hub /hub/

1. The centre of a wheel, the nave
2. A mark at which quoits, etc are thrown
3. An important centre or focus of activity, as applied (archaic and facetious) to Boston, USA, esp in the phrases hub of the universe or hub of the solar system
4. The focal point (of a discussion, problem, etc)
5. A unit that connects network components together (computing)

• auditoriums
• auditors
• auditorship
• auditorships
• auditory
• auditress
• audits
• bottom fisher
• bottom fishers
• bottom-glade
• bottom-glades
• bottom-grass
• bottom-heavy
• bottom-hole assembly
• bottom house
• bottom houses
• bottoming
• bottom-land
• bottom-lands
• bottomless
• bottomless pit
• bottomless pits
• bottom line
• bottom lines
• bottommost