| Acronym | Definition |
|---|
| FFIO➣Flexible File Input Output |
| FFIO➣Flanders Foreign Investment Office (Belgium) |
| FFIO➣flexible file input/output |
| FFIO➣Freakin' Figure It Out (polite form) |
| FFIO➣Freiwilligen Feuerwehr Idar Oberstein (German: Volunteer Fire Department Idar-Oberstein; Idar-Oberstein, Germany) |