G-man Definition

jēmăn
g-men
noun
An agent of the Federal Bureau of Investigation.
Webster's New World

(historical) A US government agent fighting organized crime in the interwar years.

Wiktionary

Any person working for the US Government, especially in undercover work.

Wiktionary
Synonyms:

Other Word Forms of G-man

Noun

Singular:
G-man
Plural:
G-men

Origin of G-man

  • Probably abbreviated from government man

    From Wiktionary

  • Perhaps from g(overnment) man

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