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.

---

Etymology

Origin of birth date

First recorded in 1550–1600

Example Sentences

See Examples For:

birth date

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

Best birth date estimate for this railroad cafe: 1886 or 1887, and its address is now in Santa Clarita, a town that didn’t even exist then, but which rallied to save the café during Covid.

From Los Angeles Times ● Aug. 8, 2025

The birth date on the card showed that “Janice” had been born just two years before me, though from his appearance, I would have guessed that he was at least ten years older than that.

From "Newjack: Guarding Sing Sing" by Ted Conover