hub

noun

ˈhəb 

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 of hub

• center
• mecca
• capital
• focus

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

The 30,000-square-foot Toyota Battery Center of North America in Saline will serve as the automaker’s central North American hub for battery development and evaluation. — Neetika Walter, Interesting Engineering, 3 Oct. 2026

Charlotte headquarters and local operations Scout Motors will establish its global corporate headquarters and business hub in a historic 145,000-square-foot building at the Commonwealth development. — Chase Jordan october 2, Charlotte Observer, 2 Oct. 2026

The gruesome 2023 murder of Choi, who rubbed shoulders with showbiz elites at fashion events and had a significant online following, sent shockwaves through the wealthy financial hub and made global headlines. — Chris Lau, CNN Money, 2 Oct. 2026

Disney also has been working for the past year to make Disney+ the company’s central streaming hub. — Meg James, Los Angeles Times, 2 Oct. 2026

Word History

Etymology

probably alteration of hob entry 2

First Known Use

1649, in the meaning defined at sense 1

Phrases Containing hub

• hub-and-spoke

Rhymes for hub

• bub
• club
• cub
• dub
• grub
• nub
• pub
• rub
• scrub
• shrub
• snub
• stub

Kids Definition

hub

noun

ˈhəb 

1

: the central part of a circular object (as a wheel)

2

: a center of activity

Medical Definition

hub

noun

ˈhəb 

: the enlarged base by which a hollow needle may be attached to a device (as a syringe)