lack vs revenue

lack

verb
  • To be short (of or for something). 

  • To be without, not to have, to need, to require. 

noun
  • A deficiency or need (of something desirable or necessary); an absence, want. 

revenue

noun
  • 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. 

  • A return; something paid back. 

  • The total income received from a given source. 

verb
  • To supply with revenue. 

  • To generate revenue. 

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