| Acronym | Meaning |
 | SPQR | Senatus Populus Que Romanus (Latin The Senate And The People Of Rome) |
| AIRFA | American Indian Religious Freedom Act |
| BRASS | Breathe |
| JAM | Jamaica (ISO 3166 Trigram) |
| LIM | Limburgish Language (ISO 639-2 Code) |
| HRM | His (or Her) Royal Majesty |
| HQ | HeadQuarters -Howland Island (FIPS 10-4 Territory Code) |
| PDG | President Director General - Product Development Group |
| CPR | Canadian Pacific Railway - CardioPulmonary Resuscitation |
| NAVSPASUR | U.S. Naval Space Surveillance System |
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