| Acronym | Meaning |
| BTID | Battlefield Target Identification Device |
| RG | Roentgenium |
| RTFM | Read The Fucking/Fine Manual |
| LDMOS | Lateral Double-diffused MOS Transistor (ell-dee-moss) |
| FES | Flywheel Energy Storage |
| PETE | PolyEthyleneTErephthalate |
| ROU | Romania (ISO 3166 Trigram) |
| AAAS | American Association For The Advancement Of Science |
| AIC | African Independent Church |
| HCCI | Homogeneous Charge Compression Ignition |