| Acronym | Meaning |
 | VII | 7 (in Roman Numerals) |
| FSF | Free Software Foundation |
| OBS | Observation/Observer - Obsolete - Obstacle -Off Balance Sheet - Optical Burst Switching (IEEE) - Organic Brain Syndrome - Organization(al) Breakdown Structure |
| OTOH | On The Other Hand |
| FE | Iron (Latin Ferrum) |
| PYF | French Polynesia (ISO 3166 Trigram) |
| PNH | Paroxysmal Nocturnal Hemoglobinuria - Police Nationale D'Ha?ti (French |
| SCSI | Small Computer System Interface (scuzzy) -Strategic And Combat Studies Institute |
| FDC | Federal Detention Center (U.S.) - Fire Direction Centre |
| DFSP | Dermatofibrosarcoma Protuberans |
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