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

Names, email addresses, birth dates and purchase history can be used to create highly convincing scams. —Kurt Knutsson, FOXNews.com, 30 Jan. 2026

Instead of relying on birth dates and celestial positions, this assessment measures the psychological traits that zodiac archetypes have long represented (traits like leadership, adaptability, introspection and spontaneity). —Mark Travers, Forbes.com, 24 Jan. 2026

Recipients with birth dates between the 11th and 20th get their benefits on the third Wednesday of the month. —Maia Pandey, jsonline.com, 6 Jan. 2026

Your next check depends on your birth date. —Isa Almeida, Oklahoman, 6 Jan. 2026

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