baby talk
US /ˈbeɪ.bi ˌtɔːk/
UK /ˈbeɪ.bi ˌtɔːk/

1.
linguagem de bebê, fala de bebê
a simplified type of speech used by adults when talking to young children, or by young children learning to speak
:
•
She used baby talk when speaking to her newborn niece.
Ela usou linguagem de bebê ao falar com sua sobrinha recém-nascida.
•
The toddler's baby talk was adorable.
A linguagem de bebê da criança era adorável.