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ENGLISH · A WORD WITH POSSIBILITIES

FBI.

Initialism of Federal Bureau of Investigation.

3 characters1 syllables approx.English language

Meaning & usage

name/ˈɛf.biː.aɪ/
  1. Initialism of Federal Bureau of Investigation.

    US · abbreviation · alt-of · initialism
  2. Federation of British Industry (1916–1965), forerunner of CBI (Confederation of British Industry).

    UK
  3. fire behaviour index

    Australia
noun/ˈɛf.biː.aɪ/
  1. Fixed-bit index.

  2. Female body inspector.

    US · humorous
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Definitions, grammatical labels, IPA, etymology and examples: Wiktionary contributors, extracted by Kaikki / Wiktextract. Adapted under CC BY-SA 4.0. Selected fields and authored examples are shown; third-party quotations and audio are omitted. See contributor history.

Last enriched 2026-09-10. Definitions are in English. Romanizations are shown when supplied by the source; syllable estimates are omitted for unsupported scripts.