| Abbreviation | Definition |
|---|---|
| IELTS | International English Language Test System |
| IELTS | International English Language Testing Service |
| IELTS | International English Language Testing Systems |
| IESL | Intensive English as a Second Language |
| IFLO | International French Language Olympiad |
| IFML | Interaction Flow Modeling Language |
| IFML | Interactive Fiction Markup Language |
| IGAI | Ibn Ghazi Arabic Institute |
| IGL | Interactive Graphics Language |
| IIALC | International Inst of African Languages and Cultures |
| IILT | Integrate Ireland Language and Training |
| IISPL | Indian Institute of Software Programming Language |
| IJ | interjection |
| IJAL | International Journal of Art and Literature |
| IJELT | Indonesian Journal of English Language Teaching |
| IJLA | International Journal of Language Academy |
| IJLA | International Journal of Literature and Arts |
| IJLC | Intensive Japanese Language Course |
| IJLI | Iranian Journal of Language Issues |
| IJLL | Interdisciplinary Journal of Literature and Language |