Cylinder: A solid bounded by a cylindrical surface and two parallel planes (the bases).
Decagon: A polygon with 10 sides and 10 angles.
Dodecahedron: Any polyhedron having twelve plane faces.
Ellipse: A closed plane curve resulting from the intersection of a circular cone and a plane cutting completely through it.
Ellipsoid: A surface whose plane sections are all ellipses or circles.
Equilateral triangle: A three-sided regular polygon.
Helix: A curve that lies on the surface of a cylinder or cone and cuts the element at a constant angle.
Heptagon: A seven-sided polygon.
Hexagon: A six-sided polygon.
Hexahedron: Any polyhedron having six plane faces.
Hyperboloid: A quadric surface generated by rotating a hyperbola around its main axis.
Isosceles triangle: A triangle with two equal sides.
Line segment: In geometry, a line segment is a part of a line that is bounded by two distinct end points, and contains every point on the line between its end points.
Nonagon: A nine-sided polygon.
Obtuse triangle: A triangle that contains an obtuse interior angle.
Octagon: An eight-sided polygon.
Octahedron: Any polyhedron having eight plane faces.
Orb: An object with a spherical shape.
Oval: Rounded like an egg.
Paraboloid: A surface having parabolic sections parallel to a single coordinate axis and elliptic sections perpendicular to that axis.
Parallelepiped: A prism whose bases are parallelograms.
Parallelogram: A quadrilateral whose opposite sides are both parallel and equal in length.
Pentagon: A figure having five sides. Also, (military) the United States military establishment.
Plane: (mathematics) an unbounded two-dimensional shape.
Polygon: A closed plane figure bounded by straight sides.
Polyhedra: A solid figure bounded by plane polygons or faces.
Prism: Optical device having a triangular shape and made of glass or quartz; used to deviate a beam or invert an image.
Pyramid: A polyhedron having a polygonal base and triangular sides with a common vertex
Quadrilateral: Having four sides.
Rectangle: A parallelogram with four right angles.
Rhombus: A parallelogram with four equal sides; an oblique-angled equilateral parallelogram.
Right triangle: A triangle with one right angle.
Scalene triangle: A triangle with no two sides of equal length.
Sector: A plane figure bounded by two radii and the included arc of a circle.
Semicircle: A plane figure with the shape of half a circle.
Spheroid: A shape that is generated by rotating an ellipse around one of its axes.
Tetrahedron: Any polyhedron having four plane faces.
Trapezium: A multiple star in the constellation of Orion.
Trapezoid: A quadrilateral with two parallel sides.
Group 2: Words used for Huge Size
This is an interesting group of words that can be used to describe anything and everything that is large, big or huge in life. This group of words can be especially useful in describing the scale and impact of situations and events, and you would do well to use these words for impact. It will help be a huge help to you in questions of synonyms. Go through the list here:
Astronomical: Inconceivably large.
Colossal: Of immense size; huge; gigantic.
Considerable: Rather large or great in size, distance, extent etc.