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!
—
Allison Tibaldi, USA Today, 9 June 2026
The strongest quake to strike the Philippines this year was centered at sea about 8 miles southwest of General Santos, a city of more than 700,000 people that is a hub for tuna processing and other commerce in the southern Mindanao region of the archipelago nation.
—Los Angeles Times, 8 June 2026
Most operators simply bale their collections and blindly dispatch them to transit hubs in Eastern Europe or Dubai, where overheads and labor are cheaper.
—Jasmin Malik Chua, Footwear News, 8 June 2026
After massive democracy protests rocked the Asian financial hub in 2019, Beijing imposed a national security law that has been used to arrest many leading activists.
—ABC News, 8 June 2026
See All Example Sentences for hub
Examples are automatically compiled from online sources to
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Allison Tibaldi, USA Today, 9 June 2026
The strongest quake to strike the Philippines this year was centered at sea about 8 miles southwest of General Santos, a city of more than 700,000 people that is a hub for tuna processing and other commerce in the southern Mindanao region of the archipelago nation.
—Los Angeles Times, 8 June 2026
Most operators simply bale their collections and blindly dispatch them to transit hubs in Eastern Europe or Dubai, where overheads and labor are cheaper.
—Jasmin Malik Chua, Footwear News, 8 June 2026
After massive democracy protests rocked the Asian financial hub in 2019, Beijing imposed a national security law that has been used to arrest many leading activists.
—ABC News, 8 June 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 10 Jun. 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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