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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

Wave bye-bye as they sink like a rock two miles off the Newport Beach coast with eight consecutive losses and counting.

From Seattle Times Dec. 1, 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

“If these kinds of incidents keep on going, we can wave bye-bye to the IMF and any international assistance that is going to come to the country,” he said.

From Washington Times Jul. 10, 2022

Gabriel giggled and waved bye-bye back to him.

From "The Giver" by Lois Lowry

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