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U.S. Government.
Federal Bureau of Investigation: the federal agency charged with investigations for the Attorney General and with safeguarding national security. Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2018.
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Examples from the Web for FBI
Contemporary Examples
Historical Examples
  • It is often suggested that investigation by the FBI might be the answer.

  • When the time was right, when he had the story locked, he'd go to the FBI with it.

    Ten From Infinity Paul W. Fairman
  • He would be out of business soon, once the FBI agent had got there.

    The Perfectionists Arnold Castle
  • He couldn't let the police get the wrong impression of FBI agents.

    Out Like a Light Gordon Randall Garrett
  • Maybe all this about being an FBI agent was just a figment of his imagination.

    Out Like a Light Gordon Randall Garrett
British Dictionary definitions for FBI


abbreviation (in the US)
Federal Bureau of Investigation; an agency of the Justice Department responsible for investigating violations of Federal laws
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
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Word Origin and History for FBI

U.S. Federal Bureau of Investigation, formed 1935 from the former United States Bureau of Investigation (1908).

Online Etymology Dictionary, © 2010 Douglas Harper
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