Goal to finish with (3)
I believe the answer is:
end
This might be a double definition.
'goal' is the first definition.
(both can mean a purpose)
'finish with' is the second definition.
'end' can be an answer for 'finish' (synonyms). I'm not certain of the 'with' bit.
'to' acts as a link.
Can you help me to learn more?
(Other definitions for end that I've seen before include "death" , "Cesation, conclusion" , "Finish, wind up" , "ambition" , "Fine" .)