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birth date

American  
[burth-dayt] / 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

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

Professor Anderson added: "Until that evidence becomes available, the precise birth date of the animal kingdom remains uncertain."

From Science Daily ● Oct. 7, 2026

The changes will also work for teens who signed up for an account with a false birth date or who use ChatGPT without logging in.

From The Wall Street Journal ● Aug. 18, 2026

Your payment date depends on your birth date, so your first payment will generally arrive the month after your first month of entitlement, regardless of whether your birthday is on, say, Oct.

From MarketWatch ● Jul. 28, 2026

She immediately rang her mum, Susan, to check her long-lost brother's birth date.

From BBC ● Jul. 23, 2026

One of the red-robed justices—Justice Engert—asks the boys simple questions—name, birth date, residence, occupation—and then reviews the charges against each boy.

From "The Boy Who Dared" by Susan Campbell Bartoletti

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