F4 Inmarsat-4A F4 CN 90 F4 (meriam 90 mm) Kejuaraan F4 Jepang F4 Thailand: Boys Over Flowers Formula 4 Britania Raya Formula 4 Italia Plutonium tetrafluorida Amerisium(IV) fluorida Terbium(IV) fluorida Serium(IV) fluorida Neptunium(IV) fluorida Praseodimium(IV) fluorida Kurium(IV) fluorida Torium tetrafluorida Kripton tetrafluorida Einsteinium tetrafluorida Penggerak 4 roda Berkelium tetrafluorida