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.

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

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

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

On a personal computer, ɔ can be typed by holding the ALT key and typing 596 on the number keypad. The capital Ɔ can be typed similarly by using ALT+390.

Related characters[edit]

Descendants and related characters in the Latin alphabet[edit]

  • Ɔ with diacritics: ɔ́ ɔ̀ ɔ̃ [1]
  • Uralic Phonetic Alphabet-specific symbols related to Ɔ :[2]
    • U+1D10 LATIN LETTER SMALL CAPITAL OPEN O
    • U+1D12 LATIN SMALL LETTER SIDEWAYS OPEN O
    • U+1D53 MODIFIER LETTER SMALL OPEN O

Similar looking letters[edit]

The first of these Claudian letters is the antisigma.

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

The Norwegian and Danish explanatory symbol (forklaringstegnet) can be typeset using the open o followed by a colon, thus: ɔ:. It is used for the meaning "namely", "id est", "scilicet" or similar and can be likened to the therefore sign (∴)[3].

See also[edit]

References[edit]