Barred o
Barred o is a letter in several Latin-script alphabets.
Historic examples include the Azerbaijani alphabet used between 1922 and 1933 and its successor, the Uniform Turkic Alphabet, in which it represented the open-mid front rounded vowel.
In many alphabets it was replaced by the Cyrillic letter Ө ө in 1939. In Azerbaijani, it was again replaced by the Latin letter Ö ö in 1991.
The Tatar Latin alphabet devised in the late 1990s by the Tatarstan authorities included the letter Ɵ ɵ. The letter is also part of the African [reference alphabet].
In the International [Phonetic Alphabet], the lowercase represents the close-mid [central rounded vowel].
The letter is not to be confused with the slashed zero, slashed O, the similar Latin letter Ꝋ ꝋ, the Cyrillic letters fita and Oe, the Greek theta, Tifinagh letter yab, or the Plimsoll symbol, despite their similar shapes.