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Definition of fbi

fbi

/ˌɛf.biːˈaɪ/
F · B · I

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fbi Lexical Profile

• noun

1

American The Federal Bureau of Investigation; the principal federal investigative agency and domestic intelligence service of the United States, operating under the Department of Justice.

Example

"Local authorities requested assistance from the FBI to investigate the interstate cybercrime ring."

Synonyms
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• Rhymes for fbi

Word Origin & Etymology

An initialism of Federal Bureau of Investigation, the agency's official name adopted in 1935 after having been founded in 1908 as the Bureau of Investigation.

Cite this Entry


Wordmom. (2026). Definition of Fbi. In Wordmom Dictionary. Retrieved Oct 30, 2026, from https://wordmom.com/dictionary/fbi
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