conspiracy
n
~ (to sth/to do sth) 1 [U]
act of conspiring, esp joint planning of a crime 阴谋活动(尤指共谋犯罪)
accused of conspiracy to murder 被控参与谋杀罪.
2 [C] plan made by conspiring 阴谋; 共谋
a conspiracy to overthrow the Government 颠覆政府的阴谋
a conspiracy of silence, ie an agreement not to talk publicly about sth which should not remain secret 保持缄默的密约(对本不该保密的事不公开谈论的约定). Cf 参看 plot2 2.