executive vs overseer

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. 

overseer

noun
  • An officer responsible for the care of the poor, making out lists of voters and those who had not paid taxes, etc. 

  • The manager of a plantation of slaves. 

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