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
Send a personal, handwritten note, a birthday card, or just a special email directly to them.
—
Forbes.com, 4 June 2025
The story comes full circle with a twist: Eboni was able to give back to Ramona in a meaningful way, planning a surprise birthday party for her best friend.
—Ashley Vega, People.com, 4 June 2025
The last video on her account was posted hours before her murder, in which she was seen cutting a cake for her birthday.
—Saman Shafiq, USA Today, 4 June 2025
As Meghan Markle and Prince Harry continue to celebrate their daughter’s fourth birthday, Markle returned to Instagram to share a heartwarming video.
—Sara Vallone, Miami Herald, 4 June 2025
See All Example Sentences for birthday
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Forbes.com, 4 June 2025
The story comes full circle with a twist: Eboni was able to give back to Ramona in a meaningful way, planning a surprise birthday party for her best friend.
—Ashley Vega, People.com, 4 June 2025
The last video on her account was posted hours before her murder, in which she was seen cutting a cake for her birthday.
—Saman Shafiq, USA Today, 4 June 2025
As Meghan Markle and Prince Harry continue to celebrate their daughter’s fourth birthday, Markle returned to Instagram to share a heartwarming video.
—Sara Vallone, Miami Herald, 4 June 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 10 Jun. 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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