Meaning of “kingpin” in the English Dictionary

american-english dictionary

"kingpin" in American English

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kingpinnoun [ C ]

us /ˈkɪŋˌpɪn/

the most important person in an organization:

He was the kingpin of the Democratic organization in Chicago.

(Definition of “kingpin” from the Cambridge Academic Content Dictionary © Cambridge University Press)

"kingpin" in Business English

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kingpinnoun [ C, usually singular ]

uk /ˈkɪŋpɪn/ us

the most important person in a company or organization, often an illegal organization:

a drugs/crime kingpin

(Definition of “kingpin” from the Cambridge Business English Dictionary © Cambridge University Press)