| Abbreviation | Definition |
|---|---|
| CERIL | Coalition for the Equitable Representation of Indigenous Languages |
| CESL | Center for English as a Second Language |
| CESL | Center for English as Second Language |
| CEWL | Centre for English and World Languages |
| CFAE | Centre for Academic English |
| CFLS | Canadian Forces Language School |
| CFLS | Centre for Foreign Language Study |
| CFML | Cold Fusion Markup Language |
| CGEL | Cambridge Grammar of the English Language |
| CGEL | Comprehensive Grammar of the English Language |
| CGUL | Custom Grouper User Language |
| CGWF | Contemporary German Writers and Filmmakers |
| CHILL | Constructive Heuristics Induction for Language Learning |
| CHLT | Center for Human Language Technology |
| CHLT | Cultural Heritage Language Technologies |
| CIA | Creative Inspiring Activities |
| CIIL | Central Institute of Indian Languages |
| CIL | C Intermediate Language |
| CIL | Church Intermediate Language |
| CIL | Common integration language |