| Firma | firm company business |
| Firmament | firmament |
| Birma | Burma |
| Irma | Erma |
| First | ridge |
| Firn | firn |
| firn | elderly |
| firmen | confirm |
| Format | shape |
| Karma | karma |
| Parma | Parma |
| formal | formal |
| Firmen- | corporate |
| Firmgöd | godfather |
| Firmpate | godfather |
| Baufirma | building enterprise construction company |
| Firmung | confirmation |
| Firmware | firmware |
| Firnis | varnish |
| Birmane | Burmese |