Lexical Resource contributes 25% of the IELTS Writing score. At Band 7, the examiner expects “sufficient range to allow some flexibility and precision” with “less common vocabulary used with some awareness of style and collocation”. At Band 8, this becomes “wide resource used with flexibility and precision” with “rare minor errors”. The practical implication: accurate use of precise mid-frequency vocabulary — for example, “alleviate poverty” rather than “solve the poor problem” — scores higher than ambitious but inaccurate vocabulary. This guide provides every vocabulary tool you need: topic word lists with real example sentences, academic phrases by function, high-value collocations, and the five vocabulary mistakes most likely to cost you marks.
1. Why Vocabulary Is Worth 25% of Your Score
The IELTS Writing Task 2 is assessed against four equally weighted criteria: Task Response, Coherence and Cohesion, Lexical Resource, and Grammatical Range and Accuracy. Lexical Resource (LR) is the criterion that directly measures your vocabulary. The examiner evaluates four dimensions under LR:
- Range: Can you discuss a range of ideas using varied and appropriate vocabulary?
- Precision: Are words used with their correct meaning, in appropriate contexts?
- Style awareness: Is the register consistently formal and academic?
- Spelling and word formation:Are words spelled correctly, and are morphological forms used accurately (e.g. “environment” not “enviroment”; “beneficial” not “benefitial”)?
A critical point: “less common” vocabulary does not mean obscure or technical vocabulary. It means precise and contextually appropriate vocabulary that demonstrates genuine command of English at an academic level. The word “alleviate” is less common in everyday speech — but it is exactly the right word in an IELTS essay discussing poverty reduction.
Accuracy matters far more than impressiveness. An error in an uncommon word is more penalising than correct use of a simpler alternative. The goal is not to impress — it is to communicate precisely in formal academic English.
Three vocabulary habits to eliminate immediately:
- Thesaurus-picking: substituting words with thesaurus synonyms you do not fully understand
- Repetition: using the same key noun five or six times in 280 words
- Informal vocabulary:“kids”, “a lot of”, “stuff”, “etc.” — all inappropriate in formal Task 2 writing
2. Topic-Specific Vocabulary Lists
The five topics below account for the majority of IELTS Writing Task 2 questions. Each word or phrase below is accompanied by an example sentence written in a Task 2 academic context. Learn each item as a collocation — not in isolation.
Environment
| Word / Phrase | Example Sentence (Task 2 context) |
|---|---|
| emissions | Governments must impose strict limits on carbon emissions from industrial facilities. |
| carbon footprint | Consumers can reduce their carbon footprint by choosing public transport over private vehicles. |
| sustainability | Urban planning policies must prioritise sustainability to protect resources for future generations. |
| renewable energy | The widespread adoption of renewable energy is essential if nations are to meet their climate targets. |
| ecological impact | Rapid industrialisation has had a devastating ecological impact on river ecosystems across the region. |
| biodiversity | The destruction of rainforests poses a severe threat to global biodiversity. |
| greenhouse gases | Agriculture is responsible for a significant proportion of greenhouse gases released into the atmosphere. |
| deforestation | Deforestation for agricultural use has accelerated soil erosion and contributed to regional flooding. |
| habitat destruction | Habitat destruction is the primary driver of species extinction in the modern era. |
| climate change mitigation | International cooperation is fundamental to effective climate change mitigation strategies. |
Technology
| Word / Phrase | Example Sentence (Task 2 context) |
|---|---|
| automation | The rapid spread of automation threatens to displace millions of low-skilled workers over the next decade. |
| digital literacy | Schools must embed digital literacy across all subjects to prepare students for a technology-driven economy. |
| artificial intelligence | Artificial intelligence is increasingly used in medical diagnostics, raising important ethical questions about accountability. |
| surveillance | The expansion of government surveillance technology has prompted widespread debate about civil liberties. |
| cybersecurity | As financial transactions migrate online, cybersecurity has become a critical concern for both individuals and institutions. |
| algorithm | Social media platforms use sophisticated algorithms to curate content, which critics argue reinforces polarised viewpoints. |
| remote working | The normalisation of remote working has blurred the boundaries between professional and personal life for many employees. |
| digital divide | The digital divide between affluent and low-income communities risks entrenching existing educational inequalities. |
| technological disruption | Technological disruption in the manufacturing sector has required significant investment in workforce retraining. |
| innovation | Government funding for research and development is essential to sustaining the pace of technological innovation. |
Education
| Word / Phrase | Example Sentence (Task 2 context) |
|---|---|
| curriculum | A rigidly prescribed curriculum can limit teachers' ability to respond to the individual needs of their students. |
| pedagogy | Progressive pedagogy that encourages student-led inquiry has shown measurable benefits in long-term retention. |
| academic achievement | Parental involvement is one of the strongest predictors of academic achievement at secondary school level. |
| vocational training | Expanding access to vocational training would better prepare young people for the practical demands of the labour market. |
| critical thinking | Higher education institutions have a responsibility to cultivate critical thinking alongside subject-specific knowledge. |
| lifelong learning | In an era of rapid technological change, lifelong learning has shifted from aspiration to professional necessity. |
| educational attainment | Research consistently demonstrates a strong correlation between educational attainment and lifetime earning potential. |
| socioeconomic inequality | Addressing socioeconomic inequality in education requires targeted funding for schools in low-income communities. |
| standardised testing | Critics argue that standardised testing narrows the curriculum and disadvantages students from non-academic backgrounds. |
| tuition fees | The introduction of high tuition fees has deterred students from lower-income families from pursuing university education. |
Health
| Word / Phrase | Example Sentence (Task 2 context) |
|---|---|
| preventative healthcare | Investment in preventative healthcare reduces the long-term financial burden on public health systems. |
| sedentary lifestyle | The widespread adoption of a sedentary lifestyle, driven by desk-based work, has contributed to rising obesity rates. |
| public health policy | Effective public health policy requires coordinated action across government departments, not merely the health ministry. |
| obesity epidemic | The obesity epidemic in many developed nations places enormous strain on healthcare resources and reduces economic productivity. |
| mental health awareness | Growing mental health awareness has begun to reduce the stigma associated with seeking professional support. |
| healthcare access | Disparities in healthcare access between urban and rural communities remain a significant challenge in many countries. |
| chronic disease | The rising prevalence of chronic disease among working-age adults has significant implications for national productivity. |
| nutritional literacy | Improving nutritional literacy through school education programmes is a cost-effective intervention with long-term health benefits. |
| healthcare infrastructure | Many developing nations lack the healthcare infrastructure needed to respond effectively to disease outbreaks. |
| wellbeing | Employers have a growing responsibility to support the physical and psychological wellbeing of their workforce. |
Society and Economy
| Word / Phrase | Example Sentence (Task 2 context) |
|---|---|
| social cohesion | High levels of income inequality can erode social cohesion and increase political instability. |
| inequality | Persistent inequality in access to quality education perpetuates cycles of poverty across generations. |
| demographic shift | The demographic shift towards an ageing population places increasing pressure on pension systems and elder care services. |
| urbanisation | Rapid urbanisation in emerging economies has created both economic opportunities and severe infrastructure challenges. |
| social mobility | A fair society should provide genuine social mobility, ensuring that background does not determine destiny. |
| economic disparity | Widening economic disparity between skilled and unskilled workers is a direct consequence of technological automation. |
| cultural integration | Successful cultural integration requires active policies that both celebrate diversity and build shared civic identity. |
| globalisation | Globalisation has accelerated economic growth in many developing nations while simultaneously displacing traditional industries. |
| community engagement | Local authorities should prioritise community engagement when designing urban development projects. |
| welfare state | Proponents of the welfare state argue that it provides a necessary safety net for the most vulnerable members of society. |
Practise this vocabulary in a full essay and get instant AI feedback on your Lexical Resource score
Submit a Task 2 essay and receive a detailed breakdown of your vocabulary range, precision, and collocation use.
Try AI Writing Evaluator3. Academic Phrases by Function
Academic phrases serve specific rhetorical functions in a Task 2 essay. Rather than memorising them wholesale, learn what each phrase does and practise deploying it naturally. Below are four core functions with three phrases each, plus an example showing how each phrase fits into a real Task 2 argument.
Introducing an Argument
“It is widely acknowledged that...”
It is widely acknowledged that access to quality education is one of the most reliable pathways out of poverty.
“There is a compelling case to be made for...”
There is a compelling case to be made for government investment in renewable energy infrastructure over continued reliance on fossil fuels.
“One of the most significant factors contributing to X is...”
One of the most significant factors contributing to rising obesity rates is the proliferation of ultra-processed food marketed to children.
Giving Examples
“A notable example of this can be seen in...”
A notable example of this can be seen in Finland, where a curriculum-based approach to mental health education has reduced adolescent anxiety rates considerably.
“This is illustrated by the case of...”
This is illustrated by the case of Singapore, which has successfully combined academic rigour with vocational pathways to produce one of the world’s most skilled workforces.
“To illustrate this point, consider...”
To illustrate this point, consider the impact of social media on political discourse: algorithms designed to maximise engagement have demonstrably amplified extremist content.
Contrasting and Conceding
“While it is true that..., the evidence suggests...”
While it is true that private sector investment drives technological innovation, the evidence suggests that many foundational research breakthroughs originate in publicly funded universities.
“Despite the apparent benefits of..., there are considerable drawbacks...”
Despite the apparent benefits of standardised testing in providing objective benchmarks, there are considerable drawbacks in terms of the narrowing effect on teaching and learning.
“Admittedly, some would argue that..., though...”
Admittedly, some would argue that economic growth should take precedence over environmental protection, though this position fails to account for the long-term costs of ecological degradation.
Concluding
“On balance, the evidence suggests that...”
On balance, the evidence suggests that investment in early childhood education yields greater societal returns than equivalent spending at the tertiary level.
“In conclusion, it is clear that...”
In conclusion, it is clear that a combination of regulatory intervention and public education is required to address the growing problem of food-related chronic illness.
“Ultimately, the most effective approach would be...”
Ultimately, the most effective approach would be a coordinated international framework that binds governments to enforceable emissions reduction targets.
Using these phrases correctly
These phrases function as sentence frames — you supply the content. Practise completing each frame with arguments related to different IELTS topics. The goal is to internalise the structure so it can be deployed naturally, not recited verbatim.
4. Collocations: Why They Score Higher Than Impressive Words
A collocation is a pair or group of words that naturally appear together in English. Native speakers use collocations instinctively; non-native speakers often produce technically accurate but unnatural combinations. For example, in English we “raise awareness” — not “increase awareness” or “grow awareness”. We “tackle a problem” — not “fight a problem”. These distinctions are precisely what IELTS examiners look for under the Lexical Resource criterion.
The 20 collocations below are among the most versatile in IELTS Task 2 writing. Each is accompanied by a sentence that demonstrates its natural use in an academic context.
| Collocation | Example Sentence |
|---|---|
| raise awareness | Public health campaigns play a vital role in raising awareness of the risks associated with a sedentary lifestyle. |
| tackle the issue | Governments must tackle the issue of youth unemployment before it becomes entrenched across a generation. |
| bridge the gap | Targeted scholarship programmes can help bridge the gap in educational attainment between affluent and disadvantaged students. |
| pose a threat | Unchecked deforestation poses a significant threat to the biodiversity of tropical ecosystems. |
| bear the brunt | It is often the poorest communities that bear the brunt of environmental pollution caused by industrial activity. |
| drive economic growth | Innovation in the technology sector continues to drive economic growth in many advanced economies. |
| alleviate poverty | Access to quality education is widely regarded as the most sustainable means of alleviating poverty. |
| exacerbate inequality | Cuts to social welfare programmes risk exacerbating inequality at a time when many households are already under financial strain. |
| foster a sense of community | Well-designed public spaces can foster a sense of community among residents of densely populated urban areas. |
| implement policies | Governments must implement policies that incentivise businesses to reduce their environmental impact. |
| address concerns | Policymakers have a responsibility to address concerns about data privacy raised by the expansion of digital surveillance. |
| mitigate the effects | Tree-planting initiatives can help mitigate the effects of urban heat islands in densely built environments. |
| generate revenue | Eco-tourism has proven to be an effective way to generate revenue while preserving natural habitats. |
| undermine social cohesion | Extreme income inequality has the potential to undermine social cohesion and reduce levels of civic trust. |
| combat climate change | No single nation has the capacity to combat climate change effectively without international collaboration. |
| invest in infrastructure | Developing nations must invest in infrastructure to attract foreign direct investment and support economic development. |
| promote social mobility | A well-funded state education system is the most reliable mechanism for promoting social mobility. |
| impose restrictions | Authorities may need to impose restrictions on vehicle use in city centres to improve air quality. |
| reduce carbon emissions | Switching from coal to natural gas is one transitional strategy for reducing carbon emissions in the energy sector. |
| sustain economic development | A skilled and educated workforce is essential to sustain economic development over the long term. |
Browse the full IELTS Phrase Bank — free
Hundreds of topic collocations, functional phrases, and linking expressions — all organised by essay type and topic.
Browse Phrase Bank5. Vocabulary Mistakes to Avoid
The five mistakes below are among the most commonly penalised vocabulary errors in IELTS Writing Task 2. Each one has a specific fix.
Mistake 1: Wrong word family (affect vs effect; economic vs economical)
Using the wrong grammatical form of a word is penalised under both Lexical Resource and Grammatical Range and Accuracy. Common errors: affectis a verb (“this affects employment”); effectis a noun (“the effect on employment”). Economicmeans relating to the economy (“economic growth”); economicalmeans using resources efficiently (“an economical solution”). Practise word families systematically: learn the noun, verb, adjective, and adverb forms of each topic word.
Mistake 2: Repetition — using the same key noun five or more times
Repeating the same noun throughout a 280-word essay signals limited vocabulary range. The fix is a combination of pronouns and contextual synonyms — not random thesaurus replacements. If your topic is “technology”, vary with “this development”, “these advances”, “such innovations”, or “this trend” where contextually appropriate.
Mistake 3: Informal language in a formal essay
Informal vocabulary is penalised under both Lexical Resource (style awareness) and Task Achievement (register). Common substitutions required: “kids” → “children” or “young people”; “tons of” → “a significant number of”; “a lot of” → “considerable” or “substantial”; “etc.” → never appropriate in formal writing — end lists with a specific final item or use “among others”.
Mistake 4: Misused formal vocabulary (‘utilise’, ‘comprise of’)
“Utilise” is frequently misused as a formal synonym for “use”. It has a specific meaning: to make practical or effective use of something, particularly something not intended for that purpose. Replacing every instance of “use” with “utilise” is a vocabulary error. Separately, “comprise of” is grammatically incorrect. The correct forms are: “comprises” (without “of”) or “consists of”: the report comprises five sections; the team consists of eight members.
Mistake 5: Thesaurus vocabulary — words you have looked up but do not understand
IELTS examiners are specifically trained to identify “apparently memorised language” and vocabulary that appears inconsistent with the candidate’s overall language level. Substituting a word you understand with a synonym you do not fully understand creates precisely this impression. If you are uncertain how a word behaves — what it collocates with, whether it is countable or uncountable, whether it is transitive or intransitive — do not use it in an IELTS essay.
How to build vocabulary that actually sticks
The most effective vocabulary learning method for IELTS is contextual acquisition: reading academic texts, noting new vocabulary in context, recording collocations rather than single words, and actively using each new item in a written sentence before the end of the same study session. Passive reading alone is insufficient. Use new vocabulary within 24 hours of learning it.
Further reading:
Frequently Asked Questions
How many new vocabulary words should I learn per day for IELTS?
8–10 words per day is realistic and manageable. Crucially, learn words in context — with their collocations and in example sentences relevant to IELTS topics. Isolated word lists are far less effective than topic-based vocabulary sets practised in writing tasks.
Is it better to use simple vocabulary accurately or complex vocabulary with some errors?
Simple vocabulary used accurately always scores higher. The Lexical Resource descriptor at Band 7 rewards "less common vocabulary used with some awareness of style and collocation". A small number of errors in complex vocabulary can limit your score to Band 6. Prioritise accuracy over complexity at all times.
Should I memorise phrases to use in my IELTS essay?
Memorising full phrases verbatim is counterproductive — examiners penalise "apparently memorised language" under Lexical Resource. What you should internalise is collocations, topic vocabulary, and functional phrases for specific purposes (introducing arguments, giving examples, contrasting). The goal is genuine internalisation, not recitation.
Can I use the same vocabulary across all Task 2 topics?
General academic phrases (e.g., "it is widely argued that...") work across all topics. However, topic-specific vocabulary is essential for precision and is expected at Band 7 and above. Building separate vocabulary banks per topic (environment, technology, education, health, society) is the most efficient preparation approach.
How many uncommon words do I need in a Band 7 essay?
There is no fixed number, but most Band 7 essays in 280 words contain 8–15 instances of less common vocabulary distributed naturally throughout. Distribution matters — front-loading unusual words in the introduction and then defaulting to simple language is noticeable and penalised.