Ø

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Contents 1 Usage 2 In languages 3 History 4 On computers 5 Mathematics 6 Music 7 Other uses 8 Footnotes 9 References 10 See also

Ø (minuscule: "ø"), is a vowel and a letter used in the Danish, Faroese and Norwegian languages.

[edit] Usage

• In modern Danish, Faroese, and Norwegian, the letter is a monophthongal close-mid front rounded vowel, the IPA symbol for which is also [ø]. To non-rhotic English speakers, the vowel it sounds most like is the vowel in "bird" or "hurt". Like so many vowels, it has slight variations of the quality called "light" (in Danish søster ("sister") pronounced like eu in French bleu) and "dark" (in Danish "mørke" ("darkness") pronounced similarly to i of English bird); compare light and dark a in English hat and far. (in^[1])
  • However, in the Suðuroy-dialect of Faroese short ø is pronounced [ʏ], e.g. børn [bʏdn] (children).

• The name of this letter is the same as the sound it represents. Speakers of languages which use the letter ø hold that it is not a ligature or a diacritical variant of the letter o (That is, emically they perceive it as a different letter entirely). Though not its native name, among English-speaking typographers the symbol may be called a "slashed o" or "o with stroke".

• 'Ø' is equivalent to the vowel and letter 'Ö' in the Icelandic, Swedish, Estonian and Finnish alphabets and languages.

• The letter Ø is also used in the orthographies of some African languages such as Lendu spoken in Congo-Kinshasa and Koonzime spoken in Cameroon.

[edit] In languages

• The Turkish, Azerbaijani, Turkmen, Tatar, Finnish, Swedish, Icelandic, Rotuman, German, Estonian, and Hungarian alphabets use the letter "Ö" instead of Ø. Hungarian uses "Ő" for the same sound lengthened.
• In Danish (and Bokmål Norwegian) spelling, ø is also a word and means "island".
• The symbol "ø" is used in the International Phonetic Alphabet to indicate the sound of the Danish and Norwegian letter, the close-mid front rounded vowel.
• Although it never appears elsewhere, the letter Ø-with-umlaut (Ø̈, ø̈) was used by the Øresund bridge company, as part of their logotype. Since it did not exist in computer fonts, it was not used in text. The logotype now used has a normal Ø. Danish and Swedish national railways use it in pictograms marking trains crossing the Øresund (da)/Öresund (sv) Bridge between the nations.
• There are examples in typesetting of ø being confused with the Greek φ.^{[citation needed]}
• The Cyrillic alphabet has "Ө" as the equivalent letter, which is used in the Cyrillic alphabets for Kazakh, Mongolian, Azerbaijani, etc.
• In linguistics, the capital is used to refer to the linguistic zero.

[edit] History

There are at least two theories about the origin of the letter ø:

• That it arose as a version of the ligature Œ for a diphthong spelled "oe", with the horizontal line of the "e" written across the "o".
• That it arose in Anglo-Saxon England as an O and an I written in the same place, to represent a long close [ö] sound resulting from i-mutation of [ō]: compare Bede's Northumbrian Anglo-Saxon period spelling Coinualch for standard Cēnwealh (a man's name) (in a text in Latin). Later the letter ø disappeared from Anglo-Saxon as the Anglo-Saxon sound [ø] changed to [ē], but by then use of the letter ø had spread from England to Scandinavia.

[edit] On computers

• The name of this letter in Unicode is "Latin capital/small letter O with stroke". In Unicode, as in ISO 8859-1 before it, the letters 'Ø' and 'ø' have the respective code points U+00D8 and U+00F8.
• In the TeX typesetting system, the letter is produced by \o
• On a Mac operating system using a US English-language keyboard, the letter can be typed by holding the [Option] key while typing O, or o, to yield Ø, or ø.
• On an Amiga operating system using any keyboard map, the letter can be typed by holding the [Alt] key while typing O, or o, to yield Ø, or ø.
• On Microsoft Windows, using the "United States-International" keyboard setting, it can be typed by holding down the Alt-Gr key and pressing "L". It can also be typed under any keyboard setting by holding down the [Alt] key while typing 0216 or 0248 on the numeric keypad, provided the system uses code page 1252 as system default. (Code page 1252 is a superset of ISO 8859-1, and 216 and 248 are the decimal equivalents of hexadecimal D8 and F8.)
• In HTML character entity references, needed in cases where the letter is not available by ordinary coding, the codes are Ø and ø.
• In the X Window System environment, one can produce these characters by pressing Alt-Gr and o or O, or by pressing the Multi key followed with a slash and then o or O.
• In some systems, such as older versions of MS-DOS, the letter Ø is not part of the widely used code page 437. In Scandinavian codepages, Ø replaces the yen sign (¥) at 165, and ø replaces the ¢ sign at 162.

[edit] Mathematics

• The letter "Ø" is sometimes used in mathematics as a replacement for the symbol "∅" (Unicode character U+2205), referring to the empty set as established by Bourbaki. The "∅" symbol is always drawn as a slashed circle, whereas in most typefaces the letter "Ø" is a slashed ellipse. Virtually identical is the diameter sign (Unicode character U+2300).

[edit] Music

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• Judas Ø is a B-Side and Rarities album released by the popular Alternative Rock band, The Smashing Pumpkins.
• In music theory, ø is widely used as a chord label to represent a half-diminished chord. (m7b5: 1 - b3 - b5 - b7). For example, Cm7b5 would be notated as Cø.
• "Ø" is the name of a Finnish experimental Intelligent Dance Music artist, also known as Mika Vainio.
• ØØ Void is an album by the Seattle-based drone doom metal band Sunn O))).
• "Zerøx" is one of the first singles by Adam & the Ants, from their first lineup in 1979
• Bløf is a Dutch pop band.
• Erlend Øye is a Norwegian guitarist and vocalist from Kings of Convenience and The Whitest Boy Alive.
• The Dø is a French Folk-Rock duet.
• The 1980s indie band The Bolshoi spelt their name Bølshøi (with one ø reversed for symmetry) on album covers.
• The British New Wave band Fashiøn replaced the letter "O" with "Ø" on their records for both the band name and song titles.
• American Christian metalcore band UNDERØATH applies the "Ø" in their name and logo.
• American hardcore punk band LeATHERMØUTH use "Ø" in their name and logo.
• American band Freezepop has a song titled "Super Sprøde".
• American musician Bob Mould has a song titled "Egøverride".
• Deathmøle is the name of a virtual rock band created by Jeph Jacques. Whether the ø changes the pronunciation or is just for show (such as rock dots) is unknown.

[edit] Other uses

• In engineering drawings, the symbol ⌀ (closely resembling Ø) preceding a dimension indicates a diameter.
• In photography, the symbol ⌀ (closely resembling Ø) represents the lens diameter, i.e. a lens with a diameter of 82 mm would be written on the lens as: ⌀ 82 mm
• As an abbreviation for Enhedslisten, a Danish political party
• The letter ∅ with two brackets symbolizing a double no set was used as the gang symbol for the Lords of Chaos, a self-styled teen militia. Ex. ( Ø )
• In linguistics, a zero element (i.e. a grammatical element represented by the absence of a word) is represented by ∅, such as the difference in English between the articles "the", "a", "an", and instances where nouns are not preceded by articles, represented by ∅.
• In Indonesian car number plates, the symbol ∅ (closely resembling Ø) is placed behind number of registration to distinguish it from number 0. For example: B 2031 ∅T, which is registered in Jakarta.
• The ø is used as the o in "The Wørd", a regular segment on The Colbert Report.
• A similar symbol was used to mark the name of a gladiator who died in combat in Roman mosaics representing fights.
• In phpMyAdmin the ø is used to substitute the "mean" or "average"
• In Audio Engineering the ø is used to represent a signal whose polarity (sometimes called phase) has been reversed.
• Many scholars in biological and human sciences use Mø as shorthand notation for "macrophage." Whether this was a parallel invention to, or corruption of, MΦ ("phi" for "phage") is unclear.

[edit] Footnotes

[edit] References

• Robert Bringhurst (2002). The Elements of Typographic Style, pp. 270, 284. For typographic reference to "slashed o".

[edit] See also

• Å
• Æ
• Ä
• Œ
• Ö
• Slashed zero

The Basic modern Latin alphabet
Aa	Bb	Cc	Dd	Ee	Ff	Gg	Hh	Ii	Jj	Kk	Ll	Mm	Nn	Oo	Pp	Qq	Rr	Ss	Tt	Uu	Vv	Ww	Xx	Yy	Zz
Letter O with diacritics ÓóÒòŎŏÔôỐốỒồỖỗỔổǑǒÖöȪȫŐőÕõṌṍṎṏȬȭȮȯȰȱØøǾǿǪǫǬǭŌōṒṓṐṑỎỏȌȍȎȏƠơỚớỜờỠỡỞởỢợỌọỘộƟɵⱺ Letters using stroke sign ȺⱥɃƀȻȼĐđɆɇǤǥĦħƗɨɈɉꝀꝁŁłØøⱣᵽɌɍŦŧɄʉɎɏƵƶꝤꝥ history • palaeography • derivations • diacritics • punctuation • numerals • Unicode • list of letters • ISO/IEC 646

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