How to Improve Your IELTS Lexical Resource Score

Lexical Resource is the most misunderstood scoring criterion in IELTS Writing. Most candidates think it is about using "big words" — so they memorise lists of impressive-sounding vocabulary and force them into their essays. The result is awkward, unnatural writing that actually lowers their score.

Here is what Lexical Resource actually measures: Can you choose the right word for the right context? Can you express ideas with precision? Can you paraphrase effectively? Can you use collocations naturally?

None of these things require "big" words. They require precise words.

This guide shows you what examiners actually look for, the specific mistakes that keep your Lexical Resource score at Band 6, and practical strategies to reach Band 7+.

What Examiners Actually Assess

The Lexical Resource criterion evaluates four things:

1. Range of Vocabulary

Can you use different words to discuss the same topic? If you use "important" five times in one essay, your range is limited. If you use "important," "essential," "critical," "significant," and "vital" — each in the right context — your range is strong.

But range is NOT about using as many different words as possible. It is about having enough vocabulary to express your ideas without repetition or vagueness.

2. Precision of Word Choice

Precision means choosing the word that fits the context exactly. Not a word that roughly means the same thing — the word that means exactly the right thing.

General (Band 6): "The government should do something about pollution."

Precise (Band 7): "The government should implement stricter emissions regulations."

"Implement" is more precise than "do." "Stricter emissions regulations" is more precise than "something about pollution." The meaning is clearer, and the examiner can see that you understand the topic.

3. Less Common Vocabulary

The band descriptors mention "less common lexical items" at Band 7 and above. This does NOT mean obscure or rare words. It means vocabulary that goes beyond the most basic level.

Basic: big, good, bad, important, many, things Less common: significant, effective, detrimental, essential, numerous, factors

These are not "big" words. They are everyday academic vocabulary that educated writers use naturally. The key is that they are used accurately and naturally, not forced.

4. Paraphrasing Ability

Can you express the same idea in different words? This is tested directly in your introduction (where you must paraphrase the essay question) and throughout the essay (where you should avoid repeating the question's exact language).

Question language: "Some people think that university education should be free."

Weak paraphrase: "Some people think that university education should be free." (No paraphrase — just copied)

Adequate paraphrase: "Some people believe that higher education should be offered at no cost."

Strong paraphrase: "There is a growing argument that tuition fees should be abolished to ensure universal access to higher education."

Band 6 vs Band 7 Vocabulary in Context

Essay topic: The impact of technology on communication

Band 6 Vocabulary

"Technology has changed the way people communicate. Now people use their phones to talk to each other instead of meeting face to face. This has both good and bad effects on society. On the one hand, it is easier to stay in touch with friends and family. On the other hand, some people think that technology makes people less social."

Problems:

• Repetitive: "people" appears 4 times, "technology" appears 2 times
• Vague: "good and bad effects," "stay in touch," "less social"
• No topic-specific vocabulary
• No effective paraphrasing

Band 7 Vocabulary

"Digital communication tools have fundamentally transformed interpersonal interaction. Smartphones and social media platforms now serve as the primary means of maintaining relationships, replacing much of the face-to-face contact that characterised previous generations. While this shift has enhanced connectivity — particularly for those in long-distance relationships or diaspora communities — critics argue that it has eroded the depth and quality of human connection."

Strengths:

• Precise: "interpersonal interaction," "primary means of maintaining relationships," "eroded the depth"
• Topic-specific: "digital communication tools," "social media platforms," "diaspora communities"
• Natural collocations: "fundamentally transformed," "enhanced connectivity"
• Effective paraphrasing: no repeated terms, the same ideas expressed in varied language

Practical Strategies for Improvement

Strategy 1: Build Topic-Specific Vocabulary Banks

IELTS essays cover predictable topics. Build a vocabulary bank for each one:

Education:

• allocate / funding / tuition fees / curricula / tertiary education
• academic performance / learning outcomes / pedagogical approach
• dropout rate / enrolment / literacy rate / vocational training

Technology:

• digital infrastructure / automation / connectivity / cybersecurity
• data privacy / surveillance / screen time / digital literacy
• obsolescence / innovation / disruptive technology

Health:

• public health policy / life expectancy / preventive care
• sedentary lifestyle / malnutrition / epidemic / healthcare provision
• mental health awareness / rehabilitation / wellbeing

Environment:

• carbon emissions / renewable energy / sustainability / deforestation
• biodiversity loss / waste management / ecological footprint
• conservation / climate adaptation / pollution mitigation

For each term, learn it in context — in a full sentence, with the correct preposition and collocation. Do not memorise isolated words.

Strategy 2: Replace General Words Systematically

After writing each essay, scan for these general words and replace them:

General	Precise Alternatives
good	effective, beneficial, advantageous, constructive
bad	detrimental, harmful, counterproductive, adverse
important	essential, critical, significant, pivotal
big	substantial, considerable, extensive, significant
many	numerous, a substantial number of, a growing proportion of
things	factors, measures, aspects, elements
do	implement, conduct, undertake, establish
get	obtain, acquire, achieve, receive
give	provide, allocate, offer, grant
show	demonstrate, indicate, reveal, illustrate

Important: These replacements must fit the context. "Substantial" fits "a substantial increase" but not "a substantial idea." Always check that the precise word works in the specific sentence.

Strategy 3: Learn Collocations, Not Individual Words

A collocation is a word pair that naturally goes together. Using correct collocations signals to the examiner that you use English naturally, not mechanically.

Common IELTS collocations:

• make: a decision, progress, an effort, a contribution
• do: research, damage, justice, harm
• take: action, measures, responsibility, steps
• have: an impact, an effect, access to, an influence on
• raise: awareness, concerns, standards, funds
• pose: a threat, a risk, a challenge, a danger

Error: "The government should make research on this topic." Correct: "The government should conduct research on this topic."

Strategy 4: Paraphrase the Question in Your Introduction

Your introduction should paraphrase the essay question — not copy it. Practice this skill separately:

Question: "Some people believe that children should start learning a foreign language at primary school."

Practice paraphrases:

1. "There is a growing consensus that foreign language instruction should begin in the early years of schooling."
2. "Whether language education should be introduced at the primary level is a widely debated topic."
3. "Early exposure to a second language during primary education is increasingly advocated by educators and parents."

Each version expresses the same idea without copying the question's exact words.

Strategy 5: Read Model Essays and Note Vocabulary Choices

The fastest way to learn natural academic vocabulary is to read Band 7-8 sample essays. As you read, highlight:

• Precise word choices (what general word did the writer avoid?)
• Collocations (which words go together?)
• Paraphrasing techniques (how did the writer restate ideas?)

Then try to use those same techniques in your own writing.

The Vocabulary Trap: Words to Avoid

"Plethora" — Overused by IELTS candidates and often used incorrectly. Use "many" or "numerous" instead.

"Myriad" — Same problem. "A wide range of" or "various" works better.

"Notwithstanding" — This is formal legal language. "Despite" or "although" is more natural in academic essays.

"Aforementioned" — Use "this," "such," or "the [noun] mentioned above."

"Ramification" — Usually misused. "Consequence" or "effect" is safer and clearer.

The pattern: avoid words you have only encountered in IELTS vocabulary lists. If you have never seen a word used naturally in a news article, textbook, or academic paper, do not use it in your essay.

For a broader understanding of how vocabulary fits into the overall scoring system, see IELTS writing band descriptors explained. To fix the grammar errors that often accompany vocabulary improvements, see common grammar mistakes in IELTS writing.

Quick Reference: Lexical Resource Checklist

• No word is repeated more than twice in the essay (except basic function words)
• Introduction paraphrases the question — no copied phrases
• At least 5-6 precise vocabulary choices replace general words
• Collocations are natural (conduct research, not make research)
• No forced "impressive" words (plethora, notwithstanding, myriad)
• Topic-specific vocabulary is used where appropriate
• Every "less common" word is used accurately in context

Get Your Vocabulary Assessed

Submit your essay and receive a detailed Lexical Resource score with feedback on your word choice, paraphrasing, and vocabulary range — plus specific suggestions for improvement.

Get expert evaluation →See Pricing