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
Flashing back 10 days earlier, Charlie is shown at his 60th birthday, forcefully saying hello to Raymond Peepgrass (Tom Pelphrey) by gripping the back of his collar.
—
Emily Longeretta, Variety, 14 May 2024
The queen's birthday is the same day as Mother's Day.
—Mary Cunningham, CBS News, 12 May 2024
See all Example Sentences for birthday 
Emily Longeretta, Variety, 14 May 2024
The queen's birthday is the same day as Mother's Day.
—Mary Cunningham, CBS News, 12 May 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.
Dictionary Entries Near birthday
Cite this Entry
“Birthday.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/birthday. Accessed 17 May. 2024.
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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