This is the 2070th most frequent Arabic word.
ايران
"Iran" – A country in Western Asia.
In this sentence, 'إيران' is used as a proper noun to refer to the country itself.
زرت إيران العام الماضي.
I visited Iran last year.
Here, 'إيران' again refers to the country, emphasizing its cultural aspects.
إيران تشتهر بالزخرفة التقليدية.
Iran is famous for traditional decorations.
In this case, 'إيران' indicates the geographical location where these scientists reside or work.