hub

The word “hub” means the central part of a wheel, around which it turns. In plain terms, a central point that everything else connects to or revolves around — literally on a wheel, or figuratively for a place, business, or network.

“Hub” is pronounced huhb (/hʌb/ in IPA).

Here is “hub” used in a sentence: “The mechanic greased the wheel hub before refitting the tyre.”

Words with a similar meaning to “hub” include hub world.

“Hub” is a noun.

The word “hub” comes from Germanic. Of uncertain origin, related to an old dialect word "hob"; possibly linked to a Germanic root meaning "bump" or "hill.".

“Hub” is a fairly common word in modern English.

“Hub” has 3 distinct senses listed in this dictionary. The most common is: the central part of a wheel, around which it turns.

A hub is a simple device that connects several devices on a local network and repeats incoming data to every connected port. A switch is smarter: it learns which device sits on which port and forwards data only where it needs to go, which reduces congestion. For that reason switches have largely replaced hubs in modern networks.

A centre is simply a middle point or main location. A hub specifically implies convergence: routes, services, or activity flowing in and out through one point, the way spokes meet at the hub of a wheel. Calling a city a "tech hub" therefore suggests connection and exchange, not just location.