This is the 5136th most frequent Arabic word.
بإيران
"In Iran."
Here, "بإيران" indicates the location where Ali's friends are, showing possession or context within Iran.
زار علي أصدقائه بإيران خلال عطلة الصيف.
Ali visited his friends in Iran during the summer vacation.
In this sentence, "بإيران" specifies the place where the music festival took place, functioning as a locative preposition.
أقيم مهرجان الموسيقى بإيران هذا العام.
The music festival was held in Iran this year.
The usage of "بإيران" here implies association, indicating that the history of arts pertains to Iran.