| AACO | Armenian American Christian Outreach |
|---|---|
| AACO | Asian Americans for Community Outreach |
| AARO | Ann Arbor Reaching Out |
| AFKN | American Forces Korea Network (skr.) |
| AJKA | Andrea (dom.) |
| AMOV | Astronomy Mobile Outreach Vehicle (skr.) |
| APOP | nepriateľ boha slnka rea |
| AREO | plocha, areál, po esperantsky |
| ARES | Adobe Reader Extension Server |
| ARÍN | reaktívny cyklický uhľovodík |