Cabal
Part of speech: noun
Definition: A usually secret exclusive organization of individuals gathered for a nefarious purpose. A secret plot. An identifiable group within the tradition of Discordianism.
Conspiracy
Part of speech: noun
Definition: The act of two or more persons, called conspirators, working secretly to obtain some goal, usually understood with negative connotations.An agreement between two or more persons to break the law at some time in the future.A group of ravens.
Example sentence: Voter fraud is a reality in American elections, but it is typical of the candidate to confuse anecdote with data and turn allegation into conspiracy.