A pilot is a person that drives a transport vehicle such as an airplane, spacecraft, or boat. All types of pilots must pass tests and obtain a license before they can operate the vehicle.
An aircraft pilot is usually in charge of a flying machine for the whole trip. Some larger aircraft have both a pilot and a co-pilot so one can rest while the other works or both can work at busy times such as take-off and landing. Drone pilots usually stay on the ground and operate the machine by radio control. Sometimes one pilot handles several drones at the same time.