1

bye-bye

interjection \ ˈbī-ˌbī , bī-ˈbī \
variants: or by-by

Definition of bye-bye

used to express farewell

Origin and Etymology of bye-bye

baby-talk reduplication of goodbye

2

bye-bye

adverb \ ˈbī-ˌbī \
variants: or by-by

Definition of bye-bye

: out especially for a walk or ride used with the verb go

First Known Use of bye-bye

1917

in the meaning defined above

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3

bye-bye

noun \ ˈbī-ˌbī \
variants: or by-by

Definition of bye-bye

: bed, sleep
  • lie down … and go to bye-bye
  • —Rudyard Kipling

First Known Use of bye-bye

1867

in the meaning defined above

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4

bye-bye

adverb \ ˈbī-ˌbī \
variants: or by-by

Definition of bye-bye

: to bed or sleep used with the verb go

First Known Use of bye-bye

1909

in the meaning defined above

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