Shapes Names: 20+ Common Geometric Shapes in English (with Pictures)

Learning shapes in English is an important step for ESL learners. Shape vocabulary appears frequently in daily life, school subjects, art, design, and basic mathematics. Understanding these words helps learners describe objects, signs, diagrams, and patterns more clearly.

In this lesson, you will learn 20+ common geometric shapes in English with pictures, pronunciation, and short explanations. You will also learn the difference between 2D shapes (flat shapes) and 3D shapes (solid shapes).

List of 2D Shapes (Flat Shapes)

2D shapes are flat shapes with only length and width. They do not have depth or thickness. These shapes are commonly used in drawings, diagrams, road signs, and basic geometry lessons.

Related: Math Vocabulary in English

Basic Polygons (3 to 4 Sides)

Picture	Vocabulary	IPA (US)	Short Description
	Triangle	/ˈtraɪˌæŋɡəl/	A polygon with three sides and three angles.
	Right Triangle	/raɪt ˈtraɪˌæŋɡəl/	A triangle that contains one 90-degree angle.
	Isosceles Triangle	/aɪˈsɑːsəˌliz ˈtraɪˌæŋɡəl/	A triangle with two equal sides.
	Equilateral Triangle	/ˌikwəˈlætərəl ˈtraɪˌæŋɡəl/	A triangle with three equal sides.
	Square	/skwer/	A shape with four equal sides and four right angles.
	Rectangle	/ˈrekˌtæŋɡəl/	A four-sided shape with opposite sides equal and four right angles.
	Rhombus	/ˈrɑːmbəs/	A quadrilateral with four equal sides but angles not always 90°.
	Parallelogram	/ˌpærəˈleləˌɡræm/	A shape with two pairs of parallel opposite sides.
	Trapezoid	/ˈtræpəˌzɔɪd/	A quadrilateral with at least one pair of parallel sides.

Advanced Polygons (5+ Sides)

Picture	Vocabulary	IPA (US)	Short Description
	Pentagon	/ˈpentəˌɡɑːn/	A five-sided polygon.
	Hexagon	/ˈheksəˌɡɑːn/	A polygon with six sides.
	Heptagon	/ˈheptəˌɡɑːn/	A polygon with seven sides.
	Octagon	/ˈɑːktəˌɡɑːn/	An eight-sided polygon.
	Decagon	/ˈdekəˌɡɑːn/	A polygon with ten sides.

Curved 2D Shapes

Picture	Vocabulary	IPA (US)	Short Description
	Circle	/ˈsɜːrkəl/	A perfectly round shape where every point is equally distant from the center.
	Oval	/ˈoʊvəl/	A rounded shape similar to a stretched circle.
	Ellipse	/ɪˈlɪpsɪs/	An oval-like curve formed by two focal points.

 List of 3D Shapes (Solid Shapes)

3D shapes are solid objects with length, width, and height. Unlike flat shapes, they have depth and volume and exist as real objects in the physical world.

Picture	Vocabulary	IPA (US)	Short Description
	Cube	/kjuːb/	A solid shape with six equal square faces.
	Cylinder	/ˈsɪləndər/	A shape with two circular bases and one curved surface.
	Sphere	/sfɪr/	A perfectly round three-dimensional object like a ball.
	Cone	/koʊn/	A solid shape with a circular base that narrows to a point.
	Pyramid	/ˈpɪrəmɪd/	A shape with triangular faces meeting at a single point.

Other Common Symbolic Shapes

These are common shapes found in signs, nature, decorations, and emojis.

Picture	Vocabulary	IPA (US)	Description
	Star	/stɑːr/	A decorative shape with pointed arms radiating from a center.
	Heart	/hɑːrt/	A symbol representing love or affection.
	Crescent	/ˈkresənt/	A curved moon-shaped symbol.
	Cross	/krɔːs/	A symbol formed by two lines crossing each other.
	Arrow	/ˈæroʊ/	A pointed symbol used to indicate direction.

How to Use Shape Names in Sentences

Shape names can be used as both nouns and adjectives in English.

Using Shapes as Nouns

When used as nouns, shape words name the form of an object.

• The wheel is a circle.
• The stop sign is an octagon.
• The dice is a cube.
• The moon looks like a crescent tonight.

Using Shapes as Adjectives

Some shape words can also describe nouns.

• I bought a square table.
• He is eating a triangular sandwich.
• A soda can is a cylindrical object.
• She wore a star-shaped necklace.