1
: the central part of a circular object (such as a wheel or propeller)
spokes attached to the hub of the wheel
2
a
: a center of activity : focal point
The island is a major tourist hub.
b
: an airport or city through which an airline routes most of its traffic
c
: a central device that connects multiple computers on a single network (see network entry 1 sense 3b)
3
: a steel punch from which a working die (see die entry 2 sense 3a) for a coin or medal is made
Examples of hub in a Sentence
the hub of the city
She was at the hub of all the activity.
All of the airline's coast-to-coast flights pass through its hub.
The spokes attach to the hub of the wheel.
Recent Examples on the Web
With more than 300 employees and offices in California, Illinois, Florida, and India — as well as regional hubs in New York, New Jersey, Texas, and Arizona — IDIQ continues to scale its reach while staying rooted in its original vision.
—
Nia Bowers, USA Today, 4 June 2025
Known for its poultry slaughterhouses, Gainesville is now a manufacturing hub where startups can find engineers and greenfield sites.
—Patrik Jonsson, Christian Science Monitor, 3 June 2025
Unable to enlist in the army during World War II owing to a weak heart, Garfield instead, along with Bette Davis, established the Hollywood Canteen, the famous hub for servicemen stopping through Los Angeles.
—Rance Collins, IndieWire, 3 June 2025
In our evolving influencer ecosystem, this quality transforms agencies from rigid hierarchies into creative hubs where both people and strategies can breathe and evolve.
—Expert Panel®, Forbes.com, 3 June 2025
See All Example Sentences for hub
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Opinions expressed in the examples do not represent those of Merriam-Webster or its editors.
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Nia Bowers, USA Today, 4 June 2025
Known for its poultry slaughterhouses, Gainesville is now a manufacturing hub where startups can find engineers and greenfield sites.
—Patrik Jonsson, Christian Science Monitor, 3 June 2025
Unable to enlist in the army during World War II owing to a weak heart, Garfield instead, along with Bette Davis, established the Hollywood Canteen, the famous hub for servicemen stopping through Los Angeles.
—Rance Collins, IndieWire, 3 June 2025
In our evolving influencer ecosystem, this quality transforms agencies from rigid hierarchies into creative hubs where both people and strategies can breathe and evolve.
—Expert Panel®, Forbes.com, 3 June 2025
See All Example Sentences for hub
Cite this Entry
“Hub.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/hub. Accessed 7 Jun. 2025.
Copy CitationKids Definition
hub
noun1
: the central part of a circular object (as a wheel)
2
: a center of activity
Medical Definition
hub
noun
: the enlarged base by which a hollow needle may be attached to a device (as a syringe)
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