1.to be privy to sth<正式>(know about sth; to information, facts)了解…内情；参与…秘事
Only three people will be privy to the facts.只有三个人会了解事实。
I wasn't privy to any information about the takeover.我对并购一事毫不知情。
2.<古>(secret)秘密的；隐蔽的
I undertake to perform certain privy services for him.我负责为他提供某种秘密服务。
3.<古>(of one person)私人的