| Acronym | Meaning |
| GUJ | Gujarati Language (ISO 639-2 Code) |
| IRL | Ireland (ISO 3166 Trigram) - Industrial Research Limited |
| 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 |
| WSJ | Wall Street Journal |
| JCS | Joint Chiefs Of Staff |
| EUCOM | (U.S.) European Command |
| CIB | Complete In Box (Internet Auction/trading Listings) |
| MCDL | Model Composition Definition Language |
| MB | Manitoba (postal Symbol) - Martinique (FIPS 10-4 Territory Code) |
| XMSF | EXtensible Modelling And Simulation Framework |