conspiracy
noun
[ kənˈspɪrəsi ]
• a secret plan by a group to do something unlawful or harmful.
Similar:
plot,
scheme,
stratagem,
plan,
machination,
cabal,
intrigue,
palace intrigue,
deception,
ploy,
trick,
ruse,
dodge,
subterfuge,
sharp practice,
frame-up,
fit-up,
racket,
put-up job,
complot,
covin,
Origin:
late Middle English: from Anglo-Norman French conspiracie, alteration of Old French conspiration, based on Latin conspirare ‘agree, plot’ (see conspire).