birthday
noun
birth·day
ˈbərth-ˌdā 
1
a
: the day of a person's birth
b
: a day of origin
2
: an anniversary of a birth
her 21st birthday
Examples of birthday in a Sentence
Her birthday is September 30th.
Today is his 21st birthday.
The company just celebrated its 50th birthday.
Recent Examples on the Web
Christopher Cole Wells died just barely two weeks before his January 29th birthday.
—
Kansas City Star, 3 Feb. 2026
Murray Gell-Mann was a Nobel-winning astrophysicist and Epstein friend who signed his infamous birthday book.
—Gary Baum, HollywoodReporter, 3 Feb. 2026
Clinton appeared in pictures and in a handwritten note in a book Epstein’s associate Ghislaine Maxwell assembled for his 50th birthday.
—Bart Jansen, USA Today, 3 Feb. 2026
Rocca is particularly proud that Filming Italy has now secured its third star dedicated to an Italian artist, following the awarding of stars to Gina Lollobrigida in 2018 on the occasion of her 90th birthday, and Giancarlo Giannini in 2023.
—Nick Vivarelli, Variety, 3 Feb. 2026
See All Example Sentences for birthday
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Kansas City Star, 3 Feb. 2026
Murray Gell-Mann was a Nobel-winning astrophysicist and Epstein friend who signed his infamous birthday book.
—Gary Baum, HollywoodReporter, 3 Feb. 2026
Clinton appeared in pictures and in a handwritten note in a book Epstein’s associate Ghislaine Maxwell assembled for his 50th birthday.
—Bart Jansen, USA Today, 3 Feb. 2026
Rocca is particularly proud that Filming Italy has now secured its third star dedicated to an Italian artist, following the awarding of stars to Gina Lollobrigida in 2018 on the occasion of her 90th birthday, and Giancarlo Giannini in 2023.
—Nick Vivarelli, Variety, 3 Feb. 2026
See All Example Sentences for birthday
Cite this Entry
“Birthday.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/birthday. Accessed 6 Feb. 2026.
Copy CitationKids Definition
birthday
noun
birth·day
ˈbərth-ˌdā
1
: the day or anniversary of one's birth
2
: the day or anniversary of a beginning
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