| Acronym | Meaning |
 | SUN | Sundanese Language (ISO 639-2 Code) |
| HIMAD | High To Medium Altitude Air Defence (see Also H/MAD) |
| SO | Shared Object (Unix) - Sheriff's Office - Significant Other -Somalia (ISO 3166 And FIPS 10-4 Country Code Digram) |
| DNR | Do Not Resuscitate |
| PIG | Pipeline Inspection Gauge |
| GWAS | Grand Western Archery Society |
| GK | Gigakelvin - Guernsey (FIPS 10-4 Territory Code) |
| NGIC | National Ground Intelligence Center (Injick) |
| AC | Actinium |
| KEDO | Korean Peninsula Energy Development Organization |
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