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
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
January 20, 2025, will be the birth date of the External Revenue Service. Tom Rogers, Newsweek, 20 Feb. 2025 While the holiday is sometimes misunderstood as a celebration of the lives and birthdays of all U.S. presidents, the holiday was originally called Washington's Birthday and was the first federal holiday to honor an individual's birth date. Gabe Hauari, USA TODAY, 15 Feb. 2025 The flash drive contained the names, birth dates, and addresses of 465,177 people – the city’s entire population. Jessie Yeung, CNN, 12 Feb. 2025 The ink, which is visible in the accompanying photo, is the birth date of his late Wanted bandmate Tom Parker, who died from brain cancer at 33 in 2022. EW.com, 3 Jan. 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 9 Mar. 2025.

Last Updated: - Updated example sentences
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