Technical language (teaching of) ; Français fonctionnel; Teaching of technical language ; DaF; Deutsch als Zweitsprache; German as a second language; DaZ; German as a foreign language ; Mining (technical language) ; Gastarbeiterkinder; Migrant workers (children of) ; Auswanderer (Kinder) ; Emigrants' children; Migrantenkinder; Aussiedler (Kinder) ; Kinder mit Migrationshintergrund; Immigrants'/Emigrants' children ; Comparison ; Lexikologie, kontrastive; Lexicology, contrastive; Contrastive lexicology ; Composition (morph.) ; Kompositum; Compounding ; German ; Turkish