oratory vs place of worship

oratory

noun
  • A Roman Catholic chapel; a building for public or private worship that is not a parish church. 

  • Eloquence; the quality of artistry and persuasiveness in speech or writing. 

  • A private chapel or prayer room. 

  • A Catholic church belonging to the Oratory of Saint Philip Neri. 

  • The art of public speaking, especially in a formal, expressive, or forceful manner. 

place of worship

noun
  • A place, usually a building such as a church, mosque, synagogue or temple where believers can practise their faith. 

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