/kris'chee an"i tee/ , n. , pl. Christianities .
1. the Christian religion, including the Catholic, Protestant, and Eastern Orthodox churches.
2. Christian beliefs or practices; Christian quality or character: Christianity mixed with pagan elements; the Christianity of Augustine's thought.
3. a particular Christian religious system: She followed fundamentalist Christianity.
4. the state of being a Christian.
5. Christendom.
6. conformity to the Christian religion or to its beliefs or practices.
[ 1250-1300; ME cristianite christianitat- (s. of christianitas ), equiv. to christian- CHRISTIAN + -itat- -ITY; r. ME cristiente ]