O with diaeresis is a letter of the Cyrillic alphabet

Cyrillic alphabet

The Cyrillic script or azbuka is an alphabetic writing system developed in the First Bulgarian Empire during the 10th century AD at the Preslav Literary School...

. In all its forms it looks exactly like

Homoglyph

In typography, a homoglyph is one of two or more characters, or glyphs, with shapes that either appear identical or cannot be differentiated by quick visual inspection. This designation is also applied to sequences of characters sharing these properties....

 the Latin letter Ö

Ö

"Ö", or "ö", is a character used in several extended Latin alphabets, or the letter O with umlaut to denote the front vowels or . In languages without umlaut, the character is also used as a "O with diaeresis" to denote a syllable break, wherein its pronunciation remains an unmodified .- O-Umlaut...

 (Ö ö Ö ö).

O with diaeresis is used in the alphabets of the Altay

Altay language

Altay is a language of the Turkic group of languages. It is an official language of Altai Republic, Russia. The language was called Oyrot prior to 1948. There were ca...

, Khakas

Khakas language

Khakas is a Turkic language spoken by the Khakas people, who mainly live in the southern Siberian Khakas Republic, or Khakassia, in Russia...

, Komi

Komi language

The Komi language is a Finno-Permic language spoken by the Komi peoples in the northeastern European part of Russia. Komi is one of the two members of the Permic subgroup of the Finno-Ugric branch...

, Kurdish

Kurdish language

Kurdish is a dialect continuum spoken by the Kurds in western Asia. It is part of the Iranian branch of the Indo-Iranian group of Indo-European languages....

, Mari

Mari language

The Mari language , spoken by more than 600,000 people, belongs to the Uralic language family. It is spoken primarily in the Mari Republic of the Russian Federation as well as in the area along the Vyatka river basin and eastwards to the Urals...

 and Udmurt

Udmurt language

Udmurt is an Uralic language, part of the Permic subgroup, spoken by the Udmurt natives of the Russian constituent republic of Udmurtia, where it is coofficial with Russian. It is written in the Cyrillic script with five additional characters. Together with Komi and Komi-Permyak languages, it...

  languages.

Usage

In Altay

Altay language

Altay is a language of the Turkic group of languages. It is an official language of Altai Republic, Russia. The language was called Oyrot prior to 1948. There were ca...

 and Khakas

Khakas language

Khakas is a Turkic language spoken by the Khakas people, who mainly live in the southern Siberian Khakas Republic, or Khakassia, in Russia...

, it represents the close-mid front rounded vowel

Close-mid front rounded vowel

The close-mid front rounded vowel, or high-mid front rounded vowel, is a type of vowel sound, used in some spoken languages. The symbol in the International Phonetic Alphabet that represents this sound is , a lowercase letter o with a diagonal stroke through it, derived from the Danish, Norwegian...

 /ø/.

In Komi

Komi language

The Komi language is a Finno-Permic language spoken by the Komi peoples in the northeastern European part of Russia. Komi is one of the two members of the Permic subgroup of the Finno-Ugric branch...

, it represents the schwa

Schwa

In linguistics, specifically phonetics and phonology, schwa can mean the following:*An unstressed and toneless neutral vowel sound in some languages, often but not necessarily a mid-central vowel...

 /ə/.

In Kurdish

Kurdish language

Kurdish is a dialect continuum spoken by the Kurds in western Asia. It is part of the Iranian branch of the Indo-Iranian group of Indo-European languages....

, it represents the close back rounded vowel

Close back rounded vowel

The close back rounded vowel, or high back rounded vowel, is a type of vowel sound, used in many spoken languages. The symbol in the International Phonetic Alphabet that represents this sound is , and the equivalent X-SAMPA symbol is u....

 /u/.

In Mari

Mari language

The Mari language , spoken by more than 600,000 people, belongs to the Uralic language family. It is spoken primarily in the Mari Republic of the Russian Federation as well as in the area along the Vyatka river basin and eastwards to the Urals...

, it represents the open-mid front rounded vowel  /œ/.

In Udmurt

Udmurt language

Udmurt is an Uralic language, part of the Permic subgroup, spoken by the Udmurt natives of the Russian constituent republic of Udmurtia, where it is coofficial with Russian. It is written in the Cyrillic script with five additional characters. Together with Komi and Komi-Permyak languages, it...

, it represents the open-mid back unrounded vowel /ʌ/.

In Russian

Russian language

Russian is a Slavic language used primarily in Russia, Belarus, Uzbekistan, Kazakhstan, Tajikistan and Kyrgyzstan. It is an unofficial but widely spoken language in Ukraine, Moldova, Latvia, Turkmenistan and Estonia and, to a lesser extent, the other countries that were once constituent republics...

 books until the beginning of the 20th century, the letter Ӧ has been sporadically used instead of Ё in foreign names and loanwords.

Computing codes

character	Ӧ		ӧ
Unicode name	CYRILLIC CAPITAL LETTER O WITH DIAERESIS		CYRILLIC SMALL LETTER O WITH DIAERESIS
character encoding	decimal	hex	decimal	hex
Unicode Unicode Unicode is a computing industry standard for the consistent encoding, representation and handling of text expressed in most of the world's writing systems...	1254	04E6	1255	04E7
UTF-8 UTF-8 UTF-8 is a multibyte character encoding for Unicode. Like UTF-16 and UTF-32, UTF-8 can represent every character in the Unicode character set. Unlike them, it is backward-compatible with ASCII and avoids the complications of endianness and byte order marks...	211 166	D3 A6	211 167	D3 A7
Numeric character reference Numeric character reference A numeric character reference is a common markup construct used in SGML and other SGML-related markup languages such as HTML and XML. It consists of a short sequence of characters that, in turn, represent a single character from the Universal Character Set of Unicode...	Ӧ	Ӧ	ӧ	ӧ

See also

• О о : Cyrillic letter O
  O (Cyrillic)
  O is a letter of the Cyrillic script.O commonly represents the close-mid back rounded vowel , like the pronunciation of ⟨o⟩ in "go".-History:The Cyrillic letter O was derived from the Greek letter Omicron ....
  
  
• Cyrillic characters in Unicode
  Cyrillic characters in Unicode
  The Cyrillic script is encoded in four blocks in Unicode, all in BMP:* Cyrillic: , 256 characters* Cyrillic Supplement: , 48 characters* Cyrillic Extended-A: , 32 characters* Cyrillic Extended-B: , 96 characters...