Washroom (noun)

1. A room equipped with facilities for washing and using the toilet.
2. A restroom or lavatory.

Origin:

The word "washroom" is a combination of the noun "wash" meaning to clean something with water and a cleaning agent and "room" meaning an area enclosed by walls. it refers to a room where people can go to clean themselves, typically with facilities such as sinks, toilets and showers.

Examples:

1. The washroom was located at the end of the hall.
2. The washroom was equipped with a toilet, a sink and a shower.
3. The public washroom was dirty and smelled bad.
4. The washroom on the airplane was small and cramped.
5. She went to the washroom to freshen up before the meeting.