| Firmware | firmware |
| FireWire | firewire |
| Firmpate | godfather |
| Firewall | firewall |
| Firma | firm company business |
| firmieren | trade under the name of |
| Birmane | Burmese |
| Irmgard | Ermengarde |
| Fernwärme | district heating heat networks teleheating |
| Freeware | free ware freeware |
| Hardware | hardware |
| Kurzware | notion |
| Wirrwarr | clutter |
| Firmen- | corporate |
| Firmgodl | godmother |
| Firmgöd | godfather |
| Firmpatin | godmother |
| Firmament | firmament |
| Firmenname | business name company name |
| Firmenwagen | company car |