| Abbreviation | Definition |
|---|---|
| EIES | Electronic Information Exchange System |
| EIET | Electronics and Instrumentation Engineering Technology |
| EIF | Electric Island Festival |
| EIFU | electronic instructions for use |
| EII | Electron Impact Ionization |
| EIMN | Electrical Impedance Matching Network |
| EIMS | Electronic Information Management System |
| EIMWT | Electrical Installation and Maintenance Work Trade |
| EIN | Equivalent Input Noise |
| EIO | Electronic Industry Outlook |
| EIO | Electronic Inventory Online |
| EIO | Extended Interaction Oscillator |
| EIOT | Environment of Internet Of Things |
| EIP | Electronic Inertial Power |
| EIP | Electronic Information Product |
| EIP | Electronic Invoicing and Payment |
| EIP | Equipment Improvement Program |
| EIP | Equipment Improvement Project |
| EIP | Ethernet Interface Processor |
| EIPO | Electronic Indian Postal Order |