monotheism, belief in the existence of one god, or in the oneness of God.

What do monotheists believe about God?

Theists believe that reality's ultimate principle is God—an omnipotent, omniscient, goodness that is the creative ground of everything other than itself. Monotheism is the view that there is only one such God.

What are the main beliefs of atheism?

2 The literal definition of “atheist” is “a person who does not believe in the existence of a god or any gods,” according to Merriam-Webster. And the vast majority of U.S. atheists fit this description: 81% say they do not believe in God or a higher power or in a spiritual force of any kind.