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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.

Within 24 hours the Federal Bureau of Investigation had Mr. Scelfo in custody thanks to facial recognition technology.

From The Wall Street Journal • Jun. 1, 2026

Federal Bureau of Investigation Director Kash Patel called the U.S. action against Prince Group “one of the largest financial fraud takedowns in history.”

From The Wall Street Journal • Apr. 28, 2026

Federal Bureau of Investigation Director Kash Patel filed a defamation lawsuit against the Atlantic and one of its writers Monday, alleging an article about his drinking and overall conduct was malicious and factually inaccurate.

From The Wall Street Journal • Apr. 20, 2026

He noted that the journalists reached out to Trump, Justice Department officials and the Federal Bureau of Investigation before publication.

From The Wall Street Journal • Apr. 13, 2026

The New York police passed the hollow nickel on to the Federal Bureau of Investigation.

From "Fallout: Spies, Superbombs, and the Ultimate Cold War Showdown" by Steve Sheinkin

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