Pane is a term used to refer to a SHEET of GLASS, a DADO, a type of Italian bread, and a casement piece. A SHEET is a flat piece of material, usually paper or fabric, that is used for various purposes. GLASS is a transparent material made from sand, soda, and lime. A DADO is a groove cut into a wall or other surface for decorative or structural purposes. Italian bread is a type of bread made with flour, water, salt, and yeast. Casement pieces are parts of a window frame that open outward.