Iranian language refers to a group of languages spoken primarily in Iran and the surrounding regions. Some of the synonyms for Iranian language include Persian, Farsi, Dari, Tajik, and Kurdish. Persian is the most widely spoken Iranian language globally, with over 100 million speakers. Farsi refers specifically to the Persian language spoken in Iran. Dari is the Persian language spoken in Afghanistan, while Tajik is the language spoken in Tajikistan. Kurdish is spoken by the Kurdish people in Iran, Iraq, Turkey, and Syria. These languages have their unique characteristics but also share some similarities, such as their use of the Persian script.