| Part of speech | common noun |
|---|---|
| Hyphenation | dok·tor·o |
| Singular | Plural | |
|---|---|---|
| Nominative | doktoro | doktoroj |
| Accusative | doktoron | doktorojn |
| Afrikaans | doktor |
|---|---|
| Catalan | doctor |
| Czech | doktor; lékař |
| Danish | doktor |
| Dutch | doctor |
| English | doctor; PhD |
| Faeroese | doktari |
| French | docteur |
| German | Doktor; Lehrer |
| Greek | διδάκτωρ |
| Hungarian | doktor; orvos |
| Italian | dottore |
| Papiamento | doktor |
| Polish | doktor |
| Portuguese | doutor; escriba |
| Russian | доктор |
| Saterland Frisian | Dokter |
| Spanish | doctor |
| West Frisian | doktor |