ga-ga

onomatopoeic

(onomatopoeia) The noise of a baby trying to imitate speech.

Japanese Meaning

赤ちゃんが言葉を真似しようとする際に出す擬音、例えば「がーがー」という音

The baby crawled onto her mother's lap and, pointing at her mouth, went 'ga-ga' while trying to mimic speech.

赤ちゃんは母親の膝の上によじ登り、口を指さして言葉のまねをしようと『ばぶー』と言った。

Sense（1）

(onomatopoeia) The noise of a baby trying to imitate speech.