Autopilot (noun)

1. A device that automatically controls a vehicle or aircraft.
2. A mode of operation in which a machine or vehicle is controlled by automatic means.

Origin:

The word "autopilot" was first coined in the 1920s by an american inventor, it is a combination of the greek word "auto-" meaning "self" and the english word "pilot".

Examples:

1. The pilot switched on the autopilot and the plane flew on its own.
2. The ship's autopilot kept it on course during the storm.
3. The car's autopilot feature allows the driver to take their hands off the wheel.
4. The autopilot system helped the pilot navigate through difficult weather conditions.
5. The autopilot mode in the drone allow it to fly in a specific pattern or trajectory.