| Abbreviation | Definition |
|---|---|
| AOA | Age Of Apocalypse |
| AOC | All-Out Chaos |
| AOD | Alliance Of Darkness |
| AOD | Alliance Of Destruction |
| AOD | Angel Of Death |
| AOD | Army Of Darkness |
| AOE | Age Of Empires |
| AOE | Armageddon Of Eden |
| AOG | Age Of Gargoyles |
| AOH | Angels Of Hell |
| AOH | Avengers Of Heaven |
| AOM | The Age Of Mortals |
| AOS | Agent Of Starfleet |
| AOTC | Attack Of The Clones |
| APB | Apocalyptic Prophecy Brigade |
| APOE | Annoying People Off the Earth |
| APRU | Anomalistic Psychology Research Unit |
| APWAN | A Place Without A Name |
| AQSG | Alpha Quadrant Sim Group |
| ARC | Advanced Recon Commando |