What is the difference between a basilica and a dome?

A basilica is a large and important church building, often characterized by a rectangular floor plan, a central nave, and an apse at one or both ends, typically used for Christian worship. In contrast, a dome is a structural element that forms a rounded roof or ceiling over a building, often used to create a visually striking architectural feature. While some basilicas may feature domes, the two terms refer to different aspects of architecture: one pertains to a type of building, and the other to a specific architectural element.