Nouns

(n)Irani, Iranian, Persiana native or inhabitant of Iran“the majority of Irani are Persian Shiite Muslims”
(n)Persian, Farsi, Persian language, Farsi languagethe language of Persia (Iran) in any of its ancient forms

Adjectives

(a)Iranian, Persianof or relating to Iran or its people or language or culture“Iranian mountains”, “Iranian security police”