chief minister vs secretary

chief minister

noun
  • The leader of government in many semi-autonomous and constituent federal states. 

secretary

noun
  • The head of a department of government. 

  • A type of desk, secretary desk; a secretaire. 

  • A person who keeps records, takes notes and handles general clerical work. 

  • A secretary bird, a bird of the species Sagittarius serpentarius. 

  • A managerial or leading position in certain non-profit organizations, such as political parties, trade unions, international organizations. 

verb
  • To serve as a secretary of. 

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