bye-bye

IPA(Pronunciation)

Interjection

childish informal often

(informal, often childish) Goodbye.

Japanese Meaning

さようなら（くだけた、子供っぽい言い方）

At the end of the picnic, the toddler waved both hands and cried, 'bye-bye'.

ピクニックの終わりに、その幼児は両手を振って「バイバイ」と叫んだ。

Sense（1）

(informal, often childish) Goodbye.

Bye bye! Let's play again some time!