birthday

noun

birth·​day ˈbərth-ˌdā How to pronounce birthday (audio)
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 Spending my 43rd birthday with all the girls that inspire me and motivate me is just really special. Joelle Goldstein, Peoplemag, 6 June 2024 Sign in to the app or create a Google account, then add a profile for your child, including their name, gender, and birthday. PCMAG, 5 June 2024 The starkest statistics were for men past their 75th birthdays, who were dying by suicide at more than twice the rate of men younger than 25. Emily Alpert Reyes, Los Angeles Times, 5 June 2024 For many decades, Chuck E. Cheese’s in-house band has entertained birthday kids and families enjoying pizza, cake and sodas for celebrations — but the furry musicians with big eyes are not the life of the party anymore. Chase Jordan, Charlotte Observer, 3 June 2024 See all Example Sentences for birthday 

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'birthday.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

Word History

First Known Use

14th century, in the meaning defined at sense 2

Time Traveler
The first known use of birthday was in the 14th century

Dictionary Entries Near birthday

Cite this Entry

“Birthday.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/birthday. Accessed 9 Jun. 2024.

Kids Definition

birthday

noun
birth·​day ˈbərth-ˌdā How to pronounce birthday (audio)
1
: the day or anniversary of one's birth
2
: the day or anniversary of a beginning

More from Merriam-Webster on birthday

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