Dictionary.com
Thesaurus.com
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

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

For 102 Black young men in Seattle, it’s bye-bye little boy clip-ons and hello grown-up neckties.

From Seattle Times ● Apr. 28, 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

“Yeah. For flies. They love that blue light. Every time you hear that buzz, that’s another fly going bye-bye, off to fly heaven.”

From "As Brave As You" by Jason Reynolds

Random Word

Spin the wheel and learn a new word!

Get a word


Vocabulary.com logo
by dictionary.com

Dictionary.com's Learning Companion

Go beyond just looking up words.
Remember them forever with VocabTrainer.

Start training