| Firlefanz | bells and whistles stupidity |
| Firmen- | corporate |
| Firewall | firewall |
| firmen | confirm |
| Irland | Republic of Ireland Ireland Northern Ireland |
| Elefant | elephant |
| Fischfang | fishing |
| Wildfang | tomboy |
| Militanz | militancy |
| Bilanz | balance sheet balance outcome result stocktaking survey record |
| Eleganz | elegance snazziness |
| Finanz | finance |
| Franz | Francis |
| Impedanz | impedance |
| Irrelevanz | irrelevance irrelevancy |
| Relevanz | relevance |
| Toleranz | tolerance |
| FireWire | firewire |
| Firmensitz | residence head office |
| Firmpate | godfather |