Open O

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Ɔ ɔ
Ɔ ɔ

Open o (majuscule: Ɔ, minuscule: ɔ) is a letter of the extended Latin alphabet. In the International Phonetic Alphabet, it represents the open-mid back rounded vowel. It is used in the orthographies of many African languages using the African reference alphabet.

Unicode[edit]

Character Ɔ ɔ
Unicode name LATIN CAPITAL LETTER OPEN O LATIN SMALL LETTER OPEN O
Encodings decimal hex decimal hex
Unicode 390 U+0186 596 U+0254
UTF-8 198 134 C6 86 201 148 C9 94
Numeric character reference Ɔ Ɔ ɔ ɔ

In Windows, the lower case ɔ can be typed by holding the Alt key and typing +254 and the capital Ɔ by holding the Alt key and typing (?).

On the Mac OS U.S.Extended keyboard, ɔ and Ɔ can be typed with Option-colon followed by 'c' or 'C'.

Similar letters[edit]

Johann Martin Schleyer proposed an alternate form with a broken O for Ö in Volapük but it was rarely used.
The first of these Claudian letters is the antisigma.

The letter looks like a reversed letter 'C'. Claudius introduced a Ɔ (the antisigma) with the intention of replacing bs and ps.

The Yucatec Maya language used Ɔ as a consonant in the orthography of the Colonial period. Now dz or tz' is preferred.

See also[edit]