definition of
Nativity

[1] #1 Nativity n. [birth, nativity, nascency, nascence] the event of being born; "they celebrated the birth of their first child". wn

[2] #2 Nativity n. [Virgin Birth] 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. wn