/kən'spɪrəsɪ; kən`spɪrəsɪ/
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.

npluralconspiracies [U and C]

a secret plan made by two or more people to do something that is harmful or illegal
→conspireconspiracy to do sth
　He was charged with conspiracy to commit criminal damage.
conspiracy against
　a conspiracy against the government
　There were many conspiracy theories (=beliefs that something is the result of a conspiracy) surrounding Princess Diana's death.
conspiracy of silence
an agreement not to talk about something, even though it should not be a secret
　There's often a conspiracy of silence surrounding bullying in schools.