A platonic solid is a three-dimensional shape that has regular polygons as its faces and the same number of faces meeting at each vertex. There are five different types of platonic solids: tetrahedron, cube, octahedron, dodecahedron, and icosahedron. Although platonic solids are unique and widely recognized, there are other terms that are synonymous with them. These include regular polyhedron, convex regular polyhedron, and platonic polyhedron. All these terms describe a geometric solid where all faces and vertices are congruent, and the shapes and angles are identical throughout. These terms can be used interchangeably and are well-known among mathematicians, scientists, and enthusiasts of geometry.