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
Synonyms
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
And given that neither of these properties sees itself as a business hotel, each is determined to carve out its own ways to establish itself as a leisure hub.
—
Sarah Kahn, Robb Report, 25 Apr. 2024
The question of which city would take the crown as Europe’s financial hub from the City of London has gripped European capitals ever since Brexit spelled the end of London’s full integration in the European Union.
—Peter Vanham, Fortune, 25 Apr. 2024
See all Example Sentences for hub 
Sarah Kahn, Robb Report, 25 Apr. 2024
The question of which city would take the crown as Europe’s financial hub from the City of London has gripped European capitals ever since Brexit spelled the end of London’s full integration in the European Union.
—Peter Vanham, Fortune, 25 Apr. 2024
See all Example Sentences for hub
These examples are programmatically compiled from various online sources to illustrate current usage of the word 'hub.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.
Dictionary Entries Near hub
Cite this Entry
“Hub.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/hub. Accessed 4 May. 2024.
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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