| Acronym | Meaning |
 | RRN | Recurrence Rate Number |
| ECS | Emergency Contact System - Enhanced Chip Set (computing) - EOSDIS Core System - Extended Chip Set (computing) |
| NOW | National Organization For Women |
| SASOL | Suid Afrikaanse Steenkool En Olie (Afrikaans |
| SOM | Somali Language (ISO 639-2 Code) |
| CI | Chile (FIPS 10-4 Country Code) - C?te D'Ivoire (ISO 3166 Digram) -Counter-Intelligence |
| PANS | Pretty Advanced/Awesome Network Services (cf. POTS) |
| G9 | Assistant Chief-of-Staff |
| AANEAS | Anglo-Australian Near-Earth Asteroid Survey |
| QDR | Quadrennial Defense Review |
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