There are 4 definitions of bolt in English:

bolt1

Line breaks: bolt
Pronunciation: /bəʊlt
 
/

noun

1A large metal pin, in particular:
1.1A bar that slides into a socket to fasten a door or window.
More example sentences
  • He reached through the hole in the door and slid the bolt on the inside.
  • To reduce the risk of wandering, put a slide bolt high on every door that leads to the outside or to a stairwell, or use a deadbolt that requires a key.
  • We quickly unload cases, leave them with our bags and personal belongings in the store room and lock the door with the sliding bolt and padlock.
Synonyms
1.2A long pin with a head that screws into a nut, used to fasten things together.
More example sentences
  • Use only non-corrosive nails, bolts and screws to prevent staining.
  • Screws, nails and bolts can all be used in the assembly of the components.
  • Six million bolts hold the bridge together and not a single one has loosened since the bridge was opened in 1932.
Synonyms
1.3The sliding piece of the breech mechanism of a rifle.
More example sentences
  • They replaced the missing bolt in the one rifle and supplied new magazines for the two Camp Reed guns.
  • He pulled back the bolt of the rifle with a sharp snap to ready it.
  • However, with conventional guns, the standing breech acts as a bolt sealing off the rear of the chamber.
1.4 Climbing A long pin that is driven into a rock face so that a rope can be attached to it.
More example sentences
  • Determined not to let it ruin my trip, I ended up getting really good at using my left hand for climbing, and hammering in bolts and pitons.
  • She climbed with effortless grace and clipped the rope to the top bolt.
  • After tightening the bolt and clipping the rope in, I had nothing left to do than test my theory.
2A short, heavy arrow shot from a crossbow.
More example sentences
  • Crossbow bolts and arrows passed like clouds across the face of the sun.
  • Rich pulled the trigger of his crossbow and the bolt shot out.
  • They took five shotguns, a longbow, arrows, a crossbow and bolts.
Synonyms
arrow, quarrel, dart, shaft, missile, projectile
literary reed
3A jagged white flash of lightning.
More example sentences
  • A great bolt of white lightning flashed out of thin air.
  • A small bolt of lightning flashes, and the thunder follows soon after.
  • A bolt of lightning flashed across the horizon and lit the sky.
Synonyms
flash, shaft, streak, burst, discharge, flare, fulmination
archaic levin

verb

[with object] Back to top  
1Fasten with a bolt, in particular:
1.1Fasten (a door or window) with a bar that slides into a socket: all the doors were locked and bolted
More example sentences
  • That night, she made sure to double check the locks on all the windows and bolt the door.
  • Anybody who reads the newspapers regularly could be forgiven for locking and bolting the front door and resolving never to set foot outside again.
  • Kelley slipped off her heels with relief, locking and bolting the apartment door.
Synonyms
1.2 [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 figurative new benefits have been bolted on to the social security system
More example sentences
  • The frame is securely bolted to the workshop floor.
  • Each center piece was individually bolted to its matching end trusses, and then they too were joined by joists and covered with metal decking.
  • The scissors component was added, the platform was bolted on.
Synonyms
rivet, pin, clamp, peg, screw, batten, pinion; fasten, fix, secure

Origin

Old English, 'arrow', of unknown origin; related to Dutch bout and German Bolzen 'arrow, bolt for a door'.

Phrases

a bolt from (or out of) the blue

A sudden and unexpected event: the job came like a bolt from the blue
[with reference to the unlikelihood of a thunderbolt coming from a clear blue sky]
More example sentences
  • To much of the global community, the events of November 1938 came like a bolt out of the blue.
  • This accusation about Nicky has come like a bolt out of the blue.
  • It would be an understatement to say that it was a bolt out of the blue.
Synonyms
shock, surprise, bombshell, jolt, thunderbolt, revelation, source of amazement
informal turn-up for the books, shocker, whammy

bolt upright

With the back very straight: she sat bolt upright in bed
More example sentences
  • Sarah suddenly sat bolt upright in bed, sweat pouring down her forehead.
  • She woke up with a sudden start and sat bolt upright in bed.
  • My mother sat angrily bolt upright while they read Grandpa's will.
Synonyms
straight, rigidly, stiffly, completely upright

have shot one's bolt

informal Have done all that is in one’s power: Jean had shot her bolt as far as her Italian was concerned
More example sentences
  • You can put it down to lack of expertise in playing over five days, a woeful shortage of staying power or, quite simply, they had shot their bolt.
  • We have shot our bolt and couldn't now take similar action elsewhere, even if this were desirable.
  • I had waited all these years for him to slip up and now he has shot his bolt.

Definition of bolt in:

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Pronunciation: ˌsalməˈnazər
noun
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There are 4 definitions of bolt in English:

bolt2

Line breaks: bolt
Pronunciation: /bəʊlt
 
/

verb

1 [no object] (Of a horse or other animal) run away suddenly, typically from fear: the horses shied and bolted
More example sentences
  • Wearing traditional garb and astride a horse, her cover was blown when the beast bolted and threw her off, exposing her camera.
  • Wild animals shook at the sound of the hounds; deer bolted for the hills.
  • Suddenly a huge bang is heard and both horses bolt for it.
1.1 [no object, with adverbial of direction] (Of a person) move or run away suddenly in an attempt to escape: they bolted down the stairs
More example sentences
  • Buddy bolted, bounding down the driveway and across the street, heading right for me.
  • The tavern-master yelled at the figure bolting up the stairs.
  • He then felt a strong impulse coming from his stomach and he then bolted for the nearest bathroom, however he couldn't remember where one was.
Synonyms
dash, dart, run, sprint, hurtle, rush, hurry, fly, shoot, flash, spring, leap, bound, start; flee, abscond, escape, take flight, make a break/run for it, take to one's heels, beat a (hasty) retreat, clear out
informal tear, zoom, skedaddle, scram, beat it, leg it, scoot, make oneself scarce
British informal flit, scarper, do a bunk
North American informal hightail (it), take a powder, cut and run
1.2 [with object] (In hunting) cause (a rabbit or fox) to run from its burrow or hole: a ferret progresses through the holes bolting rabbits the rabbits can be bolted out
More example sentences
  • The terrier will either bolt the fox or drive it back to a stationary position.
  • We wait until the dog marks an occupied burrow then enter a ferret to hopefully bolt the rabbit.
  • Occasionally, our ferrets are taken along to bolt rabbits from their warrens so the birds can pursue them.
1.3(Of a plant) grow quickly upwards and stop flowering as seeds develop: the lettuces have bolted
More example sentences
  • By now most of your herbs have bolted to seed and should be re-planted.
  • The only caveat is they have a tendency to bolt to flower and seed as days become longer in spring.
  • Plants bolt quickly, too, so sow seeds in small batches every few weeks.
2 [with object] Eat (food) quickly: there’s no need to bolt your food
More example sentences
  • If we bolted our food and ran down the street, we might just catch him before he went off duty, and claim a penny on the empty bottle.
  • Arun seized the bowl and bolted the cold food himself, spurred both by hope and the fledgling's panting breaths.
  • People under stress may also bolt their food, creating extra work for their digestive juices.
Synonyms
gobble, gulp, wolf, guzzle, devour, gorge (oneself) on, eat greedily/hungrily
informal tuck into, put/pack away, demolish, polish off, scoff (down), down, stuff one's face with, pig oneself on, murder, shovel down
British informal shift, gollop
North American informal scarf (down/up), snarf (down/up), inhale

Origin

Middle English: from bolt1, expressing the sense 'fly like an arrow'.

Phrases

make a bolt for

Try to escape by moving suddenly towards (something): Ellie made a bolt for the door
More example sentences
  • They were gathered down one end of the pool so I decided to make a bolt for the far side.
  • The alarm went off and they made a bolt for it.
  • She thought about making a bolt for it, but the guy put his hand on her shoulder and whispered ‘Don't even think about it.’
Synonyms
dash, dart, run, sprint, rush, bound, leap, jump, spring, gallop

Definition of bolt in:

There are 4 definitions of bolt in English:

bolt3

Line breaks: bolt
Pronunciation: /bəʊlt
 
/

noun

1A roll of fabric, originally as a measure: the room was stacked with bolts of cloth
More example sentences
  • You can buy it from fabric stores that stock bolts of fabric, or you can order it from fabric books.
  • The traveling merchants usually stocked bolts of cloth and sewing notions such as needle and thread and had stands on which to measure the cloth.
  • Your closest quilt shop is getting new bolts of fabric in now.
Synonyms
roll, reel, spool, bundle, bale, parcel, packet, quantity, amount
2A folded edge of a piece of paper that is trimmed off to allow it to be opened, as on a section of a book.

Origin

Middle English: transferred use of bolt1.

Definition of bolt in:

There are 4 definitions of bolt in English:

bolt4

Line breaks: bolt
Pronunciation: /bəʊlt
 
/
(also boult)

verb

[with object] archaic
Pass (flour, powder, or other material) through a sieve: figurative the fanned snow that’s bolted by the northern blasts

Origin

Middle English: from Old French bulter, of unknown ultimate origin. The change in the first syllable was due to association with bolt1.

Definition of bolt in: