chief vs executive

chief

noun
  • A leader or head of a group of people, organisation, etc. 

  • An informal term of address. 

  • The principal part or top of anything. 

  • An informal term of address for a Native American or First Nations man. 

  • The top part of a shield or escutcheon; more specifically, an ordinary consisting of the upper part of the field cut off by a horizontal line, generally occupying the top third. 

verb
  • To smoke cannabis. 

adj
  • Primary; principal. 

  • Intimate, friendly. 

executive

noun
  • A chief officer or administrator, especially one who can make significant decisions on their own authority. 

  • A process that coordinates and governs the action of other processes or threads; supervisor. 

  • The branch of government that is responsible for enforcing laws and judicial decisions, and for the day-to-day administration of the state. 

adj
  • Of, pertaining to, or having responsibility for the day-to-day running of an organisation, business, country, etc. 

  • Designed or fitted for execution, or carrying into effect. 

  • Exclusive. 

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