Vocabulary is one of the four criteria you are marked on in both the Writing and Speaking tests. Using a wide range of vocabulary naturally and accurately is essential for achieving Band 7 and above.
But here is the thing: you do not need to know thousands of obscure words. What you need is a solid vocabulary of about 2,000-3,000 words that you can use flexibly and accurately. The list below contains 50 words that appear frequently in IELTS topics. Learn them, practise using them, and you will notice a difference in your writing and speaking.
Academic and Formal Words
Significant (adjective) — important or noticeable. “There has been a significant increase in the number of students studying abroad.”
Substantial (adjective) — large in size or amount. “The government invested substantial sums in renewable energy.”
Considerable (adjective) — large or significant. “The project required considerable effort and resources.”
Comprehensive (adjective) — complete and thorough. “The report provides a comprehensive analysis of the issue.”
Fundamental (adjective) — basic and essential. “Education is a fundamental right for all children.”
Inevitable (adjective) — certain to happen. “Climate change is inevitable unless we take action now.”
Controversial (adjective) — causing disagreement. “The new policy has been highly controversial.”
Detrimental (adjective) — harmful. “Excessive screen time can be detrimental to children’s development.”
Beneficial (adjective) — helpful or advantageous. “Regular exercise is beneficial for both physical and mental health.”
Prevalent (adjective) — common or widespread. “Obesity is increasingly prevalent in developed countries.”
Profound (adjective) — very great or intense. “The internet has had a profound impact on the way we communicate.”
Verbs That Boost Your Writing
Facilitate (verb) — to make something easier. “Technology facilitates communication between people in different countries.”
Undermine (verb) — to weaken or damage. “Corruption undermines public trust in institutions.”
Alleviate (verb) — to make something less severe. “The new measures aim to alleviate poverty in rural areas.”
Exacerbate (verb) — to make something worse. “The housing shortage has been exacerbated by population growth.”
Implement (verb) — to put into effect. “The government plans to implement new environmental regulations.”
Enhance (verb) — to improve. “The new software enhances productivity in the workplace.”
Diminish (verb) — to reduce or become less. “The importance of traditional skills has diminished in the digital age.”
Constitute (verb) — to form or make up. “Women constitute the majority of the workforce in healthcare.”
Advocate (verb) — to publicly support. “Many experts advocate a reduction in meat consumption.”
Emphasise (verb) — to give special importance to. “The report emphasises the need for urgent action on climate change.”
Linking Words and Phrases
Nevertheless — despite that. “The task was difficult. Nevertheless, they managed to complete it on time.”
Consequently — as a result. “The population has grown rapidly. Consequently, demand for housing has increased.”
Furthermore — in addition. “The plan is expensive. Furthermore, it may not be effective.”
Conversely — in contrast. “Some people thrive under pressure. Conversely, others find it overwhelming.”
Notwithstanding — despite. “Notwithstanding the challenges, the project was a success.”
How to Learn and Use These Words
Learning vocabulary is not just about memorising definitions. You need to know how to use words in context. Here is a method that works:
Learn words in collocations. Do not just learn “significant” — learn “significant increase”, “significant impact”, “significant change”. Collocations are words that naturally go together, and using them correctly is what separates Band 7 from Band 9.
Use new words in your writing and speaking. After learning a new word, write three sentences using it. Then try to use it in your speaking practice. The more you use a word, the more natural it will feel.
Read widely. When you encounter a new word in context, you are more likely to remember it. Pay attention to how writers use vocabulary to express ideas precisely.
Keep a vocabulary notebook. Write down new words, their meanings, example sentences, and collocations. Review your notebook regularly.
With consistent effort, you will build a vocabulary that serves you well in the IELTS test and beyond. Good luck!
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