| Acronym | Meaning |
| XMSF | EXtensible Modelling And Simulation Framework |
| AVCATT | A -(U.S. Army's) Aviation Combed Arms Tactical Trainer-Aviation [Reconfigurable Manned Simulator] |
| NR | Southern Ndebele Language (ISO 639-1 Code) |
| USD(P&R) | (U.S.) Under-Secretary Of Defense (Personnel & Readiness) |
| BT | Baronet; (ii) Bacillus Thuringiensis |
| DRA | Defence Research Agency (UK |
| CHAOS | Cambridge Heart Anti-Oxydant Study |
| 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 |
| SSE | South South-East -Streaming SIMD Extensions |
| DITY | Do-It-Yourself |