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
Earlier that night, Way celebrated his 35th birthday at Hollywood's Poppy nightclub.
—
Ryan Coleman, EW.com, 4 Aug. 2025
The league, the networks and the players gave every signal of wanting the Sun out, like the annual free agent exodus and the complaints about there being nothing to do in Southeastern Connecticut, being cooped up in the casino, sharing a practice facility with kids’ birthday parties.
—Dom Amore, Hartford Courant, 3 Aug. 2025
The Sun practice either inside Mohegan Sun Arena or at the nearby Mohegan Tribal Community and Government Center — a mixed-use facility that also serves as a public space for tribal members, resulting in the occasional overlap of Connecticut practices with community events, like birthday parties.
—Sabreena Merchant, New York Times, 2 Aug. 2025
The music video was filmed during her birthday party and has been growing in popularity since.
—Cam'ron Hardy, Chicago Tribune, 2 Aug. 2025
See All Example Sentences for birthday
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Ryan Coleman, EW.com, 4 Aug. 2025
The league, the networks and the players gave every signal of wanting the Sun out, like the annual free agent exodus and the complaints about there being nothing to do in Southeastern Connecticut, being cooped up in the casino, sharing a practice facility with kids’ birthday parties.
—Dom Amore, Hartford Courant, 3 Aug. 2025
The Sun practice either inside Mohegan Sun Arena or at the nearby Mohegan Tribal Community and Government Center — a mixed-use facility that also serves as a public space for tribal members, resulting in the occasional overlap of Connecticut practices with community events, like birthday parties.
—Sabreena Merchant, New York Times, 2 Aug. 2025
The music video was filmed during her birthday party and has been growing in popularity since.
—Cam'ron Hardy, Chicago Tribune, 2 Aug. 2025
See All Example Sentences for birthday
Cite this Entry
“Birthday.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/birthday. Accessed 7 Aug. 2025.
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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