| Welthilfssprache | international auxiliary language |
| Hilfssprache | auxiliary language |
| Weltsprache | world language |
| Elternsprache | baby-talk caretaker speech mother's speech motherese nursery language parental speech |
| Einheitssprache | standard language |
| Alltagssprache | everyday speech |
| Rechtssprache | legal language legal parlance |
| Altaisprache | Altaic language |
| keltische Sprache | Celtic language |
| Delegationssprache | delegation language |
| Interimssprache | interlanguage |
| Volkssprache | vernacular |
| Amtssprache | official language |
| Arbeitssprache | working language |
| Landessprache | national language |
| Seemannssprache | nautical jargon sailor's slang |
| Verkehrssprache | lingua franca |
| Delawarensprache | Delaware |
| Einzelsprache | language |
| Gemeinsprache | colloquialism standard language |