n.1. a. A hat of cloth or straw, often held in place by ribbons tied under the chin and traditionally worn by women and children.
b. Scots A brimless cap traditionally worn by men or boys.
2. A removable metal plate over a machine part, such as a valve.
3. Chiefly British The hood of an automobile.
4. a. A windscreen for a chimney.
b. A cover for a fireplace.
5. Nautical A strip of canvas laced to a fore-and-aft sail to increase sail area.