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Synonyms

bye-bye

American  
[bahy-bahy, bahy-bahy] / ˈbaɪˈbaɪ, ˈbaɪˌbaɪ /

interjection

  1. Informal. goodbye.


noun

  1. Baby Talk. sleep.

idioms

  1. go bye-bye,

    1. to leave; depart; go out.

    2. to go to sleep; go to bed.

Etymology

Origin of bye-bye

1700–10; apparently originally nursery phrase used to lull a child to sleep, later construed as reduplicative form of bye, short for goodbye

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

It may seem like a good time to wave bye-bye to the babydoll.

From Salon Jun. 12, 2026

But we can say bye-bye to the byes: Every team is in action for the next four weeks.

From Seattle Times Oct. 22, 2023

According to online wellness influencer Samantha Lotus, though, all I would need is some eye exercises and verbal affirmations, and I could wave bye-bye to my glasses.

From Slate Sep. 30, 2023

"We are not asking you to run a marathon, we are just asking you to sit down, listen to us for a couple of minutes, get a jab and bye-bye and thank you very much."

From BBC Dec. 26, 2022

“That’s it. It’s one-hundred percent evacuation. It’s bye-bye everybody.”

From "Most Dangerous: Daniel Ellsberg and the Secret History of the Vietnam War" by Steve Sheinkin

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