| Basic center? |
| Ballad center? |
| Ancient underground tunnel |
| Bulky center? |
| Tunnel center? |
| Something left of center? |
| Burial chamber with vaulted tunnels |
| Ballet center? |
| Laser center? |
| Activity at a chopping center? |
| Antitoxin center? |
| Emerald center? |
| Airport at one end of the Ted Williams Tunnel |
| Dietary center? |
| Conference center? |
| Pressure center? |
| Fitness center? |
| Puzzle center? |
| Swimming center? |
| Inventor's center? |
| Fertilizer distribution center? |
| Rubber center? |
| Downtown Chicago convention center? |
| Tunnel effect created by blowing air through a line of empty-headed participants? |
| Hostile reaction center? |
| Football Hall-of-Famer Tunnell |
| Chopping center? |
| Artsy wine center? |
| Word form that's left of center? |
| Sovereign center? |