executive vs sub-lieutenant

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. 

sub-lieutenant

noun
  • A commissioned officer of the navy ranking above an acting sub-lieutenant and below a lieutenant. 

  • A commissioned officer of the Royal Navy ranking above a midshipman and below a lieutenant. 

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