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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

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The Guthrie family has offered a $1 million reward for information leading to Nancy Guthrie’s recovery, in addition to a Federal Bureau of Investigation reward of $100,000.

From The Wall Street Journal Jul. 27, 2026

Surfside Beach had fallen victim to a “business email compromise” scam, a cyber-swindle that cost $3 billion nationally last year, the Federal Bureau of Investigation says.

From The Wall Street Journal Jul. 22, 2026

Hamas, the U.S.-designated terrorist group and Iran ally, has asked for donations in crypto, according to the Federal Bureau of Investigation.

From The Wall Street Journal Jul. 4, 2026

The Federal Bureau of Investigation has also "seized over 500 of those drones, to process as evidence in FBI investigations," Doug Olson, the FBI's special agent responsible for coordination around the 2026 World Cup.

From Barron's Jun. 29, 2026

In 1942, in the middle of World War II, some strange letters came to the attention of the Federal Bureau of Investigation.

From "The Woman All Spies Fear" by Amy Butler Greenfield

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