| Abbreviation | Definition |
|---|---|
| ECES | Expeditionary Civil Engineer Squadron |
| ECNE | Enterprise Certified Netware Engineer |
| ECO | Electronic Commerce Operator |
| ECO | Equipment Control Officer |
| ECOE | Engineer Center Of Excellence |
| ECOP | Engineer Common Operating Picture |
| ECOS | Education And Career Opportunities System |
| ECP | Emergency Care Practitioner |
| ECR | Electronic Commerce Representative |
| ECSS | European Cluster Sourcing Specialist |
| ECT | Elementary Computer Technologist |
| ECVP | Engineer's Club of the Virginia Peninsula |
| ED | Earnings Difference |
| ED | EDitor |
| ED | Enterprise Director |
| ED | Entertainment Director |
| ED | Environmental Director |
| ED | Erotic Dancer |
| EDA | Engineer's Duties and Aurthority |
| EDAS | Executive Director for Administrative Services |