baby talk; caregiver speech
Refers to the simplified, affectionate language adults use when speaking to young children, including special vocabulary and intonation.
In baby talk, 'wanwan' refers to a dog.
母親は自然に育児語を使って赤ちゃんに話しかける。
Mothers naturally use baby talk when speaking to their babies.
Compound of 育児 (child-rearing) and 語 (language, word).