Erstspracherwerb; First language acquisition; Ontogenese; Language acquisition ; Preverbal communication; Prespeech; Fötus (Sprachverständnis) ; Präverbale Kommunikation; Protolanguage (language acquisition) ; Prelexical period (language acquisition) ; Lallen (Spracherwerb) ; Dual language acquisition; Bimodal language acquisition; Spracherwerb (biling.) ; Language acquisition (biling.) ; Bilingual language acquisition ; Differenzierung (Zweisprachiger Spracherwerb) ; Differentiation (bilingual language acquisition) ; Language differentiation (bilingual language acquisition) ; English ; French
