This is the 612th most frequent Persian word.
استانهای
"استانهای" means "provinces" in English.
In this sentence, 'استانهای' (ostân-hâ-ye) represents a plural form referring to 'provinces' with a possessive 'of Iran' to specify the context.
استانهای ایران به زیبایی طبیعی خود مشهور هستند.
The provinces of Iran are famous for their natural beauty.
Here, 'استانهای' is used to denote 'provinces' in general, describing the various regions within the country.
توسعه اقتصادی در استانهای مختلف کشور اهمیت زیادی دارد.
Economic development in various provinces of the country is very important.
The term 'استانهای' in this sentence indicates 'provinces' and specifies those in the northern region of Iran using an adjective.