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Definition of pileup - 2 dictionary results

pile⋅up

[pahyl-uhp]
–noun
1. a massive collision of several or many moving vehicles.
2. an accumulation, as of work, chores, or bills.
3. a rough or disorderly falling of people upon one another, as in a football game.

Origin:
1825–35; n. use of v. phrase pile up
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2009.
Cite This Source Link To pileup
pile·up or pile-up   (pīl'ŭp')   
n.  
  1. Informal A serious collision usually involving several motor vehicles.

  2. An accumulation: "the pile-up of unsold autos" (New York Times).

The American Heritage® Dictionary of the English Language, Fourth Edition
Copyright © 2009 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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