Double
A double is a look-alike or doppelgänger; one person or being that resembles another.
Double, The Double or Dubble may also refer to:

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 (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

Food and drink
Doppio, a double shot of espresso
Dubbel, a strong Belgian Trappist beer or, more generally, a strong brown ale
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
double, in contract bridge
Doubling cube, in backgammon
Double, villain in the video game Mega Man X4
A kart racing game Mario Kart: Double Dash
An arcade action game Double Dragon

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
Andrew Dubble, the primary character in the Andrew Lost children's novels

Mathematics and computing
Multiplication by 2
Double precision, a floating-point representation of numbers that is typically 64 bits in length
A split-complex number of the form 
  
    
      
        x
        +
        y
        j
      
    
    {\displaystyle x+yj}
  , where 
  
    
      
        
          j
          
            2
          
        
        =
        +
        1
      
    
    {\displaystyle j^{2}=+1}
  
A 2-tuple, or ordered list of two elements, commonly called an ordered pair, denoted 
  
    
      
        (
        a
        ,
        b
        )
      
    
    {\displaystyle (a,b)}
  
Double (manifold), in topology

Music
Double album, audio album spanning two units of the primary medium in which it is sold, typically records and CDs
Doubling (voicing), a kind of musical voicing
Double variation, a variation form in music

Bands and musicians
Double (band), a Swiss pop duo
Double (singer) (born 1975), a Japanese R&B singer

Albums
Double (Roch Voisine album) (1990)
Double (Zhao Wei album) (2005)

Songs
"Double" (BoA song) (2003)
"Double", by Yeat from 2 Alive (2022)
"The Double", an instrumental by Clint Mansell from the Black Swan soundtrack (2010)

Other uses in music
The Double Violin Concerto (Bach) in D minor, BWV 1043, commonly referred to as "The Double" among violinists
Pasodoble, a traditional couple's dance from Spain

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 Conservative Party politician, Member of Parliament (MP) for St Austell and Newquay since 2015

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

Sports
Double (association football), the act of a winning a division and primary cup competition in the same season
Double scull, a two-man sculling boat raced in the sport of rowing
Double (baseball), a two-base hit in baseball
The Double (Seattle Mariners), a specific instance of the above that occurred during the 1995 Major League Baseball season
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-double (basketball), accumulating ten or more in two of five statistical categories (points, rebounds, assists, steals, or blocks) in a single game
Double Duty, a driver attempting to compete in the Indycar Indianapolis 500 and NASCAR Coca-Cola 600 on the same day
The Double (Gaelic games), the act of winning the All-Ireland Senior Football Championship and the All-Ireland Senior Hurling Championship in the same year
The Double (rugby league), winning the Super League and Challenge Cup in one season

Other
Double, a bet which combines two selections; see Glossary of bets offered by UK bookmakers#Double
Polish Enigma doubles, 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
Double-flowered form of plants

See also

All pages with titles containing Double  or Doubles
All pages with titles beginning with Double Double letter
Doubles (disambiguation)
Doubling (disambiguation)
Duplication (disambiguation)
Single (disambiguation)
Binary (disambiguation)
Dual (disambiguation)
Duo (disambiguation)
Pair (disambiguation)
Twin (disambiguation)