| Acronym | Meaning |
| EPGS | EOS Polar Ground Sites |
| PLGR | Precision Lightweight GPS Receiver (plugger) |
| BBB | Better Business Bureau - Blood-Brain Barrier |
| LAD | Laser Aiming Device |
| LNG | Liquefied Natural Gas |
| FIR | Final Inspection Report |
| LOA | Limit Of Advance |
| HTS | High-Temperature Superconducting Wire |
| NACA | (U.S.) National Advisory Committee For Aeronautics (1915?1958 |
| FAS | Persian Language (ISO 639-2 Code) |