fast Meaning, definition in Cambridge English Dictionary
Cambridge Dictionaries online Cambridge Dictionaries online

The most popular online dictionary and thesaurus for learners of English

Meaning of "fast" - English Dictionary

See all translations

fastadjective

uk   /fɑːst/  us   /fæst/

fast adjective (QUICK)

A1 moving or happening quickly, or able to move or happen quickly: fast cars a fast swimmer Computers are getting faster all the time.UK The fast train (= one that stops at fewer stations and travels quickly) to London takes less than an hour. If your watch or clock is fast, it shows a time that is later than the correct time. specialized art used to refer to photographic film that allows you to take pictures when there is not much light or when things are moving quicklyfast and furious used to describe something that is full of speed and excitement: It's not a relaxing movie - it's pretty fast and furious.
More examples

fast adjective (IMMORAL)

old-fashioned disapproving without moral principles: a fast crowd a fast woman

fast adjective (FIXED)

If the colour of a piece of clothing is fast, the colour does not come out of the cloth when it is washed.

fastadverb

uk   /fɑːst/  us   /fæst/
A2 quickly: The accident was caused by people driving too fast in bad conditions. You'll have to act fast. Children's publishing is a fast-growing business.
More examples

fastadverb, adjective

uk   /fɑːst/  us   /fæst/

fastnoun [C]

uk   /fɑːst/  us   /fæst/
a period of time when you eat no food: Hundreds of prisoners began a fast in protest about prison conditions.

fastverb [I]

uk   /fɑːst/  us   /fæst/
to eat no food for a period of time: One day a week he fasts for health reasons.
(Definition of fast from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
What is the pronunciation of fast?
Add Cambridge dictionaries to your browser to your website

Definitions of “fast” in other dictionaries

Word of the Day
like

to enjoy or approve of something or someone

Word of the Day

July 4th, Bastille Day, and the language of revolution.
July 4th, Bastille Day, and the language of revolution.
by Liz Walter,
July 01, 2015
With America’s Independence Day on the 4th and France’s Bastille Day on the 14th, July certainly has a revolutionary theme, so this blog looks at words and phrases we use to talk about the dramatic and nation-changing events that these days celebrate. In particular, it focuses on one of the most important

Read More 

burger noun
burger noun
June 29, 2015
a menu on a computer screen comprising three short parallel horizontal lines which the user clicks to see options Definitely use a burger. You could put the settings in the burger menu too. Fix the settings to the bottom of the burger menu and use a vertically scrolling contact list that scrolls behind

Read More