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90% of the time, speakers of English use just 7,500 words in speech and writing. These words appear in red, and are graded with stars. One-star words are frequent, two-star words are more frequent, and three-star words are the most frequent.



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noun [countable] whistle pronunciation in British English /ˈwɪs(ə)l/
Word Forms
  1. 2
    the sound that someone makes when they force air through their mouth

    Loud cheers and whistles greeted the team.

    give/let out a whistle:

    Darren gave a low whistle.

    1. b.
      the sound that you make by blowing through a whistle

      Play stopped when we heard the whistle.

      the final whistle (=used for showing that a game or competition has finished):

      He scored again just seconds before the final whistle.

    2. c.
      the high sound that some birds make

      the skylark’s piercing whistle


… a teaching method in which groups of children learn independently using a computer linked to the internet

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a derogatory word used for referring to people in the banking and investment industry who are thought of as taking serious risks in order to increase their own earnings …

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