English abbreviations from effe to efrc
- 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)
- EFM (Explosives Factory Maribyrnong)
- EFMA (Evangelical Fellowship of Mission Agencies)
- EFMD (European Foundation for Management Development)
- EFMP (Exceptional Family Member Program)
- EFO (Electronic Flame-Off)
- EFOA (European Fuel Oxygenates Association)
- EFOCS (Evanescent Fiber Optic Chemical Sensor)
- E-FOGM (Enhanced Fiber Optic Guided Missile)
- EFOG-M (Enhanced Fiber Optic Guided Missile)
- EFP (Expanded Feasibility Phase)
- EFR (Engineering Factual Report)
- EFRA (Education Funding Reform Act of 2005)
- EFRB (Educational Facility Revenue Bond)
- EFRC (Exceptional Family Resource Center)