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English definition of “driver”

driver

noun [C]     /ˈdraɪvər/
TRANSPORT someone who drives a vehicle: You may get nothing in an accident if the other driver is uninsured. a bus/lorry/truck driver
IT a computer program that makes it possible for a computer to use other pieces of equipment such as a printer: a printer driver
something that makes other things progress, develop, or grow stronger: Momentum-based investing is the most prominent of the new market drivers.an important/a key/a major driver of sth Service sector output is up 1.2% in the latest quarter making it, by far, the major driver of growth once more.
be in the driver's seat US →  be in the driving seat
(Definition of driver noun from the Cambridge Business English Dictionary © Cambridge University Press)
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