| Acronym | Meaning |
| DUSD | (U.S.) Deputy Under-Secretary Of Defense |
| QNH | Regional Mean Sea Level Atmospheric Pressure (aeronautical Q Code) |
| AJD | Astronomical Julian Day |
| APFSDS | Armour-Piercing |
| COBOL | COmmon Business-Oriented Language |
| RADAR | RAdio Detection And Ranging |
| BDNF | Brain-Derived Neurotrophic Factor |
| GPMP | General Purpose Macro Processor |
| FJ | Femtojoule |
| SHP | Saint Helena Pound (ISO 4217 Currency Code) |