Look up ( ) in Wiktionary, the free dictionary.
"( )" or two parentheses (40 and 41 in ASCII) may refer to:
- Function prototype, no arguments or unknown arguments, in some programming languages
 - The empty list or tuple in some programming languages
 - The unit type in the Haskell programming language
 - ( ) (album), a 2002 album by Sigur Rós
 - ( ) (film), a 2003 short film directed by Morgan Fisher
 - A hug, in emoticon
 - The stage name of Kim Carlsson, a member of the Swedish black metal band Lifelover
 
See also
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