| Orthodoxe Kirchen | Eastern Orthodox Church |
| Orthodoxe Kirche | Orthodox Church |
| orthodoxe Kirche | Orthodox Church |
| Orthodoxie | Orthodoxy |
| orthodoxer Jude | Orthodox Jew |
| Bartholomäuskirche | St. Bartholomew's Church |
| Katholische Kirche | Catholic Church |
| Thomaskirche | St. Thomas's Church |
| Rodonkuchen | bundt cake |
| Altenkirchen | Altenkirchen |
| Katharinenkirche | St Catherine's Church |
| Tochterkirche | daughter church |
| Orthopyroxen | orthopyroxene |
| Orthorexie | orthorexia |
| orthographisch | orthographic |
| orthorhombisch | orthorhombic |
| orthodox | orthodox |
| orthografisch | orthographic |
| orthotrope Platte | orthotropic deck |
| methodologisch | methodological |