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
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
And that means Freeman was having one heck of a good birthday. Tim Reynolds, Chicago Tribune, 11 Jan. 2025 The birthday bash concert will mark the fourth consecutive show the UGK member has made at the Houston Livestock Show and Rodeo—H-Town Takeover, Southern Takeover, and All-American Takeover, respectively. Shelby Stewart, Essence, 10 Jan. 2025 And his goal from Lucas Vazquez’s cross was the perfect gift on Rodrygo’s 24th birthday. Guillermo Rai, The Athletic, 10 Jan. 2025 In May 2024, the parents of two revealed their plans to postpone their Father’s Day celebration for several months in order to avoid celebrating the holiday and Matt’s birthday at the same time. Zoey Lyttle, People.com, 10 Jan. 2025 See all Example Sentences for birthday 

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 21 Jan. 2025.

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

Last Updated: - Updated example sentences
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