Wheel middle (3)
I believe the answer is:
hub
(Other definitions for hub that I've seen before include "Centre of activity" , "Centre (of network)" , "Focal point of activity" , "Centre of wheel" , "Focus" .)
I believe the answer is:
hub
(Other definitions for hub that I've seen before include "Centre of activity" , "Centre (of network)" , "Focal point of activity" , "Centre of wheel" , "Focus" .)