| Subject | Finnish | English |
| transp., engl. | FAST-A-WAY | FAST-A-WAY |
| commun. | Fast Ethernet | fast Ethernet |
| commun., engl. | Fast Ethernet Alliance | Fast Ethernet Alliance |
| comp., MS | fast fusion | Fast Fusion (One of the music genres that appears under Genre classification in Windows Media Player library. Based on ID3 standard tagging format for MP3 audio files. Winamp genre ID 84) |
| comp., MS | Fast Page Mode DRAM | fast page mode DRAM (An older form of DRAM, used in personal computers before EDO RAM was introduced, with typical clock timings of 6-3-3-3) |
| law, interntl.trade. | fast track -valtuudet | fast track |