Conspiracy

n. intrigue, plot, secret plan

Conspiracy may refer toAn act of working in secret to obtain some goal, usually understood with negative connotations.History and LawCabal, conspiratorial association between religious, political, or tribal officialsConspiracy (civil), agreement between two or more natural persons to break the law at some time in the futureConspiracy (crime), agreement between two or more natural persons to break the law at some time in the futureConspiracy (political), a plot to overthrow a government or other powersConspiracy (Caesar), the conspiracy to kill Julius CaesarConspiracy 58, conspiracy theory that claims that the 1958 Football World Cup in Sweden didn't really take place as commonly believed
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Noun
1. a secret agreement between two or more people to perform an unlawful act
(synonym) confederacy
(hypernym) agreement, understanding
(hyponym) conspiracy of silence
(derivation) conspire, collude
2. a plot to carry out some harmful or illegal act (especially a political plot)
(synonym) cabal
(hypernym) plot, secret plan, game
(hyponym) Gunpowder Plot
(derivation) conspire, cabal, complot, conjure, machinate
(classification) politics, political science, government
3. a group of conspirators banded together to achieve some harmful or illegal purpose
(synonym) confederacy
(hypernym) set, circle, band, lot
(member-meronym) conspirator, coconspirator, plotter, machinator

(n.)
An agreement, manifesting itself in words or deeds, by which two or more persons confederate to do an unlawful act, or to use unlawful to do an act which is lawful; confederacy.
  

(n.)
A concurence or general tendency, as of circumstances, to one event, as if by agreement.
  

(n.)
A combination of men for an evil purpose; an agreement, between two or more persons, to commit a crime in concert, as treason; a plot.
  

An agreement between two or more persons to commit a criminal act. Those forming the conspiracy are called conspirators. - (read more on Conspiracy)