The following outline is provided as an overview of and topical guide to atheism: Atheism – rejection of belief in the existence of deities.
[1] In a narrower sense, atheism is specifically the position that there are no deities.
[2][3] Most inclusively, atheism is simply the absence of belief that any deities exist.
[3][4] Atheism is contrasted with theism,[5][6] which in its most general form is the belief that at least one deity exists.
[6][7] Atheism can be described as all of the following: List of atheist organizations