Definition of conspiracy in English:

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Pronunciation: /kənˈspirəsē/

noun (plural conspiracies)

1A secret plan by a group to do something unlawful or harmful: a conspiracy to destroy the government
More example sentences
  • The tacit conspiracy is the cause; the secret conspiracies are the symptoms.
  • Where there were kings, queens, palaces there ought to be intrigues, conspiracies and secret tunnels.
  • If the uncovered ‘secrets’ involve grand conspiracies, so much the better.
plot, scheme, plan, machination, ploy, trick, ruse, subterfuge
informal racket
1.1The action of plotting or conspiring: they were cleared of conspiracy to pervert the course of justice
More example sentences
  • She is serving three-and-a-half years in prison for conspiracy to pervert the course of justice.
  • Tamper with a witness and see how you would go on a charge of conspiracy to pervert the course of justice.
  • The second man is also being held on suspicion of conspiracy to pervert the course of justice.
plotting, collusion, intrigue, connivance, machination, collaboration;


a conspiracy of silence

An agreement to say nothing about an issue that should be generally known.
Example sentences
  • There's a conspiracy of silence around this issue.
  • There were also calls to revive the issues that had been subject to a debilitating conspiracy of silence.
  • In a room where people unanimously maintain a conspiracy of silence, one word of truth sounds like a pistol shot.


Late Middle English: from Anglo-Norman French conspiracie, alteration of Old French conspiration, based on Latin conspirare 'agree, plot' (see conspire).

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