1. Cards. A sign made of wood or other materials: a house sign. street signs. brand. Credentials: Gold Medal. silver medal. waist card. Product trademark: Famous brand goods. A shield used by ancient soldiers to protect themselves during war or when modern police disperse demonstrators. shield.

2. Edition. A plate with text or graphics for printing: typesetting. copperplate. Each time a book is printed, it is called an edition: the first edition. Revised edition. Plywood used in building walls.

3. Dou. Wooden slips used for ancient writing. Official document; letter: document. Ruler slips.