One who or that which defends or protects by warding off harm
- A guard over each wheel of a motor vehicle, for example, that is shaped and positioned so as to block the splashing of water or mud.
- A device at the front end of a locomotive or streetcar designed to push aside obstructions.
- A cushioning device, such as a bundle of rope or a piece of timber, used on the side of a vessel or dock to absorb impact or friction.
- A screen or metal framework placed in front of a fireplace to keep hot coals and debris from falling out.