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Synonyms

upon

American  
[uh-pon, uh-pawn] / əˈpɒn, əˈpɔn /

preposition

  1. up and on; upward so as to get or be on.

    He climbed upon his horse and rode off.

  2. in an elevated position on.

    There is a television antenna upon every house in the neighborhood.

  3. in or into complete or approximate contact with, as an attacker or an important or pressing occasion.

    The enemy was upon us and our soldiers had little time to escape. The Christmas holiday will soon be upon us and we have hardly begun to buy gifts. The time to take action is upon us.

  4. immediately or very soon after.

    She went into mourning upon her husband's death.

  5. on the occasion of.

    She was joyful upon seeing her child take his first steps.

  6. on (in any of various senses, used as an equivalent of on with no added idea of ascent or elevation, and preferred in certain cases only for euphonic or metrical reasons).

    He swore upon his honor as a gentleman.


upon British  
/ əˈpɒn /

preposition

  1. another word for on

  2. indicating a position reached by going up

    climb upon my knee

  3. imminent for

    the weekend was upon us again

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

upon Idioms  
  1. see act on (upon); call on (upon); chance on (upon); come across (upon); come on (upon); count on (upon); dawn on (upon); dwell on (upon); enter on (upon); fall back on (upon); fall on (upon); grow on (upon); hard on (upon); hit on (upon); incumbent upon; light on (upon); once upon a time; pitch on (upon); play on (upon); put upon; seize on (upon); set at (upon); take it upon oneself; wait on (upon); weigh on (upon); work on (upon).


Etymology

Origin of upon

First recorded in 1150–1200; Middle English; up (adverb) + on (preposition)

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

SAG-AFTRA’s recognition on Sunday is one of several lifetime achievement awards bestowed upon the actor over his extensive six-decade career, which is defined by two of Hollywood’s biggest film franchises.

From Los Angeles Times

The author drops us into an Eden of wonder, where once upon a time we first cracked the codes of Dr. Seuss and “Goodnight Moon.”

From The Wall Street Journal

Upon his death, many observers expected greater power for the Revolutionary Guards, which are deeply entrenched in the Iranian economy.

From Barron's

Attorney’s Office for the Southern District of New York served upon the bankruptcy trustee a grand jury subpoena seeking certain information and documents.

From Los Angeles Times

Upon releasing the files to the public earlier this year, Deputy Attorney General Todd Blanche reiterated the point.

From The Wall Street Journal