The phrase "driver's seat" refers to the position of control in a vehicle. There are several synonyms for this term, including behind the wheel, in the saddle, in command, in control, at the helm, at the controls, and driving. These words all convey the idea of being in charge of a vehicle and having the power to direct its movements. Other related terms include the cockpit, dashboard, and steering wheel, which are all key components of a vehicle's control interface. In any case, the driver's seat represents a position of responsibility and authority, where decisions and actions can have significant consequences for oneself and others on the road.