| Acronym | Meaning |
| RADB | Real America Database - Resource Assessment Database - Reunion Address DataBase - Rice Allelopathy Data Base - Routing Arbiter Data Base |
| NASA | National Aeronautics And Space Administration |
| MLC | Member Of The Legislative Council (in India) |
| SAARC | South Asian Association For Regional Cooperation |
| AK | Attokelvin |
| MHWN | Mean High Water Neaps (nautical Charts) |
| OSL | Open Source License - Optically Stimulated Luminescence - Orbiting Solar Laboratory |
| CINC | Commander In Chief |
| USEC | United States Enrichment Corporation |
| SIC | Standard Industrial Classification |