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English definition of “the FBI”

the FBI

noun [+ sing/pl verb] uk   /ˌef.biːˈaɪ/ us  
abbreviation for the Federal Bureau of Investigation: one of the national police forces in the US controlled by the central governmentUnited States politics and governmentThe police generally
(Definition of the FBI from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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