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.
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]
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).