| Acronym | Meaning |
| PUP | Pull-Up Point |
| MLVW | Medium Logistics Vehicle |
| GRB | Gamma-Ray Burst |
| USDOE | United States Department Of Energy |
| DMU | Diesel Multiple Unit - A Method Of Connecting Self-propelled Railway Vehicles Together To Form A Train Under The Control Of One Driver. |
| FMRI | Functional Magnetic Resonance Imaging |
| IY | Iraqi-Saudi Neutral Zone (FIPS 10-4 Territory Code; Obsolete 1993) |
| JTN | Johnston Atoll (ISO 3166 Trigram; Obsolete 1986) |
| TASM | Tactical Air-to-Surface Missile |
| WSUS | Windows Server Update Services |