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English definition of “fast”

fast

adjective (QUICK)    /fɑːst/ US  /fæst/
A1 moving or happening quickly, or able to move or happen quickly: fast cars a fast swimmer Computers are getting faster all the time. The fast train (= one that stops at fewer stations and travels quickly) to London takes less than an hour.Fast and rapidShort in time If your watch or clock is fast, it shows a time that is later than the correct time.Watches and clocks specialized art describes photographic film that allows you to take pictures when there is not much light or when things are moving quicklyPhotography fast and furious describes something that is full of speed and excitement: It's not a relaxing film - it's pretty fast and furious.Exciting and interesting Grammar:Fast, quick or quickly?Fast and quick mean moving with great speed. Fast is both an adjective and an adverb. Quick is an adjective and the adverb form is quickly.See more
(Definition of fast adjective (QUICK) from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
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