• Conspiracy, as a legal term, is an agreement of two or more people either to commit a crime or to achieve a lawful end by unlawful means: see conspiracy (crime), and conspiracy (civil).

• Conspiring, in common non-legal usage, is the act of working in secret to obtain some improper goal, generally with negative connotations.

Etymology

Etymologically, the term comes from Latin con- "with, together", and spirare "to breathe".

Other uses

• Conspiracy (film) can also refer to a 2001 TV film released by HBO, starring Kenneth Branagh, Stanley Tucci, and Colin Firth, about the Wannsee Conference in 1942 Germany.
• Conspiracy theory
• Conspiracy, a Hungarian demogroup.
• The Great Conspiracy, a barbarian assault on Roman Britain
• KGB (computer game), a 1992 computer game also known as Conspiracy.
• Conspiracy (TNG episode), the name of an episode of Star Trek: The Next Generation.
• Conspiracy (film), the name of a television film about the Wannsee conference.
• Conspiracy (Caesar) for the conspiracy to kill Julius Caesar.