birth·day /ˈbɝθˌde/
 生日,誕辰


 Birth·day n.
 1. The day in which any person is born; day of origin or commencement.
 Those barbarous ages past, succeeded next
 The birthday of invention.   --Cowper.
 2. The day of the month in which a person was born, in whatever succeeding year it may recur; the anniversary of one's birth.
 This is my birthday; as this very day
 Was Cassius born.   --Shak.


 Birth·day, a. Of or pertaining to the day of birth, or its anniversary; as, birthday gifts or festivities.

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 birthday
      n 1: an anniversary of the day on which a person was born (or the
           celebration of it)
      2: the date on which a person was born [syn: natal day]


 Birth-day
    The observance of birth-days was common in early times (Job 1:4,
    13, 18). They were specially celebrated in the land of Egypt
    (Gen. 40:20). There is no recorded instance in Scripture of the
    celebration of birth-days among the Jews. On the occasion of
    Herod's birth-day John the Baptist was beheaded (Matt. 14:6).