| fotografo | photographer |
| fotogrammetria | photogrammetry |
| fotoincisione | photogravure |
| Fotoionizzazione | Photoionization |
| Fotoisomerizzazione | Photoisomerization |
| Fotolisi | Photodissociation |
| fotolitografia | photolithography |
| Fotometri ad alta velocità | High speed photometers |
| Fotometri fotoelettrici | Photoelectric photometers |
| Fotometria a banda larga | Broad band photometry |
| Fotometria a banda media | Medium band photometry |
| Fotometria a banda stretta | Narrow band photometry |
| Fotometria a due colori | Two color photometry |
| Fotometria a quattro colori | Four color photometry |
| Fotometria a tre colori | Three color photometry |
| Fotometria BV | BV photometry |
| Fotometria Cape | Cape photometry |
| Fotometria Cape RI | Cape RI photometry |
| Fotometria CCD | CCD photometry |
| Fotometria con filtri | Filter photometry |
| Fotometria DDO | DDO photometry |
| Fotometria di Ginevra | Geneva photometry |
| Fotometria di Johnson | Johnson photometry |
| Fotometria di Stromgren | Stromgren photometry |
| Fotometria di Vilnius | Vilnius photometry |
| Fotometria di Walraven | Walraven photometry |
| Fotometria fotoelettrica | Photoelectric photometry |
| Fotometria fotografica | Photographic photometry |
| Fotometria H Alfa | H Alpha photometry |
| Fotometria H Beta | H Beta photometry |
| Fotometria infrarossa | Infrared photometry |
| Fotometria multicolore | Multicolor photometry |
| Fotometria RGU | RGU photometry |
| Fotometria superficiale | Area photometry |
| Fotometria UBV | UBV photometry |
| Fotometria UBVGRI | UBVGRI photometry |
| Fotometria UBVRI | UBVRI photometry |
| Fotometria UBVRIJKL | UBVRIJKL photometry |
| Fotometria UCBV | UCBV photometry |
| Fotometria ultravioletta | Ultraviolet photometry |
| Fotometria VBLUW | VBLUW photometry |
| fotometro | photometer |
| Fotomoltiplicatori | Photomultiplier tubes |
| Foton | Foton |
| fotone | photon |
| Fotoni | Photon |
| Fotonica | Photonics |
| Fotoresistori | Photoconductive cells |
| fotosensibile | photosensitive |
| Fotosfera | Photosphere |
| fotosintesi | photosynthesis |
| Fotosintesi CAM | Crassulacean acid metabolism |
| Fotosintesi clorofilliana | Photosynthesis |
| Fotosistema | Photosystem |
| Fototerapia | Light therapy |
| fototipìa | heliography |
| Fototrofia | Phototroph |
| fottere | fuck |
| fottiti | fuck you |
| Fouad Siniora | Fouad Siniora |
| Foucault | Foucault |
| fougasse | fougasse |
| Fougères | Fougères |
| Fouillouse | Fouillouse |
| Fouju | Fouju |
| Founex | Founex |
| Fouquières-lès-Béthune | Fouquières-lès-Béthune |
| Four | Bomb |
| Four Brothers | Four Brothers |
| Four Color Comics | Four Color |
| Four Corners | Four Corners |
| Four Rooms | Four Rooms |
| Four Seasons Hotels and Resorts | Four Seasons Hotels and Resorts |
| Fourcès | Fourcès |
| Fourier | Fourier |
| Fourqueux | Fourqueux |
| Fourth Division | Football League Fourth Division |
| Fox | Fox Broadcasting Company |
| Fox Broadcasting Company | Fox Broadcasting Company |
| Fox Life | Fox Life |
| Fox Mulder | Fox Mulder |
| fox-terrier | fox terrier |
| fox-trot | fox trot |
| foxhound | foxhound |
| FOY | Foy |
| Foyle | River Foyle |
| Fozio I di Costantinopoli | Patriarch Photios I of Constantinople |
| FP | CR |
| FQDN | Fully qualified domain name |
| fra | among |
| Fra Bartolomeo | Fra Bartolomeo |
| Fra cui | Amond other things |
| fra di loro | together |
| Fra Martino | Frère Jacques |
| fra una cosa e l'altra | between times |
