Open O

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.

ASCII

This character does not exist in ASCII.

Unicode

In Unicode, the majuscule Ɔ is encoded in the Latin Extended-B block at U+0186 and the minuscule ɔ is encoded at U+0254.

In some Windows programs, the lower case ɔ can be typed by pressing Alt + 596 and the capital Ɔ, by pressing Alt + 390.

Similar letters

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 C. Claudius introduced a reversed C (the antisigma) with the intention of replacing bs and ps.

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

See also

• Open E
• Writing systems of Africa (section on Latin script)

The ISO basic Latin alphabet
Aa	Bb	Cc	Dd	Ee	Ff	Gg	Hh	Ii	Jj	Kk	Ll	Mm	Nn	Oo	Pp	Qq	Rr	Ss	Tt	Uu	Vv	Ww	Xx	Yy	Zz
Letter O with diacritics
Óó	Òò	Ŏŏ	Ôô	Ốố	Ồồ	Ỗỗ	Ổổ	Ǒǒ	Öö	Ȫȫ	Őő	Õõ	Ṍṍ	Ṏṏ	Ȭȭ	Ȯȯ	O͘o͘	Ȱȱ	Øø	Ǿǿ	Ǫǫ	Ǭǭ	Ōō	Ṓṓ	Ṑṑ
Ỏỏ	Ȍȍ	Ȏȏ	Ơơ	Ớớ	Ờờ	Ỡỡ	Ởở	Ợợ	Ọọ	Ộộ	Ɵɵ	Ɔɔ	ⱺ
Related
History Palaeography Derivations Diacritics Punctuation Numerals Unicode List of letters ISO/IEC 646