Longman Dictionary of Contemporary English homepage

Date: 1300-1400
Origin: Probably from the sound

crash

1 verb
     
crash1
1

car/plane etc

[intransitive and transitive]TT to have an accident in a car, plane etc by violently hitting something else [↪ collide]:
The jet crashed after take-off.
crash into/onto etc
The plane crashed into a mountain.
crash a car/bus/plane etc
He was drunk when he crashed the car.
2

hit somebody/something hard

[intransitive,transitive always + adverb/preposition]TT to hit something or someone extremely hard while moving, in a way that causes a lot of damage or makes a lot of noise
crash into/through etc
A brick crashed through the window.
We watched the waves crashing against the rocks.
The plates went crashing to the ground.
A large branch came crashing down.
3

loud noise

[intransitive]C to make a sudden loud noise:
Thunder crashed and boomed outside.
4TD

computer

[intransitive and transitive]TD if a computer crashes, or if you crash the computer, it suddenly stops working:
The system crashed and I lost three hours' worth of work.
5

financial

[intransitive]BFS if a stock market or shares crash, they suddenly lose a lot of value
6

sport

[intransitive] British English to lose very badly in a sports event:
Liverpool crashed to their worst defeat of the season.
7

sleep

[intransitive] spoken
a) to stay at someone's house for the night:
Can I crash at your place on Saturday night?
b) also crash out to go to bed, or go to sleep very quickly, because you are very tired:
I crashed out on the sofa this afternoon.
8

party

[transitive] informal to go to a party that you have not been invited to:
We crashed Joe's party yesterday.
9

crashing bore

British English old-fashioned someone who is very boring

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