| Acronym | Meaning |
 | PP | Papua New Guinea (FIPS 10-4 Country Code) -Passage Point - Per Procurationem (Latin |
| SGS | South Georgia And The South Sandwich Islands (ISO 3166 Trigram) -Svalbard Ground Station (Landsat) - Soci?t? G?n?rale De Surveillance |
| PGM | Precision-Guided Munition |
| RMS | Rate-Monotonic Scheduling - Richard M. Stallman - Root-Mean-Square - Royal Mail Ship (e.g. RMS Titanic) |
| DREA | Defence Research Establishment Atlantic (obsolete 2002) |
| SL | Sierra Leone (ISO 3166 And FIPS 10-4 Country Code Digram) -Start Line |
| TCAS | Traffic Collision Avoidance System |
| TAAR | Trace Amine-Associated Receptor |
| HSSI | High-Speed Serial Interface |
| BDU | Battle-Dress Uniform |
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