X is the 24th letter of the English alphabet. X may also refer to:

Art, entertainment, and media

Fictional entities

* X (Dark Horse Comics), a character and its namesake series * X (''Mega Man''), protagonist of the ''Mega Man X'' video game series * X (''The X-Files''), a television series character * Radio X, the fictional radio station broadcasting the ''Grand Theft Auto: San Andreas'' soundtrack * X, a symbol used on treasure maps in fiction to show the location of the hidden treasure * X Parasite, an element of the 2002 game ''

Metroid Fusion is a 2002 action-adventure game developed and published by Nintendo for the Game Boy Advance. It was developed by Nintendo Research & Development 1, which had developed the previous ''Metroid'' game, ''Super Metroid'' (1994). ''Fusion'' is par ...

Film

* ''X'' (1963 film), subtitled ''The Man with the X-Ray Eyes'', an American science fiction film * ''X'' (1986 film), a Norwegian drama directed by Oddvar Einarson * ''X'' (1996 film), an anime film directed by Rintaro, based on the ''X'' manga by CLAMP * ''X'' (2022 film), an American horror film directed by Ti West * ''

X the Unknown ''X the Unknown'' is a 1956 British science fiction horror film directed by Leslie Norman and starring Dean Jagger, Leo McKern and Edward Chapman. It was made by the Hammer Film Productions company and written by Jimmy Sangster, at the sug ...

'', a 1956 British science fiction horror film * ''X'', alternate title for ''Malcolm X'' (1992 film), by Spike Lee * '' X: Night of Vengeance'', a 2011 thriller by Australian director Jon Hewitt * '' X: Past Is Present'', a 2015 Indian anthology film *

X rating An X rating is a film rating that indicates that the film contains content that is considered to be suitable only for adults. Films with an X rating may have scenes of graphic violence or explicit sexual acts that may be disturbing or offensive ...

, a designation for adult-only films

Television

* ''

Kamen Rider X is a Japanese tokusatsu superhero television series. It was broadcast in 1974 on the Mainichi Broadcasting System and NET, now known as TV Asahi. It is the third entry in the Kamen Rider Series of tokusatsu shows. It starred Ryo Hayami in the ...

'', a Japanese series in the ''Kamen Rider'' franchise * ''

Ultraman X is a Japanese television series produced by Tsuburaya Productions. It is the 19th entry (28th overall) in the ''Ultra Series'' and is currently the last series to air as part of the ''Ultraman Retsuden, New Ultraman Retsuden'' programming block on ...

'', a 2015 Japanese ''tokusatsu'' series * * ''X'' (TV series), a Japanese anime series based on the ''X'' manga by CLAMP * X, the production code for the 1966 ''Doctor Who'' serial '' The Ark''

Video games

* ''X'' (1992 video game) a 3D game for the Nintendo Game Boy console * ''X'' (game series), a science fiction space simulator series by Egosoft *

X (Xbox show) X (sometimes called the X0 events) was an annually held trade show hosted by Microsoft Gaming, showcasing its Xbox Xbox is a video gaming brand that consists of four main home video game console lines, as well as application software, appl ...

, an annual trade show hosted by Microsoft

Literature

* ''X'' (Cage book), by avant garde composer John Cage * ''X'' (magazine), a quarterly review of literature and the arts * ''X'' (manga), a 1992 Japanese manga by CLAMP * ''X'' (Grafton novel), 2015, by Sue Grafton *

X (young adult novel) ''X: A Novel'' is a young adult novel by Ilyasah Shabazz and Kekla Magoon, published January 6, 2015 by Candlewick Press. Reception ''X'' is a Junior Library Guild selection. The book received starred review from ''Publishers Weekly, Kirk ...

, 2015, by Ilyasah Shabazz and Kekla Magoon * '' X: A Fabulous Child's Story'', a 1972 short story and 1978 picture book by Lois Gould * ''X: Or, Betty Shabazz v. The Nation'', a 2017 play by

Marcus Gardley Marcus Gardley (born 1977/1978) is an American poet, playwright and screenwriter from West Oakland, California. He is an ensemble member playwright at Victory Gardens Theater in Chicago and an assistant professor of Theater and Performance Studie ...

* ''The 'X' Documents'', a 1974 collection of British reports on German opposition to Hitler based on meetings with

Carl Friedrich Goerdeler Carl Friedrich Goerdeler (; 31 July 1884 – 2 February 1945) was a German conservative politician, monarchist, executive, economist, civil servant and opponent of the Nazi regime. He opposed anti-Jewish policies while he held office and was op ...

* '' 'X' Stands for Unknown'', a 1984 collection of science essays by Isaac Asimov

Music

Bands

X (American band) X was an American punk rock band formed in Los Angeles. The original members are vocalist Exene Cervenka, vocalist-bassist John Doe (musician), John Doe, guitarist Billy Zoom and drummer D. J. Bonebrake. The band released seven studio albums fr ...

, a punk band *

X (Australian band) X is an Australian punk rock band, formed in Sydney, New South Wales in 1977 founded by Ian Rilen, Steve Lucas, Ian Krahe and Steve Cafiero. The group was formed simultaneously to, and with no knowledge of, the Los Angeles group of the same n ...

, a punk band *

X Japan is a Japanese Rock music, rock band from Chiba Prefecture, Chiba, formed in 1982 by drummer and pianist Yoshiki (musician), Yoshiki and lead vocalist Toshi (musician), Toshi. Starting as a predominantly power metal, power/speed metal band with ...

, Japanese metal band, originally named X from 1982–1992 * X:IN, multinational girl group based in South Korea

Albums

* ''X'' (Agnez Mo album), 2017 * ''X'' (Klaus Schulze album), 1978 * ''X'' (Gnags album), 1983 * ''X'' (INXS album), 1990 * ''X'' (K-Ci & JoJo album), 2000 * ''X'' (Def Leppard album), 2002 * ''X'' (Anna Vissi album), 2002 * ''X'' (Kristeen Young album), 2004 * ''

X the album The X series is a collection of compilation albums and DVDs released by BEC Recordings promoting Christian rock music from bands signed to Capitol Christian Music Group, specifically Tooth & Nail Records, Solid State Records, Gotee Records, For ...

'', a Christian compilation album series starting in 2004 * ''X'' (Liberty X album), 2005 * ''X'' (Intocable album), 2005 * ''X'' (Fourplay album), 2006 * ''X'' (Kylie Minogue album), 2007 * ''X'' (Trace Adkins album), 2008 * ''X'' (Spock's Beard album), 2010 * ''X'' (Royal Hunt album), 2010 * ''X'' (Roll Deep album), 2012 * ''X'' (The 69 Eyes album), 2012 * ''X'' (Chris Brown album), 2014 * ''X'' (Ed Sheeran album) (read as "Multiply"), 2014 * ''X'' (The Driver Era album), 2019 * ''X'' (Ken Carson album), 2022 * ''X'' (Stam1na album), 2023 * ''X'' (Lucki mixtape), 2015 * ''X'' (mixtape), by pH-1, 2020 * X, a Philippine hip-hop album by

Ex Battalion Ex Battalion (mononymously referred to as ExB; also stylized in all caps) is a Filipino hip hop collective from Muntinlupa City, Philippines, primarily known for their hit single "Hayaan Mo Sila" that went #2 on the Billboard Philippine Top 2 ...

* X (Nonpoint album), 2018 * '' X: The Godless Void and Other Stories'', 2020, by ...And You Will Know Us by the Trail of Dead * ''Ten'' (Sault album), (also styled ''X'') 2022

Operas

* '' X, The Life and Times of Malcolm X'', 1986

Songs

* "X", a song by

Miss Li Linda Therese Karlsson (born 21 July 1982), known professionally as Miss Li, is a Swedish singer-songwriter. Since beginning her career in the early-2000s, she has released a total of eight studio albums, and several of her songs have been featu ...

* "X" (21 Savage and Metro Boomin song) * "X" (Chris Brown song) * "X" (Jonas Brothers and Karol G song) * "X" (Liberty X song) * "X" (Nicky Jam and J Balvin song) * "X" (Poppy song) * "X" (Xzibit song) * "X" (Arca song) * "X", a song from the album '' The Circle'' by B'z * "X", a song from the album '' Neysluvara'' by Hatari * "X", a song from the album '' Undeniable'' by Hellyeah * "X", a song from the album ''

Pain Is Love ''Pain Is Love'' is the third studio album by American rapper Ja Rule, released on October 2, 2001 under Murder Inc. Records and distributed by Def Jam Recordings. The entirety of the album (excluding skits) was executive produced by Murder Inc. ...

'' by Ja Rule featuring Missy Elliott and Tweet * "X", a song from the album ''

Future History A future history, imaginary history or anticipatory history is a fictional conjecture of the future used by authors of science fiction and other speculative fiction to construct a common background for stories. Sometimes the author publishes a t ...

'' by Jason Derulo * "X", a song from the album '' Luv Is Rage 2'' by Lil Uzi Vert * "X", a song from the album ''

The Magic Position ''The Magic Position'' is the third studio album by English singer-songwriter Patrick Wolf. It was released on 26 February 2007. The album features collaborations with Marianne Faithfull and Edward Larrikin of Larrikin Love as well as backi ...

'' by Patrick Wolf * "X", a song from the album ''

Angels & Demons ''Angels & Demons'' is a 2000 bestselling mystery- thriller novel written by American author Dan Brown and published by Pocket Books and then by Corgi Books. The novel introduces the character Robert Langdon, who recurs as the protagonist of ...

'' by Peter Andre * "X", a song from the album ''

Black Panther A black panther is the Melanism, melanistic colour variant of the leopard (''Panthera pardus'') and the jaguar (''Panthera onca''). Black panthers of both species have excess black pigments, but their typical Rosette (zoology), rosettes are al ...

'' by ScHoolboy Q, 2 Chainz, Saudi, and Kendrick Lamar * "X", a song from the album '' X'' by Stam1na * "X", a song from the album ''

Toxicity Toxicity is the degree to which a chemical substance or a particular mixture of substances can damage an organism. Toxicity can refer to the effect on a whole organism, such as an animal, bacteria, bacterium, or plant, as well as the effect o ...

'' by System of a Down * "X", a song from the album '' Blue Blood'' by X Japan * "X", a song from the album '' In the Court of the Dragon'' by Trivium * "X", a song from the album X by Ken Carson

Stations

WXNY-FM WXNY-FM (96.3 FM, ''La X 96.3'') is a commercial radio station that broadcasts an Hispanic rhythmic format. It is licensed to New York, New York, and serves the New York metropolitan area. WXNY is owned by Uforia Audio Network and its transmi ...

, known as "La X 96.3", a Spanish radio station in New York City *

XETRA-FM XETRA-FM (91.1 MHz), branded as 91X, and sometimes identified as XTRA-FM, is an English-language radio station licensed to Tijuana, Baja California, Mexico. It airs an alternative rock radio format. The studios and offices are on Cornerstone Cou ...

/91.1 MHz, licensed to

Tijuana Tijuana is the most populous city of the Mexican state of Baja California, located on the northwestern Pacific Coast of Mexico. Tijuana is the municipal seat of the Tijuana Municipality, the hub of the Tijuana metropolitan area and the most popu ...

, using the moniker "91X". * Radio X, a British radio station which grew out of the former XFM

Roller coasters

* X2 (roller coaster), at Six Flags Magic Mountain, formerly known as X * The Walking Dead: The Ride in Thorpe Park, England, formerly known as X

Companies

X Development X Development LLC, doing business as X (formerly Google X), is an American semi-secret research and development facility and organization founded by Google in January 2010. X has its headquarters about a mile and a half from Google's corporate ...

, Google's in-house incubator established in 2010 * X Corp., the parent company of the social network X * X.com (bank), the predecessor to PayPal * X, the stock symbol for

United States Steel Corporation The United States Steel Corporation is an American steel company based in Pittsburgh, Pennsylvania. It maintains production facilities at several additional locations in the U.S. and Central Europe. The company produces and sells steel products, ...

Other organizations

* X (demo party), a Dutch demoscene party which started in 1995 *

Organization X The Organization ''X'' (; commonly referred to simply as ''X'' (" Chi" in Greek), and members as Chites (Χίτες)) was a paramilitary right-wing anti-communist royalist organization set up in 1941 during the Axis occupation of Greece. Initia ...

, a resistance organization active during the Axis occupation of Greece and the Greek Civil War *

X University Toronto Metropolitan University (TMU, or Toronto Met), formerly Ryerson University, is a public research university located in Toronto, Canada. The university's core campus is situated within the Garden District in downtown Toronto, although i ...

, informal interim name of Toronto Metropolitan University, formerly Ryerson University * x:talk, London-based cooperative network project to support migrant sex workers

Language script and phonetic

* X, a typographical approximation the Greek letter

chi __NOTOC__ Chi may refer to: __NOTOC__ Greek *Chi (letter) (Χ or χ), the twenty-second letter of the Greek alphabet Chinese * ''Chi'' (length) (尺), a traditional unit of length, about ⅓ meter *Chi (mythology) (螭), a dragon * Chi (surname) ...

(Χ) *

Kha (Cyrillic) Kha, Khe, Xe or Ha (Х х; italics: ) is a letter of the Cyrillic script. It Homoglyph, looks the same as the X, Latin letter X (X x ''X x''), in both uppercase and lowercase, both roman and italic forms, and was derived f ...

, a letter of the Cyrillic script * x, used in the International Phonetic Alphabet for the

voiceless velar fricative The voiceless velar fricative is a type of consonantal sound used in some spoken languages. It was part of the consonant inventory of Old English and can still be found in some dialects of English, most notably in Scottish English, e.g. in ''lo ...

* , used in the International Phonetic Alphabet for the

voiceless uvular fricative The voiceless uvular fricative is a type of consonantal sound that is used in some spoken languages. The symbol in the International Phonetic Alphabet that represents this sound is , the Greek chi. The sound is represented by (ex with underdo ...

People

In arts and entertainment

Director X Julien Christian Lutz (born October 31, 1975), known professionally as Director X, is a Canadian music video director. Having trained under Hype Williams, Lutz has been credited for directing over a hundred music videos spanning various genres si ...

(born 1975), Canadian music video director, also known as X and Little X * Márcia X (1959–2005), Brazilian performer and visual artist * Princess X (musician), former stage name of musician Liza Fox (active since 2010) *

DMX (rapper) Earl Simmons (December 18, 1970 – April 9, 2021), known professionally as DMX, was an American rapper and actor. The recipient of various accolades, he won an American Music Award, a ''Billboard'' Music Award, and was nominated for six Gramm ...

(1970–2021), American rapper commonly referred to as "X" *

Shaun Ryder Shaun William George Ryder (born 23 August 1962) is an English singer, songwriter and poet. As lead singer of Happy Mondays, he was a leading figure in the Madchester cultural scene during the late 1980s and early 1990s. In 1993, he formed Bl ...

(born 1962), English musician also known as X *

Terminator X Norman Rogers (born August 25, 1966), known professionally as Terminator X, is an American DJ best known for his work with hip hop group Public Enemy, which he left in 1998. He also produced two solo albums, '' Terminator X & The Valley of the ...

(born 1966), stage name for American DJ Norman Roberts, who worked with Public Enemy *

XXXTentacion Jahseh Dwayne Ricardo Onfroy (January 23, 1998 – June 18, 2018), known professionally as XXXTentacion, was an American rapper and singer-songwriter. Though a controversial figure due to his widely publicized legal troubles, XXXTentacion gai ...

(1998–2018), American rapper commonly referred to as "X" * X, ring name of wrestler

Carl Ouellet Carl Ouellet (born December 30, 1967) is a Canadian professional wrestler better known by his ring name PCO. He is known for his appearances with the World Wrestling Federation (as Pierre and Jean-Pierre LaFitte) and with World Championship Wre ...

(born 1967)

Other people

X González X González (born Emma González; November 11, 1999) is an American activist and advocate for gun politics in the United States, gun control. In 2018, they survived the Stoneman Douglas High School shooting, the list of school shootings in the ...

(born 1999), American gun control activist * Clyde X (1931–2009), Nation of Islam official * Khoisan X (1955–2010), political activist * Laura X (born 1940), feminist historian *

Malcolm X Malcolm X (born Malcolm Little, later el-Hajj Malik el-Shabazz; May 19, 1925 – February 21, 1965) was an African American revolutionary, Islam in the United States, Muslim minister and human rights activist who was a prominent figur ...

(1925–1965), civil rights activist *

Michael X Michael X (17 August 1933 – 16 May 1975), born Michael de Freitas, was a Trinidad and Tobago-born self-styled black revolutionary, convicted murderer, and civil rights activist in 1960s London. He was also known as Michael Abdul Malik and A ...

(1933–1975), activist and criminal * Xiuhtezcatl Martinez (born 2000), climate activist, often known as "X" * X, the girl in the

X Case ''Attorney General v X'' 9921 IR 1 (more commonly known as the "X Case") was a judgment of the Irish Supreme Court which established the right of Irish women to an abortion if a pregnant woman's life was at risk because of pregnancy, including th ...

, a landmark court case about abortion in Ireland * X, pseudonymous author of the 1947 ''Foreign Affairs'' "

X Article The "X Article" is an article, formally titled "The Sources of Soviet Conduct", written by George F. Kennan and published under the pseudonym "X" in the July 1947 issue of ''Foreign Affairs'' magazine. It introduced the term " containment" t ...

", formally titled "The Sources of Soviet Conduct" * X, surname often assumed by members of the

Nation of Islam The Nation of Islam (NOI) is a religious organization founded in the United States by Wallace Fard Muhammad in 1930. A centralized and hierarchical organization, the NOI is committed to black nationalism and focuses its attention on the Afr ...

Science, technology, and mathematics

Astronomy

* X, signifying a comet of unknown orbit * Galaxy X (galaxy), a postulated dark galaxy *

Planet X Following the discovery of the planet Neptune in 1846, there was considerable speculation that another planet might exist beyond its orbit. The search began in the mid-19th century and continued at the start of the 20th with Percival Lowell's ...

, a hypothesised planet in the outer solar system

Computing

OS X macOS, previously OS X and originally Mac OS X, is a Unix, Unix-based operating system developed and marketed by Apple Inc., Apple since 2001. It is the current operating system for Apple's Mac (computer), Mac computers. With ...

(pronounced 'OS ten'), former name of the Apple macOS operating system *

X Window System The X Window System (X11, or simply X) is a windowing system for bitmap displays, common on Unix-like operating systems. X originated as part of Project Athena at Massachusetts Institute of Technology (MIT) in 1984. The X protocol has been at ...

, referred to as ''X'' or ''X11'', a client-server display protocol often used in UNIX environments * X file format, used by

DirectX Microsoft DirectX is a collection of application programming interfaces (APIs) for handling tasks related to multimedia, especially game programming and video, on Microsoft platforms. Originally, the names of these APIs all began with "Direct" ...

* X, the mnemonic for the execute instruction on the TI-990 and the TMS9900 * X#, a High-level assembler for the x86 processor architecture as part of the

Cosmos The cosmos (, ; ) is an alternative name for the universe or its nature or order. Usage of the word ''cosmos'' implies viewing the universe as a complex and orderly system or entity. The cosmos is studied in cosmologya broad discipline covering ...

operating system

Mathematics

* X, Roman numeral for

10 (number) 10 (ten) is the even natural number following 9 and preceding 11. Ten is the base of the decimal numeral system, the most common system of denoting numbers in both spoken and written language. Name The number "ten" originates from the Prot ...

* x, an axis in the

Cartesian coordinate system In geometry, a Cartesian coordinate system (, ) in a plane (geometry), plane is a coordinate system that specifies each point (geometry), point uniquely by a pair of real numbers called ''coordinates'', which are the positive and negative number ...

* ''x'', a common variable for unknown or changing concepts in mathematics * A typographical approximation for: **

Cross product In mathematics, the cross product or vector product (occasionally directed area product, to emphasize its geometric significance) is a binary operation on two vectors in a three-dimensional oriented Euclidean vector space (named here E), and ...

(×) **

Multiplication sign The multiplication sign (), also known as the times sign or the dimension sign, is a mathematical symbol used to denote the operation of multiplication, which results in a product. The symbol is also used in botany, in botanical hybrid nam ...

(× or ✕)

Physics

X (charge) In particle physics, the X charge (or simply ''X'') is a conserved quantum number associated with the SO(10) grand unification theory. It is thought to be conserved in strong, weak, electromagnetic, gravitational, and Higgs interaction ...

, a conserved quantum number in particle physics *

X band The X band is the designation for a band of frequencies in the microwave radio region of the electromagnetic spectrum. In some cases, such as in communication engineering, the frequency range of the X band is set at approximately 7.0–11.2&nbs ...

, part of the microwave band of the electromagnetic spectrum *

X unit : ''For the software testing tools, see xUnit.'' The x unit (symbol xu) is a unit of length approximately equal to 0.1 pm (10−13 m). It is used to quote the wavelength of X-rays and gamma rays. Originally defined by the Swedish ...

, unit of length in physics

Other uses in science, technology, and mathematics

* × (or x), used in some types of

hybrid name In botanical nomenclature, a hybrid may be given a hybrid name, which is a special kind of botanical name, but there is no requirement that a hybrid name should be created for plants that are believed to be of hybrid origin. The ''International Co ...

s in botany *

X chromosome The X chromosome is one of the two sex chromosomes in many organisms, including mammals, and is found in both males and females. It is a part of the XY sex-determination system and XO sex-determination system. The X chromosome was named for its u ...

, a sex determinant in many animal species, including mammals * X, the

pseudoelement symbol The skeletal formula, line-angle formula, bond-line formula or shorthand formula of an organic compound is a type of minimalist structural formula representing a molecule's atoms, bonds and some details of its geometry. The lines in a skeleta ...

for a halogen or halide in organic chemistry

Automobiles

Tesla Model X The Tesla Model X is a battery electric mid-size luxury crossover SUV built by Tesla, Inc. since 2015. Developed from the full-sized sedan platform of the Tesla Model S, the vehicle notably uses falcon wing doors for rear passenger access. ...

, an electric crossover by Tesla * HiPhi X, an electric crossover automobile produced from 2020 * Zeekr X, a battery electric compact crossover SUV * BMW X models, a series of SUV models

Other uses

Generation X Generation X (often shortened to Gen X) is the Demography, demographic Cohort (statistics), cohort following the Baby Boomers and preceding Millennials. Researchers and popular media often use the mid-1960s as its starting birth years and the ...

, the Western sociological generation born after Boomers or Jonesers and before Millennials *

iPhone X The iPhone X (Roman numerals, Roman numeral "X" pronounced "ten") is a smartphone that was developed and marketed by Apple Inc. It is part of the List of iPhone models, 11th generation of the iPhone. Available for pre-order from September 26, 2 ...

, a smartphone by Apple Inc. * X (fragrance), a fragrance set by Irish pop vocal band Westlife * X (gender identity), used on passports and identification documents to denote intersex or indeterminate gender *

X (formerly Twitter) Twitter, officially known as X since 2023, is an American microblogging and social networking service. It is one of the world's largest social media platforms and one of the most-visited websites. Users can share short text messages, imag ...

, stylised as "

\mathbb

", an American social networking service *

X mark An X mark (also known as an ex mark or a cross mark or simply an X or ex or a cross) is used to indicate the concept of negation (for example "no, this has not been verified", "no, that is not the correct answer" or "no, I do not agree") as well ...

, a common written symbol of negation or affirmation * X, the symbol for a

strike Strike may refer to: People *Strike (surname) * Hobart Huson, author of several drug related books Physical confrontation or removal *Strike (attack), attack with an inanimate object or a part of the human body intended to cause harm * Airstrike, ...

in bowling * X, a handwritten symbol for a

kiss A kiss is the touching or pressing of one's lips against another person, animal or object. Cultural connotations of kissing vary widely; depending on the culture and context, a kiss can express sentiments of love, passion, romance, sex ...

* X, a street name for the drug

MDMA 3,4-Methylenedioxymethamphetamine (MDMA), commonly known as ecstasy (tablet form), and molly (crystal form), is an empathogen–entactogenic drug with stimulant and minor Psychedelic drug, psychedelic properties. In studies, it has been used ...

* X, often used by

straight edge Straight edge (sometimes abbreviated as sXe or signified by XXX or simply X) is a subculture of hardcore punk whose adherents refrain from using alcohol, tobacco, and other recreational drugs in reaction to the punk subculture's excesses. Some ...

rs to show their commitment to their lifestyle * ╳, a

box-drawing character Box-drawing characters, also known as line-drawing characters, are a form of semigraphics widely used in text user interfaces to draw various geometric frames and boxes. These characters are characterized by being designed to be connected horiz ...

* Ⓧ, a Japanese typographic symbol used in resale price maintenance * X, the legal

signature A signature (; from , "to sign") is a depiction of someone's name, nickname, or even a simple "X" or other mark that a person writes on documents as a proof of identity and intent. Signatures are often, but not always, Handwriting, handwritt ...

of an illiterate person *

Nilgiri Mountain Railway X class The X class is a metre gauge rack and pinion compound locomotive used by the Nilgiri Mountain Railway in the Nilgiri Hills of southern India. They are used on the section between Coonoor and Mettupalayam, where the line reaches a gradient of ...