A W.C., or Water Closet, is a term commonly used to refer to a toilet or restroom. It is designed for the disposal of human waste and typically includes a bowl, a seat, and a flushing mechanism. The term originated in the 19th century and is often used in British English. W.C.s can be found in homes, public buildings, and various facilities. They are usually connected to a plumbing system that allows for the removal of waste and the supply of water for flushing. Modern W.C.s may also include features like bidets and automatic flushing systems for improved hygiene and convenience.