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bye-bye noun

  /baɪˈbaɪ/ , /bəˈbaɪ/ , /ˈbaɪbaɪ/
  • (colloquial, childish) Bedtime for a toddler, going to sleep, going to bed.
 おねんね
  • (colloquial, often, childish) A goodbye.
 じゃ、また, では, またね, バイ, バイバイ
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