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 backstory Located in Printers Alley, the Noelle is situated in Nashville's historic legacy media hub. —Condé Nast, Condé Nast Traveler, 27 Feb. 2026

Oh, and check out our new Survivor HQ hub. —Dalton Ross, Entertainment Weekly, 26 Feb. 2026

Guadalajara, the central hub for the Jalisco cartel, is scheduled to host four. —Carlos Rodriguez, Chicago Tribune, 26 Feb. 2026

The couple visited World Central Kitchen in Amman, Jordan as their first stop of the day on Thursday, which serves as a logistics hub to coordinate aid for Gaza. —Rachel Burchfield, InStyle, 26 Feb. 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)