Double

Double, The Double or Dubble may refer to:

Mathematics and computing

 * Multiplication by 2
 * Double precision, a floating-point representation of numbers that is typically 64 bits in length
 * A double number of the form $$x+yj$$, where $$j^2=+1$$
 * A 2-tuple, or ordered list of two elements, commonly called an ordered pair, denoted $$(a,b)$$
 * Double (manifold), in topology

Food and drink

 * A drink order of two shots of hard liquor in one glass
 * A "double decker", a hamburger with two patties in a single bun

Games

 * Double, action in games whereby a competitor raises the stakes
 * , in contract bridge
 * Doubling cube, in backgammon
 * Double, doubling a blackjack bet in a favorable situation
 * Double, a bet offered by UK bookmakers which combines two selections
 * Double, villain in the video game Mega Man X4
 * A kart racing game Mario Kart: Double Dash
 * An arcade action game Double Dragon

Sports

 * Double (association football), the act of a winning a division and primary cup competition in the same season
 * Double (baseball), a two-base hit in baseball
 * The Double (Seattle Mariners), Edgar Martinez's walk-off double in Game 5 of the 1995 American League Division Series
 * Double (cricket), the feat of scoring a thousand first-class runs and taking a hundred first-class wickets in a single season
 * Double (volleyball), scoring ten or more in a statistical category (aces, kills, blocks, digs, or assists) in a single match
 * Double (Gaelic games), the act of winning the All-Ireland Senior Football Championship and the All-Ireland Senior Hurling Championship in the same year
 * Double (rugby league), winning the Super League and Challenge Cup in one season
 * Double-double (basketball), accumulating ten or more in two key statistical categories – points, rebounds, assists, steals, and blocked shots – in a single game
 * Double Duty, competing in the Indianapolis 500 and Coca-Cola 600 on the same day or weekend.

Literature

 * The Double (Dostoevsky novel), an 1846 novella by Fyodor Dostoevsky
 * The Double (Saramago novel), a 2002 novel by José Saramago
 * Double (manga), a 2019 manga series by Ayako Noda

Film and television

 * Double (filmmaking), someone who substitutes for the credited actor of a character
 * The Double (1934 film), a German crime comedy film
 * The Double (1963 film), a British film, part of the Edgar Wallace Mysteries series
 * The Double (1971 film), an Italian film
 * The Double (2011 film), a spy thriller film
 * The Double (2013 film), a film based on the Dostoevsky novella
 * Kamen Rider Double, a 2009–10 Japanese television series
 * Kamen Rider Double (character), the protagonist in a Japanese television series of the same name

Music

 * Double album, audio album spanning two units of the primary medium in which it is sold, typically records and CDs
 * Double variation, a variation form in music
 * Double (band), a Swiss pop duo
 * Double (singer) (born 1975), a Japanese R&B singer
 * Double (Roch Voisine album) (1990)
 * Double (Zhao Wei album) (2005)
 * "Double" (BoA song) (2003)
 * "Double", by Yeat from 2 Alive (2022)
 * "The Double", an instrumental by Clint Mansell from the Black Swan soundtrack (2010)
 * The Double Violin Concerto (Bach) in D minor, BWV 1043, commonly referred to as "The Double" among violinists

People

 * Baron Emile Double (1869–1938), vigneron who established the vineyard at Château de Beaupré
 * François-Joseph Double (1776–1842), French physician
 * Marie-Louise Double de Saint-Lambert (1891–1974), French philanthropist later known as Countess Lily Pastré
 * Steve Double (born 1966), British politician and Member of Parliament

Places

 * Double (lunar crater), in Mare Tranquillitatis
 * Double Lake, a lake in Minnesota, US

Other uses

 * Double, also called a look-alike or doppelgänger, one person or being that resembles another
 * Polish Enigma double, a machine replicating the function of Nazi Germany's cipher machines
 * Double, a former fraction of the Guernsey pound
 * Double, a former rank of liturgical feast in the Roman Rite of the Catholic Church
 * Dubbel, a strong Belgian Trappist beer or, more generally, a strong brown ale
 * A double, a shorthand for an instance of double tradition, verses duplicated in the Biblical gospels of Matthew and Luke