burst vs pile-up

burst

noun
  • A sudden, often intense, expression, manifestation or display. 

  • An act or instance of bursting. 

  • A series of shots fired from an automatic firearm. 

  • The explosion of a bomb or missile. 

verb
  • To cause to break from internal pressure. 

  • To break from internal pressure. 

  • To separate (printer paper) at perforation lines. 

  • To produce as an effect of bursting. 

  • To erupt; to change state suddenly as if bursting. 

  • To interrupt suddenly in a violent or explosive manner; to shatter. 

  • To enter or exit hurriedly and unexpectedly. 

pile-up

noun
  • An accumulation that occurs over time, especially one which is not welcome. 

  • A pile of tackling players. 

  • A pile of crashed vehicles due to a traffic accident. 

How often have the words burst and pile-up occurred in a corpus of books? (source: Google Ngram Viewer )