House of Lords vs Senate

House of Lords

name

  • The upper chamber of the UK's Houses of Parliament. 

noun

  • A urinal. 

Senate

name

  • The Senate of Canada; the upper house of the Canadian parliament; "the Senate". 

  • Any of several legislative bodies. (In countries which have multiple legislative bodies, the Senate is often the more senior.) 

  • The United States Senate. 

  • The upper legislative body of many of the states of the United States. 

  • The council that governed the ancient Roman Republic. 

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