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
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Set up your account by providing basic identifying information, like your name, birth date, mailing address, etc. Tyler Everett, MSNBC Newsweek, 16 Oct. 2025 The changes apply only to teen-specific accounts, which are accounts that teens have created using their truthful birth dates or accounts that Instagram has determined through its own investigation are likely to be those of people under 18 years old. David Ingram, NBC news, 14 Oct. 2025 With access to face photos, birth dates, addresses, and other information belonging to potentially millions of people, hackers stand to benefit the most from the move to require photo IDs as a condition for using a site. ArsTechnica, 9 Oct. 2025 In October 2019, the model got a tribute to her entire family: the birth dates of father Ron Teigen Sr., mother Vilailuck Teigen, Legend and kids Luna and Miles in black ink. Grace Gavilanes, PEOPLE, 8 Oct. 2025 See All Example Sentences for birth date

Word History

First Known Use

1831, in the meaning defined above

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

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Cite this Entry

“Birth date.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/birth%20date. Accessed 22 Oct. 2025.

Last Updated: - Updated example sentences
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