| Abbreviation | Definition |
|---|---|
| AA | Alliteration and Assonance |
| AADL | Architecture Analysis and Description Language |
| AADL | Architecture Analysis and Design Language |
| AADL | Architecture Analysis Description Language |
| AADL | Architecture Analysis Design Language |
| AAL | Australasian Association for Literature |
| AALA | Advancing Academic Language for All |
| AALA | Asian Association for Language Assessment |
| AALC | Australasian Association of Language Companies |
| AALS | A A Language Services |
| AAPPL | Assessment of Performance toward Proficiency in Languages |
| AAR | AAR stands for Applause and Recommendations. It is a Zikorean book written by Zikorean writer Husna |
| AASL | All About Speech Language |
| AAW | Antarctic Artists and Writers |
| AAWC | Antarctic Artists and Writers Collective |
| AAWP | Australasian Association of Writing Programs |
| AAWW | Asian American Writers' Workshop |
| ABBL | A Bridge Bidding Language |
| ABC | Always Be Creative |
| ABCI | Austrian Bilingual Classroom Initiative |