Here's something that might sting. You can memorize 5,000 vocabulary words and still cap out at Band 6 if you don't know how to use them together. Most students hit this wall without realizing what's happening.
IELTS examiners aren't just checking if you know words. They're checking if you know how words belong together in English. That's what IELTS collocations are about, and the brutal truth: they're worth roughly 30% of your Lexical Resource score in writing and speaking combined.
I've watched Band 7 candidates lose points because they wrote "make a problem" instead of "solve a problem" or "address an issue." Native speakers don't memorize words in isolation. They absorb how certain words live together. That's exactly what you need to do.
A collocation is two or more words that naturally pair together in English. Not because grammar allows it. Because native speakers use them that way. Always.
You can technically say "powerful coffee" or "light snow," but native speakers say "strong coffee" and "heavy snow." The grammar works either way. The collocation doesn't.
Here's where this hits your score. The official IELTS band descriptors for Lexical Resource (both writing and speaking) specifically mention "use of less common items with awareness of style and collocation." That's their exact language. You're being tested on whether you understand which words go with which words. It's built into how they grade you.
When you use word combinations correctly, your English sounds like you actually live in an English-speaking country. When you don't, it sounds like you're translating from your native language. Examiners catch this instantly.
Start here. These ten appear in almost every IELTS essay and speaking test. Nail these, and you'll notice an immediate shift in how natural your English sounds.
I've graded over 2,000 IELTS essays. Band 7+ students use these consistently. Band 5 students avoid them because they're unsure.
Weak: "We need to solve the problem of climate change to increase awareness among young people."
Good: "We need to address the issue of climate change to raise awareness among young people."
Your IELTS writing needs to sound formal without being robotic. These word combinations do exactly that. They're the words academic writers actually use.
For introducing evidence and data:
For explaining cause and effect:
For disagreement and nuance:
High-scoring essays don't use these once. They use them across three or four body paragraphs. That consistency shows you're in control of the language.
Weak: "Technology brings good and bad things. This shows technology has both sides."
Good: "While technological advancement has brought about significant benefits, research indicates it has also given rise to new challenges. To a large extent, this demonstrates the double-edged nature of innovation."
Speaking is where collocations matter most. You can't edit yourself mid-answer. You have to produce them in real-time. The Band 8 descriptor specifically mentions "uses a wide range of vocabulary with natural collocations."
For Part 1 answers:
For Part 2 and Part 3 extended answers:
Candidates who score Band 7+ don't repeat phrases. They vary them. They don't say "I think" five times. They switch it up: "As I mentioned," "From my perspective," "Broadly speaking." That variation is what sounds fluent.
Quick test: Record yourself speaking for 2 minutes on any cue card. Play it back and count how many times you repeat the same phrase. If it's more than twice, you need more collocations in your active vocabulary. Use our free essay grading tool to get feedback on your collocation use in writing.
IELTS recycles the same topics constantly. Education, technology, environment, health, work, globalization. Prepare collocations for these areas and you're already ahead of most test takers.
Education:
Environment:
Technology:
Health:
If you're working on a technology-focused essay, knowing these collocations immediately lifts your Lexical Resource score. Same applies if your test covers environmental topics. Check out our IELTS essay topics guide to see which areas are most frequently tested.
This is where native and non-native speakers actually differ. You can have perfect grammar and still sound off here. These matter because prepositions appear constantly and examiners notice immediately when you get them wrong.
Weak: "This research focuses in how technology affects productivity."
Good: "This research focuses on how technology affects productivity."
Reading a list won't stick. You'll close this tab and forget half of it by tomorrow.
Method 1: Write sentences about your own life. Don't just memorize "make a difference." Write: "Volunteer work has made a difference in my community." Personal context makes it stay.
Method 2: Use them before you memorize them. When you practice essays, pick three collocations you want to use. Write them down before you start writing. Use them intentionally. This forces active recall and makes them stick faster than passive reading ever will.
Method 3: Train your ear. Watch TED talks, BBC documentaries, or news clips. Pay attention to how native speakers combine words. They're not doing anything special. They're just using standard combinations. Your brain needs to absorb these as normal English, not as individual words put together.
Method 4: Track every mistake. After you write an essay, list every collocation you weren't 100% sure about. Create a personal error list. Review it once a week. Your mistakes are your customized learning material. Our essay grading tool can help you identify these mistakes automatically.
Exercise: Spend 10 minutes every other day writing about the same topic using different collocations. Write about education using "acquire knowledge." Then rewrite the same paragraph using "broaden horizons" instead. This forces you to see how word combinations can be swapped without losing meaning.
Bookmark this section. These appear regularly on IELTS tests:
IELTS frequently tests collocations in the context of jobs, careers, and workplace issues. If your test includes work-related questions, knowing these will help you score higher on Lexical Resource.