1.mogul
大人物；大亨；富豪；权贵；巨头
movie/media/industry moguls 电影／传媒／工业巨头
He is a real estate mogul. His net assets is said to exceed 10 billion US dollars .他是一个地产大亨。他的资产净值据说超过百亿。
2.magnate
巨擘，富豪，大亨；工商界巨头
a well-known shipping magnate 赫赫有名的船王
a press magnate 报业巨子
a steel magnate 钢铁大王
an oil magnate 石油大亨
3.tycoon
（企业界的）大亨；巨擘
a business/property/shipping tycoon 商业／地产业／船业巨头
4.movers and shakers
有权势的人;有影响力的人物
= people with a lot of power and influence.
It's a play that's attracted the attention of the Broadway movers and shakers. 这部戏剧引起了百老汇大人物的关注。
Who are the movers and shakers around here? 这里是谁在作主？
5.honcho
负责人，主事者; the person in charge
Who's the head honcho around here? 这儿谁是负责人？
I want to talk to the head honcho. 我想跟这里的负责人说话。
6.who's who
某个领域中的重要人物或知名人士
The convention was attended by a who's who of the publishing industry. 一位出版业的要角出席了这场会议。
7.hot shot
高手；达人；大亨
= a talented and successful person.
She's quite a hotshot at chess. 她是个国际象棋高手。
Now he's a lecturer, he thinks he's a real hotshot! 现在他当了讲师，就认为自己是高手了。
The company has hired a couple of young hotshots to revamp its advertising campaign.
They've hired a hotshot lawyer.
8.big shot
大人物
He is a big shot though he looks so common. 虽然他看上去很普通,但他是个大人物。
His father is a big shot in the steel industry. 他父亲是钢铁业的大人物。
9.big wheel
重要人物；具有影响力的人
That man is a big wheel in the electronics industry. 那个人是电子工业巨子。
10.bigwig
权贵之人；大亨
We were invited to a lunch with local bigwigs. 我们受邀与当地要人共进午餐。
All the bigwigs of the city gathered together to discuss the formation of a new development bank. 这个城市的所有的大亨聚集在一起讨论如何成立一家新建设银行。
She had to entertain some boring local bigwigs.
11.big gun
有影响力的重要人物
She's a big gun in city politics. 她是市政要人。
They called in the big guns to deal with the problem.
12.big noise
有影响力的人, 要人, 名人
In our school, Professor Johnson was a big noise. 在我们学校, 约翰逊教授是个鼎鼎大名的人物。
13.kingpin
（组织中的）主要人物，领袖
Police have arrested the suspected kingpin of a car-stealing operation. 警察逮捕了疑似偷车集团首脑的嫌犯。