| Acronym | Meaning |
| KMF | Comoro Franc (ISO 4217 Currency Code) |
| WM | Wehrmacht Marine (German WW2 Navy Vehicle Licence Plate Code) |
| DBS | Direct Broadcast Services (television) |
| MBTA | Massachusetts Bay Transportation Authority - Migratory Bird Treaty Act (U.S.) |
| C4ISR OR C?ISR | Command |
| NUWC | U.S. Naval Undersea Warfare Center |
| PERL | Usually Lower Case Practical Extraction And Report Language |
| SD | Sheriff's Department - Smoke/Decontamination-South Dakota (postal Symbol) - Sudan (ISO 3166 Digram) |
| NIU | Niue (ISO 3166 Trigram) |
| BFA | Burkina Faso (ISO 3166 Trigram) |