| Acronym | Meaning |
| HRD | Human Resource Development |
| PEN | Peruvian Sol (ISO 4217 Currency Code) -PolyEthylene Naphthalate |
| PHA | PolyHydroxyAlkanoate -Potentially Hazardous Asteroid |
| BRASS | Breathe |
| DRL | Daytime Running Lights - Dorman Roberts Ltd. |
| COSCOM | Corps Support Command (military) |
| XBB | European Monetary Unit (E.M.U.; Bonds Market Unit) (ISO 4217 Currency Code) |
| HMCS | Her Majesty's Canadian Ship Or Her Majesty's Courts Service |
| KAU | Kanuri Language (ISO 639-2 Code) |
| PIREPS | Pilot Reports |