| Part of speech | common noun |
|---|---|
| Plural | dagboeke |
| Albanian | ditar |
|---|---|
| Czech | deník |
| Dutch | dagboek; journaal |
| English | diary |
| Esperanto | taglibro; tagolibro |
| German | Tagebuch |
| Italian | diario |
| Latin | commentarius |
| Portuguese | diário |
| Saterland Frisian | Deegebouk |
| Spanish | diario |
| Swedish | diarium; dagbok |
| Thai | สมุดบันทึกประจำวัน |
| West Frisian | deiboek |