English abbreviations from efc to efli
- EFC (equivalent full charge)
- EFCR (equivalent full charge rounds)
- EFD (Electronic flight display)
- EFDD (External Floppy Disk Drive)
- EFE (Early Fuel Evaporation)
- EFELDF (Eagle Forum Education and Legal Defense Fund)
- EFF (Electronic Frontier Foundation)
- EFFA (Equal Footing For Animals)
- EFFC (East Finland Film Commission)
- EFFE (Endowment Fund for Education)
- Effum. (Effectum ("Effect"))
- EFG (Efogi Airport)
- EFH (Earth For Humanity)
- EFI (Extensible Firmware Interface)
- EFIS (Electronic flight instrument system)
- EFK (Newport State Airport)
- EFL (English as a Foreign Language)
- EFLC (Equine Facilitated Learning and Coaching)
- EFLI (Earth Fault Loop Impedance)