IELTS vocabulary for band 7 means using words precisely and in natural combinations, not using rare words. The Lexical Resource descriptor at band 7 asks for "flexibility and precision" and "less common lexical items with some awareness of style and collocation". You reach it by learning collocations inside the five topics that come up most, by paraphrasing without changing the meaning, and by dropping the memorised phrases that examiners recognise instantly.
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What IELTS vocabulary for band 7 actually means
Three things separate band 6 vocabulary from band 7. First, precision: band 6 says "the government should do something about pollution"; band 7 says "the government should regulate industrial emissions". Second, collocation: band 6 produces "make a research" and "strong rain"; band 7 produces "conduct research" and "heavy rain". Third, range without strain: band 7 uses a less common word where it fits and a common word where that is more natural, while band 6 either repeats the same word or forces in a rare one.
Precision is also what makes an argument convincing. "Pollution is bad for people" is a claim; "air pollution raises the rate of respiratory illness in children" is a point an examiner can follow and credit under Task Response as well. Better vocabulary therefore lifts two criteria at once, which is why it is worth the daily routine described below.
Spelling and word formation also sit under this criterion. "Enviroment" and "economical growth" (for "economic growth") are Lexical Resource errors, and they are cheap to fix because the same handful of words appear in essay after essay.
Topic clusters that come up most
Five topics dominate Task 2 and Speaking Part 3. Learn eight collocations in each, as phrases rather than single words, and you cover most of the essays you will ever write. Use the table as a weekly checklist.
| Topic | Collocations to own |
|---|---|
| Education | acquire knowledge · academic performance · compulsory schooling · vocational training · lifelong learning · drop out of school · a well-rounded education · rote learning |
| Environment | carbon emissions · renewable energy · deplete natural resources · environmental degradation · impose a tax on · biodiversity loss · sustainable development · single-use plastics |
| Technology | digital literacy · a sedentary lifestyle · face-to-face interaction · data privacy · automate routine tasks · the digital divide · rely heavily on · keep pace with |
| Health | a balanced diet · preventive care · chronic illness · public health campaigns · processed food · life expectancy · mental well-being · a sedentary job |
| Work | job security · work–life balance · remote working · career prospects · the gig economy · staff turnover · a competitive salary · flexible hours |
Notice that none of these words are rare. They are the words an educated native speaker would use on the topic, which is exactly what the descriptor means by "appropriate".
Paraphrase without distortion
Paraphrasing the question is expected, but a paraphrase that changes the meaning costs Task Response marks as well as vocabulary marks. "Children" is not "kids" in formal writing and is not "teenagers" at all. "Government" can become "the state" or "public authorities" but not "politicians". Safe paraphrase changes the grammar more than the words: "Some people think advertising is harmful" becomes "Advertising is considered harmful by some", and the nouns stay. Change one word, keep the rest, and the meaning survives. If you cannot find a safe synonym, keep the original word; an exact repetition costs nothing, while a wrong synonym costs marks on two criteria.
In the body of the essay, you do not need to avoid repeating the key noun. Examiners expect "education" to appear many times in an essay about education. What they do not want is the same adjective ("important", "good", "bad") doing all the work.
Words to stop using
- "Plethora", "myriad", "a vast array of": memorised intensifiers that mark an essay as coached. Use "many" or "a wide range of".
- "In a nutshell", "last but not least", "every coin has two sides": clichés that examiners have read thousands of times.
- "Nowadays", "in this modern era", "since the dawn of time": empty openers. Start with the topic.
- "Very" + adjective: "very important" is band 6; "crucial", "essential" or simply "important" is better.
- "Things", "stuff", "a lot of": vague nouns and quantifiers. Name the thing.
Removing these does more for your Lexical Resource score than adding any new word, because each one is a signal the examiner is trained to notice.
A 15-minute daily routine
Five minutes: read one paragraph from a quality newspaper on one of the five topics and copy out three collocations, not three words. Five minutes: write three sentences using them on a different sub-topic, so you are using rather than copying. Five minutes: review yesterday's three and last week's fifteen. In a month you own about sixty collocations across the topics that matter, and they appear in your essays without effort. Speaking benefits as much as writing, so say the sentences aloud. The IELTS speaking practice tool will show you whether the words came out naturally, because a collocation you can only write is not yet yours.
Practise with Langujet
The Langujet IELTS guide links every section of the test with the vocabulary that section rewards, and our post on the IELTS Writing Task 2 mistakes by band shows how inflated vocabulary stops a 7 becoming an 8. Submit an essay for criteria-based writing correction and read the Lexical Resource notes: the collocation errors it flags are your next week's list.
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