IELTS vocabulary that raises your band

What the examiner is actually looking for

The public band descriptors for lexical resource reward range, accuracy and appropriacy — not difficulty. A candidate who uses ordinary words precisely, with correct collocation and spelling, scores better than one who scatters rare words in the wrong places.

Two things carry real weight: less common vocabulary used naturally, and paraphrase — saying the same idea in different words instead of repeating the question.

• Range: you can talk about a topic without repeating the same three words.
• Precision: the word you chose means exactly what you intended.
• Collocation: the words sit together the way English speakers put them ('heavy traffic', not 'strong traffic').
• Appropriacy: formal enough for the essay, natural enough for the interview.

Paraphrasing: the most valuable skill

Every task begins with a prompt, and copying that prompt earns nothing. Rewriting it in your own words shows range in the first sentence the examiner reads.

Practise by taking any question and rewriting it twice, changing the nouns, the verbs and the structure — not just swapping in synonyms.

Writing Task 1: describing data

Academic Task 1 asks you to summarise a chart, table or process. The vocabulary is narrow and learnable, and it is worth learning it properly because the same words appear in every test.

Notice that each movement word exists as both a verb and a noun, and that the pairing with the right adverb or adjective is what shows control.

• Rises: increase, rise, grow, climb, surge, soar. 'Sales rose sharply.' / 'There was a sharp rise in sales.'
• Falls: decrease, decline, drop, fall, plummet. 'Numbers declined steadily.'
• No change: remain stable, stay constant, level off, plateau.
• Degree: sharply, dramatically, significantly, slightly, marginally, gradually, steadily.
• Comparison: roughly twice as many, a third of, the highest figure, the least popular category.
• Process tasks: first, subsequently, once this is complete, the final stage involves.

Writing Task 2: arguing clearly

The essay rewards precise linking and hedged, careful claims far more than dramatic language. Overstating ('this is absolutely the worst problem in the world') reads as weak English, not strong opinion.

• Adding: furthermore, moreover, in addition, what is more.
• Contrasting: however, nevertheless, whereas, by contrast, although.
• Cause and effect: consequently, as a result, this leads to, owing to.
• Hedging: tends to, is likely to, in many cases, arguably, to some extent.
• Giving an opinion: I would argue that, there is a strong case for, on balance.
• Concluding: in conclusion, on the whole, taking everything into account.

Speaking: natural, not memorised

The Speaking test rewards flexible, natural language, including idiomatic phrases used correctly. It does not reward recited answers, and examiners recognise them quickly.

Useful language here is the language of real conversation: buying thinking time, softening an opinion, giving an example.

• Thinking time: 'That is an interesting question, let me think.' / 'I have never really considered that.'
• Opinions: 'I would say that...', 'Personally, I find...', 'It depends, really.'
• Examples: 'For instance, where I grew up...', 'A good example would be...'
• Contrast in Part 3: 'That may be true in cities, but in the countryside...'
• Correcting yourself: 'Sorry, what I mean is...' — this is normal English and costs you nothing.

Words to be careful with

Some vocabulary is so overused in IELTS preparation that it adds nothing, and some is used wrongly so often that it actively signals a lower band.

• 'Nowadays' at the start of every essay. Vary it, or simply state the fact.
• Long linking phrases such as 'last but not least' and 'in a nutshell' in academic writing — too informal.
• Thesaurus words you cannot pronounce or spell. A misused rare word costs more than a plain accurate one.
• Absolutes: 'always', 'never', 'everyone'. Hedged claims are easier to defend and read as more competent.
• Contractions in Writing. 'Do not' in the essay; 'don't' is fine when speaking.