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English definition of “fast”

fast

adjective
 
 
/fɑːst/
QUICK A1 moving, happening, or doing something quickly: fast cars a fast swimmer Computers are getting faster all the time.Fast and rapidShort in time
TIME [never before noun] If a clock or watch is fast, it shows a time that is later than the correct time: My watch is five minutes fast. → See also a fast track (to sth)Watches and clocks
(Definition of fast adjective from the Cambridge Learners Dictionary © Cambridge University Press)
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