| Abbreviation | Definition |
|---|---|
| BFLD | Business Foreign Languages Department |
| BFLP | Bennett Foreign Language Program |
| BFLP | Burnaby French Language Playschool |
| BFLP | Burnaby French Language Preschool |
| BGK | Background Knowledge |
| BGTW | British Guild of Travel Writers |
| BIBA | Beijing International Bilingual Academy |
| BILCS | Bespoke Interpreting Language and Communication Services |
| BILCS | Bespoke Interpreting Language Communication Services |
| BILCS | Birmingham Integrated Language and Communication Services |
| BINL | Basic Inventory of Natural Languages |
| BKSL | Ban Khor Sign Language |
| BL | Base Language |
| BL | Beaver Language |
| BL | Body language |
| BLAB | Bilingual Language Acquisition Brains |
| BLAB | Brain Language Acoustic Behavior |
| BLACK | Black Languages Acknowledge Christ's Kindness |
| BLAF | Behavior Language Assessment Form |
| BLC | Berkeley Language Center |