bye-bye

1 of 4

interjection

ˈbī-ˌbī  bī-ˈbī 

variants or by-by

—used to express farewell

bye-bye

2 of 4

adverb (1)

ˈbī-ˌbī 

variants or by-by

: out especially for a walk or ride

—used with the verb go

bye-bye

3 of 4

noun

ˈbī-ˌbī 

variants or by-by

: bed, sleep

lie down … and go to bye-bye

—Rudyard Kipling

bye-bye

4 of 4

adverb (2)

ˈbī-ˌbī 

variants or by-by

: to bed or sleep

—used with the verb go

Examples of bye-bye in a Sentence

Recent Examples on the Web

Interjection

The bye-bye to Darnold, 28, was a show of faith in McCarthy, who didn’t play as a rookie after suffering a knee injury in training camp. —Tom Krasovic, San Diego Union-Tribune, 31 Mar. 2025

Their concentrated formula addresses fine lines, wrinkles, dead skin cell buildup (bye-bye, adult acne), and dark spots with 10% glycolic acid while peptide- and antioxidant-rich algae and mate leaf extracts boost skin elasticity for a firmer, more youthful appearance. —Jennifer Hussein, Allure, 25 Feb. 2025

The characters are no longer teenagers, and the new makeup choices for each actor could point to plot details — so bye-bye to the signature sparkles. —Samantha Bergeson, IndieWire, 5 Feb. 2025

Full Story No more bye-bye for Chi-Chi’s: Restaurant chain reopening after 20-year hiatus Chi-Chi’s is not yet ready to say ta-ta — the chain is poised to reopen some of its restaurants after shutting its doors in the U.S. two decades ago. —Aris Folley, The Hill, 5 Dec. 2024

In this iteration of the show, the veneers are whiter, the tans are faker, and the McMansions are even more supersized; plus, Jason says bye-bye to Brett and serves as the sole Oppenheim brother on set. —Judy Berman, TIME, 28 June 2024

This popular pick utilizes snail mucin to boost moisture and tackle hyperpigmentation (bye-bye, dark spots). —Jennifer Hussein, Allure, 21 June 2024

Newton then waved bye-bye to a Villanova student section that taunted him all game. —Dan Gelston, USA TODAY, 21 Jan. 2024

And bye-bye to last year’s winners McDonald’s, Nestle, Unilever, Lockheed Martin, and Charles Schwab, which dropped off the list. —Alan Murray, Fortune, 31 Jan. 2024

Word History

Etymology

Interjection

baby-talk reduplication of goodbye

First Known Use

Interjection

circa 1736, in the meaning defined above

Adverb (1)

1917, in the meaning defined above

Noun

1867, in the meaning defined above

Adverb (2)

1909, in the meaning defined above

Rhymes for bye-bye

• ai
• aye
• bae
• bi
• buy
• by
• bye
• chai
• chi
• cry
• die
• dry

Kids Definition

bye-bye

interjection

variants or by-by

ˈbī-ˌbī,

ˌbī-ˈbī

—used to express farewell