Dictionary Definition
Noun
1 the cardinal number that is the sum of eight
and one [syn: 9,
IX, niner, Nina
from Carolina, ennead]
2 a team of professional baseball players who
play and travel together; "each club played six home games with
teams in its own division" [syn: baseball
club, ball club,
club]
User Contributed Dictionary
English
Etymology
From Middle English nine, from the Old English word niġon, from ProtoGermanic niwun, from the ProtoIndoEuropean root (e)newn.Pronunciation
 /ˈnaɪn/, /"naIn/
 Rhymes: aɪn
Cardinal number
nine The cardinal
number occurring after eight and before ten. Ordinal: ninth.

 A cat has nine lives.

 Describing a set or group with nine components.
Translations
cardinal number
 Albanian: nëntë
 trreq Amharic: (numeral: ፱)
 Arabic: (numeral: )
 Aramaic:
 Assamese: ন (na)
 Basque: bederatzi
 Bengali: নয (nay) (numeral: ৯)
 Bosnian: devet
 Breton: nav
 trreq Burmese: (numeral: ၉)
 Catalan: nou
 Cherokee: ᏐᏁᎳ (sonela)
 Chinese:
 Cornish: naw
 Corsican: novi
 Crimean Tatar: doquz
 Croatian: devet
 Danish: ni
 Dena'ina: łq'ich'idi
 Dutch: negen
 Erzya: вейксе (vejkse)
 Esperanto: naŭ
 Estonian: üheksa
 Fijian: ciwa
 Finnish: yhdeksän (^)
 French: neuf
 Garífuna: nefu
 Georgian: ცხრა (tsxra)
 German: neun
 Greek: εννέα (ennéa), εννιά (enniá)
 Guaraní: porundy
 Gujarati: નવ (nav) (numeral: ૯)
 Hawaiian: iwa
 Hebrew: תֵּשַׁע (téiša) (used in counting), תִּשְׁעָה (tish'a)
 Hindi: नौ (nau) (numeral: ९)
 Hungarian: kilenc
 Icelandic: níu
 Ido: non
 Indonesian: sembilan
 Interlingua: nove
 Irish: naoi
 Italian: nove
 Japanese: 九 (く, ku; きゅう, kyū)
 Kalaallisut: qulingiluat
 trreq Kannada: (numeral: ೯)
 Karelian: yhekšän
 Khmer: (pram buon) (numeral: )
 Komi: (ökmys)
 Korean: 아홉 (ahop), 구 (gu)
 Kurdish:
 trreq Lao: (numeral: )
 Latin: novem
 Latvian: deviņi , deviņas
 Lithuanian: devyni, devynios
 Livonian: īdõks (old spelling: ȳdõks)
 Lojban: so
 trreq Malayalam: (numeral: ൯)
 Malgasy: sivy
 Maltese: disgħa
 Manchu: uyun
 Manx: nuy
 Maori: iwa
 Mari: индеше (indeše)
 Marshallese: ratimjuon
 Mongolian: ес (numeral: ᠙)
 Nahuatl: chicuei
 Norwegian: ni
 Novial: nin
 Occitan: nòu
 Old English: nigon
 Oriya: ଦଶ (dash) (numeral: ୯)
 Persian: (noh) (numeral: )
 Polish: dziewięć
 Portuguese: nove
 Punjabi: ਨੌਂ () (numeral: ੯)
 Quechua: jisq'un
 Rapanui: ka iva
 Romanian: nouă
 Russian: девять
 Sanskrit: नवम् (návam)
 Sardinian (Campidanese): noi
 Scottish Gaelic: naoi
 Serbian:
 Sinhala: නවය (navaya)
 Slovak: deväť
 Slovene: devet
 Spanish: nueve
 Swahili: tisa
 Swedish: nio (^)
 Tagalog: siyam
 trreq Tamil: (numeral: ௯)
 Tatar: тугыз, tuğız
 Telugu: తొనిమిది, తొమ్మిది (numeral: ౯)
 Thai: (kào) (numeral: )
 trreq Tibetan: (numeral: ༩)
 Tok Pisin: nainpela
 Turkish: dokuz
 Tzutujil: waxaqi
 Veps: ühesa
 Vietnamese: chín
 Volapük: zül
 Vorlin: nin
 Votic: ühesää / үхесээ
 Võro: ütessä
 Walloon: ût
 Warlpiri:
 Welsh: naw
 West Frisian: njoggen
 Zarma: yegga
set or group with nine components
 Lithuanian: devyneri, devynerios
Noun
 The digit or figure 9.
 (playing cards) Card with 9 pips.
Translations
the digit or figure 9
 Danish: nital
 Finnish: yhdeksikkö, ysi (slang)
 Hungarian: kilences
 Lithuanian: devynetas
 Russian: девятка
card with 9 pips
 Danish: nier
 Finnish: yhdeksikkö, ysi (slang)
 Russian: девятка
 ttbc Arabic:
 ttbc Bosnian: devetka
 ttbc Croatian: devetka
 ttbc French: neuf
 ttbc German: Neun
 ttbc Italian: nove
 ttbc Persian: (noh)
 ttbc Polish: dziewiątka (1,2)
 ttbc Portuguese: nove (1,2)
 ttbc Romanian: nouar (1); nouă (2)
 ttbc Serbian:
 ttbc Swedish: nia
Symbol
 American Sign Language: * Amharic numerals: ፱
 Arabic numerals: 9
 Armenian numerals: Թ
 Bengali numerals: ৯
 Chinese numerals: 玖, 九
 Eastern Arabic numerals:
 Greek numerals: θʹ
 Gujarati numerals: ૯
 Gurmukhi numerals: ੯
 Hindi numerals: ९
 Kannada numerals: ೯
 Khmer numerals: ៩
 Lao numerals: ໙
 Limbu numerals: ᥏
 Malayalam numerals: ൯
 Mongolian numerals: ᠙
 Myanmar numerals: ၉
 Oriya numerals: ୯
 Roman numerals: IX
 Tamil numerals: ௯
 Telugu numerals: ౯
 Thai numerals: ๙
 Tibetan numerals: ༩
 defn English
Turkish
Noun
nineExtensive Definition
In mathematics
Nine is a composite number, its proper divisors being 1 and 3. It is 3 times 3 and hence the third square number. 9 is a Motzkin number. It is the first composite lucky number.9 is the second nonunitary square prime (32). It
has a unique aliquot sum
4 which is itself
a square prime. 9 is the only square prime with an aliquot sum of
the same form. The aliquot
sequence of 9 has 5 members (9,4,3,1,0) this number being the
second composite member of the 3aliquot tree.
There are nine Heegner
numbers.
Since 9 = 3^, 9 is an exponential
factorial.
8 and 9 form a RuthAaron
pair under the second definition that counts repeated prime
factors as often as they occur.
A polygon with nine sides is
called an enneagon
(technically) or nonagon (in common usage). A group of nine of
anything is called an ennead.
In base
10 a number is evenly divisible by nine if and
only if its digital root
is 9. That is, if you multiply nine by any whole number (except
zero), and repeatedly add the digits of the answer until it's just
one digit, you will end up with nine:
 2 × 9 = 18 (1 + 8 = 9)
 3 × 9 = 27 (2 + 7 = 9)
 9 × 9 = 81 (8 + 1 = 9)
 121 × 9 = 1089 (1 + 0 + 8 + 9 = 18; 1 + 8 = 9)
 234 × 9 = 2106 (2 + 1 + 0 + 6 = 9)
 578329 × 9 = 5204961 (5 + 2 + 0 + 4 + 9 + 6 + 1 = 27 (2 + 7 = 9))
 482729235601 × 9 = 4344563120409 (4 + 3 + 4 + 4 + 5 + 6 + 3 + 1 + 2 + 0 + 4 + 0 + 9 = 45 (4 + 5 = 9))
 (Exception) 0 x 9 = 0 (0 is not equal to 9)(though it can be considered 1 in the tens place and 10 in the ones place(101=9))
The only other number with this property is
three.
In base
N, the divisors of
N − 1 have this property. Another consequence of
9 being 10 − 1, is that it is also a Kaprekar
number. The difference between a base10 positive integer and
the sum of its digits is a whole multiple of nine. Examples:
 The sum of the digits of 41 is 5, and 415 = 36. The digital root of 36 is 3+6 = 9, which, as explained above, demonstrates that it is evenly divisible by nine.
 The sum of the digits of 35967930 is 3+5+9+6+7+9+3+0 = 42, and 3596793042 = 35967888. The digital root of 35967888 is 3+5+9+6+7+8+8+8 = 54, 5+4 = 9.
Subtracting two base10 positive integers that
are transpositions of each other yields a number that is a whole
multiple of nine. Some examples:
 4114 = 27. The digital root of 27 is 2+7 = 9.
 3695793035967930 = 990000, which is obviously a multiple of nine.
 9976533035967930 = 63797400; 6+3+7+9+7+4+0+0 = 36, 3+6 = 9.
 9976533003356799 = 96408531; 9+6+4+0+8+5+3+1 = 36.
 3596793003356799 = 32611131; 3+2+6+1+1+1+3+1 = 18, 1+8 = 9.
Casting
out nines is a quick way of testing the calculations of sums,
differences, products, and quotients of integers, known as long ago
as the 12th Century.
Every prime in a Cunningham
chain of the first kind with a length of 4 or greater is
congruent to 9 mod 10 (the only exception being the chain 2, 5, 11,
23, 47).
Six recurring nines appear in the decimal places
762 through 767 of pi. This
is known as the Feynman
point (see also MathWorld).
If an odd perfect
number is of the form 36k + 9, it has at least nine distinct
prime factors.
Nine is the binary complement of number six:
9 = 1001 6 = 0110
In numeral systems
List of basic calculations
Evolution of the glyph
According to Georges Ifra, the origin of the 9
integers can be attributed to the ancient Indian civilization, and
was adopted by subsequent civilizations in conjunction with the
0.
In the beginning, various Indians wrote 9 similar
to the modern closing question mark without the bottom dot. The
Kshtrapa, Andhra and Gupta started curving the bottom vertical line
coming up with a 3lookalike. The Nagari
continued the bottom stroke to make a circle and enclose the
3lookalike, in much the same way that the @ character encircles a
lowercase a. As time went on, the enclosing circle became bigger
and its line continued beyond the circle downwards, as the
3lookalike became smaller. Soon, all that was left of the
3lookalike was a squiggle. The Arabs simply connected that
squiggle to the downward stroke at the middle and subsequent
European change was purely cosmetic.
While the shape of the 9 character has an
ascender in most modern
typefaces, in typefaces
with text figures
the character usually has a descender, as, for example, in
 The Saros number of the solar eclipse series which began on 2568 February 6 and ended on 1252 April 4. The duration of Saros series 9 was 1316.2 years, and it contained 74 solar eclipses.
 The Saros number of the lunar eclipse series which began on 2501 June 26 and ended on 1149 September 16. The duration of Saros series 9 was 1352.2 years, and it contained 76 lunar eclipses.
Probability
In probability, the nine is a logarithmic measure of probability of an event, defined as the negative of the base10 logarithm of the probability of the event's complement. For example, an event that is 99% likely to occur has an unlikelihood of 1% or 0.01, which amounts to −log10 0.01 = 2 nines of probability. Zero probability gives zero nines (−log10 1 = 0). The purity of chemicals (see Nine (purity)), the effectivity of processes, the availability of systems etc. can similarly be expressed in nines. For example, "five nines" (99.999%) availability implies a total downtime of no more than five minutes per year. This measure can be confusing, a fact which is discussed in the myth of the nines.Physiology
A human pregnancy normally lasts nine months.In religion
 Important Buddhist rituals usually involve nine monks.
 The first nine days of the Hebrew month of Av are collectively known as "The Nine Days" (Tisha HaYamim), and are a period of semimourning leading up to Tisha B'Av, the ninth day of Av on which both Temples in Jerusalem were destroyed.
 Nine, as the highest singledigit number (in base ten), symbolizes completeness in the Bahá'í Faith. In addition, the word Bahá' in the Abjad notation has a value of 9, and a 9pointed star is used to symbolize the religion.
 Nine is a significant number in Norse Mythology. Odin hung himself on an ash tree for nine days to learn the runes.
 Jesus healed ten lepers; nine did not even thank him.
 Anton LaVey applied the number to Satan.
As lucky or unlucky number, Chinese culture
Nine (九 pinyin jiǔ) is considered a good number in Chinese culture because it sounds the same as the word "longlasting" (久 pinyin jiǔ). The Japanese consider 9 to be unlucky, however, because it sounds similar to the Japanese word for "pain" or "distress" (苦 kunrei ku). The fear of the number nine is enneaphobia.Nine is strongly associated with the Chinese
dragon, a symbol of magic and power. There are nine forms of
the dragon, it is described in terms of nine attributes, and it has
nine children It has 9×13 scales, 9×9 being
yang
(masculine, or bad influence) and 9×4 being yin
(feminine, or good influence). The dragon often symbolizes the
Emperor,
and the number nine can be found in many ornaments in the Forbidden
City. The circular altar platform (Earthly Mount) of the
Temple of
Heaven has one circular marble plate in the center, surrounded
by a ring of nine plates, then by a ring of 18 plates, and so on,
for a total of nine rings, with the outermost having
81=9×9 plates.
In music
 There is a rapper named Tech N9ne whose name stands for "Tech Nine" because 9 is the number of completion
 In music theory a ninth is the ninth note of a musical scale or the interval between the first note and the ninth. A ninth chord is a chord with a ninth.
 In classical music the curse of the ninth refers to the superstition that a composer who writes a ninth symphony will die soon. Beethoven, who left his Tenth Symphony unfinished, is regarded by the superstition as the first victim of the curse.
 Bands with the number nine in their name include Nine, Stroke 9, Nine Days, Nine Inch Nails and Alice Nine.
 The Beatles released a song called "Revolution 9" which appears on The White Album (more properly known as The Beatles); its principal vocal feature is a voice repeating, "Number nine...number nine...number nine..." John Lennon, the primary composer of "Revolution 9", also released a solo recording entitled "#9 Dream".
 "Love Potion No. 9 originally performed by The Clovers in 1955. Love Potion No. 9 was a 1992 movie starring Sandra Bullock and Tate Donovan.
 The first single of Leedsbased band ¡Forward, Russia! was called Nine and was released in April 2005. The title did not carry any symbolism, but followed the then "tradition" of the band for naming their songs in the order in which they were written.
 Composer Maury Yeston adapted Federico Fellini's 8½ for Broadway as the musical Nine, which won several Tony Awards in 1982, and was successfully revived in 2003 starring Antonio Banderas.
 9 is also the name of various albums, including 9 by Mercyful Fate, released in 1999, and 9 by Public Image Limited. Fairport Convention also released an album with the number for a title. Irish singer/songwriter Damien Rice released an album called 9 in November 2006.
 In urban culture, 'nine' is a slang word for a 9mm pistol or homicide, the latter from the Illinois Criminal Code for homicide.
 In hiphop, the rapper Nine, who got his big break in late 1993 as a featured guest on First Funkmaster Flex and the Ghetto Celebs, released 2 albums (Nine Livez in 1995 and Cloud Nine in 1996) and is now making a comeback. http://www.myspace.com/nineix
 Dublin poppunk band Nine IX Lives formed in 2005 and use 'IX' in their logo.
In sport
 Nine ball is the standard professional pocket billiards variant played in the United States.
 In association football (soccer) the centreforward/striker traditionally (since at least the fifties) wears the number 9 shirt. The number has been worn by a great number of famous centreforwards and strikers including, but not limited to, Ronaldo, Mia Hamm, Ally McCoist, Alan Shearer, Hernán Crespo, Fernando Torres and Samuel Eto'o.
 The car number of the 1988 NASCAR Nextel Cup championshipwinning team, when Bill Elliott won the title. He used this number again from 2001 to 2003. Kasey Kahne has driven the 9 car since 2004.
 In baseball, nine represents the right fielder's position.
 The retired uniform numbers of former baseball players Ted Williams and Roger Maris. Reggie Jackson also wore 9 with the Oakland A's for nine years and is now retired.
 In ice hockey the number 9 is one of the most prestigious sweater numbers, having been worn by legends like Maurice Richard, Bobby Hull,Gordie Howe, and Mike Modano. It was also worn, doubled as 99, by the great Wayne Gretzky.
 The San Francisco 49ers are sometimes referred to as the "niners".
 The most notable NFL quarterbacks to ever wear the number 9 are Drew Brees of the New Orleans Saints, Carson Palmer of the Cincinnati Bengals, Tony Romo of the Dallas Cowboys and Steve McNair of the Baltimore Ravens.
 The number worn by current NBA player Tony Parker of the San Antonio Spurs, MVP of the 2007 NBA Finals.
 The number worn by Roy Hobbs in the movie The Natural.
 In rugby, the number generally worn by the scrum half.
 The number worn by Rashard Lewis of the Orlando Magic.
 The number worn by both Michael Jordan and Dwyane Wade in the U.S. Olympics Team.
 Number worn by Lisa Leslie currently on the Los Angeles Sparks.
In technology
 ISO 9 is the ISO's standard for the transliteration of Cyrillic characters into Latin characters
 In the Rich Text Format specification, 9 is the language code for the English language. All codes for regional variants of English are congruent to 9 mod 256.
 In computer system administration, uptime, a measure of the time a computer system has been up and running, is sometimes measured in "nines"—that is, the number of "9" digits in the percentage of time the computer is normally running. For example, "five nines" means 99.999% reliability, which translates to a total downtime of no longer than five minutes per year.
Nine and the circle
The Enneagram is one system of knowledge which shows the correspondence between the 9 integers and the circle. The 360 degrees of the circle, which can be trace back to the Rig Veda of ancient India, can also be seen to speak of the 9, via theosophical addition (3 + 6 + 0 = 9)http://www.quantumyoga.org/theosophical%20addition.html. [2]In other fields
 Nine is the highest singledigit number in the decimal system.
 In the NATO phonetic alphabet, the digit 9 is called "Novenine".
 Channel 9, an Australian freetoair television station
 Nine judges sit on the United States Supreme Court.
 The word "K9" pronounces the same as canine and is used in many U.S. police departments to denote the unit working with police dog.
 The ordinal adjective is ninth.
 There are nine circles of Hell in Dante's "Divine Comedy".
 Stanines are measured on a scale of 1 to 9.
 The name of the area called Kowloon in Hong Kong literally means: nine dragons.
 Someone dressed "to the nines" is dressed up as much as they can be.
 Nine Lives Cat Food got its name from the legend that a cat has nine lives.
 Nine rank system
 The Nine Chapters on the Mathematical Art
 Nine Worthies
 9: The Last Resort was a 1995 computer game.
 Seven of Nine, fictional character from the Star Trek universe
 Magic: The Gathering has a set of nine rare cards, widely regarded as overpowered, known as the Power Nine.
 Nine West is a popular brand for clothing.
 The number of hostages in the TV show The Nine
 Ninth Avenue is a major avenue in Manhattan.
 Nine Unknown Men are, in occult legend, the custodians of the sciences of the world since ancient times.
 The 9, a show on the Internet, hosted by Maria Sansone. The 9
 The Nines is a film written and directed by John August, starring Ryan Reynolds, Hope Davis and Melissa McCarthy. It premiered at the 2007 Sundance Film Festival, and is now out on DVD.
 In the game of Craps, 9 is known as the center field because it is in the middle of the seven numbers on the field bet.
 In Middle Earth, there are nine rings of power given to men, and consequently, nine ringwraiths.
 "A cato'ninetails suggests perfect punishment and atonement." Robert Ripley.
 Wally Cleaver's locker number was #9.
 The Nine Bright Shiners, characters in Garth Nix's Old Kingdom trilogy. The Nine Bright Shiners was a 1930s book of poems by Anne Ridler and a 1988 fiction book by Anthea Fraser; the name derives from "a very curious old semipagan, semiChristian" song.
 "Nine" is a song title on the Neurosis album Given to the Rising.
 Many mathematical magic tricks have a connection to the number nine, that because every multiplication of nine adds up to nine, any number minus the sum of all digits becomes a multiplication of nine, and any three digit number minus the same number in reverse becomes a multiplication of nine
 Nine was the client number of Eliot Spitzer at The Emperor's Club.
 The character Cirno from the Touhou series is often called "nine," "⑨," "circlenine," or "nineball," because in the game manual for "Phantasmagoria of Flower View," she was labeled .
References
nine in Arabic: 9 (عدد)
nine in Official Aramaic (700300 BCE): 9
(ܡܢܝܢܐ)
nine in Guarani: Porundy
nine in Catalan: Nombre nou
nine in Chuvash: 9 (хисеп)
nine in Czech: 9 (číslo)
nine in Corsican: 9 (numeru)
nine in Danish: 9 (tal)
nine in Pennsylvania German: Nein
nine in German: Neun
nine in Erzya: 9 (вейксэ)
nine in Spanish: Nueve
nine in Esperanto: Naŭ
nine in Basque: Bederatzi
nine in Persian: ۹ (عدد)
nine in French: 9 (nombre)
nine in Gan Chinese: 9
nine in Korean: 9
nine in Igbo: Itolu
nine in Indonesian: 9 (angka)
nine in Interlingua (International Auxiliary
Language Association): 9 (numero)
nine in Xhosa: Ithoba
nine in Icelandic: Níu
nine in Italian: 9 (numero)
nine in Hebrew: 9 (מספר)
nine in Kinyarwanda: Icyenda
nine in Haitian: 9 (nonm)
nine in Kurdish: Neh
nine in Latin: Novem
nine in Luxembourgish: Néng
nine in Lithuanian: 9 (skaičius)
nine in Lombard: Nümar 9
nine in Hungarian: 9 (szám)
nah:Chiucnāhui
nine in Dutch: 9 (getal)
nine in Japanese: 9
nine in Neapolitan: Nove
nine in Norwegian: 9 (tall)
nine in Norwegian Nynorsk: Talet 9
nine in Polish: 9 (liczba)
nine in Portuguese: Nove
nine in Quechua: Isqun
nine in Russian: 9 (число)
nine in Sicilian: Novi
nine in Simple English: Nine
nine in Slovenian: 9 (število)
nine in Serbian: 9 (број)
nine in Finnish: 9 (luku)
nine in Swedish: 9 (tal)
nine in Tagalog: 9 (bilang)
nine in Thai: 9
nine in Vietnamese: 9 (số)
nine in Turkish: 9 (sayı)
nine in Ukrainian: 9 (число)
nine in Vlaams: 9 (getal)
nine in Yiddish: 9 (נומער)
nine in Contenese: 9
nine in Chinese: 9