The term 'Door Device' can be summarized as a device used to attach a door to its frame. The most common type of door device is a HINGE, which is a five-letter word. Hinges are typically made of metal and have two parts that are connected by a pin or rod. When the door is opened, the two parts rotate around the pin, allowing the door to swing open and closed. Hinges are used on both interior and exterior doors and come in a variety of sizes and styles.