| Firmensitz | residence head office |
| Firmen- | corporate |
| Firmenlogo | logotype |
| Firmenname | business name company name |
| firmen | confirm |
| Ferment | enzyme |
| Ilmenit | ilmenite |
| Dimension | dimension |
| Martensit | martensite |
| Forensik | forensic science forensics |
| Kindersitz | child safety seat |
| FireWire | firewire |
| Firmpate | godfather |
| Firmpatin | godmother |
| First | ridge |
| Firlefanz | bells and whistles stupidity |
| Firmament | firmament |
| Firmenwagen | company car |
| Firmung | confirmation |
| Firnis | varnish |