What is a room with just a toilet called?

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Tags

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