| Acronym | Meaning |
| CUPE | Canadian Union Of Public Employees (CUE-pee) |
| UDTS | Uppsala-DLR Trojan Survey |
| PD | Per Diem (Latin: (calculated) By The Day) - Point Of Departure - Police Department - Postal District - Potential Difference - Principal Deputy - Public Domain |
| IZ | Iraq (FIPS 10-4 Country Code) |
| MDA | Main Defensive Action/Area -Moldova (ISO 3166 Trigram) - Muscular Dystrophy Association |
| KSM | Korean Service Medal |
| BRIC | Brazil |
| DRI | Detection |
| AOU | American Ornithologists' Union |
| DBBL | (U.S. Army Simulation Center) Dismounted Battlespace Battle Laboratory |