| Acronym | Meaning |
| ZWD | Zimbabwe Dollar (ISO 4217 Currency Code) |
| RRS | Racing Rules Of Sailing |
| PSA | Paralysis Society Of America - Pharmaceutical Society Of Australia - Pressure-Sensitive Adhesive - Production Services Association - Prostate Specific Antigen - Public Service Announcement - Public Service Association |
| RFID | Radio Frequency IDentification |
| C2D OR C?D | Intel Core 2 Duo - CERDEC Command And Control Directorate |
| LNER | London And North Eastern Railway |
| EPO | Esperanto Language (ISO 639-2 Code) |
| DOHC | Dual-OverHead-Cam Engine |
| SSG | Guided Missile Submarine (retired US Navy Hull Classification) |
| JSIMS | Joint Simulation System |