Collocations for IELTS Writing: The Word Pairings Examiners Reward

Most candidates prepare vocabulary by memorising lists of impressive single words, then wonder why their Lexical Resource score stays at 6.5. The examiner is not counting rare words. The public band descriptors tell examiners to look for something more specific: whether your words sit naturally next to each other. That skill is called collocation, it is named explicitly in the Band 7 descriptor, and it is far easier to train than most candidates realise.

What a collocation actually is

A collocation is a pairing of words that native and proficient speakers habitually use together. You make a mistake, but you cause damage. Rain is heavy, not strong, while a smoker is a heavy smoker, not a big one. There is no logic to memorise here; these are conventions, and fluent English is largely built out of them. When your pairings match the conventions, your writing reads as natural even when the individual words are ordinary. When they do not, the examiner notices instantly, because a broken pairing is exactly the kind of error that never appears in proficient writing.

Why the band descriptors reward collocation

This is not a hidden preference. The public Lexical Resource descriptor for Band 7 credits candidates who use less common lexical items 'with some awareness of style and collocation'. In other words, collocation is written into the criterion by name, alongside the allowance that 'occasional errors in word choice' are acceptable at this level. At Band 6, the descriptor describes 'some errors in spelling and/or word formation' and word choice that is adequate rather than natural. The gap between those two bands is not the size of your vocabulary. It is whether the words you already know are deployed in their natural combinations. For the full picture of how Lexical Resource fits alongside the other three criteria, see our scoring guide.

Word lists teach words. They do not teach pairings.

The standard way candidates study vocabulary is a synonym list: big becomes enormous, important becomes crucial, problem becomes issue. The trouble is that synonyms are not interchangeable inside pairings. You can say a crucial factor, but 'a crucial amount' fails where 'a considerable amount' works. You can take a decision or make a decision, but you can only reach a compromise. Knowing a word, in the sense the examiner cares about, means knowing which verbs, adjectives and prepositions it travels with. That is why the strongest preparation swaps list-learning for chunk-learning: you record 'pose a threat to' as one item, not 'pose' and 'threat' as two.

18 high-value collocations for common IELTS themes

The pairings below are chosen for coverage: each one fits many different questions inside its theme, and the themes are the ones that dominate the exam. They pair naturally with the Task 2 questions in our question bank, so you can test each one in a real essay the day you learn it.

Education and work:

• acquire knowledge and skills, the standard academic pairing where 'get knowledge' sounds conversational
• widen access to education, useful in almost any essay about fairness or opportunity
• academic performance, the natural way to talk about results and grades
• job satisfaction, which collocates with high, low, greater and reduced
• strike a balance between work and leisure, a chunk that fits nearly every lifestyle question

Environment and health:

• tackle climate change, where tackle also pairs with crime, poverty and congestion
• reduce carbon emissions, the precise verb where 'stop' or 'cut down' reads as vague
• renewable energy sources, a fixed chunk worth writing as one unit
• lead a sedentary lifestyle, the natural pairing for essays on exercise and screen time
• place a strain on health services, which also works with public transport and infrastructure

Technology, government and society:

• technological advances, the standard subject for essays about change
• pose a threat to, the verb 'pose' pairs with threat, risk and challenge
• heavily reliant on, the natural intensifier where 'very reliant' sounds flat
• implement a policy, governments implement, introduce and enforce policies rather than 'make' them
• impose a tax on, the precise verb for essays about regulation
• play a vital role in, one of the highest-coverage chunks in academic English
• raise awareness of, where 'grow' or 'increase awareness' both misfire
• a pressing issue, the natural adjective where 'a very big issue' costs you register

The wrong pairings examiners see every day

Certain broken pairings appear so often in candidate writing that they function as Band 6 signatures. The most common family is verb-noun errors: 'make a research' instead of conduct research, 'do a mistake' instead of make a mistake, 'make damage' instead of cause damage, and 'get knowledge' instead of acquire or gain it. Close behind are adjective-noun mismatches such as 'big importance' for great importance and 'strong rain' for heavy rain. None of these stops the reader understanding you, which is precisely the point: they are pure naturalness errors, and naturalness is what the Lexical Resource criterion measures at Band 7.

Not one rare word was added. Every change is a repaired pairing: pay attention, cause damage, pose a problem, and the natural intensifier significant. This is what 'awareness of collocation' means in practice.

How to practise collocations so they survive exam pressure

Reading a list once does nothing, because collocation errors happen at retrieval, in the middle of a timed essay, when your attention is on ideas rather than word partners. The practice that works forces retrieval.

• Record chunks, not words. When you meet a useful pairing, write the whole chunk in a sentence of your own. 'Impose a tax on' goes into your notes as 'Many governments impose a tax on sugary drinks', never as 'impose = put'.
• Learn by theme, five at a time. Pick one theme from the lists above, learn its pairings, then write one timed paragraph that uses all five. Retrieval inside real writing is the step list-studying skips.
• Drill the classic errors directly. Our vocabulary drills include a dedicated collocations exercise built around the verb-noun and adjective-noun pairings candidates break most often.
• Keep a mispairing log. When feedback flags a broken pairing in your writing, record the wrong version and the fix side by side. Most candidates repeat the same handful of broken pairings, so the log shrinks fast.

Collocation control also compounds with the rest of your lexical work. The Task 2 vocabulary guide covers topic vocabulary in depth, and paraphrasing the question well, which our paraphrasing guide breaks down, is largely a matter of swapping one natural pairing for another.

The quickest way to find out which pairings you are breaking is to see them flagged in your own writing. Paste a recent essay into the grader and check the word choice feedback under Lexical Resource: the mispairings you repeat are your highest-value fixes.