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
Ollantaytambo, about 45 miles northwest of Cusco, is a major transportation hub in Peru’s Sacred Valley and a common starting point for rail travel to Machu Picchu.
—
Greg Wehner, FOXNews.com, 31 Dec. 2025
Tonnage numbers so far this year are even worse than 2020, when shipping hubs along the Arkansas River, like the Port of Little Rock, rebounded from a historic 2019 flood and pandemic-era restrictions that stalled the commercial shipping industry.
—Arkansas Online, 30 Dec. 2025
The island nation’s state-of-the-art sprawl testifies to its ascent as a global financial hub, a place for oligarchs to shelter their wealth and speculate.
—Dan Piepenbring, Harpers Magazine, 30 Dec. 2025
After a look back in time, set your sights on the future at The Momentary, a former cheese factory turned creative hub for artists of all kinds.
—Karla Walsh, Southern Living, 30 Dec. 2025
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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Greg Wehner, FOXNews.com, 31 Dec. 2025
Tonnage numbers so far this year are even worse than 2020, when shipping hubs along the Arkansas River, like the Port of Little Rock, rebounded from a historic 2019 flood and pandemic-era restrictions that stalled the commercial shipping industry.
—Arkansas Online, 30 Dec. 2025
The island nation’s state-of-the-art sprawl testifies to its ascent as a global financial hub, a place for oligarchs to shelter their wealth and speculate.
—Dan Piepenbring, Harpers Magazine, 30 Dec. 2025
After a look back in time, set your sights on the future at The Momentary, a former cheese factory turned creative hub for artists of all kinds.
—Karla Walsh, Southern Living, 30 Dec. 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 1 Jan. 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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