pile·​up | \ ˈpī(-ə)l-ˌəp How to pronounce pileup (audio) \

Definition of pileup

1 : a collision involving usually several motor vehicles
2a : a jammed tangled mass or pile (as of motor vehicles or people) resulting from collision or accumulation

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Examples of pileup in a Sentence

A five-car pileup slowed traffic. a pileup of e-mail messages that needed to be dealt with

Recent Examples on the Web

New Hampshire, meanwhile, should be on alert for a lower-tier candidate pileup. Victoria Mcgrane, BostonGlobe.com, "When candidates collide? Democrats are running into each other on the campaign trail," 3 July 2019 The Japanese companies will then propose specialized plans for different areas of Southeast Asia to contend with various issues like the trash pileups in Philippine cities or polluted groundwater in Vietnam and Indonesia. Ephrat Livni, Quartz, "Japan wants to become Southeast Asia’s trash manager," 23 June 2019 Center jams are unraveled from the downriver end of the pileup. Popular Mechanics Editors, Popular Mechanics, "The Lost Art of Floating Logs Down the River," 16 Feb. 2019 In Michigan, more than 50 vehicles, including car and semi-trailer trucks, were involved in a pileup on icy I-94 east of Kalamazoo, according to local media. Doug Stanglin, USA TODAY, "Chicago in bullseye as heavy winter storms pummel Midwest, Great Lakes," 9 Feb. 2018 Recycling is a practice meant to extend the life of Alaska’s landfills and combat a steady pileup of global waste that is contaminating natural resources. Devin Kelly, Anchorage Daily News, "How to recycle like a pro in Anchorage," 7 June 2019 The Chernobyl nuclear disaster, now streaming on HBO, is portrayed here as the deadly highway pileup of all that was wrong with the Soviet system, as radioactivity polluted Europe. Robert Sullivan, Vogue, "Meeting Gorbachev, Werner Herzog's Documentary, Is a Historical Thriller for Today," 27 May 2019 In 2014, Morgan was a traveling on the New Jersey Turnpike when his limousine was hit from behind by a Walmart truck, leading to a six-vehicle pileup. Cicero Estrella, The Mercury News, "Tracy Morgan gets in car accident after driving off dealership in $2-million Bugatti," 4 June 2019 According to the Ice Dam Removal Guys, snow should be removed about every six inches of pileup. Taylor Mead, House Beautiful, "The Polar Vortex Could Severely Damage Your Home," 1 Feb. 2019

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'pileup.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of pileup

1900, in the meaning defined at sense 1

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Statistics for pileup

Last Updated

7 Jul 2019

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Time Traveler for pileup

The first known use of pileup was in 1900

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English Language Learners Definition of pileup

: an accident in which several or many vehicles crash into each other
: a large amount of something that has increased gradually over a period of time

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More from Merriam-Webster on pileup

Rhyming Dictionary: Words that rhyme with pileup

Thesaurus: All synonyms and antonyms for pileup

Spanish Central: Translation of pileup

Comments on pileup

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