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fast

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adjective British English pronunciation: fast /fɑːst/ 
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adjectivefast
comparativefaster
superlativefastest
 
  1. 1
    able to move quickly

    Simon loves fast cars.

    a chance for runners to show how fast they are

    1. a.
      done quickly

      It was quite a fast journey.

      a fast drive/run

      a fast pace/tempo/speed:

      We were expected to work at a fast pace.

    2. b.
      done without waiting or delaying

      The government has promised a fast response to the crisis.

      We need fast and effective action to combat this problem.

    3. d.
      doing or able to do something quickly
      a fast reader/learner:

      I'm usually quite a fast learner.

  2. 3
    [not usually before noun] if a clock is fast, it shows a time that is later than the correct time

    My watch is a few minutes fast.

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