What do you call a small room with only a toilet?

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Tags

1. #bathroom
2. #abbreviation
3. #primarily
4. #closet
5. #bathing
6. #common
7. #known
8. #shower
9. #typically
10. #water
11. #without
12. #english
13. #reserved
14. #private
15. #british
16. #bathtub
17. #rooms
18. #often