We generally avoid acronyms and abbreviations, but following are a few you should be familiar with:
ABET — Accreditation Board for Engineering and Technology
AF — Air Force
AFB — Air Force Base
AOC — Air Officer Commanding
CIA — Central Intelligence Agency
CINC — Commander in Chief
DIA — Defense Intelligence Agency
DoD — Department of Defense
HQ — Headquarters
NASA — National Aeronautics and Space Administration
NATO — North Atlantic Treaty Organization
NCAA — National Collegiate Athletic Association
ROTC — Reserve Officer Training Corps (AFROTC — Air Force ROTC)
SAC — Strategic Air Command
SecAF — Secretary of the Air Force
STEM — Science, Technology, Engineering, and Mathematics
US — United States
USAF — US Air Force
USAFA — US Air Force Academy
USAFE — US Air Forces in Europe
USMA — US Military Academy
USNA — US Naval Academy