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Line 20: Line 20:
|fam4=[[File:Phoenician ayin.svg|20px|Phoenician Ayin]]
|fam4=[[File:Phoenician ayin.svg|20px|Phoenician Ayin]]
|fam5=[[Omicron|Ο ο]]
|fam5=[[Omicron|Ο ο]]
|fam6=[[]
|fam6=[[𐌏]]
|usageperiod=~−700 to present
|usageperiod=~−700 to present
|children={{grid list|[[Ö]]|[[ⱺ]]|[[Ø]]|[[Œ]]|[[Ɔ]]|[[Ơ]]|[[Ỏ]]|[[Ꝋ]]|[[∅]]|[[º]]|{{not a typo|℅}}}}
|children={{grid list|[[Ö]]|[[ⱺ]]|[[Ø]]|[[Œ]]|[[Ɔ]]|[[Ơ]]|[[Ỏ]]|[[Ꝋ]]|[[∅]]|[[º]]|{{not a typo|℅}}}}

Latest revision as of 19:56, 14 November 2024

This article is about the letter of the alphabet. For the number zero, see 0. For other uses, see O (disambiguation).
For technical reasons, ":O" redirects here. For the keyboard symbol, see List of emoticons.

O
O o
Usage
Writing systemLatin script
TypeAlphabetic
Language of originLatin language
Sound values
In UnicodeU+004F, U+006F
Alphabetical position15
History
Development
Time period~−700 to present
Descendants
Sisters
Other
Associated graphso(x)
Writing directionLeft-to-right
This article contains phonetic transcriptions in the International Phonetic Alphabet (IPA). For an introductory guide on IPA symbols, see Help:IPA. For the distinction between [ ], / / and ⟨ ⟩, see IPA § Brackets and transcription delimiters.
O
ISO basic
Latin alphabet
AaBbCcDdEeFfGgHhIiJjKkLlMmNnOoPpQqRrSsTtUuVvWwXxYyZz

O, or o, is the fifteenth letter and the fourth vowel letter of the Latin alphabet, used in the modern English alphabet, the alphabets of other western European languages and others worldwide. Its name in English is o (pronounced /ˈoʊ/), plural oes.[1]

Name

[edit]

In English, the name of the letter is the "long O" sound, pronounced /ˈoʊ/. In most other languages, its name matches the letter's pronunciation in open syllables.

Pronunciation of the name of the letter ⟨o⟩ in European languages

History

[edit]
Egyptian Phoenician
Ayin 		Western Greek
Omicron 		Etruscan
O 		Latin
O
Egyptian Hieroglyph describing an eye Latin O
Late Renaissance or early Baroque design of an O, from 1627

Its graphic form has remained fairly constant from Phoenician times until today. The name of the Phoenician letter was ʿeyn, meaning "eye", and its shape originates simply as a drawing of a human eye (possibly inspired by the corresponding Egyptian hieroglyph, cf. Proto-Sinaitic script). Its original sound value was that of a consonant, probably [ʕ], the sound represented by the cognate Arabic letter ع ʿayn.[2]

The use of this Phoenician letter for a vowel sound is due to the early Greek alphabets, which adopted the letter "omicron" to represent the vowel /o/. The letter was adopted with the value in the Old Italic alphabets, including the early Latin alphabet. In Greek, a variation of the form later came to differentiate this long sound (omega, meaning "large O") from the short o (Omicron, meaning "small o"). The Greek omicron gave rise to the corresponding Cyrillic letter O.[2][3]

Use in writing systems

[edit]
Pronunciation of ⟨o⟩ by language
Orthography Phonemes
Standard Chinese (Pinyin) /ə/, /u/
Czech /ɔ/
English /ɒ/, /oʊ/, /ə/, /ɔː/, /aɪə/
French /o/, /ɔ/
German /ɔ/, /oː/, /o/
Irish /ɔ/, /ə/
Italian /o/, /ɔ/
Malagasy /u/
Malay /ɔ/
Occitan /u/
Polish /ɔ/
Portuguese /o/, /ɔ/, /u/, /w/
Spanish /o/
Slovak /ɔ/
Turkish /o/

English

[edit]

The letter ⟨o⟩ is the fourth most common letter in the English alphabet.[4] Like the other English vowel letters, it has associated "long" and "short" pronunciations. The "long" ⟨o⟩ as in boat is actually most often a diphthong /oʊ/ (realized dialectically anywhere from [o] to [əʊ]). In English, there is also a "short" ⟨o⟩ as in fox, /ɒ/, which sounds slightly different in different dialects. In most dialects of British English, it is either an open-mid back rounded vowel [ɔ] or an open back rounded vowel [ɒ]; in American English, it is most commonly an unrounded back [ɑ] to a central vowel [a].[5]

Common digraphs include ⟨oo⟩, which represents either /uː/ or /ʊ/; ⟨oi⟩ or ⟨oy⟩, which typically represents the diphthong /ɔɪ/, and ⟨ao⟩, ⟨oe⟩, and ⟨ou⟩ which represent a variety of pronunciations depending on context and etymology.[5]

In other contexts, especially before a letter with a minim, ⟨o⟩ may represent the sound /ʌ/, as in 'son' or 'love'. It can also represent the semivowel /w/, as in choir or quinoa.[citation needed]

"O" in isolation is a word, also spelled "oh" and pronounced /oʊ/. Before a noun, usually capitalized, it indicates direct address (the vocative case), as in the titles "O Canada" or "O Captain! My Captain!" or in certain verses of the Bible.[6]

Other languages

[edit]

⟨o⟩ is commonly associated with the open-mid back rounded vowel [ɔ], mid back rounded vowel [o̞] or close-mid back rounded vowel [o] in many languages. Other languages use ⟨o⟩ for various values, usually back vowels which are at least partly open. Derived letters such as ⟨ö⟩ and ⟨ø⟩ have been created for the alphabets of some languages to distinguish values that were not present in Latin and Greek, particularly rounded front vowels.[citation needed]

Other systems

[edit]

In the International Phonetic Alphabet, ⟨o⟩ represents the close-mid back rounded vowel.[7]

Other uses

[edit]
Main article: O (disambiguation)
  • Oxygen, symbol O, a chemical element
[edit]
See also: circle symbol
[edit]

Derived signs, symbols and abbreviations

[edit]

Ancestors and siblings in other alphabets

[edit]
  • 𐤏 : Semitic letter Ayin, from which the following symbols originally derive:
    • Ω ω : Greek letter Omega
    • Ο ο : Greek letter Omicron
      • Ⲟ ⲟ : Coptic letter O, which derives from Greek omicron
      • О о : Cyrillic letter O, which also derives from Omicron
      • 𐌏 : Old Italic O, which derives from Greek Omicron, and is the ancestor of modern Latin O
      • Օ օ : Armenian letter O[citation needed]

Other representations

[edit]

Computing

[edit]
Character information
Preview O o Ｏ ｏ
Unicode name LATIN CAPITAL LETTER O LATIN SMALL LETTER O FULLWIDTH LATIN CAPITAL LETTER O FULLWIDTH LATIN SMALL LETTER O
Encodings decimal hex dec hex dec hex dec hex
Unicode 79 U+004F 111 U+006F 65327 U+FF2F 65359 U+FF4F
UTF-8 79 4F 111 6F 239 188 175 EF BC AF 239 189 143 EF BD 8F
Numeric character reference O O o o Ｏ Ｏ ｏ ｏ
EBCDIC family 214 D6 150 96
ASCII[a] 79 4F 111 6F

Other

[edit]

See also

[edit]
  • O mark
  • Open O (Ɔ ɔ)
  • 0 (zero). The capital letter O may be mistaken or misused for the number 0, as they appear quite identical in some typefaces. Early typewriters did not have a 'zero' key.

Notes

[edit]
  1. ^ Also for encodings based on ASCII, including the DOS, Windows, ISO-8859 and Macintosh families of encodings.[citation needed]

References

[edit]
  1. ^ "O" Oxford English Dictionary, 2nd edition (1989);Chambers-Happap, "oes" op. cit. Oes is the plural of the name of the letter. The plural of the letter itself is rendered Os, O's, os, o's.
  2. ^ a b "Evolution of Alphabets". webspace.ship.edu. Retrieved January 3, 2024.
  3. ^ "Cyrillic script". www.omniglot.com. Retrieved January 3, 2024.
  4. ^ "Frequency Table". www.math.cornell.edu.
  5. ^ a b "International Phonetic Alphabet for American English - IPA Chart". easypronunciation.com. Retrieved January 3, 2024.
  6. ^ "Quick search: "o lord"". Retrieved December 5, 2013.
  7. ^ "IPA Chart with Sounds – International Phonetic Alphabet Sounds". www.internationalphoneticalphabet.org. Retrieved October 22, 2023.
  8. ^ Constable, Peter (April 19, 2004). "L2/04-132 Proposal to add additional phonetic characters to the UCS" (PDF).
  9. ^ a b Everson, Michael; Baker, Peter; Emiliano, António; Grammel, Florian; Haugen, Odd Einar; Luft, Diana; Pedro, Susana; Schumacher, Gerd; Stötzner, Andreas (January 30, 2006). "L2/06-027: Proposal to add Medievalist characters to the UCS" (PDF).
  10. ^ Bunčić, Daniel (January 12, 2021). "L2/21-039: Proposal to include the letter 'Old Polish O'" (PDF).
  11. ^ Lemonen, Therese; Ruppel, Klaas; Kolehmainen, Erkki I.; Sandström, Caroline (January 26, 2006). "L2/06-036: Proposal to encode characters for Ordbok över Finlands svenska folkmål in the UCS" (PDF).
  12. ^ Miller, Kirk; Ashby, Michael (November 8, 2020). "L2/20-252R: Unicode request for IPA modifier-letters (a), pulmonic" (PDF).
  13. ^ Everson, Michael; et al. (March 20, 2002). "L2/02-141: Uralic Phonetic Alphabet characters for the UCS" (PDF).
  14. ^ Everson, Michael; Dicklberger, Alois; Pentzlin, Karl; Wandl-Vogt, Eveline (June 2, 2011). "L2/11-202: Revised proposal to encode "Teuthonista" phonetic characters in the UCS" (PDF).
  15. ^ Anderson, Deborah; Everson, Michael (June 7, 2004). "L2/04-191: Proposal to encode six Indo-Europeanist phonetic characters in the UCS" (PDF).
  16. ^ Miller, Kirk (July 11, 2020). "L2/20-125R: Unicode request for expected IPA retroflex letters and similar letters with hooks" (PDF).
  17. ^ Anderson, Deborah (December 7, 2020). "L2/21-021: Reference doc numbers for L2/20-266R "Consolidated code chart of proposed phonetic characters" and IPA etc. code point and name changes" (PDF).
  18. ^ "Earliest Uses of Symbols of Set Theory and Logic". jeff560.tripod.com.
  19. ^ "Script (or Calligraphic)". www.w3.org. Retrieved January 3, 2024.
[edit]
Look up O or o in Wiktionary, the free dictionary.
  • Media related to O at Wikimedia Commons
Retrieved from "https://en.wikipedia.org/w/index.php?title=O&oldid=1257412237"