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Definitions

whereupon

[hwair-uh-pon, -pawn, wair-, hwair-uh-pon, -pawn, wair-] / ˌʰwɛər əˈpɒn, -ˈpɔn, ˌwɛər-, ˈʰwɛər əˌpɒn, -ˌpɔn, ˈwɛər- /


ADVERB
upon which
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.

Trump announced last month the closure of the Kennedy Center for renovations starting July 4, "whereupon we will simultaneously begin Construction of the new and spectacular Entertainment Complex," he wrote on his Truth Social platform.

From Barron's • Mar. 16, 2026

As is the custom for scoring plays, the on-field touchdown call was reviewed by NFL replay officials, whereupon it was decided that Likely’s catch wasn’t a catch.

From The Wall Street Journal • Dec. 9, 2025

The plea agreement was all but signed, sealed and delivered when it was presented in a Delaware federal court in July 2023, whereupon it stood to be swiftly consummated 999 times out of 1,000.

From Los Angeles Times • Jun. 11, 2024

Arabica formed as a natural hybridization between Coffea canephora and Coffea eugenioides, whereupon it received two sets of chromosomes from each parent.

From Science Daily • Apr. 15, 2024

He shook his head and in a single motion of disgust scooped up the clay and slapped it back onto the wheel, whereupon it collapsed into an oafish lump again, as if ashamed.

From "A Single Shard" by Linda Sue Park