birth date

noun

variants or less commonly birthdate

ˈbərth-ˌdāt 

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

To double check, plug in your name and birth date into the Tarrant County Voter Lookup. —Rachel Royster, Fort Worth Star-Telegram, 21 Apr. 2025

By only requiring users to enter a birth date, the suit argues children under 13 have been allowed on the app and exposed to graphic or violent content as a result. —Miranda Nazzaro, The Hill, 18 Apr. 2025

That’s a nod to his jersey number, 87, his birth year, 1987, and his birth date, August 7th. —Carol Schram, Forbes.com, 2 Apr. 2025

What to Know Retirement checks are distributed throughout the month, based on the recipient's birth date and the duration of their benefit payments. —Ron Estes, MSNBC Newsweek, 31 Mar. 2025

Word History

First Known Use

1831, in the meaning defined above

Rhymes for birth date

• abate
• airfreight
• await
• baseplate
• berate
• birthdate
• birthrate
• bookplate
• borate
• breastplate
• bromate
• casemate