| English | eng-000 |
| nursery language | |
| Deutsch | deu-000 | Ammensprache |
| Deutsch | deu-000 | Elternsprache |
| eesti | ekk-000 | lastekeel |
| English | eng-000 | baby-talk |
| English | eng-000 | caretaker speech |
| English | eng-000 | mother's speech |
| English | eng-000 | motherese |
| English | eng-000 | parental speech |
| svenska | swe-000 | babyspråk |
| svenska | swe-000 | barnspråk |