Spracherwerb (pragm.) ; Communicative competence (language acquisition) ; Kommunikative Kompetenz (Spracherwerb) ; Pragmatic competence (language acquisition) ; Pragmatische Kompetenz (Spracherwerb) ; Conversational analysis (language acquisition) ; Kindersprache (pathol.) ; Child language (pathol.) ; Specific language impairment; SLI; Dysgrammatismus (Kindersprache) ; Dysgrammatism (child language) ; Handicapped language acquisition ; Australia (English language in) ; Australien (engl. Sprache in) ; English in Australia ; Neuseeland (engl. Sprache in) ; New Zealand (English language in) ; Pākehā; English in New Zealand