A "water closet" is a term used to describe a small room or space that contains a toilet. It is often abbreviated as "WC" and is commonly found in homes, public restrooms, and commercial buildings. The primary function of a water closet is to provide a private area for individuals to use the toilet. Water closets can vary in design and features, but they typically include a toilet bowl, a flushing mechanism, and sometimes a small sink. They are an essential part of modern sanitation systems, helping to maintain hygiene and comfort in daily life. Related topics include plumbing, sanitation, and bathroom design.