n.
1.a monotheistic system of beliefs and practices based on the Old Testament and the teachings of Jesus as embodied in the New Testament and emphasizing the role of Jesus as savior
2.the collective body of Christians throughout the world and history (found predominantly in Europe and the Americas and Australia)
Idiom of the Day
avail oneself of (something)
to use something that is available
We availed ourselves of the office space to prepare for the school festival.