operation vs term of address

operation

noun
  • A business or organization. 

  • The method or practice by which actions are done. 

  • The act or process of operating; agency; the exertion of power, physical, mechanical, or moral. 

  • A procedure for generating a value from one or more other values (the operands); 

  • A military campaign (e.g. Operation Desert Storm) 

  • A planned undertaking. 

  • a function which maps zero or more (but typically two) operands to a single output value. 

  • The method by which a device performs its function. 

  • A surgical procedure. 

term of address

noun
  • A word or phrase used to address or refer to someone or something without using his, her, or its name. 

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