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

1.
lenguaje de bebé, habla de bebé
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.
Ella usó lenguaje de bebé al hablar con su sobrina recién nacida.
•
The toddler's baby talk was adorable.
El lenguaje de bebé del niño pequeño era adorable.