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
Chennai, the capital of the state of Tamil Nadu, is one of India's largest cities and a major cultural and economic hub.
—
Josh Hammer, Newsweek, 16 Feb. 2025
Tariffs and trade too The three-day Munich conference was a hub of crisscrossing diplomacy on issues of politics, economics, and defense and security, with top envoys on hand from places as diverse as Syria and Saudi Arabia, and Japan and South Korea, as well as many European leaders.
—Emma Burrows, Los Angeles Times, 16 Feb. 2025
This risk is said to be particularly high in the Syrian Badia region, the central hub for Daesh’s external operational planning.
—Dr. Ewelina U. Ochab, Forbes, 15 Feb. 2025
Saudi Arabia is rapidly growing into a thriving creative hub for the film industry, capturing the attention of local and international productions.
—Partner Content, Variety, 14 Feb. 2025
See all Example Sentences for hub 
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Josh Hammer, Newsweek, 16 Feb. 2025
Tariffs and trade too The three-day Munich conference was a hub of crisscrossing diplomacy on issues of politics, economics, and defense and security, with top envoys on hand from places as diverse as Syria and Saudi Arabia, and Japan and South Korea, as well as many European leaders.
—Emma Burrows, Los Angeles Times, 16 Feb. 2025
This risk is said to be particularly high in the Syrian Badia region, the central hub for Daesh’s external operational planning.
—Dr. Ewelina U. Ochab, Forbes, 15 Feb. 2025
Saudi Arabia is rapidly growing into a thriving creative hub for the film industry, capturing the attention of local and international productions.
—Partner Content, Variety, 14 Feb. 2025
See all Example Sentences for hub
Dictionary Entries Near hub
Cite this Entry
“Hub.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/hub. Accessed 22 Feb. 2025.
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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