| Acronym | Meaning |
 | ARC | Arc-second Raster Chart - Association For Retarded Citizens - Appalachian Regional Commission |
| SBB | German For The Swiss Federal Railways |
| APM | Advanced Power Management |
| NORTHAG | Northern Army Group |
| PN | Piconewton |
| ODB | Operational Data Base -Oxford Dictionary Of Byzantium |
| GAB | Gabon (ISO 3166 Trigram) |
| BRN | Brunei (ISO 3166 Trigram) |
| CSS | Cascading Style Sheets - Catalina Sky Survey - Central Security Service - Combat Service Support - Confederate States Ship - Content-scrambling System - Cross-site Scripting |
| IWC | International Whaling Commission |
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