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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.

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

That is exactly what another academic study found upon measuring the stock market’s performance during World Cups between 1950 and 2007: The U.S. stock market produced an average loss of 2.6% during those tournaments.

From MarketWatch • Jun. 9, 2026

What fabulous representatives these are of the country that Europe once looked upon with gratitude and respect: clownish, crude and stupid all at once.

From Salon • Jun. 9, 2026

Plus, rows upon rows of makeshift tents and hammocks tied between trees.

From "Will’s Race for Home" by Jewell Parker Rhodes




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