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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.

DUP MLA for Fermanagh and South Tyrone Deborah Erskine said the delays "have an impact upon motorists".

From BBC • May 23, 2026

When your trust turns irrevocable upon your death, it likely cannot be modified or terminated without the permission of the grantor’s beneficiaries.

From MarketWatch • May 23, 2026

“Basically, I’m wondering if the reaction is over, or, or if upon stopping the cooling mechanism, if it would re-initiate itself.”

From Los Angeles Times • May 23, 2026

He never flinched, instead taking it upon himself to bring up prominent women with alopecia.

From Slate • May 23, 2026

He was not set upon by unreasonable hordes or ambushed by sneaky types.

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




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