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

Meanwhile, Charlotte will be at the forefront with lots of potential to show off its reputation as a hub for the sport. — Kamran Nia july 9, Charlotte Observer, 9 July 2026

Taiwan’s digital nomad visa extension is just one of several programs that have turned Asia into a hub for international remote workers. — Brittany Chang, Condé Nast Traveler, 9 July 2026

Digital maintenance workflow DroneIQ also serves as the central hub for inspection results. — Aamir Khollam, Interesting Engineering, 10 July 2026

For the three-day event, Cal Expo transformed into an X Games hub, where some of the world’s best BMX bike, skateboard and motocross athletes competed across 18 events. — Sean Campbell, Sacbee.com, 9 July 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)