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
Shockley, for instance, worked at Bell Labs, a mid-century hub that invented the modern solar cell and the first portable operating system.
—
S. C. Cornell, New Yorker, 16 June 2025
Demonstrations took place in hundreds of U.S. cities, according to Reuters, with large-scale gatherings reported in major hubs such as Philadelphia; Los Angeles; Austin, Texas; Portland, Oregon; and New York.
—Joe Edwards, MSNBC Newsweek, 15 June 2025
From 2020 to 2023, Black in Tulum emerged as a significant hub for Black American travelers, connecting Tulum to Playa del Carmen, now one of the world’s top destinations for Black American expatriates.
—Dominique Fluker, Essence, 13 June 2025
The majority of cargo volumes from these ports are destined for Dubai, which has become a hub for the movement of freight with feeder services in the Persian Gulf, South Asia, and East Africa.
—Lori Ann Larocco, CNBC, 13 June 2025
See All Example Sentences for hub
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S. C. Cornell, New Yorker, 16 June 2025
Demonstrations took place in hundreds of U.S. cities, according to Reuters, with large-scale gatherings reported in major hubs such as Philadelphia; Los Angeles; Austin, Texas; Portland, Oregon; and New York.
—Joe Edwards, MSNBC Newsweek, 15 June 2025
From 2020 to 2023, Black in Tulum emerged as a significant hub for Black American travelers, connecting Tulum to Playa del Carmen, now one of the world’s top destinations for Black American expatriates.
—Dominique Fluker, Essence, 13 June 2025
The majority of cargo volumes from these ports are destined for Dubai, which has become a hub for the movement of freight with feeder services in the Persian Gulf, South Asia, and East Africa.
—Lori Ann Larocco, CNBC, 13 June 2025
See All Example Sentences for hub
Cite this Entry
“Hub.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/hub. Accessed 25 Jun. 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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