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
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Both the Doubledown and the Kickback can be had with either a mid-drive CYC motor for assist up to 20mph (a Class 2 e-bike) or a 1,000-watt CYC rear hub motor with torque sensor for a faster 28mph assisted Class 3 speed. William Roberson, Forbes.com, 17 Sep. 2025 According to Dongfang, the behemoth structure will be able to power 55,000 households at peak output and its central hub will stand 606 feet high—roughly twice as tall as the Statue of Liberty. Jeff Young, MSNBC Newsweek, 17 Sep. 2025 But despite limitations on the number of flights United could fly at one of its key hubs, the airline was able to offer passengers more seats in and out of Newark than in the past by using larger aircrafts. Aaron Cooper, CNN Money, 16 Sep. 2025 Over the decades, the Sundance Film festival morphed from a classics and good-for-you granola film showcase to a vital hub in indie distribution, serving as a gatekeeper and exhibition platform for filmmakers and a farm system for emerging talent heading for Hollywood. Anne Thompson, IndieWire, 16 Sep. 2025 See All Example Sentences for hub

Word History

Etymology

probably alteration of hob entry 2

First Known Use

1649, in the meaning defined at sense 1

Time Traveler
The first known use of hub was in 1649

Browse Nearby Words

Cite this Entry

“Hub.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/hub. Accessed 17 Sep. 2025.

Kids Definition

hub

noun
1
: 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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