IELTS Marking Guide: Lexical Resource
Lexical Resources are one of the four key criteria used to evaluate the IELTS Writing and Speaking sections. It measures your ability to use vocabulary accurately, appropriately, and flexibly. A strong Lexical Resource score demonstrates a wide range of vocabulary, precise word choice, and effective paraphrasing. This guide explains the Lexical Resource criterion in detail, its importance, and how to achieve a high band score.
Table of Contents
Understanding Lexical Resources

Lexical Resources refer to your command of vocabulary and your ability to:
- Use a wide range of words and phrases.
- Apply vocabulary accurately to the context.
- Demonstrate appropriate collocations (words that naturally go together).
- Paraphrase effectively.
- Use less common and topic-specific vocabulary where relevant.
IELTS Band Descriptors for Lexical Resources
Band 9
- Uses a wide range of vocabulary with precision.
- Effectively uses less common and topic-specific words.
- Demonstrates a full understanding of collocations and idiomatic expressions.
- Paraphrases naturally and accurately.
Band 8
- Skillfully uses a wide range of vocabulary.
- Shows some flexibility with less common words and collocations.
- Paraphrasing is accurate and effective.
- Rare minor errors in word choice.
Band 7
- Uses a sufficient range of vocabulary to discuss topics clearly.
- Attempts to use less common vocabulary with some success.
- Paraphrasing is evident but may not always be natural.
- Occasional inappropriate word choices or slight inaccuracies.
Band 6
- Has an adequate range of vocabulary for the task.
- Some use of less common vocabulary, but errors may limit effectiveness.
- Paraphrasing is evident but may be repetitive or awkward.
- Frequent errors in word choice or collocations.
Band 5 and Below
- Limited vocabulary affects the ability to communicate ideas effectively.
- Rare or incorrect use of less common vocabulary.
- Paraphrasing is minimal or inaccurate.
- Errors in word choice or collocations are frequent and disruptive.
Importance of Lexical Resources
1. Effective Communication
A rich vocabulary helps convey ideas clearly and persuasively. For example, in Task 2, a wide range of words allows you to present arguments with depth and variety.
2. Demonstrating Language Proficiency
Lexical diversity showcases your ability to understand and apply advanced English, differentiating higher-scoring candidates from lower-scoring ones.
3. Avoiding Repetition
Using varied vocabulary prevents redundancy and keeps your writing or speech engaging.
4. Enhancing Paraphrasing Skills
Strong paraphrasing skills demonstrate your ability to restate ideas in different ways, which is essential for tasks that require reformulating prompts.
Strategies to Improve Lexical Resources

1. Expand Your Vocabulary
- Read Widely: Read newspapers, academic articles, and novels to encounter new words.
- Maintain a Vocabulary Journal: Write down new words, their meanings, synonyms, antonyms, and example sentences.
- Learn Topic-Specific Vocabulary: Focus on common IELTS topics such as education, health, environment, and technology.
2. Use Collocations
- What Are Collocations? These are natural word pairings (e.g., “make a decision,” “heavy traffic”).
- How to Practice: Use online resources or collocation dictionaries to identify and practice common pairings.
3. Practice Paraphrasing
- Rewrite sentences from articles or practice questions using different vocabulary.
- Use synonyms and restructure sentences while keeping the meaning intact.
4. Avoid Overuse of Simple Words
- Replace overused words like “good,” “bad,” and “important” with more precise alternatives (e.g., “beneficial,” “detrimental,” “crucial”).
5. Use Less Common Vocabulary
- Introduce advanced vocabulary relevant to the topic (e.g., “mitigate” instead of “reduce,” “inevitable” instead of “unavoidable”).
- Avoid forcing uncommon words if they don’t fit naturally.
6. Practice Writing and Speaking Regularly
- Write essays and letters on diverse topics to practice applying new vocabulary.
- Record yourself speaking and analyze your word choices.
7. Avoid Memorized Phrases
- Examiners can identify when candidates use memorized language that doesn’t fit the context. Use original vocabulary that reflects your understanding.
8. Seek Feedback
- Share your writing or speaking samples with a teacher or language partner to identify repetitive or inappropriate word usage.
Examples of Lexical Resources in Action
Example 1: Writing Task 2
Question: “Some people believe that zoos should be banned as they are cruel to animals. To what extent do you agree or disagree?”
Low Band Response:
“Zoos are bad for animals because they make animals unhappy. Animals should live in the wild, not in zoos. Zoos can be harmful.”
High Band Response:
“Zoos are often criticized for being detrimental to animal welfare, as they restrict the natural behavior of animals by confining them to limited spaces. While some argue that zoos serve educational purposes, I believe their negative impact outweighs these benefits.”
Example 2: Speaking Part 3
Question: “How has technology changed the way we work?”
Low Band Response:
“Technology has made work faster and easier. People can use computers to do their work. It helps a lot.”
High Band Response:
“Technology has revolutionized the workplace by streamlining processes and enhancing efficiency. For instance, cloud computing enables seamless collaboration, allowing employees to work remotely while maintaining productivity.”
Common Mistakes in Lexical Resources

1. Using Words Incorrectly
Avoid using advanced vocabulary if you are unsure of its meaning or context. For example:
- Incorrect: “The company faced a catastrophe in their sales this quarter.”
- Correct: “The company experienced a significant decline in sales this quarter.”
2. Overuse of Synonyms
While synonyms are essential for paraphrasing, overusing them can make your writing unnatural. For instance:
- Overdone: “The government needs to rectify, amend, and repair the problem.”
- Balanced: “The government needs to address the problem effectively.”
3. Relying on Basic Vocabulary
Words like “good,” “bad,” “nice,” and “thing” lack precision. Use more descriptive alternatives, such as “beneficial,” “detrimental,” “pleasant,” or “aspect.”
4. Using Informal Language in Formal Writing
Avoid slang, contractions, or overly casual phrases in Writing Task 1 (formal) and Task 2.
Tips for Specific IELTS Tasks
Task 1: Academic Writing
- Use vocabulary to describe data accurately: “fluctuate,” “decline,” “increase significantly.”
- Paraphrase task instructions without repeating them verbatim.
Task 1: General Writing
- Match the tone to the letter type. For example, use polite and formal language in a complaint letter but a friendly tone in an informal letter.
- Use topic-specific phrases like “I would appreciate it if…” for formal letters.
Task 2: Essay Writing
- Use discourse markers effectively: “however,” “moreover,” “consequently.”
- Include topic-specific vocabulary to discuss complex ideas (e.g., “environmental sustainability,” “technological advancements”).
Speaking
- Use idiomatic expressions naturally (e.g., “a blessing in disguise”).
- Avoid over-reliance on simple phrases like “I think” or “I believe.”
Conclusion
Lexical Resources are critical components of IELTS Writing and Speaking that demonstrates your ability to use vocabulary effectively, accurately, and flexibly. To achieve a high score, candidates should expand their vocabulary, practice paraphrasing, and focus on topic-specific and less common words. By avoiding common mistakes, practicing regularly, and seeking feedback, you can significantly improve your performance in this criterion and move closer to achieving your desired IELTS band score.
For more on lexical resources, please click here
For other articles on IELTS marking guide, click
- IELTS Marking Guide – Task Achievement
- IELTS Marking Guide – Grammatical Range Accuracy