| Acronym | Meaning |
| ATO | Air Tasking Order - Australian Taxation Office |
| VISCII | VIetnamese Standard Code For Information Interchange |
| ICRS | International Celestial Reference System |
| SIG | .signature (UNIX Shell/Internet Standard File Name) -Special Interest Group |
| UMBC | University Of Maryland Baltimore County |
| REME | Royal Electrical And Mechanical Engineers |
| LTZ | Luxembourgish Language (ISO 639-2 Code) |
| LRAS3 OR LRAS? | Long Range Advanced Scout Sensor Suite |
| SNU | Solar Neutrino Unit |
| MILSET | Mouvement International Pour Le Loisir Scientifique Et Technique (French |