| Acronym | Sense | Language | Topics |
|---|---|---|---|
| EI | Energi Industrien | In German | → Industry, industrial policy → Energy economics |
| EI | Emotional Intelligence | In English | → Psychology |
| EI | Electronics Interface | In English | → Electronics |
| EI | End Item | In English | |
| EI | Engineering Instruction | In English | |
| EI | Entry Interface | In English | |
| EI | Environmental Impact | In English | |
| EI | Événement Indésirable | In French | → Pharmacology, toxicology |