A person, such as a family member or close friend, who is important or influential in one's life.

在某人生命中很重要的或对其生活产生很大影响的人，如家庭成员或亲密朋友。

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"I knew he would be killed--the people he was dealing with were totally criminal, " says one close friend of Listiev's.

FORBES: Godfather of the Kremlin?

He briefly served in the Johnson and Carter administrations (he was a particularly close friend of Zbigniew Brzezinski, one of Barack Obama's early backers).

ECONOMIST: Lexington

Mr. Zuckerberg is working on launching the group along with close friend Joe Green, who was one of the CEO's Harvard University roommates, these people said.

WSJ: Facebook's Mark Zuckerberg Starting Political Group