FBI

American

[ef-bee-ahy] / ˈɛfˈbiˈaɪ /

noun

U.S. Government.

Federal Bureau of Investigation: the federal agency charged with investigations for the Attorney General and with safeguarding national security.

FBI British

abbreviation

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

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.

However, Acting Special Agent in Charge Alex Doran, from the FBI's San Antonio office, said there were indications in the SUV and on the suspect that suggested a "nexus to terrorism".

From BBC

How it all unraveled, culminating in FBI raids on the superintendent.

From Los Angeles Times

After a review of the Epstein case last year, DOJ and FBI officials said in a July 2025 memo that they “did not uncover evidence that could predicate an investigation against uncharged third parties.”

From The Wall Street Journal

Ashcroft formally rejected a $50 million FBI request to hire additional counterterrorism agents and intelligence specialists on Sept. 10, the day before the attacks.

From Salon

Alberto Carvalho has been placed on indefinite administrative leave, officials announced Friday — two days after FBI agents raided his home and office related to an undisclosed criminal investigation.

From Los Angeles Times

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023