bye-bye
[ interjection bahy-bahy; noun, adverb bahy-bahy ]
interjection
Informal. goodbye.
noun
Baby Talk. sleep.
Idioms about bye-bye
go bye-bye, Baby Talk.
to leave; depart; go out.
to go to sleep; go to bed.
Origin of bye-bye
11700–10; apparently originally nursery phrase used to lull a child to sleep, later construed as reduplicative form of bye, short for goodbye
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2024
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