| Organik | organic chemistry |
| Anorganik | inorganic chemistry |
| Organ | organ |
| Organist | organist |
| Organza | organza |
| Arganie | argan |
| vorgängig | antecedent |
| Organell | organelle |
| Organizer | organizer |
| Orgie | orgy |
| Vorgang | procedure process transaction |
| organisch | organic organically physical physically |
| ergänzt | orgulous |
| Argali | argali |
| Arganöl | argan oil |
| Ergativ | ergative |
| Lugansk | Luhansk Lugansk |
| Oregano | oregano |
| Ortgang | bargeboard gableboard verge vergeboard |
| Botanik | botany |