Purpose, objective (3)
I believe the answer is:
end
I believe this clue is a double definition.
'purpose' is the first definition.
(both can mean a goal)
'objective' is the second definition.
(both can mean a purpose)
(Other definitions for end that I've seen before include "Discontinue" , "Terminus" , "Goal; destruction" , "Bring to a conclusion" , "Fine" .)