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English definition of “the FBI”

the FBI

noun [+ sing/pl verb]     /ˌef.biːˈaɪ/
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 noun from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
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