client vs employee

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. 

employee

noun
  • An individual who provides labor to a company or another person. 

  • One way to encourage your employees to work harder is by giving them incentives. 

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