| Doktorat | doctorate |
| Doktorin | Doctor |
| Doktor | doctor physican |
| Doktorand | Ph.D. candidate Ph.D. student doctorand |
| Doktorgrad | doctor's degree |
| Doktorvater | supervisor thesis advisor |
| Doktrin | doctrine |
| pektoral | pectoral |
| sektoral | sectoral sectorial |
| Porträt | portrait |
| doktrinal | doctrinal |
| doktrinär | doctrinaire |
| Doktorandin | Ph.D. candidate Ph.D. student doctorand |
| Doktorarbeit | dissertation thesis |
| Doktortitel | doctor's degree doctoral level |
| Dokument | document |
| Nokturne | nocturne |
| Oktant | Octans |
| Dekokt | decoction |
| Oktett | octet |