| Subject | English | Finnish |
| mech.eng. | automatic fast return | pikapaluuliike |
| transp., nautic., fish.farm. | breast fast | poikittaisköysi |
| industr., construct. | colour fast | värinpitävä |
| environ. | control of fast flowing streams | tulvapatojen rakentaminen |
| comp., MS | Exchange Fast Access | Exchange-pikakäyttö (A feature that enables Exchange users to see new email messages and up-to-date calendar items as soon as they open Outlook, without waiting for it to finish synchronizing) |
| comp., MS | fail fast exception | nopean virheraportoinnin poikkeus (An exception that cannot be caught by any exception handler and that immediately causes the application to terminate and launch error reporting) |
| commun. | fast ACCH | FACCH-kanava |
| commun. | fast associated control channel | FACCH-kanava |
| transp., engl. | FAST-A-WAY | FAST-A-WAY |
| R&D., energ.ind., nucl.phys. | fast-breeder reactor | hyötöreaktori |
| comp., MS | fast card | pikakortti (An NFC-enabled card (like a credit card) that users can use for payments or other transactions even when the phone is locked) |
| el. | fast circuit switch | nopea kytkin |
| industr., construct. | fast colour | aitoväri |
| industr., construct. | fast colour | kestoväri |
| industr., construct. | fast colour | valonkestävä väri |
| IT | fast-connect circuit switching | nopea piirikytkentä |
| el. | fast crosstalk | nopea ylikuuluminen |
| industr., construct., chem. | fast cycle control | vaiheenleikkaussäätö |
| earth.sc., el. | fast electron | nopea elektroni |
| earth.sc., el. | fast electron | kevyt elektroni |
| commun. | fast Ethernet | Fast Ethernet |
| commun., engl. | Fast Ethernet Alliance | Fast Ethernet Alliance |
| market. | fast expansion strategy | nopean laajentumisen strategia |
| gen. | fast fission | nopeiden neutronien aiheuttama fissio |
| gen. | fast fission | nopea fissio |
| earth.sc. | fast fission effect factor | nopean fission kerroin |
| earth.sc. | fast fission factor | nopean fission kerroin |
| el. | fast forward | pikakelaus eteenpäin |
| comp., MS | fast forward | Siirry eteenpäin (To advance audio or video playback at a speed that is faster than normal) |
| el. | fast forward movement | pikakelaus eteenpäin |
| math. | fast Fourier transform | nopea Fourier-muunnos |
| commun., el. | fast Fourier transform analyser | FFT-analysaattori |
| commun., el. | fast Fourier transform analyser | nopea Fourier-muunnos-analysaattori |
| commun., el. | fast Fourier transform analyzer | FFT-analysaattori |
| commun., el. | fast Fourier transform analyzer | nopea Fourier-muunnos-analysaattori |
| nat.sc., industr. | fast Fourier transform processor | FFT-prosessori |
| IT | fast Fourier transformation | nopea Fourier-muunnos |
| 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) |
| el. | fast groove | jyrkkänousuinen ura |
| nat.sc., agric. | fast growing | nopeakasvuinen |
| forestr. | fast growing | nopeasti kasvava |
| el. | fast hole | nopea aukko |
| el. | fast hole | kevyt aukko |
| life.sc. | fast ice | kiintojää |
| earth.sc. | fast-ice boundary | kiintojään raja |
| life.sc. | fast-ice edge | kiintojään reuna |
| transp., mech.eng. | fast idle | nopea tyhjäkäynti |
| agric. | fast-milking | nopealypsyinen |
| health. | "fast" mode | nopea aikapainotus |
| el. | fast motion | nopeutettu liike |
| commer. | fast-moving consumer goods | nopeakiertoiset kulutustavarat |
| earth.sc. | fast multiplication factor | nopean fission kerroin |
| phys.sc., nucl.phys. | fast neutron | nopea neutroni |
| nucl.phys., nucl.pow. | fast neutron reactor | nopean neutronispektrin reaktori |
| gen. | fast neutron reactor | nopea reaktori |
| el. | fast packet | nopea paketti |
| el. | fast packet switch | nopea pakettikytkin |
| 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) |
| commun., IT | fast path | oikopolku |
| el. | fast phase-interference fading | nopea vaiheinterferenssihäipyminen |
| earth.sc. | fast plasma | nopea plasma |
| mech.eng. | fast pulley | kiintopyörä |
| agric., el. | fast pyrolysis | flash-pyrolyysi |
| environ. | fast reactor Nuclear reactor which produces more fissile material than it consumes, using fast-moving neutrons and making plutonium-239 from uranium-238, thereby increasing the reactor's efficiency | nopea reaktori |
| nucl.phys., nucl.pow. | fast reactor | nopean neutronispektrin reaktori |
| gen. | fast reactor | nopea reaktori |
| ed. | fast reading | pikaluku |
| industr., construct. | fast reed | yläkampa |
| min.prod. | fast rescue boat | nopeakulkuinen valmiusvene |
| health. | "fast" response | nopea aikapainotus |
| el. | fast retransmit mechanism of TCP | TCP:n pikauudelleenlähetysmekanismi |
| mech.eng. | fast return | pikapaluuliike |
| environ., agric. | fast rotation forest | lyhytkiertoviljely |
| commun. | fast select | nopea valinta |
| el. | fast shut-down device | pikasulkulaitteisto |
| el. | fast spark source | silmänräpäyksessä toimiva sytytin |
| gen. | fast-spending aid | hätäapu |
| el. | fast spiral | jyrkkänousuinen ura |
| environ. | fast-start financing | nopeasti saatava rahoitus |
| environ. | fast-start funding | nopeasti saatava rahoitus |
| comp., MS | fast startup | nopea käynnistys (A method of starting the computer that speeds boot time by ending the user session and hibernating the computer, rather than shutting down all running services) |
| el. | fast surface states | nopeat pintatilat |
| el. | fast switching channel | pikakytkentäkanava |
| mater.sc. | fast tacking | pikaliitos |
| mater.sc. | fast tacking | nopea tartunta |
| health. | "fast" time constant | nopea aikapainotus |
| industr., construct. | fast to light | valonkestävä |
| industr., construct. | fast to rubbing | hankauksenkestävä |
| gen. | fast-track | nopeutettu |
| law, interntl.trade. | fast track | fast track -valtuudet |
| commer., polit., fin. | fast track action | nopeutettu toiminta |
| commer., polit., fin. | fast track action | nopeasti toteutettava toimi |
| health. | fast-track assessment | nopeutettu arviointimenettely |
| fin. | fast track country | nopean talouskasvun maa |
| crim.law. | fast track extradition | nopeutettu luovutusmenettely |
| environ. | fast traffic | nopea liikenne |
| environ. | fast traffic No definition needed | nopea liikenne |
| med. | fast transfusion set | paineinfuusiovälineet |
| mech.eng. | fast travel | pikaliike |
| mech.eng. | fast traverse | pikaliike |
| comp., MS | Fast User Switching | nopea käyttäjänvaihto (A feature in Windows that allows you to switch to a different computer user account without closing programs and files first) |
| tech., nucl.phys., el. | fast wave | nopea aalto |
| el. | fast wave device | nopea aaltolaite |
| earth.sc., el. | fast-working fuse | nopea sulake |
| commun., transp. | fastest means | nopein kuljetustie |
| health. | fasting metabolism | paastoaineenvaihdunta |
| fish.farm. | get fast | tarttua |
| fish.farm. | get fast | jäädä kiinni |
| met., el. | high-powered fast-working furnace | suurtehovalokaariuuni |
| el. | ultra-fast gated receiver | ultranopea pulssiohjattu vastaanotin |
| mech.eng., construct. | up fast solenoid | suuren nousunopeuden solenoidi |
