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TheCyrillic script
Slavic letters
А А̂ А̄ Ӑ Ӓ Б В Г Ґ Д Ђ Ѓ Е Е̂ Е̄ Ё Є Ж З З́ Ѕ И І Ї Ꙇ И̂ Ӣ Й Ӥ Ј К Л Љ М Н Њ О О̂ О̄ Ӧ П Р С С́ Т Ћ Ќ У У̂ Ӯ Ў Ӱ Ф Х Ц Ч Џ Ш Щ Ꙏ Ъ Ы Ь Э Ю Я ʼ ˮ
Non-Slavic letters
А̊ А̃ Ӓ̄ Ӕ Ә Ә̃ Ӛ В̌ Ԝ Г̑ Г̇ Г̣ Г̌ Г̂ Г̆ Г̈ Г̊ Ҕ Ғ Ӻ Ғ̌ Ғ̊ Ӷ Г̡ Д́ Д̌ Д̈ Д̣ Д̆ Ӗ Е̃ Ё̄ Є̈ Ԑ Ԑ̈ Җ Ӝ Ӂ Ж̣ Ҙ Ӟ З̌ З̣ З̆ Ӡ И̃ И̇ Ҋ Қ Ӄ Ҡ Ҟ Ҝ К̣ К̊ Қ̊ Ԛ ᴫ Л́ Ӆ Ԯ Ԓ Л̈ Ӎ ᵸ Н́ Ӊ Ң Ԩ Ӈ Ҥ О̆ О̃ Ӧ̄ Ө Ө̄ Ө́ Ө̆ Ӫ Ԥ П̈ Р̌ Ҏ С̌ Ҫ С̣ С̱ Т́ Т̈ Т̌ Т̇ Т̣ Ҭ Ᲊ У̃ У̌ Ӳ У̊ Ӱ̄ Ұ Ү Ү́ Х̣ Х̱ Х̮ Х̑ Х̌ Ҳ Ӽ Х̊ Ӿ Ӿ̊ Һ Һ̈ Ԧ Ц̌ Ц̈ Ҵ Ҷ Ҷ̣ Ӵ Ӌ Ҹ Ч̇ Ч̣ Ҽ Ҿ Ш̣ ꚜ Ы̆ Ы̄ Ӹ ꚝ Ҍ Ҩ Э̆ Э̄ Э̇ Ӭ Ӭ́ Ӭ̄ Ю̆ Ю̈ Ю̄ Я̆ Я̄ Я̈ Ӏ
Archaic or unused letters
А̨ Б̀ Б̣ Б̱ В̀ Г̀ Г̧ Г̄ Г̓ Г̆ Ҕ̀ Ҕ̆ Ԁ Д̓ Д̀ Д̨ Ԃ Ꚁ Ꙣ Е̇ Е̨ Ж̀ Ж̑ Ꙃ Ꙅ Џ̆ Ꚅ Ꚅ̆ Ꙁ З̀ З̑ Ԅ Ԇ Ꚉ Ԫ Ꚃ Ꚕ І̂ І̣ І̨ Ј̵ Ј̃ Ꙉ К̓ К̀ К̆ Ӄ̆ К̑ К̇ К̈ К̄ Ԟ К̂ Л̀ Ԡ Ꙥ Ԉ Л̑ Л̇ Ԕ М̀ М̃ Ꙧ Н̀ Н̄ Н̧ Н̃ Ԋ Ԣ Н̡ Ѻ Ꙩ Ꙫ Ꙭ ꙮ Ꚙ Ꚛ П̓ П̀ П́ Ҧ П̧ П̑ Ҁ Ԛ̆ Р́ Р̀ Р̃ Ԗ С̀ С̈ Ԍ Ҫ̓ Т̓ Т̀ Ԏ Т̑ Ꚋ Т̧ Ꚍ Ꚍ̆ Ѹ Ꙋ У̇ У̨ ꙋ́ Ф̑ Ф̓ Х́ Х̀ Х̆ Х̇ Х̧ Х̾ Х̓ һ̱ Ѡ Ꙍ Ѽ Ѿ Ꙡ Ц̀ Ц́ Ц̓ Ꚏ Ꚏ̆ Ꚑ Ч́ Ч̀ Ч̆ Ч̑ Ч̓ Ԭ Ꚓ Ꚇ Ꚇ̆ Ҽ̆ Ш̀ Ш̆ Ш̑ Щ̆ Ꚗ Ꚗ̆ Ъ̄ Ъ̈ Ъ̈̄ Ꙑ Ы̂ Ы̃ Ѣ Ѣ́ Ѣ̈ Ѣ̆ Ꙓ Э̨ Э̂ Ꙕ Ю̂ Ꙗ Я̈ Я̂ Я̨ Ԙ Ѥ Ѧ Ꙙ Ѫ Ꙛ Ѩ Ꙝ Ѭ Ѯ Ѱ Ѳ Ѵ Ѷ Ꙟ
List of Cyrillic letters List of Cyrillic multigraphs
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This is a list of rareglyph variants of theCyrillic letterO. They were proposed for inclusion intoUnicode in 2007 and incorporated as in Unicode 5.1.^[1][2]

Monocular O (Ꙩ ꙩ) is one of the rareglyph variants ofCyrillic letterO. This glyph variant was used in certain manuscripts in theroot wordꙩко "eye",^[1] and also in some other functions, for example, in the word- and syllable-initial position. It is used in some latebirchbark letters of the 14th and 15th centuries, where it is usually differentiated from a regularо, used after consonants, also by width, being abroad On (ѻ) with a dot inside.

The letter resemblesInternational Phonetic Alphabetbilabial click (ʘ) and theGothic letterhwair (𐍈).

Binocular O (Ꙫ ꙫ) is found in certain manuscripts in theplural ordual forms of theroot wordeye, likeꙪчи.^[3]

A similar jocular glyph (called "double-dot wide O") has been suggested as a phonetic symbol for the "nasal-ingressive velar trill", aparalinguistic impression of a snort, due to the graphic resemblance to a pig snout.^[4]

Double monocular O (Ꙭ ꙭ) is one of the exoticglyph variants of theCyrillic letterO. This glyph variant can be found in certain manuscripts in theplural ordual forms of the wordeye, for exampleꙭчи "[two] eyes".

Multiocular O (ꙮ) is a uniqueglyph variant found in a single 15th-century manuscript, in theOld Church Slavonic phrase "серафими многоꙮчитїй" (abbreviated "мн҇оꙮчитїй";serafimi mnogoočitii,'many-eyedseraphim'). It was documented byYefim Karsky in 1928 in a copy of theBook of Psalms from around 1429,^[5][6] now found in the collection of theTrinity Lavra of St. Sergius.^[7]

The character was proposed for inclusion intoUnicode in 2007^[8] and incorporated as character U+A66E in Unicode version 5.1 (2008).^[9] The representative glyph had seven eyes and sat on thebaseline. However, in 2021, following atweet highlighting the character,^[10] it came to linguistMichael Everson's attention that the character in the 1429 manuscript was actually made up of ten eyes. After a 2022 proposal to change the character to reflect this, it was updated later that year for Unicode 15.0 to have ten eyes and to extend below the baseline.^[11][12] However, not all fonts support the ten-eyed variant as of March 2025^[update].

The letter in the original manuscript.

Multiocular O

The incorrect form originally implemented into Unicode (2007–2022).

Double O (Ꚙ ꚙ) is a variant of the letter О in theCyrillic script. It is found in some earlyOld Church Slavonic manuscripts, where it is used in place of⟨О⟩, such as inдвꚙе "two",ꚙбо "both",ꚙбанадесять "twelve", andдвꚙюнадесять "twelve".^[13] The Cyrillic "double O" resembles the Latin-scriptdouble-o ligature (ꝏ) and theInfinity symbol (∞).

Crossed O (Ꚛ ꚛ) is a glyph variant of Cyrillic O with the addition of a cross, used in Old Church Slavonic. The crossed O is primarily used in the wordꚛкрест (around, in the region of) in early Slavonic manuscripts,^[14] whose componentкрест means 'cross'.

Broad On, also known asRound Omega (Ѻ ѻ; italics:Ѻ ѻ) is a positional and orthographical variant of the Cyrillic O.On (ѻнъ,onŭ) is a traditional name of Cyrillic letterО; these names are still in use in the Church Slavonic alphabet.

Broad On is used only in theChurch Slavonic language. In its alphabet (in primers and grammar books), broad and regular shapes of О share the same position, as they are not considered different letters. Uppercase is typically represented by broad Ѻ, and lowercase is either regular о or dual: both broad ѻ and regular о (in the same way as Greek uppercase Σ is accompanied with two lowercases σ, ς). Phonetically, broad Ѻ/ѻ is the same as regular О/о.

In standardChurch Slavonic orthography (since the middle of the 17th century until present time), the broad shape of letter On is used instead of the regular shape of the same letter in the following cases:

• as the first letter of a word's root, which could fall:
  • at the beginning of the word: (ѻгнь,ѻтрокъ),
  • after a prefix: (праѻтецъ),
  • after another root in compound words (ѻбоюдуѻстрый);
• in the middle of the root in two geographical names (іѻрданъ—Jordan River,іѻппіа—city ofJaffa) and their derivatives;
• as thenumerical sign to represent the number 70 (However, Church Slavonic editions printed outside the Russian Empire have often ignored this rule and used regular о as the numerical sign).

Historically, Broad On was also used in the laterOld Russian period, including documents, letters and other vernacular texts, to signal the initial position of a word or a syllable or occasionally to mark a closed vowel (developed in North Russian dialects since the 14th century). It is found inbirch bark manuscripts and in some other Russian texts. Other glyphs could be used in the same functions, includingMonocular O andCyrillic Omega.

Broad On has no standard traditional name. The names used in literature (e.g. wide on) are shape-based or functional descriptions. A name from certain Russian sources,^[15] он польское,on pol'skoye (lit. "Polish O"), also points to the round shape of the letter, because Latin fonts fromPoland had round "O", and the typical old Cyrillic "O" was lens-shaped and condensed. Now the character is often referred to by its conventional Unicode name "Round Omega".^[16]

• Cyrillic script in Unicode
• Omega (Cyrillic)
• Latin letter ʘ (ʘ)
• Gothic letter Hwair (𐍈)
• Dotted zero

• Eyes in culture
• Palaeographic letters
• Cyrillic letters

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