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
As a buzzy beachfront hub, the seaside service certainly gets crowded, so expect longer wait times for food and drinks.
—
Condé Nast, Condé Nast Traveler, 2 June 2026
Check out the all new PLAY hub with puzzles, games and more!
—Edward Segarra, USA Today, 2 June 2026
Later that month, the department launched the AI in Registered Apprenticeship Innovation portal, a free hub that helps workers, employers, and training providers integrate AI into apprenticeships across six sectors from health care to advanced manufacturing.
—Shalin Jyotishi, Forbes.com, 1 June 2026
At Dubai International Airport, more than 40 airlines are still operating, with transit passengers continuing to keep the traffic flowing at what was the world’s busiest aviation hub, albeit in smaller numbers.
—Melanie Swan, CNN Money, 1 June 2026
See All Example Sentences for hub
Examples are automatically compiled from online sources to
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Opinions expressed in the examples do not represent those of Merriam-Webster or its editors.
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Condé Nast, Condé Nast Traveler, 2 June 2026
Check out the all new PLAY hub with puzzles, games and more!
—Edward Segarra, USA Today, 2 June 2026
Later that month, the department launched the AI in Registered Apprenticeship Innovation portal, a free hub that helps workers, employers, and training providers integrate AI into apprenticeships across six sectors from health care to advanced manufacturing.
—Shalin Jyotishi, Forbes.com, 1 June 2026
At Dubai International Airport, more than 40 airlines are still operating, with transit passengers continuing to keep the traffic flowing at what was the world’s busiest aviation hub, albeit in smaller numbers.
—Melanie Swan, CNN Money, 1 June 2026
See All Example Sentences for hub
Cite this Entry
“Hub.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/hub. Accessed 4 Jun. 2026.
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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