: 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
What made you want to look up pileup? Please tell us where you read or heard it (including the quote, if possible).
Take Our 10-Question Quiz
The commonly misspelled words quiz
How strong is your vocabulary?
The Vocab Quiz Game for iPhone & iPad
"Incredibly fun and addictive. And informative!" User Review, iTunes