commercial vs commission agent

commercial

noun
  • A commercial trader, as opposed to an individual speculator. 

  • A male prostitute. 

  • An advertisement in a common media format, usually radio or television. 

adj
  • Designating such an airplane flight. 

  • Of or pertaining to commerce. 

  • Designating an airport that serves passenger and/or cargo flights. 

commission agent

noun
  • A merchant earning a commission by selling goods belonging to others. 

  • An agent entrusted with the possession of goods to be sold in the agent's name. 

  • A person entrusted with a confidential task, often secretly to place a bet. 

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