G-man meaning

jēmăn
Frequency:
An agent of the Federal Bureau of Investigation.
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(informal) An agent of the Federal Bureau of Investigation.
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(historical) A US government agent fighting organized crime in the interwar years.
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Any person working for the US Government, especially in undercover work.
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Origin of g-man

  • Perhaps from g(overnment) man

    From American Heritage Dictionary of the English Language, 5th Edition

  • Probably abbreviated from government man

    From Wiktionary