Longman Dictionary of Contemporary English homepage

Date: 1500-1600
Origin: Probably from HOB1

hub

 noun
     
Related topics: Daily Life, Technology
hub [countable]
1 the central and most important part of an area, system, activity etc, which all the other parts are connected to [= centre]
hub of
Birmingham is at the hub of Britain's motorway network.
the commercial hub of the region
2TD the central part of a wheel to which the axle is joined
Definition from the Longman Dictionary of Contemporary English
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