This is the 668th most frequent Persian word.
مازندران
Mazandaran: A northern province in Iran, located along the southern coast of the Caspian Sea.
Here, 'مازندران' is used as a proper noun referring to a geographic location.
مازندران یکی از استانهای شمالی ایران است.
Mazandaran is one of the northern provinces of Iran.
In this sentence, 'مازندران' emphasizes the characteristic of the region's nature.
طبیعت مازندران همیشه سرسبز و زیباست.
The nature of Mazandaran is always green and beautiful.
Here, 'مازندران' is used to describe its administrative and cultural significance.