- upon
- up|on [ ə`pan ] preposition ***1. ) on LITERARY on or onto something:Shadows were flickering upon the studio floor.He believes we were put upon this earth for a purpose.2. ) used after some verbs instead of on FORMAL used after some verbs with the same meaning as on :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.3. ) immediately after FORMAL immediately after doing something or after something happens:His first act upon taking office was to repeal the luxury tax.Upon his release, Davis went immediately to his mother's.4. ) happening soon if an event or time is upon you, it is going to happen very soon:The fall TV season is upon us.5. ) used for emphasizing an amount 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.
Usage of the words and phrases in modern English. 2013.