| Acronym | Meaning |
| ISF | International Symposium On Forecasting |
| ABRV | Advanced Ballistic Re-entry Vehicle |
| EL NI-O | The Little Boy |
| PFA | Prime Factor Algorithm |
| IUGS | International Union Of Geological Sciences |
| G-TUF | G-Tunnel Underground Facility |
| DWTF | Decontamination And Waste Treatment Facility |
| CAC | Central Analysis Center (NMC) |
| LINUX | N/A |
| GIPS | Billions Of Instructions Per Second |