| Flexur | flexure |
| Flex | angle grinder |
| Fleece | fleece |
| Flehen | entreaty |
| flehen | implore entreat supplicate |
| Flenser | flenser |
| Fleck | stain spot place patch piece |
| Flegel | bugger yahoo flail |
| Fleiß | industriousness |
| Flexion | inflection inflexion |
| Pfleger | caretaker trustee curator |
| Alexius | Alexius |
| Ulexit | ulexite |
| Alex | Al Alec Alex Lex Sandy Xander Lexa Lexy |
| Alexis | Alexis |
| Ilex | holly |
| Lexem | lexeme |
| Lexik | vocabulary lexis |
| Nexus | nexus |
| Sexus | sex |