centralized vs municipal

centralized

adj
  • Having power concentrated in a single, central authority 

  • Having things physically towards the center; consolidated or concentrated 

municipal

adj
  • Of or pertaining to a municipality (a city or a corporation having the right of administering local government). 

  • Of or pertaining to the internal affairs of a nation. 

noun
  • A financial instrument issued by a municipality. 

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