pileup

or pile-up

[ pahyl-uhp ]

/ ˈpaɪlˌʌp /

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See synonyms for pileup on Thesaurus.com

noun

a massive collision of several or many moving vehicles.

an accumulation, as of work, chores, or bills.

a rough or disorderly falling of people upon one another, as in a football game.

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Origin of pileup

First recorded in 1825–35; noun use of verb phrase pile up

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2022

How to use pileup in a sentence

“I think for trans men who are dating every time they hook up they have another coming out,” Sandler said.
Grindr’s Trans Dating Problem|David Levesley|January 9, 2015|DAILY BEAST
In that photo, Merabet has a big smile that spreads across his whole face and lights up his eyes.
The Muslim Cop Killed by Terrorists|Michael Daly|January 9, 2015|DAILY BEAST
We won't find out this season, though it comes up occasionally.
‘Archer’ Creator Adam Reed Spills Season 6 Secrets, From Surreal Plotlines to Life Post-ISIS|Marlow Stern|January 8, 2015|DAILY BEAST
Kickstarter is one start-up platform that seems to have realized the danger.
Design Your Own Dinosaur: The Era of Custom DNA|Justin Jones|January 8, 2015|DAILY BEAST

The most recent issue contains detailed instructions for building car bombs, and the magazine frequently draws up hit-lists.
U.S. Spies See Al Qaeda Fingerprints on Paris Massacre|Shane Harris, Nancy A. Youssef|January 8, 2015|DAILY BEAST
What need to look to right or left when you are swallowing up free mile after mile of dizzying road?
The Joyous Adventures of Aristide Pujol|William J. Locke
Most of the men leaped up, caught hold of spears or knives, and rushed out.
The Giant of the North|R.M. Ballantyne
Some weeks after, the creditor chanced to be in Boston, and in walking up Tremont street, encountered his enterprising friend.
The Book of Anecdotes and Budget of Fun;|Various
In less than ten minutes, the bivouac was broken up, and our little army on the march.
Blackwood's Edinburgh Magazine, No. CCCXXXIX. January, 1844. Vol. LV.|Various
The bride elect rushes up to him, and so they both step down to the foot-lights.
Physiology of The Opera|John H. Swaby (AKA "Scrici")

British Dictionary definitions for pileup

pile up

verb (adverb)

to gather or be gathered in a pile; accumulate

informal to crash or cause to crash

noun pile-up

informal a multiple collision of vehicles

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Other Idioms and Phrases with pileup

pile up

Accumulate, as in The leaves piled up in the yard, or He piled up a huge fortune. In this idiom pile means “form a heap or mass of something.” [Mid-1800s]

Be involved in a crash, as in When the police arrived, at least four cars had piled up. [Late 1800s]