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When preparing for the International English Language Testing System (IELTS) Writing Task 1, it's important to familiarise yourself with specific vocabulary related to pie charts, a common type of question in this section. Understanding and accurately using pie chart vocabulary not only enhances your ability to describe and analyse these charts effectively but also demonstrates your proficiency in English to the examiners. This blog aims to equip you with essential terms and phrases needed to confidently approach pie chart questions in your IELTS Writing Task 1.

Read more: Prepare for IELTS writing test

What is an IELTS Writing task 1 pie chart question?

The IELTS Writing task 1 in the Academic module involves a section where you are required to write a descriptive report based on visual information. This could be in the form of line graphs, tables, bar charts, diagrams, or pie charts.

When it comes to a pie chart in IELTS Writing Task 1, you are typically presented with one or more pie charts. These charts show different segments representing various categories, and each segment's size reflects its proportion or percentage in the whole. Your task is to write a report summarising the key information presented in the pie charts, making comparisons where relevant.

Key aspects of writing a report on a pie chart include:

Introduction: Briefly describe what the pie chart is about.

Overview: Provide the main trends, differences, or stages shown in the chart without mentioning specific data.

Specific details: Describe the pie chart in detail, including specific data like percentages or proportions.

Comparisons: Make comparisons between different segments of the chart where applicable.

The goal is to write clearly, accurately, and relevantly to the data presented, often within a minimum word count of 150 words. This task tests your ability to organise, present, and possibly compare data, as well as to describe the stages of a process or describe an object or event.

Read more: IELTS Academic writing task 1 guide

Pie chart vocabulary for IELTS

Here are some essential pie chart vocabulary for IELTS and phrases that can help describe it in your IELTS test:

Percentage and fractions: Words like 'percent', 'a quarter', 'a third', 'a half', 'two-thirds', etc.,are important for indicating parts of the pie chart.

Comparative phrases: Phrases such as 'larger than', 'smaller than', 'the same as', 'compared to', 'in comparison with', etc., are useful for comparing different sections of the chart.

Trends and changes: Terms like 'increase', 'decrease', 'grow', 'drop', 'remain stable', 'fluctuate', 'peak', 'plummet', etc., are useful for describing changes or trends in the data.

Segments and sections: Referring to different parts of the pie chart, terms like 'segment', 'section', 'slice', 'portion', etc., are used.

Descriptive adjectives: Adjectives such as 'significant', 'minor', 'substantial', 'negligible', 'considerable', etc., help to describe the size or importance of different sections.

Introduction and conclusion phrases: Start with phrases like 'The pie chart illustrates...', 'This chart represents...', and conclude with 'In summary', 'Overall', etc.

Time frames: If the chart shows data over time, phrases like 'over the period', 'from...to...', 'during', and 'in the year...', are useful.

Specific data reference: When pointing to specific data, use phrases like 'according to the chart', 'the chart shows that', and 'as indicated in the chart'.

Generalising: Sometimes, it's necessary to generalise or estimate figures, using phrases like 'approximately', 'about', 'nearly', 'almost', 'roughly', etc.

Transitional phrases: To make your description flow, use transitional phrases like 'Moreover', 'Furthermore', 'However', 'On the other hand', etc.

Top 30 pie chart vocabulary words for the IELTS Writing test

Here are the 30 top pie chart vocabulary words that can help you in describing and interpreting pie charts, which is a common task in the IELTS exam:

Term

Category

Usage/Explanation

Percentage

Measurement

Used to denote a part of the whole in % form

Fraction

Measurement

Represents a part of the total in fractions

Majority

Quantity

Refers to the largest segment

Minority

Quantity

Refers to the smallest segment

Proportion

Quantity

Denotes the size of a segment relative to the whole

Segment

Component

A part or division of the pie chart

Slice

Component

Another term for a segment of the pie chart

Quarter

Measurement

Represents 25% of the pie chart

Half

Measurement

Indicates 50% of the total

Third

Measurement

Denotes roughly 33% of the total

A large portion

Quantity

Refers to a significant segment of the chart

A small portion

Quantity

Refers to a minor segment of the chart

Increase

Trend/Change

Used to describe upward trend in data

Decrease

Trend/Change

Used to describe downward trend in data

Stable

Trend/Change

Indicates no significant change in the segment

Fluctuate

Trend/Change

Denotes variation in the size of segments over time

Peak

Trend/Change

The highest point/segment in a pie chart

Plummet

Trend/Change

A dramatic decrease

Soar

Trend/Change

A dramatic increase

Marginally

Degree of change

Refers to a slight change

Significantly

Degree of change

Indicates a notable or considerable change

Compare

Analysis

To analyze similarities or differences between segments

Contrast

Analysis

To highlight differences between segments

Account for

Explanation

To explain the reason for a segment's size

Comprise

Component

Used to describe what makes up a segment

Constitute

Component

Another term for 'comprise'

Dominant

Quantity

Refers to the most prominent or largest segment

Trivial

Quantity

Indicates a segment of minor importance

Disproportionate

Quantity

Describes an uneven distribution within the chart

Equal distribution

Quantity

When segments have the same or similar sizes

This vocabulary can be used to describe various aspects of pie charts, including the size of segments, trends over time, and comparisons between different segments. Consider practicing these terms for Writing task 1 in the IELTS exam where data interpretation is required.

If you want to know more about the IELTS test, you get in touch with your nearest IDP IELTS test centre, Our team of IELTS experts will guide you with your queries.

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