Definition of “G-man” - English Dictionary

british dictionary

“G-man” in British English

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G-mannoun [ C ]

uk /ˈdʒiː.mæn/ us /ˈdʒiː.mæn/ plural -men uk /-men/ us US old-fashioned slang

(Definition of “G-man” from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)