1. the central part of a wheel that connects to the axle
2. a center of activity, interest, or importance
3. a central airport or station where many flights or routes connect
Usage: transportation

Examples

• The bicycle wheel’s hub was damaged in the accident.
• Chicago is a major transportation hub for the Midwest.
• Silicon Valley is considered the hub of the tech industry.
• The airport serves as a hub for international flights.
• She connected all the computers through a network hub.
• The city became a hub of cultural activity.
• The spokes radiate outward from the wheel’s hub.