1. [noun] (now dated) Someone's birth; the place, time and circumstances of a birth. [from 14th c.]
2. [noun] (also with capital initial) The birth of Jesus. [from 14th c.]
3. [noun] (Christianity) The festival celebrating the birth of Jesus; Christmas Day. [from 12th c.]
4. [noun] (astrology) Someone's birth considered as a means of astrology; a horoscope associated with a person's birth. [from 14th c.]
5. [noun] (Christianity) The birth of Jesus as described in the Gospels of Matthew and Luke.
6. [noun] (by extension) Christmas.
7. [noun] The event of being born; 'they celebrated the birth of their first child'.
8. [noun] The theological doctrine that Jesus Christ had no human father; Christians believe that Jesus's birth fulfilled Old Testament prophecies and was attended by miracles; the Nativity is celebrated at Christmas.