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English definition of “hub”

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hub

noun [C]
 
 
/hʌb/
OF ACTIVITY a place that is the centre of a particular activity: [usually singular] Silicon Valley has become the hub of the electronics industry.Places and locationsUnpleasant places
WHEEL the round part in the centre of a wheelThe exterior of vehicles
(Definition of hub from the Cambridge Learners Dictionary © Cambridge University Press)
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