whereupon
Americanconjunction
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upon what or upon which.
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at or after which.
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Archaic. upon what?
adverb
Etymology
Origin of whereupon
First recorded in 1300–50, whereupon is from the Middle English word wherupon. See where, upon
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
A finely focused electron beam splits the gas molecules, whereupon parts of them change into a solid state and adhere to the desired location.
From Science Daily • Jan. 17, 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
François followed him up, whereupon he again retreated.
From "The Call of the Wild" by Jack London
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
