| Acronym | Meaning |
 | UNDE | Union Of National Defence Employees (Canada) |
| PDT | Pacific Daylight [Saving] Time (UTC-7 Hours) |
| RPG | (US-CA) Regional Planning Group - Report Program Generator - Rocket Projectile Gun - Rocket-Propelled Grenade - Role-Playing Game |
| SGP | Singapore (ISO 3166 Trigram) |
| DOA | Dead On Arrival - Dead Or Alive |
| ADP | Adenosine DiPhosphate - Army Doctrine Publication (UK |
| IY | Iraqi-Saudi Neutral Zone (FIPS 10-4 Territory Code; Obsolete 1993) |
| SECDEF | (U.S.) Secretary Of Defense |
| SOL | S**t Out Of Luck |
| LT | Lithuanian Language (ISO 639-1 Code) |
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