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Definitions

birthday

[burth-dey] / ˈbɜrθˌdeɪ /
NOUN
date of birth
Synonyms


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.

Resorting to facial recognition and other technologies addresses the reality that self-reported age has proven unreliable, with minors routinely lying about their birthdates to circumvent platform safety measures.

From Barron's • Feb. 9, 2026

Information related to names, birthdates, gender, geographic locations and some purchase details may have also been compromised.

From MarketWatch • Jan. 22, 2026

The company is also using AI to police existing accounts that have dubious birthdates.

From The Wall Street Journal • Dec. 6, 2025

Casino security and regulatory personnel had been intimidated by Trump and had failed to verify their birthdates.

From Slate • Jul. 29, 2025

And even though the birthdates corresponded to only one danger, my mother worried about them all.

From "The Joy Luck Club" by Amy Tan




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