noun

hub

Translation

hub, center, focal point

The airport is a major international hub.

The city is a hub of innovation.

The hub of the wheel was broken.

a ((of sth.)) the central or most important part of a place or activity The city is a hub of innovation.

a ((for sth.)) a place that is a center for a particular activity or transport system The airport is a hub for international flights.

Synonyms: center, core, pivot, nexus

Originally meant the central part of a wheel. Its meaning expanded metaphorically.

Picture a bicycle wheel: all the spokes connect to the central 'hub'.