hub

Everyday

1. The centre of a wheel, where the spokes or axle are joined. tree →
2. The busiest or most important centre of an activity or place, as in «a transport hub». tree →
3. (computing) A device that joins several cables or computers together. tree →
4. (informal) Short for «hubby» or «husband» — rare. tree →

In the lessons

In everyday life: «The kitchen is the hub of our home.» In geography and social studies: airports and big stations are transport hubs. In science and design, the hub of a bicycle wheel. In computing, a USB hub lets you plug in more things.

Examples

• The spokes meet at the hub of the wheel. tree →
• The library is the hub of our school. tree →
• London is a big transport hub. tree →
• Plug the mouse into the USB hub. tree →
• The town square is the hub of the market. tree →
• The airport is a hub for flights to Asia. tree →
• Grease the hub so the wheel turns smoothly. tree →
• The horses could hardly drag the load through the deep mud, and at last came to a standstill when one of the wheels sank to the hub in a rut. tree →

Note

Countable. Short word with a short u. In network or graph puzzles, the hub is the point with the most lines joined to it.