- IEF
- Isoelectric Focusing (Academic & Science)* Instituto de Estudios Fiscales (International » Spanish)* Initial Entry Force (Governmental » Military)* Industrial Environmental Forum (Computing » Software)* Imaging Energy Filter (Academic & Science » Electronics)* Igni Et Ferro (International » Latin)* Image Exchange Format Bitmap graphics (Computing » File Extensions)* International Expeditionary Force (Governmental » Military)* International Expeditionary Force (Governmental » US Government)
Abbreviations dictionary. 2012.