Aim of article (6)
I believe the answer is:
object
I believe this is a double definition.
'aim' is the first definition.
(synonyms)
'article' is the second definition.
(both can mean a thing or item)
'of' is the link.
(Other definitions for object that I've seen before include "Make protest, disagree" , "Protest; purpose; thing" , "Thing; complain" , "Protest, disapprove" , "Voice disapproval; goal" .)