birthday

Your birthday is the day of your birth! It’s the yearly anniversary that marks the day you were born. Not everyone celebrates, but a birthday is a good excuse for a party and cake.

You can use birthday both to refer to the specific day of a baby's birth, and the annual marking of that day throughout the years that follow. Sometimes people talk about the birthday of a country, group, or even a building: "It's the art museum's fiftieth birthday next year." The Old English byrddæg originally referred to the celebration of a king or saint's birth, but over the years it was extended to include everyone.

Definitions of birthday
  1. noun
    the date on which a person was born
    synonyms: natal day
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    type of:
    date, day of the month
    the specified day of the month
  2. noun
    an anniversary of the day on which a person was born (or the celebration of it)
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    type of:
    anniversary, day of remembrance
    the date on which an event occurred in some previous year (or the celebration of it)
Word Family
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