birth date

noun

variants or less commonly birthdate
plural birth dates also birthdates
: the calendar date on which someone or something was born : date of birth
There's even some question about his birth date—one source says 1854, another says 1856.Eugene Robinson
Of course, the registered horse has a recorded birth date, but many horses are not so fortunate.R. B. Warren
(figurative) Modern British drama does, however, have a precise and undisputed birthdate: May 8, 1956. It is opening night at the fledgling Royal Court …Timothy Mason

Examples of birth date in a Sentence

Recent Examples on the Web The new mom captioned the photo simply with a grey heart emoji and her baby's birth date: Feb. 26, 2023. Brownlee, who shares her son with her boyfriend, did not reveal her son's name or show his face at the time. Hannah Sacks, Peoplemag, 11 Mar. 2024 You'll be asked for your birth date to access the form. Dina Kaur, The Arizona Republic, 16 Feb. 2024 People born before 1752 were told to add 11 days to their birth date, and those born between January 1 and March 25 also had to add one year to sync up with the new calendar. Victoria Moorwood, The Enquirer, 23 Feb. 2024 Though a man named John or Henry Pearson appeared to be her father, their birth dates weren’t quite lining up. Tracy Scott Forson, Smithsonian Magazine, 6 Feb. 2024 The babies were born five weeks early, but the couple didn't confirm the twins' birth date. Hannah Sacks, Peoplemag, 19 Jan. 2024 The couple did not confirm the twins' birth date, but said the babies were born five weeks early. USA TODAY, 19 Jan. 2024 The birth dates of Kim’s father and grandfather, who preceded him as rulers, are national holidays in the authoritarian state. Reuters, NBC News, 8 Jan. 2024 Social media and video game apps typically ask new users to provide their birth dates. Natasha Singer, New York Times, 20 Dec. 2023

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'birth date.' 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

1831, in the meaning defined above

Time Traveler
The first known use of birth date was in 1831

Dictionary Entries Near birth date

Cite this Entry

“Birth date.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/birth%20date. Accessed 28 Mar. 2024.

Last Updated: - Updated example sentences
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