| Acronym | Meaning |
 | UNOSOM | United Nations Operations In Somalia |
| PID | Pelvic Inflammatory Disease -Plan Identification Number - Positive Identification - Procedural Identification -Procurement Identification Description |
| SW | Swahili Language (ISO 639-1 Code) |
| ASDIC | Allied Submarine Detection Investigation Committee (Sonar) |
| SB | Solomon Islands (ISO 3166 Digram) |
| TMT | Thirty Meter Telescope |
| QR | Quake Rally - Qualitative Reasoning - Queensland Rail - Queen's Rangers - Quick Release - Quiet Riot -Qatar Airways (IATA Airline Designator) |
| GZK | Greisen-Zatsepin-Kuzmin Cut-off (cosmic Ray Energies) |
| IE | Interlingue Language (ISO 639-1 Code) |
| A4 | Many |
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