C-21, C 21, or C21 may refer to: C21 Sako TRG M10 Sniper Weapon System, Canadian Armed Forces sniper rifle. C21 (group), a Danish boy band C21 (album), 2003 C-21 Dolphin, a flying boat used by the United States Army Air Corps , 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 (ICD-10 code: C21) Center Game (Encyclopaedia of Chess Openings code: C21) Caldwell 21 or NGC 4449, an irregular galaxy in the constellation
C-21, C 21, or C21 may refer to: C21 Sako TRG M10 Sniper Weapon System, Canadian Armed Forces sniper rifle. C21 (group), a Danish boy band C21 (album), 2003 C-21 Dolphin, a flying boat used by the United States Army Air Corps , 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 (ICD-10 code: C21) Center Game (Encyclopaedia of Chess Openings code: C21) Caldwell 21 or NGC 4449, an irregular galaxy in the constellation Canes Venatici Carbon-21 (C-21 or 21C), an isotope of carbon Catch 21, a television game show based on blackjack
==See also== 21st century Century 21 (disambiguation) 21c (disambiguation)
Discovered by embedding cosine similarity (sentence-transformers MiniLM, 384-dim).