| Acronym | Meaning |
| SDN | Sudan (ISO 3166 Trigram) |
| SARS | Severe Acute Respiratory Syndrome |
| GOYADIN | Get Off Your Arse |
| FLET | Forward Line Of Enemy Troops |
| MIA | Missing In Action |
| MSH | Medium Support Helicopter - Mount Saint Helens |
| DARO | (U.S.) Defense Airborne Reconnaissance Office |
| INSAR | Interferometric Synthetic Aperture Radar |
| IR | Iridium |
| BC | Before Christ - Blind Copy (in Emailers) - Boston College -Botswana (FIPS 10-4 Country Code; From Bechuanaland) - British Columbia (postal Symbol) |