- driver⇄driver, noun.
1. a person who drives.
Ex. A cowboy who rounds up cattle is a driver.
2. a person who drives an automobile, horses, or a carriage.
Ex. The driver of the truck admitted that the accident was his fault (Time).
- driver⇄expr. in the driver's seat, in full control; in a commanding position.
Ex. In that business, the owner is really in the driver's seat.