conspiracy of silence - a conspiracy not to talk about some situation or event; "there was a conspiracy of silence about police brutality"

agreement, understanding - the statement (oral or written) of an exchange of promises; "they had an agreement that they would not interfere in each other's business"; "there was an understanding between management and the workers"

plot, secret plan, game - a secret scheme to do something (especially something underhand or illegal); "they concocted a plot to discredit the governor"; "I saw through his little game from the start"

Gunpowder Plot - a conspiracy in 1605 in England to blow up James I and the Houses of Parliament to avenge the persecution of Catholics in England; led by Guy Fawkes

political science, politics, government - the study of government of states and other political units

band, circle, lot, set - an unofficial association of people or groups; "the smart set goes there"; "they were an angry lot"

coconspirator, conspirator, machinator, plotter - a member of a conspiracy