IELTS Vocabulary for Band 7: Precision Beats Rarity
Learning rare words is the most popular and least effective vocabulary strategy in IELTS. The descriptors reward precision and natural use — which is a different skill and a much faster one.
Lexical Resource is 25% of your Writing score and 25% of your Speaking score. It is also the criterion most often attacked with the wrong strategy: memorising lists of impressive words in the belief that using them raises the band.
It does not, and the descriptors explain why. Lexical Resource rewards range used precisely and naturally. A rare word used slightly wrongly is evidence that you do not control it, and it scores below a common word used exactly right.
What actually costs you Lexical Resource marks
- Wrong collocation. *Do a mistake*, *make research*, *strong rain*. The individual words are known; the pairing is not.
- Register mismatch. Slang in an essay, or stiff academic vocabulary in a Part 1 answer about your hometown.
- Thesaurus substitution. Swapping a word for a synonym that does not mean quite the same thing — *utilise* for *use*, *plethora* for *many*, *ameliorate* for *improve*.
- Repetition for lack of alternatives. Using the same three adjectives throughout because nothing else is available.
The single clearest signal of a memorised word list
A sentence in which one word is dramatically more formal than everything around it. Examiners see it constantly, and it reads as inserted rather than known.
Nowadays, a plethora of individuals utilise social media, which ameliorates their communication but also engenders a myriad of detrimental effects on society.
Most people now use social media daily, which has made staying in touch easier while quietly reshaping what counts as a friendship.
The second sentence has no rare vocabulary at all. It scores higher because every word is doing a job, the collocations are natural, and the idea is specific.
Learn collocations, not words
A word learned alone is a word you will pair wrongly. Learn the phrase.
| Instead of learning | Learn |
|---|---|
| research | conduct research · research suggests · a growing body of research |
| decision | make a decision · a difficult decision · reach a decision |
| problem | tackle a problem · a pressing problem · the root of the problem |
| effect | have an effect on · a lasting effect · the knock-on effects |
| policy | introduce a policy · policy makers · a policy aimed at |
The five-word rule
Never write a new word in your notes alone. Write it inside a five-word phrase you would actually say. It takes three seconds longer and it is the difference between recognising a word and being able to use it.
The vocabulary that is actually worth having
Rather than general advanced lists, build vocabulary for the specific jobs each part of the exam asks you to do.
Describing change — Writing Task 1
- Verbs: rise, climb, surge, peak, level off, dip, fall, plummet
- Nouns: a sharp increase, a steady decline, a slight fluctuation, an upward trend
- Adverbs: sharply, steadily, gradually, marginally, dramatically
- Comparison: roughly double, a third of, marginally higher than, in contrast to
Argument — Writing Task 2 and Speaking Part 3
- Claiming: the strongest argument is, it is widely accepted that, the evidence points to
- Conceding: while it is true that, admittedly, this is not to say that
- Hedging: tends to, in most cases, particularly where, arguably
- Causing: leads to, results in, stems from, is driven largely by
Everyday life — Speaking Part 1
This is where most candidates are surprisingly weak, because they have studied academic vocabulary and then have to talk about their commute. Practise the ordinary: *I tend to*, *I'm not really into*, *it depends on the day*, *I've got into the habit of*.
How to actually retain it
- 1Take words from what you read, not from lists. A word met in context comes with its collocations attached.
- 2Cap it at five to eight new items a day. More than that is not retained and the review load compounds until you stop.
- 3Review on a spacing schedule — the next day, three days later, a week later. Retrieval is what fixes a word, not re-reading it.
- 4Use each new item in one sentence of your own within 24 hours. Preferably out loud.
- 5Retire words you keep getting wrong. If a word resists after four attempts, you do not need it. Precision matters more than coverage.
Key takeaways
- Lexical Resource rewards precision and natural use, not rarity.
- A mis-used sophisticated word scores below a correctly used ordinary one.
- Learn collocations, never isolated words — use the five-word rule.
- Build vocabulary for specific jobs: describing change, arguing, and everyday life.
- Five to eight new items a day, reviewed on a spacing schedule and used in your own sentence.
- Take words from what you read rather than from lists.
Now find out where you actually stand
Reading about the band descriptors only gets you so far. Submit one real task and see your band, criterion by criterion, with the specific things costing you marks.
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