| Abbreviation | Definition |
|---|---|
| PRU | Primary Reporting Unit |
| PRV | Pressure Release Valve |
| PRV | Private |
| PRZ | Prize |
| PS | Packet Switch |
| PS | Parallel Track Single-Unit |
| PS | Patient Suffer |
| PS | peer support |
| PS | Personnel Services |
| PS | Physical Strength |
| PS | Piercing Slashing |
| PS | Pole Smoker |
| PS | Post Script |
| PS | Power Supply |
| PS | Processing Subsystem |
| PS/HD | Port Security/harbor Defense |
| PSA | Port Support Activity |
| PSA | Post Shakedown Availability |
| PSA | Pressure Swing Absorption |
| PSA | Problem Statement Analyzer |