Of or relating to such a language or member.

A region in northwestern Iran.

relative to Iran and its people

a person from Iran or of Iranian heritage / A member of the smaller of the two Zoroastrian communities of the Indian subcontinent.

plural of Iranian

(linguistics, uncountable) The hypothetical ancestor language or protolanguage of Indo-Aryan languages, the Iranian languages, the Dardic languages and the Nuristani languages.

(anthropology, countable) A person who spoke the Proto-Indo-Iranian language.

(linguistics, anthropology) Of or pertaining to the Proto-Indo-Iranian language, or the people who spoke it.

plural of Proto-Indo-Iranian

The hypothetical proto-language reconstructed by comparative method, from which all the Iranian languages descended.