democracy vs plebiscite

democracy

noun
  • A state with a democratic system of government. 

  • Rule by the people, especially as a form of government; either directly or through elected representatives (representative democracy). 

  • A government under the direct or representative rule of the people of its jurisdiction. 

  • Belief in political freedom and equality; the "spirit of democracy". 

plebiscite

noun
  • A referendum, especially one that concerns changes in sovereignty 

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