| Acronym | Meaning |
 | CISB | Complete In Sealed Box (Internet Auction/trading Listings) |
| ASCAP | American Society Of Composers |
| NSS | (U.S.) Naval Simulation System |
| MNP | Northern Mariana Islands (ISO 3166 Trigram) |
| ATN | Dronning Maud Land (ISO 3166 Trigram; Merged With AQ In 1983) |
| EDA | European Defence Agency |
| BAK | Bashkir Language (ISO 639-2 Code) |
| HVAP | High Velocity Armour Piercing (ammunition) |
| FSS | Fire Support Station |
| SFOR | UN Stabilisation Force (in Bosnia And Herzegovina) |
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