| Acronym | Meaning |
 | RAP | Radio Access Point - Radiological Assistance Program (U.S. Department Of Energy) - Rear Area Protection - Recognised [Operating/Operational] Air Picture - Recurring Advance Payment - Relational Associative Processor - Reliable Acoustic Path - Rocket-Assis |
| JSP | Joint Services Publication |
| JOR | Jordan (ISO 3166 Trigram) |
| WAP | Wireless Application Protocol |
| MKO | Mojahedin-e-Khalq Organization (Arabic People's Mujahedin Of Iran) |
| MEL | Maya Embedded Language - Michigan Electronic Library |
| LEO | Low Earth Orbit |
| HUN | Hungarian Language (ISO 639-2 Code) |
| AP | Advanced Placement - Air Publication -Armed Forces Pacific (postal Symbol) -Associated Press - Auto Pilot |
| SEATO | Southeast Asian Treaty Organization |
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