Washrooms go by many names worldwide, including restroom, loo, and in some cases, WC. However, not everyone knows what WC stands for. A TikToker recently revealed that WC means “water closet,” a term from the 1870s when toilets were often placed in small, closet-like spaces. The revelation sparked surprise and debate online, with many people admitting they had no idea what WC meant before.

Despite its current association with public toilets, “water closet” has its origins in 19th-century England. In the 1870s, the term referred to a small room containing a flushing toilet, which was considered a modern innovation at the time. As indoor plumbing became more common, the term was shortened to “WC” and widely adopted across Europe and other regions.

Many social media users expressed surprise at the meaning of the WC sign, as it is often used without further explanation, especially in countries outside of Europe.

Today, the WC sign continues to be prevalent, especially in hotels and older buildings. Although some people may not know its origin, the symbol has become synonymous with a public toilet, recognized in many parts of the world.

This small piece of history shows how language evolves and how certain terms endure even when their original meanings become obscure over time.