"Ø", "ø" is a vowel and a letter used in the Danish, Faroese and Norwegian alphabets. This image has been released into the public domain by the copyright holder, its copyright has expired, or it is ineligible for copyright. ... Note: This page contains phonetic information presented in the International Phonetic Alphabet (IPA) using Unicode. ... This article is about letter, a written message from one party to another. ... The Danish and Norwegian alphabet consists of 29 letters: A, B, C, D, E, F, G, H, I, J, K, L, M, N, O, P, Q, R, S, T, U, V, W, X, Y, Z, Æ, Ø, Å The letter Å was introduced in Norwegian in 1917, replacing Aa. Similarly...

Amongst the English vowels it sounds the most like the 'ir' in "bird" [1] (http://www.faqs.org/faqs/nordic-faq/part1_INTRODUCTION/section-7.html) or the 'ur' in "hurt" [2] (http://www.hadelandlag.org/1921/norseltrs.htm), as pronounced in a non-rhotic accent, like Received Pronunciation. The name of the letter is the same as the sound it makes. English pronunciation is divided into two main accent groups, the rhotic and the non-rhotic, depending on when the letter r (equivalent to Greek rho) is pronounced. ... Received Pronunciation (RP) is a form of pronunciation of the English language, usually defined as the educated spoken English of southeastern England. This is a prescriptivist point-of-view — it is quite possible for an intelligent, educated individual to use a non-standard dialect. ...

The origin of the letter is a ligature for the diphthong "oe" (the horizontal line of the "e" being written across the "o") that has become a letter in itself. In modern Danish, Faroese and Norwegian, the letter is a unique vowel (IPA [ø]), and neither a diphthong, a ligature, nor a variant of the letter "O". As one Norwegian tour guide put it, "It's not an 'O' with a slash, it's an 'Ø'!" In writing and typography, a ligature occurs where two or more letterforms are written or printed as a unit. ... In phonetics, a diphthong ( Greek δίφθογγος, diphthongos, literally with two sounds) is a vowel combination usually involving a quick but smooth movement from one vowel to another, often interpreted by listeners as a single vowel sound or phoneme. ... O is the fifteenth letter of the Latin alphabet. ... The letter E is the fifth letter in the Latin alphabet. ... The International Phonetic Alphabet is a phonetic alphabet used by linguists to accurately and uniquely represent each of the wide variety of sounds (phones or phonemes) the human vocal apparatus can produce. ... In phonetics, a diphthong ( Greek δίφθογγος, diphthongos, literally with two sounds) is a vowel combination usually involving a quick but smooth movement from one vowel to another, often interpreted by listeners as a single vowel sound or phoneme. ... In writing and typography, a ligature occurs where two or more letterforms are written or printed as a unit. ...

In the Turkish, Finnish, Swedish, Icelandic, and German, Estonian, and Hungarian alphabets, the letter "Ö" is the equivalent. Cyrillic alphabet has "Ө" as the equivalent letter, which are used in Kazakh, Mongolian, etc. Ö, or ö, is a glyph which represents either a letter from several extended Latin alphabets, the letter O with umlaut, or a letter O with diaeresis. ... The Cyrillic alphabet (or azbuka, from the old name of the first letters) is an alphabet used to write six natural Slavic languages (Belarusian, Bulgarian, Macedonian, Russian, Serbian, and Ukrainian) and many other languages of the former Soviet Union, Asia and Eastern Europe. ...

In Danish (and more conservative, Danish-influenced Norwegian) spelling, ø is a word all by itself meaning island.

The symbol "ø" is also used in the International Phonetic Alphabet to indicate the sound of the Danish and Norwegian letter, the close-mid front rounded vowel. The International Phonetic Alphabet is a phonetic alphabet used by linguists to accurately and uniquely represent each of the wide variety of sounds (phones or phonemes) the human vocal apparatus can produce. ... The close-mid front rounded vowel is a type of vowel sound, used in some spoken languages. ...

For computers, when using the ISO 8859-1 or Unicode sets, the codes for 'Ø' and 'ø' are respectively 216 and 248, or D8 and F8 in hexadecimal. On the Apple Macintosh operating system it can by typed by pressing the [Option] key then typing O or o. On Microsoft Windows it can by typed 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. The Unicode letter name is "Latin capital/small letter O with stroke". In HTML character entity references, required 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 depressing the Multi_key with a slash and then striking an o or O. The tower of a personal computer (specifically a Power Mac G5). ... ISO 8859-1, more formally cited as ISO/IEC 8859-1 or less formally as Latin-1, is part 1 of ISO/IEC 8859, a standard character encoding defined by ISO. It encodes what it refers to as Latin alphabet no. ... In computing, Unicode is the international standard whose goal is to provide the means to encode the text of every document people want to store in computers. ... In mathematics, hexadecimal or simply hex is a numeral system with a radix or base of 16 usually written using the symbols 0–9 and A–F or a–f. ... Macintosh, also known as Mac, is a family of personal computers manufactured by Apple Computer, Inc. ... Microsoft Windows is a range of closed source proprietary commercial operating environments for personal computers and servers. ... This is a disambiguation page — a navigational aid which lists other pages that might otherwise share the same title. ... Code page is the traditional IBM term used for a specific character encoding table: a mapping in which a sequence of bits, usually a single octet representing integer values 0 through 255, is associated with a specific character. ... In computing, Unicode is the international standard whose goal is to provide the means to encode the text of every document people want to store in computers. ... HTML has been in use since 1991 (note that the W3C international standard is now XHTML), but the first standardized version with a reasonably complete treatment of international characters was version 4. ... In computing, the X Window System (commonly X11 or X) is a windowing system for bitmap displays. ...

Not to be confused with

Ø is not to be confused with the number '0' (zero), which is sometimes written with a slash to differentiate it from the letter 'O' (this form is called the slashed zero). Once commonly used in this form by early computer models, recent computer technology has all but eliminated the need to use a slashed zero. But the symbol is still used in written Amateur radio callsign. Zero redirects here. ... O is the fifteenth letter of the Latin alphabet. ... The slashed zero looks just like a regular letter O or number 0 (zero), but it has a slash through it. ... Amateur radio, commonly called ham radio, is a hobby enjoyed by many people throughout the world (as of 2004 about 3 million worldwide, 60,000 in UK, 70,000 in Germany, 5,000 in Norway, 57,000 in Canada, and 700,000 in the USA). ...

The symbol "∅" (U+2205) is used in mathematics to refer to the empty set, following Bourbaki. Modern typesetting software used by mathematicians typically renders it in stylised form. For example, common TeX packages offer emptyset and varnothing, which respectively appear as: History Main article: History of mathematics In addition to recognizing how to count concrete objects, prehistoric peoples also recognized how to count abstract quantities, like time -- days, seasons, years. ... In mathematics, the empty set is the set with no elements. ... Nicolas Bourbaki is the pseudonym under which a group of mainly French 20th-century mathematicians wrote a series of books of exposition of modern advanced mathematics, beginning in 1935. ... The TeX mascot, by Duane Bibby TEX, written as TeX in plain text, is a typesetting system created by Donald Knuth. ...

"⌀" (U+2300) is used as the standard symbol for diameter, though the official symbol is slightly stylised (the stroke is often thinner at the bottom and thicker at the top, like the club or baton shape of the exclamation point; and extends further above the o portion). In German speaking countries it is also used as a symbol for average value: average in German is Durchschnitt, directly translated as cut-through. For the geometric term, see diameter. ... An exclamation mark (also exclamation point, and (rarely) mark of admiration) is a punctuation mark or, more pedantically, a tone mark. ... In mathematics, there are numerous methods for calculating the average or central tendency of a list of n numbers. ...

See also

• Å
• Æ
• Œ