| AAS | Acid Addition System |
|---|---|
| ACT | Additional Centre Tank |
| ADD | Addition (skr.) |
| ADDISIONIZMUS | klinické prejavy podobné Addisonovej chorobe |
| ADK | Additional Decryption Key |
| CASA | Center on Addiction and Substance Abuse |
| EAL | English as an additional language (skr.) |