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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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preposition upon pronunciation in British English /əˈpɒn/
  1. 1
    literary on or onto something

    Shadows were flickering upon the studio floor.

    He believes we were put upon this earth for a purpose.

  2. 2
    formal used after some verbs with the same meaning ason

    A police patrol happened upon a robbery in a bank yesterday.

    They draw upon their experience to educate and guide new companies.

    My whole future depended upon the decision of this one manager.

    Synonyms and related words
  3. 3
    formal immediately after doing something or after something happens

    Barry had joined the army immediately upon leaving school.

    Upon his release, Davis went immediately to his mother’s.

  4. 5
    used between two nouns that are the same for emphasizing that there is a large number of the thing that you are mentioning

    I’ve written to you, year upon year, and never heard from you.

    We drove across mile upon mile of wide-open space.

    Synonyms and related words


… 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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