| Acronym | Meaning |
| FF | Fula Language (ISO 639-1 Code) |
| FMTV | Family Of Medium Tactical Vehicles |
| SIDS | Sudden Instant Death Syndrome |
| ECJ | European Court Of Justice |
| TJK | Tajikistan (ISO 3166 Trigram) |
| ATAC | Air Transportable Acoustic Communications |
| POD | Plain Old Documentation |
| COS | Cooper Ornithological Society |
| F.K.A. OR F/K/A | Formerly Known As |
| CSC | Closed Spacelike Curve (relativity) - Computer Security Centre |