| Acronym | Meaning |
| RDECOM | (U.S.) Research |
| USS | United States Ship (sometimes Meaningless; See Star Trek) |
| LRGW | Long-Range Guided Weapon |
| BEL | Belarusian Language (ISO 639-2 Code) |
| PC | Picocoulomb |
| NAAQS | National Ambient Air Quality Standards |
| AHPCRC | Army High Performance Computing Research Center |
| MOD | Ministry Of Defence (United Kingdom) And Various Other Countries |
| KCL | King's College London |
| TCAS | Traffic Collision Avoidance System |