fort vs palace

fort

noun
  • A fortified defensive structure stationed with troops. 

  • Any permanent army post. 

  • An outlying trading-station, as in British North America. 

  • A structure improvised from furniture, bedding, etc., for playing games. 

verb
  • To create a fort, fortifications, a strong point, or a redoubt. 

palace

noun
  • Official residence of a head of state or other dignitary, especially in a monarchical or imperial governmental system. 

  • A large and lavishly ornate residence. 

  • A large, ornate public building used for entertainment or exhibitions. 

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