birthday

Pronunciation

• (UK) IPA ^(key): /ˈbɜːθ.deɪ/
• (US) IPA ^(key): /ˈbɝːθ.deɪ/

• Audio (US)

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• Audio (UK)

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Noun

Singular birthday

Plural birthdays

1. The day you were born.

   They will need your birthday on the application.

   My birthday is September 14, 1972.

2. The same day of the year you were born, happening every year. Often there is a party for a person's birthday.

   My birthday is September 14.

   We celebrated my birthday a week late this year.