A bathroom is a room in the home for personal hygiene activities, generally containing a sink (basin) and either a bathtub, a shower, or both. It may also contain a toilet. In some countries, the toilet is usually included in the bathroom, whereas other cultures consider this insanitary or impractical, and give that fixture a room of its own. The toilet may even be outside of the home in the case of pit latrines. It may also be a question of available space in the house whether the toilet is included in the bathroom or not.
Historically, bathing was often a collective activity, which took place in public baths. In some countries the shared social aspect of cleansing the body is still important, as for example with sento in Japan and the “Turkish bath” (also known by other names) throughout the Islamic world.
In North American English the word “bathroom” may be used to mean any room containing a toilet, even a public toilet (although in the United States this is more commonly called a restroom and in Canada a washroom).
The term for the place used to clean the body varies around the English-speaking world, as does the design of the room itself. A full bathroom is generally understood to contain a bath or shower (or both), a toilet, and a sink. An ensuite bathroom or ensuite shower room is attached to, and only accessible from, a bedroom. A family bathroom, in British estate agent terminology, is a full bathroom not attached to a bedroom, but with its door opening onto a corridor. A Jack and Jill bathroom (or connected bathroom) is situated between and usually shared by the occupants of two separate bedrooms. It may also have two wash basins. A wetroom is a waterproof room usually equipped with a shower; it is designed to eliminate moisture damage and is compatible with underfloor heating systems.