| Faktor | factor merchant |
| Faktorei | factory |
| Aktor | actuator |
| Fakten | lowdown |
| Faktura | invoice |
| Fakir | fakir |
| Fakt | fact |
| Faktum | fact |
| Fraktur | fracture blackletter script |
| Reaktor | reactor |
| Traktor | tractor |
| Funktor | functor |
| Hektor | Hector |
| Doktor | doctor physican |
| Lektor | lector reader lecturer literary editor |
| Liktor | lictor |
| Rektor | rector principal |
| Sektor | sector |
| Vektor | vector |
| Viktor | Victor |