A clothes hanger, coat hanger, or coathanger, is a device in the shape of:

• Human shoulders designed to facilitate the hanging of a coat, jacket, sweater, shirt, blouse or dress in a manner that prevents wrinkles, with a lower bar for the hanging of trousers or skirts.
• Clamp for the hanging of trousers, skirts, or kilts. Both types can be combined in a single hanger. (source)