| Acronym | Meaning |
| OPCON | Operational Control |
| MPMC | Medial PreMotor Cortex |
| IHO | International Hydrographic Organization |
| R2I | Resistance To Interrogation |
| MIDS | Multi-Function Information Distribution System |
| MSB | Main Support Battalion - Most Significant Bit (or Byte) |
| TN | Tswana Language (ISO 639-1 Code) |
| MATREX | Modeling Architecture For Technology |
| ETF | Emergency Task Force (a Special Police Unit |
| PIM | Parameterized Ionospheric Model - Path Of Intended Motion - Pediatric Index Of Mortality - Personal Information Manager/Management - Presence And Interworking Mobility - Processor-In-Memory - Program Integration Manager - Protocol Independent Multicast |