| Abbreviation | Definition |
|---|---|
| PWRMS | Pre-Positioned War Reserve Materiel Stock |
| PWRMS | Pre-Positioned War Reserve Materiel Stocks |
| PWRR | Petroleum War Reserve Requirements |
| PWRS | Petroleum War Reserve Stocks |
| PWRS | Pre-Positioned War Reserve Stock |
| PWRS | Pre-Positioned War Reserve Stocks |
| PWS | Performance Work Statement |
| PWS | Primary Weapons Systems |
| PWS/DS | Potable Water Storage/Distribution System |
| PWT | Pure Water Test |
| PWV | Pantser Wiel Voertuig |
| PWV | Pulse Wave Velocity |
| PWW | Planar Wing Weapon |
| PX | Post Exchange |
| PXH | Phoenix Hawk |
| PXO | Prospective Executive Officer |
| PXS | Project Executive System |
| PY | Prior Year |
| PYQ-3 | COUNTER- INTELLIGENCE/ HUMAN INTELLIGENCE AUTOMATED TOOL SET |
| PZ | Pickup Zone |