| Rektor | rector principal |
| Rektorin | headmistress |
| Hektor | Hector |
| Lektor | lector reader lecturer literary editor |
| Sektor | sector |
| Vektor | vector |
| Reaktor | reactor |
| Rektus | direct case |
| Direktor | manager director headmaster principal senior vice president |
| Rekord | record |
| Rektion | case government government |
| Rektum | rectum |
| rektal | rectal |
| Elektor | elector |
| hekto- | hecto- |
| Hekto- | hecto- |
| Hektar | hectare |
| Nektar | nectar |
| Nekton | nekton |
| Aktor | actuator |