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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

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

Police tracked her movements via social media and stopped her car, whereupon she told an officer, “We don’t got nothin’ to do with this!”

From Washington Times • Sep. 28, 2023

He snatched up the bawling lambs and ran from mother to mother until he made up the right pair, whereupon they would knock him out of the way in their hurry to nuzzle each other.

From "The Midwife's Apprentice" by Karen Cushman