This document defines and describes basic geometric shapes and terms. It defines points, lines, planes, angles, perpendicular and parallel lines, triangles, polygons, quadrilaterals like squares, rectangles, trapezoids and parallelograms, circles, cylinders, spheres, ovals, and properties like concurrent lines and types of quadrilaterals like rhombuses. Key geometric concepts and their definitions are provided to establish common understanding of shape names and characteristics.