pileup
Americannoun
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a massive collision of several or many moving vehicles.
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an accumulation, as of work, chores, or bills.
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a rough or disorderly falling of people upon one another, as in a football game.
Etymology
Origin of pileup
First recorded in 1825–35; noun use of verb phrase pile up
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.
In Russia, wheat prices have fallen around 40% over the past four months because of the pileup of stored grain, according to Arkady Zlochevsky, president of the Russian Grain Union.
From The Wall Street Journal ● Sep. 24, 2026
And so there has been a pileup of ignominy referred to a busier-than-ever Ethics Committee.
From Slate ● Apr. 16, 2026
In my family, birthdays arrive in a cheerful pileup.
From Salon ● Feb. 3, 2026
A three-mile stretch of Highway 99 was closed for more than five hours Saturday after dense fog led to a massive vehicle pileup in Tulare County, about 40 miles north of Bakersfield.
From Los Angeles Times ● Jan. 31, 2026
Traffic would be heavy on the bridge due to an accident, and because we were paid for travel time, we'd hope that the pileup involved at least one piece of heavy machinery.
From "Me Talk Pretty One Day" by David Sedaris
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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.