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Synonyms

pile up

British  

verb

  1. to gather or be gathered in a pile; accumulate

  2. informal to crash or cause to crash

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

noun

  1. informal a multiple collision of vehicles

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
pile up Idioms  
  1. Accumulate, as in The leaves piled up in the yard , or He piled up a huge fortune . In this idiom pile means “form a heap or mass of something.” [Mid-1800s]

  2. Be involved in a crash, as in When the police arrived, at least four cars had piled up . [Late 1800s]


Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Seve has let the detritus of life pile up around him — literally — with delivery packages and plastic-wrapped clothes overrunning his tiny Baltimore apartment.

From Los Angeles Times • Mar. 25, 2026

When contradictions pile up, they are chalked up to style rather than substance.

From Salon • Mar. 2, 2026

Despite predictions she’d pile up the bucks, Talarico raised three times as much in his first weeks of declared candidacy as Crockett did in her equivalent launch period.

From The Wall Street Journal • Feb. 18, 2026

The levels of outstanding bills continue to pile up and wage and job growth is weaker.

From Barron's • Feb. 10, 2026

There she had arranged her headquarters and begun to pile up all the things she was preparing for her daughter’s arrival.

From "The House of the Spirits: A Novel" by Isabel Allende