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

They verified his birth date in two registries, and filled in the paperwork to register him for a possible record as a joke, she added.

From Barron's • May 15, 2026

For Claude, HealthEx needed my birth date, phone number, face scan and a driver’s license for verification.

From The Wall Street Journal • Apr. 4, 2026

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

From MarketWatch • Mar. 23, 2026

The passenger initially gave deputies a fake name and a 2012 birth date, but they were not fooled by this alibi as the woman appeared older, according to the Sheriff’s Office.

From Los Angeles Times • Dec. 27, 2024

The Long Count tracks time from a starting point, much as the Christian calendar begins with the purported birth date of Christ.

From "1491" by Charles C. Mann