| Acronym | Meaning |
| CESS | Centre For Earth Science Studies (India) |
| REEF | Reef Environmental Education Foundation |
| DMU | Diesel Multiple Unit - A Method Of Connecting Self-propelled Railway Vehicles Together To Form A Train Under The Control Of One Driver. |
| IDL | Interface Definition Language |
| PTAL | Public Transport Accessibility Level |
| SET | Staphylococcal EnteroToxin |
| URD | User Requirements Document |
| UNICEF | United Nations Children's Fund (originally The United Nations International Children's Emergency Fund) |
| CWRU | Case Western Reserve University |
| MLHW | Mean Lower High Water (nautical Charts) |