Atheism[r]: Absence of belief in any god or other supernatural beings. [e]
Buddhism[r]: Spiritual tradition founded on the teachings of the Buddha. [e]
Christianity[r]: The largest world religion, which centers around the worship of one God, his son Jesus Christ, and his Holy Spirit. [e]
Deism[r]: A religious philosophy which holds that religious beliefs must be founded on human reason and observed features of the natural world, and that these sources reveal the existence of a God or supreme being. [e]
Ecclesiology[r]: The study of the doctrine of the Church. [e]
Eschatology[r]: The study of the doctrine of "last things" or end times, or more broadly end times scenarios themselves. [e]