| Acronym | Meaning |
| YC | Yottacoulomb |
| PSV | Philips Sport Vereniging (Dutch For Philips Sports Union) - Public Service Vehicle |
| DMU | Diesel Multiple Unit - A Method Of Connecting Self-propelled Railway Vehicles Together To Form A Train Under The Control Of One Driver. |
| CIWS | Close-In Weapon System |
| XHO | Xhosa Language (ISO 639-2 Code) |
| MSLP | Mean Sea Level Pressure |
| YMMV | Your Mileage May Vary |
| UR | Urdu Language (ISO 639-1 Code) |
| AADT | Annual Average Daily Traffic Flow |
| SHOALS | Scanning Hydrographic Operational Airborne Lidar Survey |