Xi (letter) Xi (letter) Xi (uppercase Ξ, lowercase ξ; ) is the 14th letter of the Greek alphabet. It is pronounced in Modern Greek, and generally or in English. In the system of Greek numerals, it has a value of 60. Xi was derived from the Phoenician letter samekh . Xi is not to be confused with the letter chi, which gave its form to the Latin letter X. Both in classical Ancient Greek and in Modern Greek, the letter Ξ represents the sound . In some archaic local variants of the Greek alphabet, this letter was missing. Instead, especially in the
Gagauz alphabet Gagauz alphabet The modern Gagauz alphabet is a 31-letter Latin-based alphabet modelled on the Turkish alphabet. Previously, during Soviet rule, Gagauz's official script was Cyrillic. Gagauz was first written in Greek letters in the late 1800s. The current 31-letter Gagauz alphabet, used for the Gagauz language, is a Latin-based alphabet modelled after the Turkish. It appears that the first alphabet to be used for the language was the Greek alphabet in the late 19th century. For example, orientalist Otto Blau claims that plays of Euripides had been translated into the Gagauz language and had been written with Greek letters. Beginning