Wc is the abbreviation of Water Closet, which refers to toilet in China.

　　A long time ago, there was a water tank water closet in the Toilet toilet. When people mentioned water closet, they thought of toilet, so water closet became synonymous with toilet. Later, for convenience, people used the initial letter W.C. of water closet instead of toilet.

　　Wc refers to the snooker world championship:

　　Snooker World Championship is a snooker billiards competition, and the first competition was held in 1927. The venue has been changed many times, and now the venue of the competition is the Crucible Theatre.

　　No matter from the influence, bonus scale or professional ranking points, the annual world championship is the highest level of snooker.

　　Interpretation:

　　Abbr water closet; Weighted close; (Region) west central

　　Example:

　　The WC in Japan is the cleanest I he ever seen.

　　The toilets in Japan are the cleanest I have ever seen.