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

Clemons had served as the founding CEO of both ConnCAT and ConnCORP, turning them into hubs for economic and community revitalization that aimed to center the experiences and needs of residents in New Haven’s Dixwell and Newhallville neighborhoods. — P.r. Lockhart, Hartford Courant, 26 Sep. 2026

The property combines centuries of history with chic interiors, excellent service, and an unbeatable location, mere steps away from Zurich’s central hub and iconic shops. — Condé Nast, Condé Nast Traveler, 25 Sep. 2026

The hub can combine readings from multiple implants and coordinate therapeutic responses from devices elsewhere in the body. — Neetika Walter, Interesting Engineering, 25 Sep. 2026

The biennial’s theme and its location reflect the government’s efforts to transform Rayong from an industrial city into an arts hub. — News Desk, Artforum, 25 Sep. 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)