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
Most of the Downright crowd was upstairs on the third floor for panels, but overall the hotel seemed like a fine interim central hub for music.
—
Ana Gutierrez, Austin American Statesman, 20 Mar. 2026
Food & beverage Located just off the lobby entrance, Versante Hearth and Bar serves as both the hotel’s anchor and sporty social hub, open seven days a week for breakfast, lunch, dinner, and evening drinks.
—Condé Nast, Condé Nast Traveler, 19 Mar. 2026
The film collected a €5,000 ($5,752) cash prize at MAFIZ, Málaga’s industry hub, during the festival’s 29th edition, held March 6-15.
—Emiliano De Pablos, Variety, 19 Mar. 2026
But more political controls were introduced to the casino hub in recent years, especially after huge anti-government protests rocked Hong Kong in 2019, the biggest challenge to Beijing’s rule since its handover.
—ABC News, 19 Mar. 2026
See All Example Sentences for hub
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Ana Gutierrez, Austin American Statesman, 20 Mar. 2026
Food & beverage Located just off the lobby entrance, Versante Hearth and Bar serves as both the hotel’s anchor and sporty social hub, open seven days a week for breakfast, lunch, dinner, and evening drinks.
—Condé Nast, Condé Nast Traveler, 19 Mar. 2026
The film collected a €5,000 ($5,752) cash prize at MAFIZ, Málaga’s industry hub, during the festival’s 29th edition, held March 6-15.
—Emiliano De Pablos, Variety, 19 Mar. 2026
But more political controls were introduced to the casino hub in recent years, especially after huge anti-government protests rocked Hong Kong in 2019, the biggest challenge to Beijing’s rule since its handover.
—ABC News, 19 Mar. 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 22 Mar. 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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