loo vs wash room

loo

noun
  • A lavatory: a room used for urination and defecation. 

  • An act that prompts such a penalty. 

  • A hot dust-bearing wind found in Bihar, Uttar Pradesh and the Punjab. 

  • A toilet: a fixture used for urination and defecation. 

  • Any group of people. 

  • The penalty paid to the pool in lanterloo for breaking certain rules or failing to take a trick. 

  • A lieutenant. 

  • A game of lanterloo. 

intj
  • A cry to urge on hunting dogs. 

verb
  • To urge on with cries of loo or (figuratively) by other shouting or outcry. 

  • To pay a penalty to the pool for breaking certain rules or failing to take a trick in lanterloo. 

  • To beat in the card game lanterloo. 

  • To pay any penalty to any community. 

wash room

noun
  • A bathroom, lavatory, toilet, restroom, or powder room. 

  • An unfurnished room within a building used for hand washing, bathing, laundry, dish washing, etc. 

  • A lavatory; a room designed and equipped for washing hands, normally fitted with basins or sinks, drains, and running water available from taps or faucets. 

  • A similarly equipped room in an institution, such as a hospital or school or manufactory, designated for washing hands, bathing, laundering, or a combination of such. 

  • A specially designed chamber in a laboratory or industrial plant designed for emergency bathing such as may be needed for human exposure to harmful chemicals and the like. 

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