| obszön | obscene obscenely |
| Obszönität | obscenity |
| obschon | although albeit though |
| obsen | surveil surveillance surveille |
| Ozon | ozone |
| Obst | fruit |
| obskur | dubious obscure |
| Bobsport | bobsleigh |
| Kobsa | kobza |
| Obsthöke | fruiterer |
| Obsthökin | fruiterer |
| Obstmann | fruiterer |
| Obsession | obsession |
| Obsidian | obsidian |
| Obsorge | supervision care child custody custody |
| Obstbau | fruit-growing orcharding pomiculture |
| Obstler | fruit brandy |
| Obstruent | obstruent |
| Obstwein | fruit wine |
| obsiegen | win |