| Ökologin | ecologist |
| Ökologie | ecology |
| Onkologin | oncologist |
| Önologin | oenologist |
| Tokologie | tocology |
| Ökologe | ecologist |
| Ökonomin | economist |
| Mykologin | mycologist |
| Onkologie | oncology |
| Ontologin | ontologist |
| Oologie | oology |
| Podologin | podiatrist |
| Pomologin | pomologist |
| Urologin | urologist |
| Biologin | biologist |
| Geologin | geologist |
| Oktologie | octology |
| Otologie | otology |
| Zoologin | zoologist |
| Önologie | oenology enology |