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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.

Upon being informed of the painting's existence, Brand launched his own investigation.

From BBC • May 11, 2026

Upon arrival, firefighters encountered heavy smoke and flames.

From Los Angeles Times • May 10, 2026

Upon arrival, passengers and crew will be examined, treated if needed and then moved to their home countries.

From MarketWatch • May 6, 2026

Upon their arrival, immigrants would need help translating documents, writing letters, sending remittances and accessing credit.

From The Wall Street Journal • May 5, 2026

Upon reaching Greece they disbanded, each hero going to his home, and Jason with Medea took the Golden Fleece to Pelias.

From "Mythology: Timeless Tales of Gods and Heroes" by Edith Hamilton




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