Atheism refers to absence of belief in a particular deity, pantheon, or religious doctrine (notwithstanding belief in other deities). It commonly describes (narrowly) Belief that no deities exist (sometimes including rejection of other religious beliefs), (broadly) Rejection of belief that any deities exist (with or without a belief that no deities exist), and (very broadly) Absence of belief that any deities exist (including absence of the concept of deities), which gives the term a broader and more practical sense than a single short definition would suggest. Taken together, these meanings present Atheism as a flexible theme rather than a narrowly technical label, covering the central idea people usually mean when they use the word while still leaving room for closely related senses that appear in real language. Atheism therefore works well as a quotation category because it can hold direct statements about the subject, figurative uses that borrow its meaning, and broader reflections that stay anchored to the same central idea. Atheism is not limited to a single rigid definition in ordinary language, and that wider range is part of what makes the category useful for grouping related material without losing the term's main sense. When used as a theme, Atheism can support serious, reflective, argumentative, or even playful quotations, provided the wording still connects back to the core idea described by the source definitions.
