Languages of the Ottoman Empire
The Ottomans had three influential languages: Turkish, spoken by the majority of the people in Anatolia and by the majority of Muslims of the Balkans except in Albania, Bosnia, and various Aegean Sea islands; Persian, initially used by the educated in northern portions of the Ottoman Empire before being displaced by Ottoman Turkish; and Arabic, used in southern portions of the Ottoman Empire; Arabic was spoken mainly in Arabia, North Africa, Mesopotamia and the Levant. Throughout the vast Ottoman bureaucracy Ottoman Turkish language was the official language, a version of Turkish, albeit with a vast mixture of both Arabic and Persian grammar and vocabulary.
Ioannina
Despite the repression and conversions in the 17th century, and the prominence of the Muslim population in the city's affairs, Ioannina retained its Christian majority throughout Ottoman rule, and the Greek language retained a dominant position; Turkish was spoken by the Ottoman officials and the garrison, and the Albanian inhabitants used Albanian, but the "lingua franca" and native language of most inhabitants was Greek, including among the "Tourkoyanniotes", and was sometimes used by the Ottoman authorities themselves.