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.

"Ɔ" redirects here. It is not to be confused with Ↄ.
Ɔ ɔ
Ɔ ɔ

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

Unicode
Character information
PreviewƆɔ
Unicode nameLATIN CAPITAL LETTER OPEN OLATIN SMALL LETTER OPEN O
Encodingsdecimalhexdecimalhex
Unicode390U+0186596U+0254
UTF-8198 134C6 86201 148C9 94
Numeric character referenceƆƆɔɔ

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.

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

Similar looking letters
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.

Definition from Aasen (1873), Norsk ordbog med dansk forklaring, showing the Danish explanatory symbol “ɔ:”.

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[3].

gollark: It's technically *possible*.
gollark: https://search.osmarks.tk/ is somehow still up.
gollark: My search engine doesn't actually have pages, so you should use that.
gollark: It's obviously on page 42.
gollark: Presumably, they just take the input executable, compress/encrypt/whatever its machine code, and store it as data in a new executable which also contains code to decompress/decrypt/whatever it and load it into memory from which it can be executed, but also presumably you already knew that and it's not very helpful.

See also

References
  1. Constable, Peter (2004-04-19). "L2/04-132 Proposal to add additional phonetic characters to the UCS" (PDF).
  2. Everson, Michael; et al. (2002-03-20). "L2/02-141: Uralic Phonetic Alphabet characters for the UCS" (PDF).
  3. http://www.typografi.org/forklaringstegn/forklaringstegn.html


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