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Meaning of pileup

pile•up

Pronunciation: (pīl'up"), [key]
— n.
  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.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
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