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
Check out the all new PLAY hub with puzzles, games and more!
—
Saman Shafiq, USA Today, 5 May 2026
Further, the tax disincentivizes success, weakens California’s standing as a hub for innovation, and demonizes the wealthy – all of which erode investment, drive economic activity elsewhere, and are ultimately incompatible with America’s capitalist roots.
—Douglas Schoen, Oc Register, 4 May 2026
Commercial planes bound for the UAE — home to the global travel hubs of Dubai and Abu Dhabi — turned around midair.
—Adam Schreck, Twin Cities, 4 May 2026
Duncan's supporters say the attempt by a majority white conservative Legislature to eliminate Duncan's job thwarts the will of voters in New Orleans, a predominantly Black Democratic hub in a red state.
—Jack Brook, ABC News, 4 May 2026
See All Example Sentences for hub
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Saman Shafiq, USA Today, 5 May 2026
Further, the tax disincentivizes success, weakens California’s standing as a hub for innovation, and demonizes the wealthy – all of which erode investment, drive economic activity elsewhere, and are ultimately incompatible with America’s capitalist roots.
—Douglas Schoen, Oc Register, 4 May 2026
Commercial planes bound for the UAE — home to the global travel hubs of Dubai and Abu Dhabi — turned around midair.
—Adam Schreck, Twin Cities, 4 May 2026
Duncan's supporters say the attempt by a majority white conservative Legislature to eliminate Duncan's job thwarts the will of voters in New Orleans, a predominantly Black Democratic hub in a red state.
—Jack Brook, ABC News, 4 May 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 6 May. 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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