Nakhchivan is the capital and largest city of the eponymous Nakhchivan Autonomous Republic, a true exclave of Azerbaijan, located 450 km (280 mi) west of Baku. The municipality of Nakhchivan consists of the city of Nakhchivan, the settlement of Əliabad and the villages of Başbaşı, Bulqan, Haciniyyət, Qaraçuq, Qaraxanbəyli, Tumbul, Qarağalıq, and Daşduz. It is spread over the foothills of Zangezur Mountains, on the right bank of the Nakhchivan River at an altitude of 873 m (2,864 ft) above sea level.

Azerbaijani or Azeri, also referred to as Azeri Turkic, is a Turkic language from the Oghuz sub-branch. It is spoken primarily by the Azerbaijani people, who live mainly in the Republic of Azerbaijan, where the North Azerbaijani variety is spoken, and in the Azerbaijan region of Iran, where the South Azerbaijani variety is spoken. North Azerbaijani has official status in the Republic of Azerbaijan and Dagestan, but South Azerbaijani does not have official status in Iran, where the majority of Azerbaijani people live. Azerbaijani is also spoken to lesser varying degrees in Azerbaijani communities of Georgia and Turkey and by diaspora communities, primarily in Europe and North America.