| Ökumenopolis | ecumenopolis |
| Ökumenismus | ecumenism |
| Monopolist | monopolist |
| Akropolis | Acropolis |
| Metropolis | metropolis |
| Ökumene | ecumenism |
| ökumenisch | ecumenical |
| Kumpelin | friend |
| Numerologie | numerology |
| Sumerologie | Sumerology |
| Monopoly | Monopoly |
| Monopol | monopoly monopole |
| oknophil | ocnophil |
| Megalopolis | megalopolis |
| Nekropolis | necropolis |
| Oligopolist | oligopolist |
| Onomatopoie | onomatopoeia |
| Onomatopöie | onomatopoeia |
| Kosmopolit | cosmopolitan cosmopolite |
| Onomatopoesie | onomatopoeia |