Definitions:

1. An adult's imitation of the speech of a young child. NOUN
   • Researchers suggest that baby talk can aid in the cognitive development of infants.
2. Refers to a simplified form of speech used by adults when communicating with babies and very young children. NOUN
   • He couldn't help but smile when he heard his wife using baby talk to play with their toddler.
3. Refers to the simplified and exaggerated speech or language patterns used by adults when communicating with infants or young children. NOUN
   • The daycare teachers encouraged the babies' babbling and baby talk as a natural part of development.
4. Speech used to capture the child's attention, promote bonding and help the child learn language. NOUN
   • Parents often used baby talk to help their children learn language more easily.

Synonyms:

• babyese
• Infant-directed seech
• motherese
• Parentese