conspiracy Meaning, Definition & Usage

noun a secret agreement between two or more people to perform an unlawful act
confederacy.
noun a plot to carry out some harmful or illegal act (especially a political plot)
cabal.
noun a group of conspirators banded together to achieve some harmful or illegal purpose
confederacy.

See Conspiration.

plural Conspiracies

A combination of men for an evil purpose; as agreement, between two or more persons, to commit a crime in concert, as treason; a plot.
When shapen was all his conspiracy From point to point. Chaucer.

They made a conspiracy against [Amaziah]. 2 Kings xiv. 19.

I had forgot that foul conspiracy Of the beast Caliban and his confederates. Shak.
A concurence or general tendency, as of circumstances, to one event, as if by agreement.
A conspiracy in all heavenly and earthly things. Sir P. Sidney.
(Law) 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. Syn. -- Combination; plot; cabal.