| Abbreviation | Definition |
|---|---|
| EWIR | Electronic Writer In Residence |
| EWIS | Electrical Wiring Interconnect System |
| EWIS | Electrical Wiring Interconnection Systems |
| EWL | Electronic Wait List |
| EWLC | Electric Water Level Controls |
| EWLC | Electrical Water Level Control |
| EWLC | Electronic Water Level Controller |
| EWM | Electronic Working Methods |
| EWMA | Exponentially Weighted Moving Average |
| EWO | electronic work order |
| EWOM | Electronic Word-Of-Mouth |
| EWOT | Electronic Word Of Thing |
| EWP | electronic Work Package |
| EWR | Electronic Warehouse Receipt |
| EWR | Electronic Warfare Range |
| EWRA | Electronic Waste Recycling Act |
| EWRD | Electronic Warfare and Radar Division |
| EWRF | Electronic Waste Recycling Fee |
| EWS | Electronic Watchdog System |
| EWSG | Electronic Warfare Scenario Generator |