| FireWire | firewire |
| Firmware | firmware |
| Firewall | firewall |
| Firmpate | godfather |
| Firnis | varnish |
| firmieren | trade under the name of |
| Bireme | bireme |
| Frimaire | Frimaire |
| Direktive | directive |
| Geseire | bellyaching blather drivel gossip moaning |
| Irene | Ireen Irene |
| Sirene | siren mermaid |
| fairerweise | in all fairness to be fair |
| Shareware | share ware shareware |
| verewigen | immortalize perpetuate |
| Gewirr | tangle cotton waste |
| ewige | perdition |
| Pferdewirt | groom stablehand |
| Forstwirt | silviculturist |
| Wirrwarr | clutter |