Open O

{{Short description|Letter of the Latin alphabet}} {{redirect-distinguish-text|Ɔ|the Claudian letter Ↄ, the Greek letter Ͻ, the Hebrew letter כ, or the Malayam vowel sign ാ}} {{Redirect|ɔ|the sound represented by /ɔ/ in the IPA|Open-mid back rounded vowel}} {{refimprove|date=August 2017}} {{Infobox grapheme | name = Ɔ | letter = Ɔ ɔ | variations = | image = File:Latin letter open O.svg | imageclass = skin-invert-image | imagesize = 200px | imagealt = Upper and lower case Open O | script = Latin script | type = Alphabet | typedesc = ic and Logographic | language = Dagbani language, Ewe language, Latin language, Lingala language, Yucatec Maya language | phonemes = {{flex list|[{{IPAlink|ɔ}}] [{{IPAlink|tsʼ}}]}} | unicode = U+0186, U+0254 | alphanumber = | number = | fam1 = C c | fam2 = | usageperiod = | children = | sisters = | equivalents = Ꙡ | associates = | direction = Left-to-Right }}

'''Open o''' or '''turned c''' (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 to transcribe the alveolar ejective affricate {{IPA|[t͡sʼ]}} consonant in the orthography of the Colonial period. Now ''dz'' or ''tsʼ'' is preferred.<ref> {{cite web|url=http://research.famsi.org/whos_who/orthography.htm|title=Who's who in the Classic Maya world: ''Orthography used in the Who's Who''|last=Mathews |first=Peter|website=Foundation for the Advancement of Mesoamerican Studies, Inc.|publisher=Los Angeles County Museum of Art|access-date=June 19, 2024}} </ref>

==Unicode== {{charmap |0186|name1=Latin Capital Letter Open O |0254|name2=Latin Small Letter Open O }}

On the macOS US Extended keyboard, ''ɔ'' and ''Ɔ'' can be typed with {{key press|Option|colon}} followed by {{key press|c}} or {{key press|C}}.{{fact|date=October 2021}}

==Related characters== ===Descendants and related characters in the Latin alphabet=== *Ɔ with diacritics: ɔ́ ɔ̀ ɔ̃ ᶗ<ref>{{Cite web|url=https://www.unicode.org/L2/L2004/04132-n2740-phonetic.pdf|title=L2/04-132 Proposal to add additional phonetic characters to the UCS|date=2004-04-19|first=Peter|last=Constable}}</ref> *Uralic Phonetic Alphabet-specific symbols related to Ɔ:<ref>{{Cite web|url=https://www.unicode.org/L2/L2002/02141-n2419-uralic-phonetic.pdf|title=L2/02-141: Uralic Phonetic Alphabet characters for the UCS|date=2002-03-20|first1=Michael|last1=Everson|authorlink1=Michael Everson|display-authors=etal}}</ref> **{{Unichar|1D10|LATIN LETTER SMALL CAPITAL OPEN O}} **{{Unichar|1D12|LATIN SMALL LETTER SIDEWAYS OPEN O}} **{{Unichar|1D53|MODIFIER LETTER SMALL OPEN O}}

===Similar looking letters=== class=skin-invert-image|thumb|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''.

thumb|400px|Definition from Aasen (1873), ''Norsk ordbog med dansk forklaring'', showing the Danish explanatory symbol {{angbr|ɔ:}}.|class=skin-invert-image The Scandinavian explanatory symbol (''forklaringstegnet'') can be typeset using the open o followed by a colon, thus: '''ɔ:'''. It is used to mean "namely", "id est", "scilicet" or similar.<ref>{{cite web |url=http://www.typografi.org/forklaringstegn/forklaringstegn.html |lang=no |website=Typografi i Norge |title=Forklaringstegnet: en savnet del av det typografiske repertoar? |date=2006-08-02 |orig-date=last updated 2010-09-29 |url-status=live |archive-url=https://web.archive.org/web/20201105130113/http://www.typografi.org/forklaringstegn/forklaringstegn.html |archive-date=2020-11-05 }}</ref>

This letter is often used to refer to the Copyleft official sign, which looks like an open o with a circle around it.

==See also== * Open E * Writing systems of Africa § Latin script * Omicron {{Latin script|Ɔ}}

==References== {{Reflist}}

Oz Oz Category:Vowel letters