You have likely seen it countless times—on a hotel door in Paris, a train station in Rome, or an older building in your own city:
WC
Most people recognize it as a symbol for "restroom" or "bathroom." Yet surprisingly, many have never paused to wonder what those two letters actually stand for. And once you learn the answer, it clicks into place with a quiet sense of satisfaction.
What Does "WC" Stand For?
WC stands for Water Closet.
It is an older term, originally used to describe a small, enclosed room containing a flush toilet. Simple, descriptive, and practical—much like the invention it named.
Why Was It Called a "Water Closet"?
In the 19th century, indoor plumbing was a revolutionary convenience. Before modern bathrooms became standard:
Toilets were often located outdoors, in separate outbuildings
Bathing and washing typically happened in different rooms
Privacy and sanitation were handled in distinct spaces
When homes and public buildings began installing indoor flush toilets, these compact, dedicated rooms were naturally called water closets: a small, closet-like space housing a toilet that used water to flush waste away. The name was literal, functional, and clear.
Why Do So Many Places Still Use "WC" Today?
Though the term may sound old-fashioned to modern ears, it remains widely used around the world—particularly in international settings. You will often see WC on signage in:
European countries
Hotels and hostels
