| Gist |
| Core |
| NAVE |
| Pivot |
| Heart |
| Focus |
| Boston |
| Centre |
| Nucleus |
| Air base? |
| Epicenter |
| ___ center |
| Wheel part |
| Tire center |
| Focal point |
| Big airport |
| Active area |
| Central area |
| Center piece |
| Central city |
| Ethernet ___ |
| Nerve centre |
| Wheel centre |
| Nerve center |
| Wheel center |
| Busy airport |
| Central point |
| Action center |
| Meeting place |
| ___-and-spoke |
| LAX or Dulles |
| Major airport |
| Turning point? |
| Boston moniker |
| Hawaiian home? |
| Wheel's centre |
| Airline locale |
| Spokes' center |
| Wheel's center |
| O'Hare, for one |
| Activity center |
| Ethernet device |
| Name for Boston |
| Central airport |
| Central computer |
| The ___ (Boston) |
| Propeller center |
| Boston, with "the |
| It may wear a cap |
| Networking device |
| Centre of a wheel |
| Important airport |
| Focus of activity |
| Middle of a wheel |
| Airline home base |
| Where spokes meet |
| Center of a wheel |
| Center of activity |
| Center of interest |
| Atlanta, for Delta |
| Network connection |
| Where the action is |
| Airline's home base |
| Nickname for Boston. |
| Spokes' intersection |
| Bub" or "cap" opener |
| Wheel's central part |
| LAX or ORD, to United |
| Many a layover locale |
| Transportation center |
| Where spokes converge |
| Connecting flight site |
| Where some routes meet |
| Where spokes intersect |
| Airline's main airport |
| Flight-connection site |
| Atlanta, e.g., for Delta |
| Boston, for O. W. Holmes |
| De Gaulle, to Air France |
| JFK, for Delta Air Lines |
| Indirect flight stop-off |
| O'Hare or Newark Liberty |
| Likely spot for a layover |
| Atlanta, to Delta Airlines |
| Atlanta, for Delta Airlines |
| Center of a busy metropolis |
| O'Hare, for United Airlines |
| Airline's base of operations |
| Boston's nickname, with "the |
| Atlanta, for Delta Air Lines |
| Connection point between legs |
| US Airways has one in Phoenix |
| Activity center, to an airline |
| Trivial Pursuit board location |
| Where planes are often changed |
| ____City (Saskatoon, familiarly) |
| That '70s Show" diner, with "The |
| Center of a Trivial Pursuit board |
| LAX or JFK, for American Airlines |
| Major airport for changing planes |
| Atlanta is one for Delta Air Lines |
| Boston Statehouse, to O. W. Holmes |
| Airport with many connecting flights |
| Point where many connections are made |
| Major connection point for an airline |
| Bicycle wheel part where the spokes meet |
| Destination for a Trivial Pursuit winner |
| Chicago O'Hare is one for United Airlines |
| Center of activity, such as a busy airport |
| Relatively easy city to fly into and out of |
| Airport serving as a central connecting point |