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upon

[uh-pon, uh-pawn] / əˈpɒn, əˈpɔn /
PREPOSITION
at the time of
Synonyms


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.

Both countries have exchanged strikes for a second consecutive day, putting more strain on a fragile ceasefire arrived upon in April.

From BBC • Jun. 11, 2026

That left Wembanyama one flagrant foul away from an automatic suspension and the Knicks seized upon the moment of Spurs hesitation to mount a 13-0 scoring run.

From Barron's • Jun. 11, 2026

The new facility will be North Korea’s largest publicly known uranium enrichment site upon completion.

From The Wall Street Journal • Jun. 10, 2026

The lieutenant governor serves on various boards that oversee the University of California, California State University and community college systems, and can be called upon to break a tie in the state Senate.

From Los Angeles Times • Jun. 10, 2026

The spirit actions that Kate described, “the piano was sweetly played upon by spirit fingers, the guitar was played, then taken up and carried above our heads …” didn’t seem all that miraculous any longer.

From "American Spirits" by Barb Rosenstock




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