Idioms Should be Learnt to Beat an IELTS Test

Learning a language is not only about mastering grammar rules or memorising vocabulary lists; it is also about understanding how native speakers naturally express their thoughts and emotions. One of the most fascinating yet challenging aspects of English is the use of idioms. Idioms are expressions whose meanings cannot be understood simply by looking at the individual words. They are deeply rooted in the culture, traditions, and history of a language, which is why they often confuse learners who study English as a second language.

For many IELTS candidates, idioms appear intimidating because they do not follow logical grammatical patterns, nor do they translate directly into other languages. As a result, learners often feel that the only way to learn idioms is by memorising them. While this is partly true, understanding the context and appropriate usage of idioms is far more important than rote learning.

Despite their difficulty, idioms play a crucial role in achieving a high band score in the IELTS Speaking test. When used naturally and correctly, idioms demonstrate a strong command of the language and contribute significantly to the Lexical Resource criterion. Examiners are not looking for candidates to use complicated or rare idioms; instead, they reward those who use common idiomatic expressions accurately and fluently without sounding forced.

It is important to note that idioms should be used sparingly and appropriately. Overusing them or inserting them unnaturally into every sentence can actually lower your score. However, using one or two well-placed idioms while describing experiences, emotions, or opinions can make your speech sound more natural and confident.

As you learn more about English culture through movies, books, podcasts, and conversations, you will gradually come across many idiomatic expressions. To help you get started, below are some common yet effective idioms that are frequently suitable for IELTS Speaking tasks, along with explanations and examples.

Once in a Blue Moon

This idiom refers to something that happens very rarely. The phrase originates from the unusual phenomenon where the moon appears bluish under specific atmospheric conditions.

Meaning: Very rarely or almost never
Example:
I enjoy eating fast food, but I only have it once in a blue moon because I prefer healthy meals.

This idiom is particularly useful when talking about habits, routines, or infrequent activities in Part 1 of the IELTS Speaking test.

Over the Moon

In many cultures, the moon symbolises beauty and positivity. Therefore, this idiom is used to describe a feeling of extreme happiness or excitement.

Meaning: Extremely happy or delighted
Example:
I was over the moon when I received my university acceptance letter.

You can confidently use this idiom when discussing achievements, celebrations, or memorable moments in Parts 2 and 3.

A Drop in the Ocean

This idiom is relatively easy to understand because it creates a clear image. It refers to something so small that it makes almost no difference compared to the whole.

Meaning: A very small amount compared to what is needed
Example:
My savings are just a drop in the ocean compared to the cost of studying abroad.

This expression works well when discussing social issues, finances, or global problems in Part 3.

Raining Cats and Dogs

This is one of the most well-known English idioms and is often used to describe extremely heavy rain.

Meaning: Raining very heavily
Example:
On the day of my final exam, it was raining cats and dogs, and I arrived at the test centre completely soaked.

This idiom is effective when narrating personal experiences or memorable events in the IELTS Speaking cue card.

Give Something a Second Thought

This idiom means to reconsider a decision or think more carefully about something.

Meaning: To reconsider or rethink
Example:
After discussing the risks with my parents, I decided to give studying abroad a second thought.

It is particularly useful when talking about life decisions, career choices, or personal challenges.

A Piece of Cake

This idiom is commonly used to describe something that is very easy to do.

Meaning: Extremely easy
Example:
Many people find public speaking stressful, but for me, it is a piece of cake.

This idiom is appropriate when comparing difficulty levels or discussing skills and abilities.

How to Use Idioms Effectively in IELTS?

While idioms can enhance your speaking score, they must be used wisely. Always ensure that:

• The idiom fits the context naturally
• You pronounce it clearly and confidently
• You understand its exact meaning
• You avoid using idioms in IELTS Writing tasks, as formal writing rarely requires them

Remember, quality matters more than quantity. Using one accurate idiom is far better than using several incorrectly.

To truly beat the IELTS test, especially the Speaking module, idioms should be treated as a valuable tool rather than a burden. They reflect cultural understanding, linguistic confidence, and fluency—qualities that IELTS examiners highly appreciate. By gradually learning and practising common idioms in context, you can significantly improve your spoken English and increase your chances of achieving a higher band score.

Consistent exposure, regular practice, and mindful usage are the keys to mastering idioms for IELTS success.