| Acronym | Meaning |
| FLK | Falkland Islands (ISO 3166 Trigram) -Funny-Looking Kid (medical Diagnosis In-joke) |
| EPLRS | Enhanced Position Location Reporting System (ee-plarz) |
| ICNAF | International Commission For The Northwest Atlantic Fisheries (became NAFO In 1978) |
| AO | Angola (FIPS 10-4 Country Code; ISO 3166 Digram) -Approach Officer (submarine) - Area Of Operations |
| ARBA | Army Review Boards Agency |
| CAA | Canadian Automobile Association - (NORAD) Center For Aerospace Analysis - (U.S.) Center For Army Analysis - (U.S.) Clean Air Act - (U.S. Army) Concepts Analysis Agency - Civil Aviation Authority - Colonial Athletic Association |
| PAPI | Precision Approach Path Indicator (aviation) |
| G | Gauss |
| HEMP | High-Altitude Electromagnetic Pulse |
| NAA | N-Acetylaspartate |