[ pahyl-uhp ]
/ ˈpaɪlˌʌp /


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.

Nearby words

  1. pileolated warbler,
  2. pileous,
  3. pileous gland,
  4. piles,
  5. pileum,
  6. pileus,
  7. pilewort,
  8. pilfer,
  9. pilferage,
  10. pilgarlic

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. 2019