The word from the list that best fits the definition "The belief in one god" is "Monotheism."
Explanation:
1. Monotheism is a term that describes the belief in the existence of only one God. It is derived from the Greek words "monos" meaning "single" and "theos" meaning "god."
2. In monotheistic religions such as Christianity, Judaism, and Islam, followers believe in the existence of a single, all-powerful deity.
3. Monotheism contrasts with polytheism, which is the belief in multiple gods, and atheism, which is the absence of belief in any gods.
By selecting "Monotheism" from the list, you are identifying the specific term that best corresponds to the concept of believing in one God.
