| Abbreviation | Definition |
|---|---|
| BLC | Bristol Language Centre |
| BLCC | Business Language and Communication Center |
| BLCC | Business Language and Communication Centre |
| BLCI | Beijing Language Culture Institute |
| BLCU | Beijing Language and Culture University |
| BLF | Bangalore Literature Festival |
| BLF | Bibles and Literature in French |
| BLF | Bibles Literature in French |
| BLINK | Body Language Intuition Numinology Know |
| BLL | Bilingual Language Laboratory |
| BLLDB | Bibliography of Linguistic Literature DataBase |
| BLN | Buckeye Language Network |
| BLOB | Basic Language Object Border |
| BLP | Bilingual Language Profile |
| BLR | Binary Language Representation |
| BLRI | Brain and Language Research Institute |
| BLTI | Business Language Training Institute |
| BLTS | Broadband Language Training System |
| BML | Bean Markup Language |
| BML | Better Markup Language |