debt vs revenue

debt

noun
  • An action at law to recover a certain specified sum of money alleged to be due 

  • Money that one person or entity owes or is required to pay to another, generally as a result of a loan or other financial transaction. 

  • An action, state of mind, or object one has an obligation to perform for another, adopt toward another, or give to another. 

  • The state or condition of owing something to another. 

revenue

noun
  • A return; something paid back. 

  • All income generated for some political entity's treasury by taxation and other means. 

  • The net income from normal business operations; net sales. 

  • The income returned by an investment. 

  • The total sales; turnover. 

  • The total income received from a given source. 

verb
  • To supply with revenue. 

  • To generate revenue. 

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