hubs

1. The central part, usually cylindrical, of a wheel; the nave.
2. A point where many routes meet and traffic is distributed, dispensed or diverted.

   Hong Kong International Airport is one of the most important air traffic hubs in Asia.

3. A central facility providing a range of related services, such as a medical hub or an educational hub
4. A computer networking device connecting several Ethernet ports. See switch.
5. A stake with a nail in it, used to mark a temporary point.
6. A male weasel; a buck; a dog; a jack.
7. The hilt of a weapon.
8. A rough protuberance or projecting obstruction.

   a hub in the road

9. An area in a video game from which most or all of the game's levels are accessed.
10. A goal or mark at which quoits, etc., are thrown.
11. A hardened, engraved steel punch for impressing a device upon a die, used in coining, etc.
12. A screw hob.
13. A block for scotching a wheel.

noun

(as a term of endearment) husband