Contents 1 In mathematics 2 As a year 3 As a name 4 As a noun 5 As a verb 6 Alternate Pronunciation; (zoh) 7 External Links Zero and 0 are used in many different contexts: In mathematics 0 (number) is a number, glyph, and numeral. (See the article on the number for a detailed history and other mathematical uses.) The zero function is the constant function whose value is zero, for every element in its domain. The slashed zero glyph used to distinguish the number '0' from the letter 'O' on character displays in mainframe and early personal computing A root of a function is also known as a zero of the function. As a year Year zero, used as the start of many calendars, for instance in numbering astronomical and Hindu years. Year Zero (political notion) - the Cambodian genocide and to the invasion of Iraq 2003. As a name In names, zero sometimes means "start" or "origin": Zero, bumpkin character in the Beetle Bailey comic strip Zero, canine companion of the title character in the Little Annie Rooney comic strip Zero, a major character in the novel Holes by Louis Sachar. Zero, Hershey's candy bar of caramel, peanut and almond nougat covered in white fudge Zero is an alternate name used by the 1980s Brisbane punk rock band Xero. Zero is a song by The Smashing Pumpkins Zero is the name of a video game character (See Mega Man). Zero is also the name of a video game magazine. Zero (cartoonist) - Brazilian cartoonist. Zero Mostel - Tony Award-winning stage actor. Count Zero is a character that names a cyberpunk novel by William Gibson. Ground Zero is the surface point in the vertical of the explosion of a nuclear bomb. This term has also been used figuratively for the area where the World Trade Center of Manhattan was located before the September 11 attacks. Mitsubishi Zero - The Mitsubishi A6M Japanese fighter aircraft used during the Second World War. Son Goku, a character from Dragon Ball, is known as "Zero" in a late 1980's dub of Dragon Ball. Zero Wing - a video game most notable for being the source of the "All your base are belong to us" meme. There are several works of literature named "Zero at the Bone", from a line in a poem by Emily Dickinson titled "A Narrow Fellow in the Grass". 0 is a god-like character in Greg Cox's Star Trek novel series The Q Continuum. Zero Milestone in Washington, D.C. Zero Kilometre Stone in Budapest, Hungary "Zero: The Biography of a Dangerous Idea", a book by Charles Seife. As a noun Zero (linguistics) - an element not realized in speech, as in a zero article. Zero day or 0day refers to software, media, or information that is obtained either prior to or on the day of the official release. Size Zero is a petite dress size for women. As a verb In computing, to zero (or zeroise or zeroize) a set of data means to set every bit in the data to zero (or off). Zero is a default digit, meaning none and initial value. This is usually said of small pieces of data, such as bits or words (especially in the construction "zero out"). to zero also means to erase, to discard all data from. This is often said of disks and directories, where "zeroing" need not involve actually writing zeroes throughout the area being zeroed. One may speak of something being "logically zeroed" rather than being "physically zeroed". In firearms, to zero a weapon means to adjust the iron sights or the telescopic sight so that it aims exactly where the bullet goes at a given distance. If the weapon was "zero-ed" at 100 yards, shooting at a target at 150 yards will require to aim higher, as requested by the science of ballistics. In measurement, to zero means to calibrate to a value of zero, as with a balance, weighing scale, or other measuring instrument. In this sense it is synonymous with the verb tare. Alternate Pronunciation; (zoh) The capital letter O (oh) sometimes replaces the number 0 (zero) as a one sylable alternative short cut when saying, as an example, "area code Four Oh Five" (405). In cases when the number zero must be clearly defined and a short cut may be appropriate, the alternate pronunciation is acceptable when saying, for example, "Part number Six Oh Three Zoh" (6O30), in which case, the letter O (oh) and the number 0 (zero) are not interchangeable. Zoh is a pronunciation, therefore no other spelling exists except zero. External Links Who invented the zero? This number-oriented article is a disambiguation page — a list of pages that otherwise might share the same title. If an article link referred you here, you might want to go back and fix it to point directly to the intended page. de:Null_(Begriffsklärung) it:Zero_(disambigua) ja:0_(曖昧さ回避) sv:Noll "0_%28disambiguation%29" Categories: Number disambiguations | Arabic words