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birthday - definition and synonyms

 
 
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noun [countable] birthday pronunciation in British English /ˈbɜː(r)θdeɪ/
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singularbirthday
pluralbirthdays
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  1. the day each year that has the same date as the one on which you were born
    It’s her seventeenth birthday tomorrow.
    Her birthday is on 7th June.
    1. a.
      [only before noun] intended to celebrate someones birthday
      a birthday party/card/present

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