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pileup

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noun pile·up \ˈpī(-ə)l-ˌəp\

Simple 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

Source: Merriam-Webster's Learner's Dictionary

Full Definition of pileup

  1. 1 :  a collision involving usually several motor vehicles

  2. 2 a :  a jammed tangled mass or pile (as of motor vehicles or people) resulting from collision or accumulation b :  accumulation

Examples of pileup in a sentence

  1. A five-car pileup slowed traffic.

  2. <a pileup of e-mail messages that needed to be dealt with>



Circa 1929

First Known Use of pileup

circa 1929


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