asylum vs hideaway

asylum

noun
  • A place of safety or refuge. 

  • The protection, physical and legal, afforded by such a place (as, for example, for political refugees). 

hideaway

noun
  • a hiding place, somewhere one can go to get away from other people 

adj
  • Capable of being stored out of sight when not in use. 

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