| Subject | English | Finnish |
| 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) |
| industr., construct. | fast colour | kestoväri |
| industr., construct. | fast colour | aitoväri |
| nat.sc., agric. | fast growing | nopeakasvuinen |
| life.sc. | fast ice | kiintojää |
| agric. | fast-milking | nopealypsyinen |
| commun., IT | fast path | oikopolku |
| mech.eng. | fast pulley | kiintopyörä |
| industr., construct. | fast reed | yläkampa |
| mech.eng. | fast return | pikapaluuliike |
| mater.sc. | fast tacking | pikaliitos |
| gen. | fast-track | nopeutettu |
| mech.eng. | fast travel | pikaliike |
| mech.eng. | fast traverse | pikaliike |
| commun., transp. | fastest means | nopein kuljetustie |
| health. | fasting metabolism | paastoaineenvaihdunta |