| Acronym | Meaning |
| FJ | Femtojoule |
| LUG | Linux User Group |
| SDSS | Sloan Digital Sky Survey |
| NCAR | U.S. National Center For Atmospheric Research |
| LAN | Local Area Network |
| SN | Senegal (ISO 3166 Digram) - Singapore (FIPS 10-4 Country Code) - Snow (METAR Code) - SuperNova-Screen Name |
| IG | Igbo Language (ISO 639-1 Code) |
| TIGER | Topologically Integrated Geographic Encoding And Referencing System |
| CCP | Casualty Collection Point - Communications Checkpoint - Contingency Communications Package |
| ASCII | American Standard Code For Information Interchange |