Conspiracy

A conspiracy is a plan among two or more people to do a particular thing. Usually it is a secret plan, and often for an illegal act.

Types of conspiracies

A cabal is when religious, political, or tribal leaders meet secretly to plan things for their own purposes.
Conspiracy, in civil law, is an agreement between persons to deceive, mislead, or defraud others of their legal rights, or to gain an unfair advantage.
Conspiracy, in criminal law, is an agreement between persons to break the law in the future, in some cases having committed an act to further that agreement, typically treated as a felony.
Conspiracy, in politics, is a plan to overthrow a part or all of a government.

↑ Moss, Paul 2016. BBC News Magazine. From Panama to Sparta: a brief history of leaks.