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Definitions

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 750ml No1 Royal Deeside Mineral Water and the sparkling variety are being recalled "because of the possible presence of glass fragments upon opening the bottles," which the FSA said "may cause injury and makes it unsafe to drink".

From BBC

Executing upon user requests is resource intensive, and many people don’t pay at all for chatbots.

From MarketWatch

Upon entering the home, guests are greeted with an expansive living area, complete with expansive glass doors that give way to the exterior and allow natural light to flood inside, alongside a cozy fireplace situated inside a marble mantle.

From MarketWatch

“Honestly, I was just shocked,” Hill said upon learning of Sheppard’s departure.

From Los Angeles Times

India celebrated his space trip with much fervour – posters of his face decorated his hometown where he was welcomed with a grand parade upon his return.

From BBC