| Ölfilter | oil filter |
| Filter | filter |
| Ölfilm | oil film |
| Filmer | filmmaker |
| Filzer | felt-tip |
| filtern | fine filter |
| gefiltert | filtered |
| Biofilter | biofilter |
| C-Falter | comma |
| Falter | butterfly |
| Folter | torture |
| Sofioter | Sofian |
| elfter | eleventh |
| Blister | blister pack blister gennaker |
| Elfmeter | penalty kick |
| Flitter | frippery |
| Gleiter | glider |
| Glitter | glitter |
| Kleister | Marxist glue flour paste paste |
| Leiter | director head leader conductor ladder |