| Acronym | Meaning |
| OPS | Operations |
| B | Bel - Boron |
| ALOC | Air Lines Of Communication |
| ROH | Ring Of Honor |
| ARDA | Advanced Research And Development Activity (became DTO 2006) |
| MIDS | Multi-Function Information Distribution System |
| HVU | High Value Unit (military) |
| HFE | Human Fertilisation And Embryology (UK Act) |
| S&TCD | CERDEC Space And Terrestrial Communications Directorate |
| DIMM | Dual In-line Memory Module (computing) |