C21

C-21, C 21, or C21 may refer to:C21 (band), a Danish boy band
C21 (album), 2003
C-21 Dolphin, a flying boat used by the United States Army Air Corps
HMS C21, a 1909 British C class submarine
Learjet C-21, an American military transport aircraft
Sauber C21, a 2002 racing car
Space Adventures C-21, a Russian design for a suborbital rocket plane for Space Adventures
Anal cancer 
Center Game 
Caldwell 21 or NGC 4449, an irregular galaxy in the constellation Canes Venatici
Catch 21, a television game show based on blackjack
HMS Glasgow (C21)


C-21, C 21, or C21 may refer to:C21 (band), a Danish boy band C21 (album), 2003 C-21 Dolphin, a flying boat used by the United States Army Air Corps HMS C21, a 1909 British C class submarine Learjet C-21, an American military transport aircraft Sauber C21, a 2002 racing car Space Adventures C-21, a Russian design for a suborbital rocket plane for Space Adventures Anal cancer Center Game Caldwell 21 or NGC 4449, an irregular galaxy in the constellation Canes Venatici Catch 21, a television game show based on blackjack HMS Glasgow (C21)
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