EI
| Abbreviation | Meaning | Tamil Meaning | Category |
|---|---|---|---|
| EI | Electron Impact | - | Computer Acronyms(common) |
| EI | Emissions Inventory | - | Computer Acronyms(common) |
| EI | Eating In - Intravenous Feeding | - | NASA |
| EI | Entry Interface | - | Organizations |
| EI | Exbi | - | Astronomy |
| EI | Ireland (FIPS 10-4 Country Code; From Âire) | - | Astronomy |
| EI | Electron Ionization | - | Business and Finance |