Collocations for conspiracy - noun

big, great, larger, massive, vast
grand
criminal, government, media, political
charges of criminal conspiracy and corruption

alleged
global, international, worldwide

be involved in, join
I suspected that he was involved in the conspiracy.

be part of
This action was part of a conspiracy to deceive the public.

organize
Who organized the conspiracy against the president?

expose, uncover
Officials have uncovered a conspiracy to discredit the government.

see, suspect
He's the sort of person who sees a conspiracy around every corner.

theory
charge
All three men were convicted on conspiracy charges.

conspiracy against
a conspiracy against the king

conspiracy between
a conspiracy between the police and the right-wing parties

a conspiracy of silence
There is a conspiracy of silence about the killer (= nobody will say what they know).