| Zweitsprache | second language, L 2 |
| Zweitspracherwerb | L2 acquisition second language acquisition/ learning |
| Weltsprache | world language |
| zweisprachig | bilingual |
| Zielsprache | target language |
| Arbeitssprache | working language |
| Zeitspanne | period of time |
| Objektsprache | object language |
| Erstsprache | mother tongue native language |
| Kunstsprache | artificial language constructed language |
| Skriptsprache | scripting language |
| Gemeinsprache | colloquialism standard language |
| Kri-Sprache | Cree |
| Metasprache | metalanguage |
| Zulusprache | Zulu |
| Cree-Sprache | Cree Cree language |
| Fremdsprache | foreign language |
| Geheimsprache | secret language |
| Komi-Sprache | Komi |
| Kreolsprache | creole language |