Turkish alphabet in the context of "Turkish language"

The Ottoman Turkish alphabet (Ottoman Turkish: الفبا, romanized: elifbâ) is a version of the Perso-Arabic script used to write Ottoman Turkish for over 600 years until 1928, when it was replaced by the Latin-based modern Turkish alphabet.

Though Ottoman Turkish was primarily written in this script, non-Muslim Ottoman subjects sometimes wrote it in other scripts, including Armenian, Greek, Latin and Hebrew alphabets.

Old Turkish or Old Anatolian Turkish (Latin Turkish: Eski Türkçe/Eski Anadolu Türkçesi, Turco-Arabic: تورکچه‌سی اسکی تورکچه اسکی انادولو), also referred to as Old Anatolian Turkic (Turkish: Eski Anadolu Türkisi, Old Turkish: انادولو تورکیسی اسکی), was the form of the Turkish language spoken in Anatolia from the 11th to 15th centuries. It is also called Turkce or Turki, it developed into Early Ottoman Turkish and Middle Azerbaijani. It was written in the Perso-Arabic script. Unlike in later Ottoman Turkish, short-vowel diacritics were used.

It had no official status until 1277, when Mehmet I of Karaman declared a firman in an attempt to break the dominance of Persian:

The Turkish alphabet reform (Turkish: Harf Devrimi or Harf İnkılâbı) is the general term used to refer to the process of adopting and applying a new alphabet in Turkey, which occurred with the enactment of Law No. 1353 on "Acceptance and Application of Turkish Letters" on 1 November 1928. The law was published in the Official Gazette on 3 November 1928, and came into effect on that day. With the approval of this law, the validity of the Ottoman Turkish alphabet, which was based on the Arabic script, came to an end, and the modern Turkish alphabet based on the Latin script was introduced.

The Turkish alphabet differs somewhat from the alphabets used in other languages that use the Latin script. It includes letters modified to represent the sounds of the Turkish language (e.g., Ç, Ö, Ü), including some unused in other languages (Ş, Ğ, contrasting dotted and undotted İ / I). The pronunciation of some letters in the Turkish alphabet also differs from the pronunciation of said letters in most other languages using the Latin alphabet. For example, the pronunciation of the letter C in the Turkish alphabet is /d͡ʒ/, the equivalent of J in English, whereas in the English alphabet, it represents the /k/ or /s/ sound.

The Armeno-Turkish alphabet is a version of the Armenian script sometimes used to write Ottoman Turkish until 1928, when the Latin-based modern Turkish alphabet was introduced. The Armenian script was not just used by ethnic Armenians to write the Turkish language, but also by the non-Armenian Ottoman Turkish elite.

An American correspondent in Marash in 1864 called the alphabet "Armeno-Turkish", describing it as consisting of 31 Armenian letters and "infinitely superior" to the Arabic or Greek alphabets for rendering Turkish.

The Common Turkic alphabet is a project of a single Latin alphabet for all Turkic languages based on a slightly modified Turkish alphabet, with 34 letters recognised by the Organization of Turkic States.

The Uyghur Cyrillic alphabet (Uyghur: Уйғур Кирил Йезиқи, Arabic alphabet: ئۇيغۇر يېڭى يېزىقى) is a Cyrillic-derived alphabet used for writing the Uyghur language, primarily by Uyghurs living in countries of the former Soviet Union. It is used to write Standard Soviet Uyghur.It was created around 1937 by the Government of the Soviet Union, which wanted an alternative to the Latin-derived alphabet it had devised some eleven years earlier, in 1926. The Soviets dropped their Latin script for Uyghur because they feared its local use would encourage Soviet Uyghurs to seek closer ties with Turkey, which had switched to a Latin-based alphabet in 1927–1928.

After the proclamation of the communist People's Republic of China in 1949, Russian linguists began helping the Chinese with codifying the various minority languages of China and promoting Cyrillic-derived alphabets. The Uyghurs of China thus also came to use the Cyrillic script for a period of time, until the Sino-Soviet split.