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.
Had that information been shared, Adam's parents say he could have been tested, whereupon he would have been diagnosed with the same genetic condition and measures put in place to reduce his risk.
From BBC • May 22, 2026
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
It’s relevant only after a state has brought its own case, whereupon the Justice Department has to consider whether that prosecution serves the federal interest.
From Los Angeles Times • Aug. 9, 2024
Harry hastily untied it and sat down to read, whereupon Hedwig fluttered onto his knee, hooting softly.
From "Harry Potter And The Goblet Of Fire" by J. K. Rowling
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.
