| formlos | shapeless informal |
| Formosa | Formosa |
| armlos | armless |
| harmlos | harmless innocuous |
| hornlos | hornless |
| farblos | colourless colorless |
| sorglos | carefree careless |
| torlos | goalless scoreless |
| Form- | formal |
| Formalie | formality |
| Formalin | formalin |
| Formalist | formalist |
| Formen | molding |
| formen | form shape model sculpt sculpture |
| Formung | molding |
| formbar | malleable |
| förmlich | punctilious formal directly |
| Forelle | trout |
| Form | shape form mould |
| Formant | formant |