bye-bye

intj, noun — 3 senses

bye-bye

intj

/baɪˈbaɪ/ · /ˈbaɪbaɪ/

Etymology Reduplication of bye.

1

Childish, Informal, Often Goodbye.

Bye bye! Let's play again some time!1995, HAL Laboratory, EarthBound, Nintendo, Super Nintendo Entertainment System:

bye-bye

noun

Etymology Reduplication of bye.

1

Childish, Colloquial, Often A goodbye.

2

Childish, Colloquial Bedtime for a toddler, going to sleep, going to bed.

Brush your teeth, it's time to go bye-bye.
"[H]e came to the gate of the city; and finding it shut lay him down and went to by-by!"1885, Richard F. Burton, chapter XXII, in The Book of the Thousand Nights and a Night, volume I, The Burton Club, page 224:

Entry derived from the Wiktionary, under licence CC BY-SA 4.0 — list of authors.