| Language: | Old English |
| Origin: | fæst 'firm' |
1 moving or able to move quickly :
a fast car
He's one of the fastest runners in the world.
moving quickly
a fast car
He's one of the fastest runners in the world.2 doing something or happening in a short time :
The subway is the fastest way to get downtown.
The company must give a faster response to clients' requests.
The rainforests are being chopped down at an alarmingly fast rate.
I'm a fast learner.
in a short time
The subway is the fastest way to get downtown.
The company must give a faster response to clients' requests.
The rainforests are being chopped down at an alarmingly fast rate.
I'm a fast learner.3 a clock that is fast shows a later time than the real time :
That can't be the time - my watch must be fast.
clock
[not before noun]
That can't be the time - my watch must be fast.4 a way of achieving something more quickly than is normally done
a young actress on the fast track to fame and success
fast track
a young actress on the fast track to fame and success6 a film or lens (2) that can be used when there is little light, or when photographing something that is moving very quickly
fast film/lens
TCP8 a fast surface is one on which a ball moves very quickly
sports
DS9 done very quickly with a lot of effort and energy, or happening very quickly with a lot of sudden changes :
Arsenal's opening attack was fast and furious.
fast and furious
Arsenal's opening attack was fast and furious.10 used to say that someone can get what they want very quickly, especially in starting a sexual relationship with another person
somebody is a fast worker
informal12 becoming involved quickly in sexual relationships with men :
fast cars and fast women
woman
old-fashioned
fast cars and fast women ➔ fast food, fast-forward, fast lane

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