meaning defined at sense 1

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4

bolt

noun
: the act or an instance of bolting

First Known Use of bolt

1577

in the meaning defined above

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5

bolt

verb
bolted; bolting; bolts
1 : to sift usually through fine-meshed cloth
  • bolt flour
2 archaic : sift 2

Origin and Etymology of bolt

Middle English bulten, from Anglo-French buleter, of Germanic origin; akin to Middle High German biuteln to sift, from biutel bag, from Old High German būtil


BOLT Defined for English Language Learners

bolt

  • : with the back in a very straight position


BOLT Defined for Kids

1

bolt

noun \ ˈbōlt \
1 : a stroke of lightning : thunderbolt
2 : a sliding bar used to fasten a door
3 : the part of a lock worked by a key
4 : a metal pin or rod with a head at one end and a screw thread at the other that is used to hold something in place
5 : a roll of cloth or wallpaper

2

bolt

verb
bolted; bolting
1 : to move suddenly and rapidly
  • She bolted from the room.
2 : to run away
  • The horse shied and bolted.
3 : to fasten with a bolt
  • Be sure to bolt the door.
4 : to swallow hastily or without chewing
  • Don't bolt your food.


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