ATF is an acronym for a government agency called the Bureau of Alcohol, Tobacco, Firearms and Explosives. This is the most frequently cited definition of ATF, but there are other possible meanings.
In the realm of science and mechanics, these initials might stand for Advanced Toroidal Facility, Activating Transcription Factor or Automatic Transmission Fluid. Allied Tactical Force, Air Task Force and Advanced Tactical Fighter are all phrases in the military sector that use the ATF acronym. Automation Test Facility and Automated Testing Framework are related terms with the acronym ATF. Several slang definitions of the acronym also exist, many of them serving as an abbreviated way to express a vulgar term.