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!
—
Jenny Porter Tilley, Louisville Courier Journal, 6 Feb. 2026
Mexico's best cities are hubs for culture—not just within the country, but for a global audience as well.
—Atenea Morales De La Cruz, Condé Nast Traveler, 5 Feb. 2026
Taking over the corner space at 42 Leighton Road, the Palace Hong Kong store draws inspiration from Tai Kwun, the former police station compound that’s been revitalized as a cultural hub.
—Tianwei Zhang, Footwear News, 5 Feb. 2026
The concrete Bank of America office had been a vibrant employment hub after it was put up in 1971, serving as a regional check-processing facility.
—Don Stacom, Hartford Courant, 5 Feb. 2026
See All Example Sentences for hub
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Jenny Porter Tilley, Louisville Courier Journal, 6 Feb. 2026
Mexico's best cities are hubs for culture—not just within the country, but for a global audience as well.
—Atenea Morales De La Cruz, Condé Nast Traveler, 5 Feb. 2026
Taking over the corner space at 42 Leighton Road, the Palace Hong Kong store draws inspiration from Tai Kwun, the former police station compound that’s been revitalized as a cultural hub.
—Tianwei Zhang, Footwear News, 5 Feb. 2026
The concrete Bank of America office had been a vibrant employment hub after it was put up in 1971, serving as a regional check-processing facility.
—Don Stacom, Hartford Courant, 5 Feb. 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 15 Feb. 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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