upon - definition and synonyms

 
 
 
preposition 

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/əˈpɒn/
  1. 1
    literary on or onto something

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

  2. 2
    formal used after some verbs with the same meaning as ‘on’

    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. 4
    if an event or time is upon you, it is going to happen very soon

    Christmas is almost upon us again.

  5. 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