Meaning of DRIVER in English
n.1 (often in comb.) a person who drives a vehicle (bus-driver; engine-driver).
2 Golf a club with a flat face and wooden head, used for driving from the tee.
3 Electr. a device or part of a circuit providing power for output.
4 Mech. a wheel etc. receiving power directly and transmitting motion to other parts.
Phrases and idioms:
in the driver's seat in charge.
Oxford English vocab. Оксфордский английский словарь. 2012