house of worship vs synagogue

house of worship

noun
  • A religious edifice; a mosque, church, synagogue, temple, or similar place where believers go to practice their faith. 

synagogue

noun
  • A place of worship for Jews or Samaritans. 

  • A congregation of Jews or Samaritans for the purpose of worship or religious study. 

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