Vocabulary for IELTS Academic (Band 8-9) - Shapes

Here, you will learn some English words related to Shapes that are necessary for the Academic IELTS exam.

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Vocabulary for IELTS Academic (Band 8-9)

hexagonal [adjective]

having six equal sides and six angles

Ex: The soccer ball featured a hexagonal pattern on its surface , creating the iconic appearance of the classic ball .

convex [adjective]

having a surface that is curved outward

Ex:

concave [adjective]

having a surface that is curved inward

Ex:

trapezoidal [adjective]

having the shape of a trapezoid, a quadrilateral with one pair of parallel sides

Ex:

crescent [adjective]

denoting the shape of the new moon

curvilinear [adjective]

having curved lines, forms, or structures

Ex: The architect incorporated curvilinear windows into the building 's design , allowing for a harmonious and fluid appearance .

polygonal [adjective]

having a shape with multiple straight edges and angles

Ex: The garden design incorporated polygonal paving stones , creating an interesting and structured pathway .

annular [adjective]

having the form of a ring

Ex: The geologist studied the annular patterns in the rock formations to understand the geological history of the area .

ellipsoidal [adjective]

resembling an ellipse or an oval-shaped object

Ex: The designer created an ellipsoidal vase , combining symmetry and elegance in its oval form .

oblong [adjective]

having an elongated shape as an oval

Ex: She wore an oblong pendant necklace that matched her elegant gown .

parabolic [adjective]

having the shape of a U-shaped curve, often seen in trajectories, mirrors, or arches

Ex: The bridge cable forms a parabolic curve under its own weight .

quadrilateral [adjective]

consisting of four straight sides

serrated [adjective]

having a series of sharp, pointed projections along the edge

Ex:

rhomboid [adjective]

resembling a slanted or tilted rectangle

Ex: The rhomboid crystal displayed a unique arrangement of facets , reflecting light in various directions .

octagonal [adjective]

having the shape or characteristics of an octagon, which is a polygon with eight sides and eight angles

Ex: The traffic sign indicated an upcoming intersection with an octagonal shape , signaling drivers to stop .

tetrahedral [adjective]

characterized by or resembling a tetrahedron, which has four triangular faces

Ex: The tetrahedral arrangement of atoms in the crystal lattice contributes to its unique properties .

pentagonal [adjective]

having the shape of a pentagon, which is characterized by five straight sides and five angles

Ex: The clock face in the town square was designed with a pentagonal frame , enhancing its visual appeal .

cone-shaped [adjective]

having the form or characteristics of a cone, which is a three-dimensional geometric shape with a circular base tapering to a point at the apex

Ex: The pine trees in the forest often had a cone-shaped crown , characteristic of their species .

coiled [adjective]

having a spiral or wound shape, often forming a series of loops or turns

Ex: The climber secured the rope with a coiled knot before ascending the rock face .

tubular [adjective]

having the shape or characteristics of a tube

Ex: The flowers in the garden had tubular petals , attracting hummingbirds with their unique shape .

toroidal [adjective]

resembling a doughnut or a ring-shaped object

Ex: The modern sculpture in the park had a toroidal shape , creating an interesting focal point for visitors .

pyramidal [adjective]

resembling a structure with a polygonal base and triangular sides, often tapering to a point at the apex

Ex:

bulbous [adjective]

having the form or structure of a bulb

Ex: The onion 's bulbous body made it easy to grasp and peel .

Vocabulary for IELTS Academic (Band 8-9)
Size and Scale	Dimensions and Areas	Weight and Steadiness	Shapes
Increase in Amount	Decrease in Amount	Intensity	Speed
Significance	Uniqueness	Value	Complexity
Challenges	Quality	Success	Failure
Body Shape	Age and Appearance	Wellness	Intelligence
Human Traits	Positive Emotional Responses	Negative Emotional Responses	Positive Emotional States
Negative Emotional States	Social Behaviours	Tastes and Smells	Textures
Sounds	Temperature	Opinions	Thoughts and Decisions
Encouragement and Discouragement	Respect and Approval	Request and Suggestion	Attempt and Prevention
Movements	Body Language and Gestures	Commanding and Giving Permissions	Engaging in Verbal Communication
Eating and Drinking	Preparing Food	Science	Changing and Forming
Education	Astronomy	Physics	Biology
Chemistry	Geology	Philosophy	Psychology
Maths and Graphs	Geometry	Environment	Energy and Power
Landscape and Geography	Engineering	Technology	Internet
Computer	History	Religion	Culture and Custom
Language	Arts	Music	Film and Theatre
Literature	Architecture	Marketing	Finance
Management	Medicine	Sickness and Symptoms	Law
Crime	Punishment	Government	Politics
War	Measurement	Emotions	Travel and Migration
Weather	Pollution	Disasters	Animals
Food and Drinks	Adverbs of Manner