| Abbreviation | Definition |
|---|---|
| ABCL | Actor-Based Concurrent Language |
| ABCL | Audio Barix Control Language |
| ABLC | Affect Based Language Curriculum |
| ABLS | Accreditation Body for Language Services |
| ABSL | Al-Sayyid Bedouin Sign Language |
| ACCL | Association of Chinese and Comparative Literature |
| ACCL | Association of Chinese Comparative Literature |
| ACDL | Asynchronous Circuit Design Language |
| ACELP | American Center English Language Program |
| ACFL | Asian Center for Foreign Languages |
| ACL | Application Computer Language |
| ACL | Audit Control Language |
| ACLALS | Association for Commonwealth Literature and Langue studies |
| ACLALS | Association of Commonwealth Literature and Language Studies |
| ACLAR | Australasian Children's Literature Association for Research |
| ACLC | Amsterdam Center for Language and Communication |
| ACLE | ARM C Language Extensions |
| ACLI | Advanced Critical Language Institute |
| ACLI | American Culture and Language Institute |
| ACLL | Asian Conference on Language Learning |