The FBI is a government agency in the United States that investigates crimes in which a national law is broken or in which the country's security is threatened. FBI is an abbreviation for 'Federal Bureau of Investigation'.
FBI in British English
abbreviation for(in the US)
Federal Bureau of Investigation; an agency of the Justice Department responsible for investigating violations of Federal laws
FBI in American English
Federal Bureau of Investigation
Examples of 'FBI' in a sentence
FBI
There was the sensation that the men in the Lincoln were CIA or FBI or some other official organisation.
Thomas, Craig THE LAST RAVEN
Malone abruptly remembered movies where American local officers resented the intrusion of the FBI.
Jon Cleary YESTERDAY'S SHADOW (2002)
His family were never found, despite one of the most intensive covert manhunts in FBI history.