Driver (noun)

1. A person who drives a vehicle, such as a car, truck, or bus.
2. A machine or device that makes something work, especially a computer program.
3. A golf club used to hit long shots from the tee.
4. A person or thing that drives or controls something else.
5. A person responsible for controlling the direction and speed of a vehicle.

Origin:

Late middle english: from drive + -er. the original sense was "driver of animals", later "person who drives a vehicle".

Examples:

1. He's a careful driver.
2. A driver for a delivery company.
3. A computer driver for a printer.
4. A driver for a taxi service.
5. A driver for a ride-sharing app.