| Acronym | Meaning |
| COEA | Cost Operational Effectiveness Analysis (military) |
| STC | Superior Temporal Cortex |
| PYG | Paraguayan Guarani (ISO 4217 Currency Code) |
| EU | Europium |
| J7 | Joint Operational Plans & Interoperability Directorate |
| OSS | Office Of Strategic Services (1942?1945 |
| PID | Pelvic Inflammatory Disease -Plan Identification Number - Positive Identification - Procedural Identification -Procurement Identification Description |
| GOSH | Great Ormond Street Hospital |
| DUSD | (U.S.) Deputy Under-Secretary Of Defense |
| EN | Corps Of Engineers -Estonia (FIPS 10-4 Country Code) - Exanewton |