| Acronym | Meaning |
| AFW | Auxiliary Feedwater |
| ADISS | Analytical Data Interchange And Storage Standards |
| NATO | North Atlantic Treaty Organization |
| DISN | Defense Information Systems Network |
| IAVCEI | International Association Of Volcanology And Chemistry Of The Earth's Interior |
| ACAP (ACAPS) | Advanced Computer For Array Processing |
| WDC | World Data Center(s) |
| CAST | Council For Agricultural Science And Technology |
| CDFS II | Cloud Depiction And Forecast System |
| MODD | Meteorological And Omega Data Digitizer |