A compass is a navigational tool that uses the Earth's magnetic field to determine direction. It typically consists of a magnetized needle that aligns with the Earth's magnetic north and south poles. By using a compass, individuals can orient themselves and find their way by following the cardinal directions of north, south, east, and west. The compass has been used for centuries by explorers, hikers, sailors, and outdoor enthusiasts to navigate and navigate accurately in various terrains and environments.