| AAE | American Association of Engineers (skr.) |
|---|---|
| AAM | Anti Aging Medicine |
| AAR | Alliance for Aging Research |
| AAS | Aging and Adult Services |
| ABE | Assistant Brigade Engineer |
| ADE | Assistant Division Engineer |
| ADM | ad marginam (skr.) |
| AEA | Aircraft Engineers Association |
| AEM | Advanced Engine Management |
| AES | Audio Engineering Society |