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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.

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

From The Wall Street Journal • Jun. 10, 2026

In moments when opportunity is cloaked in nuance, we have long relied upon John Marshall, Goldman Sachs’ derivatives strategist.

From Barron's • Jun. 10, 2026

“It won’t be easy at all,” South Africa coach Hugo Broos said last December upon learning his team would debut against one of the hosts.

From Los Angeles Times • Jun. 9, 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

“I used this telescope,” she said, flying over to the ship’s bow and perching upon a long brass tube mounted on a tripod.

From "The Very, Very Far North" by Dan Bar-el




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