| Abbreviation | Definition |
|---|---|
| AOS | American Oriental Society |
| AOS | American Orthodontic Society |
| AOS | American Otological Society |
| AOS | And Occasionally Soder |
| AOS | Android On Steroids |
| AOS | Animate on scroll |
| AOS | Annunciation Orthodox School |
| AOS | any other score |
| AOS | Application Operating System |
| AOS | Apstra Operating System |
| AOS | Aratrika Online Services |
| AOS | Area of Study |
| AOS | arms of spartan |
| AOS | Army Of Slipknot |
| AOS | Array Of Structures |
| AOS | Array Operations Site |
| AOS | Art is Open Source |
| AOS | Art of Symmetry |
| AOS | Aspherical Optics System |
| AOS | Associate of Occupational Studies |