headteacher vs superintendent

headteacher

noun
  • The most senior teacher in a school who is responsible for its management and administration. 

superintendent

noun
  • The head of a Sunday school. 

  • A police rank used in Commonwealth countries, ranking above chief inspector, and below chief superintendent. 

  • A janitor. 

  • The manager of a building, usually a communal residence, who is responsible for keeping the facilities functional and often collecting rent or similar payments, either as also the building's landlord or on behalf of same. Often abbreviated "super". 

  • In some Protestant churches, a clergyman having the oversight of the clergy of a district. 

  • A person who is authorized to supervise, direct or administer something. 

adj
  • Overseeing; superintending. 

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