buy vs spend

buy

verb
  • To obtain (something) in exchange for money or goods. 

  • To make a purchase or purchases, to treat (for a drink, meal or gift) 

  • To make a bluff, usually a large one. 

  • To bribe. 

  • To be equivalent to in value. 

  • To obtain, especially by some sacrifice. 

  • to accept as true; to believe 

noun
  • Something which is bought; a purchase. 

spend

verb
  • To pay out (money). 

  • To waste or wear away; to be consumed. 

  • To bestow; to employ; often with on or upon. 

  • To exhaust, to wear out. 

  • To be diffused; to spread. 

  • To consume, to use up (time). 

  • To break ground; to continue working. 

noun
  • Discharged semen. 

  • Expenditures; money or pocket money. 

  • Vaginal discharge. 

  • Amount of money spent (during a period); expenditure. 

How often have the words buy and spend occurred in a corpus of books? (source: Google Ngram Viewer )