| Acronym | Meaning |
 | JK | Jedi Knight - Just Kidding -Spanair (IATA Airline Designator) |
| JFSOCC | Joint Force Special Operations Component Commander |
| JTIDS | Joint Tactical Information Distribution System (djay-tidz) |
| FYROM | Former Yugoslav Republic Of Macedonia |
| SFF | Standard File Format |
| SFE | Supercritical Fluid Extraction - Sydney Futures Exchange |
| KK | Kilokelvin |
| CAF | Central African Republic (ISO 3166 Trigram) -Confederation Of African Football (or French Conf?d?ration Africaine De Football) |
| NEWS | Navy Electronic Warfare Simulator - North |
| GULAG | Glavnoye Upravleniye Ispravitelno-trudovykh LAGerei I Kolonii (Russian ??????? ?????????? ????????????? ???????? ??????? ? ??????? |
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