toilet (room) toilet (room) a toilet is a small room used for privately accessing the sanitation fixture (toilet) for urination and defecation. toilet rooms often include a sink (basin) with soap/handwash for handwashing, as this is important for personal hygiene. these rooms are typically referred to as "half-bathrooms" (half-baths; half of a whole or full-bathroom) in a private residence. this article is about rooms in private residences. for facilities outside the home, see public toilet. a small room with a flush toilet. a toilet brush (hidden in a decorative holder) and a toilet roll holder for toilet paper can be seen to the right of the flush toilet. this room is commonly known as a "bathroom" in american english, a lavatory or loo in the united kingdom, a "washroom" in canadian english, and by many other names across the english-speaking world. names