| Acronym | Meaning |
| ADATS | Agricultural Development And Training Society - Air Defence Anti-Tank System - Australian Defence Air Traffic System |
| AFS | Active Front Steering - Air Facility Sub-System - Amniotic Fluid-derived Stem Cell |
| BI | Bismuth |
| CZE | Czech Republic (ISO 3166 Trigram) |
| RQ | Puerto Rico (FIPS 10-4 Territory Code) |
| PLL | Phase-Locked Loop (electronics) |
| SOCOM | (U.S.) Special Operations Command |
| HIRISE | High Resolution Imaging Science Experiment |
| GG | Georgia (FIPS 10-4 Country Code) |
| LIBS | Laser Induced Breakdown Spectroscopy |