Theism is the religious belief that at least one god exists while rejecting the existence or importance of polytheistic gods or goddesses. In a broader definition it can also be the belief in God or gods in general, including all types of god-belief. Polytheism is the belief in several gods, while monotheism is the belief in just one god. For example, a theistic religion is Christianity. The opposite to a theist is an atheist. An atheist is a person who denies or disbelieves the existence of a supreme being or beings.