| Acronym | Meaning |
 | RSPCA | Royal Society For The Prevention Of Cruelty To Animals |
| ACOG | American College Of Obstetricians And Gynecologists |
| ASIO | Australian Security Intelligence Organisation -Audio Stream Input Output |
| IMU | International Mathematical Union |
| PB | PolyButylene |
| WU | Wabash University - Washington University In St. Louis - Western Union - Windows Update - Work Unit - WU Wien (German Wirtschaftsuniversit?t Wien |
| AET. | Aetatis (Latin |
| MKD | Macedonian Language (ISO 639-2 Code) |
| A/D | Analog/Digital |
| PTAN | Precision Terrain Aided Navigation |
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