A strong vocabulary can help you in all four parts of the IELTS test, but you don’t need to memorise thousands of random words to improve your score.
The real challenge is finding the right resources and using them effectively.
There is no single “IELTS vocabulary list”, but there are word lists, dictionaries, collocation tools and apps that can help you learn the vocabulary that appears most often in academic English and common IELTS topics.
On this page, I’ve collected the vocabulary tools and resources that I recommend most often to my students. Whether you want to learn new words, check collocations, build topic vocabulary or review language you’ve already met in reading and listening texts, you’ll find something here to help.
Start with the word lists, then explore the collocation tools, dictionaries and apps that will help you turn passive vocabulary into vocabulary you can actually use in the test.
Looking for a complete study plan? I’ve also included details of my IELTS Vocabulary Booster, which brings together the vocabulary, topics and activities I recommend for IELTS preparation.
See also: 28-Ways to improve your IELTS Vocabulary
1. IELTS Vocabulary Word Lists
One of the easiest ways to focus your vocabulary study is to use established academic word lists. These lists contain words that appear frequently in academic English and are useful for IELTS Reading, Writing, Listening and Speaking.
Don’t try to learn every word at once. Start by identifying the words you already know and then focus on those that are less familiar.
For each new word, make sure you understand:
- its meaning
- how it is used in a sentence
- its pronunciation
Keep a vocabulary notebook and review words regularly using flashcards or spaced-repetition tools such as Quizlet.
For a detailed guide to the most useful vocabulary lists, see The Best Vocabulary Lists for IELTS, where I explain how to use:
- The Academic Word List (AWL)
- The Academic Vocabulary List (AVL)
- The General Service List (GSL)
- The Academic Collocation List (ACL)
There are several official word lists that will help you decide which vocabulary is important to learn for IELTS.
👉 Learn more: The Best Vocabulary lists for IELTS (free)
2. IELTS Collocation Lists
Collocations are words that commonly go together, such as ‘take responsibility’ or ‘conduct research’. Learning collocations can help you sound more natural and improve your Lexical Resource score in both Writing and Speaking.
The best way to learn collocations is through extensive reading and listening, but collocation tools can help you check whether a word combination is natural and commonly used by native speakers.
If you’re new to collocations, these reference lists are a good place to start:
- Academic Collocations for IELTS
- Pearson Academic Collocation List – 42 pages of academic collocations in a PDF
- A – Z of collocations (English Club website)
Once you understand the basics, I recommend using online collocation tools whenever you learn a new word. They can help you discover common word partnerships, example sentences and synonyms.
My favourite is Ludwig.guru, which allows you to check whether a phrase sounds natural in English and compare it with authentic examples.
Other useful collocation tools include:
- Corpusmate – search real-world examples of language use
- Just the Word  – an easy way to explore common word partnerships
- Netspeak – useful for checking phrases and finding alternative wording
- Ozdic – one of the most user-friendly online collocation dictionaries
Teacher Tip: Don’t try to memorise hundreds of collocations. Instead, whenever you learn a new IELTS-related word, look up its most common collocations and record a few example sentences in your vocabulary notebook.
3. Best IELTS Dictionaries
A good learner dictionary does much more than give definitions. It can help you check pronunciation, word forms, common collocations, example sentences and whether a word is suitable for formal or informal contexts.
Whenever you learn a new word, take a few minutes to check:
- its meaning
- its pronunciation
- whether it is formal or informal
- common collocations
- related word forms (noun, verb, adjective and adverb)
My favourite dictionaries for IELTS students are:
- Cambridge Dictionary
- Longman Dictionary of Contemporary English
- Oxford Advanced Learner’s Dictionary
- Macmillan Dictionary
Tip: Avoid translating words directly from your first language whenever possible. Learner dictionaries provide the extra information you need to use a word accurately in the IELTS test.
4. Best IELTS Vocabulary Apps
The biggest challenge in learning vocabulary is not finding new words – it’s remembering them. Vocabulary apps can help you review words regularly and move them from your passive vocabulary into your active vocabulary.
I recommend using an app that allows you to create your own vocabulary sets from your IELTS reading, listening and writing practice.
Useful options include:
- Quizlet – create flashcards, track progress and study on your phone. I’ve created several free IELTS vocabulary sets to help you get started.
- Anki – uses spaced repetition to help you review words just before you are likely to forget them.
- Knowt – a free alternative to Quizlet with flashcards and study games.
- Pauline Cullen’s IELTS Vocabulary Apps – designed specifically for IELTS learners.
Tip: Don’t download multiple apps and try to learn hundreds of words at once. Choose one system and review a small number of words every day.
5. A complete IELTS Vocabulary study system
The resources above are the tools that I regularly recommend to IELTS students. However, many students find it difficult to decide which words to learn and how to organise their studies.
That’s exactly why I created the IELTS Vocabulary Booster. It brings together carefully selected IELTS vocabulary, topic-based word lists, review activities and study plans in one place, so you can spend less time searching for resources and more time learning the language you actually need for the test.
- 300+ essential words in example sentences
- clear definitions and pronunciation tips
- 28 IELTS topics
- Quizlet review activities
- Vocabulary study plan
Inside the Resource Library
Get access to detailed vocabulary guides covering common IELTS topics such as:
- Education
- Crime and punishment
- Health and fitness
- Technology and inventions
- Cities and urban life
- Money and the economy
- Food and nutrition
- The environment
Plus 20+ additional topic guides, vocabulary lessons and language reference materials.
About Fiona
Fiona is an IELTS trainer, ex-examiner and course creator based in the UK. She has a Master’s in Teaching English as a Foreign Language (Distinction) and over 35 years of teaching experience. She has helped thousands of IELTS candidates develop the language and exam skills needed to achieve their target scores.
