| Funktelefon | mobile phone |
| Münztelefon | payphone |
| Autotelefon | car phone |
| Wandtelefon | wall-mounted telephone |
| Funkeln | sparkle |
| funkeln | flash glitter sparkle twinkle |
| Funktion | function map mapping |
| Funkwesen | radio communications |
| Bildtelefon | videophone visual telephone television telephone |
| Telefon | telephone phone |
| Funktions | functional |
| funktions | functional |
| Funktor | functor |
| Fünkchen | scintilla |
| funkelnd | shiny |
| Funkzelle | cell |
| Fünftel | fifth |
| fünftel | fifth |
| fundieren | erect establish |
| fungieren | act as function as |