F
| facilitate | olajšati, pospešiti |
| fall (autumn) | jesen |
| feed | hraniti |
| feeding stuff | krma, piča |
| feet | noge |
| fell a tree | podreti drevo |
| fern | praprot |
| fertile | rodoviten, ploden |
| fertile soil | rodovitna (plodna) zemlja |
| fertilization | oploditev |
| fertilizer | mineralno gnojilo |
| fever | vročica, mrzlica, huda vnema |
| fiber (fibre) | vlakno |
| fibrous | material vlakninske snovi |
| fine | fin, droben |
| fir (spruce) | jelka, smreka |
| firewood | drva |
| firm | trden |
| firmly | trdno |
| flavor (flavour) | okus |
| flood | poplava |
| flour | moka |
| fog | megla |
| foggy | meglen |
| food ration | obrok hrane |
| foodstore | zaloga hrane |
| foodstuff | živilo, krmilo |
| foot | dolžinska mera (1ft=30,48 cm), tudi čevelj |
| form | oblikovati (se) |
| formation | oblikovanje, nastanek |
| fossil fuel | fosilno gorivo |
| fragment | delec |
| free | prost, svoboden |
| free from | brez |
| freedom | svoboda, svoboščina |
| freehand | prostoročen, prostoročno (brez pomagal) |
| freeze | zmrzovati, zmrzniti, zmrzal |
| freezing | zmrzovanje, (zelo) mrzlo |
| frequent | pogost |
| friable | krhek, drobljiv |
| frost | slana |
| fruit | sadje |
| fruity | saden |
| frying pan | ponev |
| fundamental | temeljen, osnovni |
| fungus | gliva, glivica |
| fungi | glive, glivice |