Meaning of “driver” in the English Dictionary

"driver" in English

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drivernoun [ C ]

uk /ˈdraɪ.vər/ us /ˈdraɪ.vɚ/

(Definition of “driver” from the Cambridge Advanced Learner’s Dictionary & Thesaurus © Cambridge University Press)

"driver" in American English

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drivernoun [ C ]

us /ˈdrɑɪ·vər/

someone who drives a motor vehicle:

a bus driver

(Definition of “driver” from the Cambridge Academic Content Dictionary © Cambridge University Press)

"driver" in Business English

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drivernoun [ C ]

uk /ˈdraɪvər/ us

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

(Definition of “driver” from the Cambridge Business English Dictionary © Cambridge University Press)