Idioms for IELTS (Band 8–9 Guide + Free PDF Download)
“Should I use idioms in IELTS?” — The answer is yes, but only when they are used accurately and naturally.
Many IELTS candidates memorize common idioms such as “piece of cake” or “once in a blue moon”, but then apply them incorrectly in the exam. This often leads to unnatural responses and lower scores.
In this guide, you will learn not only useful idioms for IELTS vocabulary, but also how to use them effectively at a Band 8–9 level.
When Should You Use Idioms in IELTS?
- ✔ Appropriate for IELTS Speaking (especially Part 2 & 3)
- ❌ Not recommended in Writing Task 2 due to informal tone
Band 8 Insight:
Examiners evaluate natural and precise language use, not memorized expressions.
High-Impact Idioms for IELTS (With Contextual Use)
| Idiom | Meaning | Band 8 Example |
|---|---|---|
| Burn the midnight oil | Study or work late | I had to burn the midnight oil to prepare for my final exams. |
| Hit the nail on the head | Describe exactly what is causing a situation | The professor hit the nail on the head when discussing student motivation. |
| Cost an arm and a leg | Be very expensive | Studying abroad can cost an arm and a leg. |
| Get out of hand | Become difficult to control | Traffic issues in large cities can quickly get out of hand. |
| A blessing in disguise | Something that seems negative but has a positive outcome | Failing the exam was a blessing in disguise as it motivated me to improve. |
| Under the weather | Feeling unwell | I felt slightly under the weather before the speaking test. |
| Once in a blue moon | Very rarely | I eat fast food only once in a blue moon. |
| Piece of cake | Very easy | I found the listening section relatively easy, almost like a piece of cake. |
| Go the extra mile | Make additional effort | Successful students are willing to go the extra mile. |
| In hot water | In trouble | He found himself in hot water after missing important deadlines. |
| Break the ice | Initiate conversation | Group activities help break the ice among students. |
| Call it a day | Stop working | After several hours of study, I decided to call it a day. |
| Back to square one | Return to the beginning | After failing the test, I had to go back to square one. |
| On the same page | In agreement | Teachers and students should be on the same page regarding expectations. |
| Take it with a grain of salt | Not fully believe something | Online advice should often be taken with a grain of salt. |
| Spill the beans | Reveal a secret | He accidentally spilled the beans about the surprise quiz. |
| Cut corners | Do something poorly to save time or money | Some learners cut corners when preparing for exams. |
| Face the music | Accept consequences | He had to face the music after neglecting his studies. |
| Keep in mind | Remember or consider | You should keep in mind the structure of the IELTS exam. |
| Pull yourself together | Calm down and regain control | I had to pull myself together before starting the speaking test. |
Common Mistakes (Band 6 Level)
- ❌ Overusing idioms in a single response
- ❌ Using idioms in formal writing tasks
- ❌ Memorizing idioms without understanding context
- ❌ Producing unnatural or forced sentences
Example (Inappropriate Use):
“In my opinion, education is a piece of cake and once in a blue moon students burn the midnight oil.”
Issue: The sentence is grammatically correct but contextually unnatural and lacks coherence.
Effective Use at Band 8–9 Level
- ✔ Use idioms selectively (1–2 per response)
- ✔ Ensure they fit the topic naturally
- ✔ Maintain fluency and coherence
Example (Appropriate Use):
“Before exams, I usually burn the midnight oil because I want to achieve the best possible results.”
Additional Band 8–9 Examples:
- “In my opinion, some students try to cut corners when studying, but this often leads to poor results in the long run.”
- “I think my teacher really hit the nail on the head when she said consistency is more important than intelligence.”
- “At first, I found public speaking challenging, but over time I managed to pull myself together and become more confident.”
- “Many people believe success happens overnight, but in reality, it requires going the extra mile on a daily basis.”
Idioms by IELTS Topics
Education
- Burn the midnight oil
- Pass with flying colors
- Back to square one
Work
- Climb the career ladder
- Go the extra mile
- Cut corners
Life & Problems
- Get out of hand
- In hot water
- Face the music
How to Learn Idioms Effectively
- ✔ Learn idioms within context, not in isolation
- ✔ Practice speaking regularly
- ✔ Record and evaluate your responses
- ✔ Apply idioms to common IELTS topics
👉 Practice with real questions:
IELTS Speaking Topics
Free IELTS Idioms PDF
We have prepared a free IELTS idioms PDF that includes:
- ✔ Additional idioms
- ✔ Practice exercises
- ✔ Topic-based examples
Download here:
Free Idioms for IELTS PDF
FAQ
Q1: Should I use idioms in IELTS Writing?
A: No, idioms are generally too informal for Writing Task 2.
Q2: How many idioms should I use in IELTS Speaking?
A: 1–2 natural idioms per answer is enough for a high score.
Q3: Do idioms increase IELTS score?
A: Only if used naturally and accurately.
