cubicle vs flush toilet

cubicle

noun
  • A small enclosure in a public toilet for individual use. 

  • A small separate part or one of the compartments of a room, especially in a work environment. 

  • A small enclosure at a swimming pool etc. used to provide personal privacy when changing. 

flush toilet

noun
  • A toilet that uses water to flush urine and feces through a pipe to another location, typically a sewer main in urban settings or a septic tank elsewhere. 

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