| Acronym | Meaning |
 | SPQR | Senatus Populus Que Romanus (Latin The Senate And The People Of Rome) |
| PP | Papua New Guinea (FIPS 10-4 Country Code) -Passage Point - Per Procurationem (Latin |
| DVD | Digital Versatile Disk (was Digital Video Disk) |
| UPU | Universal Postal Union |
| FLAC | Free Lossless Audio Codec. |
| MASH | Mobile Army Surgical Hospital |
| SPST | Single-Pole Single-Throw |
| PLM | Polarized Light Microscope/Microscopy |
| DOT | Department Of Transportation (U.S. Federal Or State) |
| NAV | Navajo Language (ISO 639-2 Code) |
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