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hub

hub

23 3.5
The central part of a wheel or fan where the axle goes through
  • noun
  • /hʌb/
  • Specialized
translation icon : cubo
  • The wheel's hub allows the axle to turn smoothly while the wheel rotates.
  • wheel hub
  • upper hub
  • lower hub

Unplug the fan hub and disconnect the the fans from it, obviously.

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Examples

  • Streets fanned out from a circular hub like spokes overlapping other spokes in a giant puzzle.

    Fiction book (1992)
  • The main activity should be towards the central hub, which is directly above you.

  • It's got a rather strange little pentagonal hub with a hole through it.

  • This is the hub of the wheel, the headquarters, the main office... of the Rabbit's Foot, pretty much unchanged from when Lucky was here.

  • It's like the hub of a wheel with the crops radiating out.

  • The bike's wheel has a sturdy hub that supports the spokes and maintains its shape.

  • In mechanical engineering, the hub is crucial for connecting various components to the central shaft.

Compounds

9 4.1

A central place where people and activities come together around one topic

hub-and-spoke
  • Specialized
1 5.2

A transport system where local routes meet at a central place, like an airport, for long trips

hub-and-spoke system
  • Specialized
1 5.8

A way of moving people where local flights connect at one main airport for long flights

1 3.4

A city or area where many technology companies and startups develop new products

A central place where people go to learn, like a community center or website

6.0

A central website or app where popular online content spreads quickly

A nickname for Boston as a busy center of culture, business, and history

tech hub
  • Texting
3.4

An online place where tech people and startups meet and share advice

How Central

axle
  • Specialized
33 3.5
hub
  • Specialized
23 3.5
spoke
15 3.0
rim
96 1.0

Surface Forms

hub singular
hubs plural

Etymology

Hub originally named the small central 'knob' where a wheel's spokes meet. That's why a hub is the middle part of a wheel, fan, or propeller through which the shaft passes.