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IELTS BNC: 5051 COCA: 4899

bolt

1 bolt /ˈboʊlt/ noun
plural bolts
1 bolt
/ˈboʊlt/
noun
plural bolts
Learner's definition of BOLT
[count] : a bright line of light that appears in the sky during a storm : a flash of lightning閃電;霹靂
often used figuratively in the phrases a bolt from the blue and a bolt out of the blue常用作比喻,用於短語a bolt from the blue和a bolt out of the blue
[count]
: a sliding bar that is used to lock a door or window(門窗的)闩,插銷
: the part of a lock that is moved by a key鎖簧 see also dead bolt
[count] : a long, round piece of metal that has a wider part at one end and is like a screw at the other end螺栓
◊ A bolt and a nut are used together to hold something in place.螺栓和螺帽一起用來固定某物。
see picture at carpentry; see also nuts and bolts at nut
[singular] British : the act of running or moving quickly and suddenly in a particular direction or to a particular place迅速逃跑;溜走
[count] : a large roll of cloth一匹布
[count] : a tube-shaped metal part inside a gun槍栓;槍機
[count] : a short, heavy arrow that is shot from a type of weapon (called a crossbow) used mainly in the past弩箭
◊ If you have shot your bolt, you have done or used everything possible to try to do something, and there is nothing more that you can do.竭盡全力;智窮才盡
2 bolt /ˈboʊlt/ verb
bolts; bolted; bolting
2 bolt
/ˈboʊlt/
verb
bolts; bolted; bolting
Learner's definition of BOLT
[no object]
always followed by an adverb, adjective, or preposition : to move or go very suddenly and quickly from or to a particular place, position, or condition突然快速移動
: to run away suddenly and quickly逃跑;溜走
US : to suddenly leave a political party, team, etc.突然離開,脫離(政黨、團體等)
[no object]
[+ object]
: to fasten (something) tightly : to lock (something) with a bolt闩上
[+ object]
[no object]
[+ object] : to attach (something) firmly : to attach (something) with a bolt固定;用螺栓固定
[+ object] : to eat (food) quickly狼吞虎咽
often + down
3 bolt /ˈboʊlt/ adverb
3 bolt
/ˈboʊlt/
adverb
Learner's definition of BOLT
: with the back in a very straight position筆直地
IELTS BNC: 5051 COCA: 4899

bolt

1 of 5

noun (1)

1
a
: a lightning stroke
also : thunderbolt
b
: a shaft or missile designed to be shot from a crossbow or catapult
especially : a short stout usually blunt-headed arrow
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: the part of a lock that is shot or withdrawn by the key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 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
4
: a roll of cloth or wallpaper of specified length
5
: a metal cylinder that drives the cartridge into the chamber of a firearm, locks the breech, and usually contains the firing pin and extractor
6
a
: a block of timber to be sawed or cut
b
: a short round section of a log

Illustration of bolt

Illustration of bolt
  • bolt 3

bolt

2 of 5

verb (1)

bolted; bolting; bolts

intransitive verb

1
: to move suddenly or nervously : start
2
: to move or proceed rapidly : dash
3
a
: to break away from control or a set course
b
: to dart off or away : flee
4
: to break away from or oppose one's previous affiliation (as with a political party or sports team)
5
: to produce seed prematurely

transitive verb

1
: to secure with a bolt
bolt the door
2
: to attach or fasten with bolts
3
: to eat hastily or without chewing
bolted his breakfast
4
: to break away from or refuse to support (something, such as a political party)
5
: to say impulsively : blurt
6
a
: flush, start
bolt rabbits
b
archaic : shoot, discharge

bolt

3 of 5

adverb

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

bolt

4 of 5

noun (2)

: the act or an instance of bolting

bolt

5 of 5

verb (2)

bolted; bolting; bolts

transitive verb

1
: to sift usually through fine-meshed cloth
bolt flour
2
archaic : sift sense 2

Synonyms

Example Sentences

Word History

IELTS BNC: 5051 COCA: 4899
bolt

noun¹

1for fastening things together螺栓VERB + BOLT | PHRASES VERB + BOLTtighten, tighten up上緊螺栓loosen鬆開螺栓remove, undo, unscrew卸掉/擰開/旋出螺栓PHRASESnuts and bolts基本要點
bolt

noun²

2for fastening a door門閂VERB + BOLTdraw back, pull back, slide back拉開門閂push home, slide home插好門閂She closed the door quickly and pushed the bolts home.她快速關上門,插上門閂。
bolt

verb

ADVERB | PREPOSITION ADVERBfirmly, securely用螺栓緊緊固定住Make sure that the rails are securely bolted in place.務必確保欄杆都固定住了。together用螺栓固定在一起The two parts are bolted together.這兩部份用螺栓固定在一起。PREPOSITIONto用螺栓固定在⋯上The yacht's keel is bolted to the hull.遊艇的龍骨用螺栓固定在船身上。

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