Point of departure (4)

I believe the answer is:
exit
(Other definitions for exit that I've seen before include "walk away" , "Sudden rush of pleasure" , "Way out sign" , "Way to leave" , "Leave the building" .)
I believe the answer is:
exit
(Other definitions for exit that I've seen before include "walk away" , "Sudden rush of pleasure" , "Way out sign" , "Way to leave" , "Leave the building" .)