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Federal Bureau of Investigation

British  

noun

  1. See FBI

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Federal Bureau of Investigation Cultural  
  1. An agency of the United States federal government, long headed by J. Edgar Hoover, which investigates violations of federal (rather than state or local) laws, including kidnaping, smuggling narcotics, and espionage.


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Established in 1908 under the Department of Justice, the FBI earned its reputation in the 1920s and 1930s by apprehending notorious bank robbers and gangsters.

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

The incident is being investigated by officers from the Metropolitan Police's Cybercrime Unit, after the force received a referral from the Federal Bureau of Investigation in the US.

From BBC • Apr. 7, 2026

Those that don’t, he said, could expect scrutiny from federal health agencies, the Justice Department and Federal Bureau of Investigation.

From The Wall Street Journal • Mar. 25, 2026

You can also file a report with the Internet Crime Complaint Center, a division of the Federal Bureau of Investigation.

From MarketWatch • Mar. 23, 2026

When the Federal Bureau of Investigation reports on 2025 nationwide crime data later this year, there is a “strong possibility” last year’s homicide rate will be 4 per 100,000 residents, according to the CCJ report.

From The Wall Street Journal • Mar. 14, 2026

By Friday, when the court recessed for the weekend, the state had completed its case, which included the appearance of four Special Agents of the Federal Bureau of Investigation in Washington, D.C.

From "In Cold Blood" by Truman Capote