birth date

American  

[burth-deyt] / ˈbɜrθˌdeɪt /

Or birthdate

noun

1. the date of a person’s birth, usually expressed as a specific day, month, and year.

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Etymology

Origin of birth date

First recorded in 1550–1600

Example Sentences

A parent just needs their child’s original Social Security card and birth date.

From MarketWatch • Mar. 23, 2026

Requirements to obtain a certified license included proof of name and birth date, SSN, address of principal residence and status of citizenship.

From Salon • Feb. 12, 2026

When people sign up for Roblox, like on other platforms, they provide their birth date, but it’s easy to lie about one’s age.

From Los Angeles Times • Nov. 18, 2025

Officially his birth date is registered in 1921, but Yavar says he was born on 15 December 1920.

From BBC • Aug. 15, 2025

“No, you don’t. You look mighty handsome. But did you notice the birth date on it?”

From "Ruby Holler" by Sharon Creech