| flexibel | flexible inflectable |
| inflexibel | inflexible |
| Flegel | bugger yahoo flail |
| Flexion | inflection inflexion |
| Deibel | deuce |
| Bleibe | abode doss |
| Dezibel | decibel |
| Fibel | primer spelling-book brooch fibula |
| Kleiber | Eurasian nuthatch mud wall builder Sitta nuthatch |
| Leiberl | T-shirt tricot |
| bleiben | stay last remain |
| fungibel | fungible |
| kredibel | credible |
| leiben | alive |
| penibel | meticulous fussy pernickety |
| Fleece | fleece |
| Flegelei | impudence |
| Flehen | entreaty |
| flehen | implore entreat supplicate |
| Flenser | flenser |