client vs commission agent

client

noun
  • A customer, a buyer or receiver of goods or services. 

  • The role of a computer application or system that requests and/or consumes the services provided by another having the role of server. 

  • A person who receives help or services from a professional such as a lawyer or accountant. 

  • A person who employs or retains an attorney to represent him or her in any legal matter, or one who merely divulges confidential matters to an attorney while pursuing professional assistance without subsequently retaining the attorney. 

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 client and commission agent occurred in a corpus of books? (source: Google Ngram Viewer )