| Acronym | Meaning |
| RORO OR RO | Ro -Roll-On/Roll-Off (ferry) |
| WRS | Worldwide Reference System |
| DTED | Digital Terrain Elevation Data (dee-ted) |
| IRR | Iranian Rial (ISO 4217 Currency Code) |
| UZS | Uzbek Som (ISO 4217 Currency Code) |
| ARB | Administrative Review Board |
| IMA | Intermediate Maintenance Activity |
| DMRB | Design Manual For Roads And Bridges |
| GWS | Gulf War Syndrome |
| LPC | Linear Predictive Coding |