benevolence vs free lunch

benevolence

noun
  • A kind of forced loan or contribution levied by kings without legal authority, first so called under Edward IV in 1473. 

  • Charitable kindness. 

  • An altruistic gift or act. 

  • Disposition to do good. 

free lunch

noun
  • Something obtained without any payment, obligation or effort. 

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