| Opponentin | adversary |
| Opponent | adversary |
| Opposition | opposition |
| opponieren | oppose |
| opportun | opportune suitable |
| Exponent | superscript exponent |
| Komponente | component |
| Komponistin | composer |
| Phonetik | phonetics phonology |
| Abonnentin | subscriber |
| Dozentin | instructor teaching |
| Patientin | patient |
| Proletin | Philistine |
| Doppelagentin | double agent |
| Oppeln | Opole |
| Opperment | orpiment |
| Opportunistin | opportunist |
| Apposition | apposition |
| Sponti | firebrand |
| Deponens | deponent deponent verb verb deponent |