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birthday - definition and synonyms


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noun [countable] birthday pronunciation in American English /ˈbɜrθˌdeɪ/
Word Forms
  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 June 7th.
    1. a.
      [only before noun] intended to celebrate someones birthday
      a birthday party/card/present



a course of study which is much shorter than a university course and focuses on the skills you need for a job, especially computer-related skills

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an ancient Roman system of underfloor heating, used to heat houses with hot air; from the Latin 'hypocaustum'

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