FBI
🇺🇸 /ˈɛˈfbiːˈaɪ/
📖 Definitions
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noun
The Federal Bureau of Investigation, the principal federal law enforcement agency and domestic intelligence service of the United States, operating under the jurisdiction of the U.S. Department of Justice.
🔗 Details
Word forms
uncountable
Collocations
FBI agentFBI investigationFBI directorFBI headquartersFBI database
Synonyms
Federal Bureau of Investigationthe Bureau
Commonly confused
CIA
EN: The CIA (Central Intelligence Agency) handles foreign intelligence, while the FBI handles domestic law enforcement and counterintelligence.
NSA
EN: The NSA (National Security Agency) focuses on signals intelligence and cybersecurity, while the FBI is a law enforcement agency.
Spelling tips
EN: As an initialism, it should be written in all capital letters: 'FBI', not 'Fbi' or 'fbi'.
💬 Examples
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The FBI investigated the case of corporate fraud that spanned multiple states.