This is the 422nd most frequent Turkish word.
başbakanı
"Başbakanı" means "the prime minister" in English.
Here, 'başbakanı' is used as the direct object of the verb 'görmek' (to see), indicating the Prime Minister is the entity being seen.
Başbakanı görmek için Ankara'ya gittik.
We went to Ankara to see the Prime Minister.
In this sentence, 'başbakanı' is in possessive construction with 'bizim partimizin' (of our party), showing possession.
Bizim partimizin başbakanı yeni bir karar açıkladı.
The Prime Minister of our party announced a new decision.
Here, 'başbakanı' is again used as the direct object, this time for the verb 'desteklemek' (to support).