High Quality Content by WIKIPEDIA articles! The Cyrillic letter Oe or Barred O ( , ) is an O with a horizontal line through it. Its ISO 9 transliteration is ô. Despite having a similar shape, it is related neither to the letter Theta ( , ) of the Greek alphabet nor to the archaic Cyrillic letter Fita ( , ). It is used in Bashkir, Kalmyk, Kazakh, Kyrgyz, Mongolian, Buryat and Yakut, where it represents the open-mid front rounded vowel / /. In Kazakh, this letter may also express /w /.