| Acronym | Meaning |
| AAP | Advanced Acquisition Plan - Allied Administrative Publication - American Academy Of Pediatrics |
| XAF | BEAC (Banque Des ?tats De L'Afrique Centrale) Central Africa CFA (Coop?ration Financi?re En Afrique Centrale) Franc (ISO 4217 Currency Code) |
| MSO | Multiple System Operator |
| MRC | Maintenance Requirements Card |
| XX | Twenty (in Roman Numerals) |
| DRAGN | Double Radio Source Active Galactic Nucleus (dragon) |
| BICS | Battlefield Information And Communication System |
| JN | Jan Mayen Island (FIPS 10-4 Territory Code) |
| IB | International Baccalaureate |
| ATG | Antigua And Barbuda (ISO 3166 Trigram) |