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.
The federal postcard application asks applicants to provide their name, address, birth date, Social Security number and driver’s license. Jason Ma, Fortune, 14 Oct. 2024 How will Instagram enforce Teen Accounts? Instagram also has plans to enforce these age restrictions even when teens attempt to circumvent them by lying about their birth dates or attempting to gain parental control over each other's accounts. Mary Walrath-Holdridge, USA TODAY, 17 Sep. 2024 Other sensitive data, such as the content of texts, Social Security numbers and birth dates, were not leaked. Laura Bratton, Quartz, 15 July 2024 Otto's birth date is still unknown Otto was likely born in the summer of 2023, with his arrival being announced in August. Karla Renic, People.com, 30 Oct. 2024 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

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 24 Nov. 2024.

Last Updated: - Updated example sentences
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!