spa vs washroom

spa

noun
  • A hot tub. 

  • A trendy or fashionable resort. 

  • A convenience store. 

  • A health resort near a mineral spring or hot spring. 

  • A health club. 

  • A clumsy person (see spastic) 

  • An idiot; a gobshite 

washroom

noun
  • A room intended to wash the face and hands. 

  • A room with a toilet, particularly a public toilet. 

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