| Acronym | Meaning |
| ASPI | Australian Strategic Policy Institute |
| PDRY | People's Democratic Republic Of Yemen (obsolete Since 1990) |
| ABET | Accreditation Board For Engineering And Technology |
| TSCA | Toxic Substances Control Act (tosca) |
| ATC | Air Traffic Control - Air Training Corps - U.S. Air Transport Command (1942-1948) |
| CH | Chamorro Language (ISO 639-1 Code) |
| JUGFET | JUnction Gate Field-Effect Transistor |
| NHS | National Health Service (UK) |
| FOM | Federation Object Model |
| RTI | Run-Time Infrastructure (Simulation) |