Why is Facebook a compound noun?

Facebook is a compound noun because it is formed by combining two separate Words: "face" and "book." Each Word contributes to the overall meaning, with "face" referring to a person's profile or identity and "book" suggesting a collection or compilation. Together, they denote a platform for social interaction and connection, embodying the essence of social networking. Compound nouns often create new meanings that are distinct from their individual components, as seen in this case.