| Abbreviation | Definition |
|---|---|
| ENEP | European Network of Environmental Professionals |
| ENF | ENForcement Action |
| ENF | Environmental Notification Form |
| ENI | Environmental Network International |
| ENMM | Environmental Nanotechnology Monitoring and Management |
| EnMS | Energy Management System |
| ENR | Environmental and Natural Resources |
| ENRE | Environmental and Natural Resource Economics |
| ENRM | Environmental and Natural Resource Management |
| ENS | Environmental News Service |
| ENTF | Environmental Trust Fund |
| ENV | Environment |
| ENVIR | Environmental |
| ENVIRONMENT | Environmental |
| ENVIRONMENTAL | environmentally |
| ENVIS | Environmental Information System |
| EO | Environmentally Optimised |
| EOAM | Environmental Outcomes Assessment Methodology |
| EOCA | European Outdoor Conservation Association |
| EOEB | Expert Opinion on Environmental Biology |