Idioms for IELTS Speaking: 50 Natural Expressions for Band 7+

Idioms are the fastest way to sound natural in IELTS Speaking — and the fastest way to sound ridiculous if you use them wrong. Examiners reward natural idiomatic language under the “Lexical Resource” criterion (25% of your Speaking score), but they penalize idioms that are forced, overused, or used incorrectly.

The key is using idioms the way native speakers actually use them: sparingly, in the right context, and without drawing attention to the fact that you are using one. Nobody in real life says “I would like to discuss the topic of hard work, and in that vein, let me say that I always burn the midnight oil.” They say: “I have a big deadline, so I have been burning the midnight oil lately.”

This guide gives you 50 idioms that work naturally in IELTS Speaking, organized by the topics that actually come up in the exam.

• Total idioms: 50
• Organized by: 10 IELTS Speaking topic areas
• Level: B2–C1 (upper-intermediate to advanced)
• Best for: IELTS Speaking Parts 1, 2, and 3; Band 7–9 preparation

How Examiners Score Idioms

Idioms fall under Lexical Resource, which is one of four scoring criteria in IELTS Speaking:

The jump from Band 6 to Band 7 often comes down to whether you can drop a few idioms naturally into your answers. You do not need 50 — learning 10–15 that you can use confidently is enough.

The Three Rules for Using Idioms in IELTS

Rule 1: Use idioms that fit the context. “It is raining cats and dogs” sounds rehearsed and cliché. “I had to learn the hard way” in a story about a personal experience sounds natural.

Rule 2: Do not overuse them. One or two idioms per answer is perfect. Five idioms in a 2-minute Part 2 response sounds like a memorized script.

Rule 3: Only use idioms you fully understand. Using an idiom with the wrong meaning is worse than not using one at all. If you are not 100% sure, use a simpler expression.

Opinions and Attitudes

These idioms help you express opinions in Part 3 discussions — the section where examiners probe your ability to discuss abstract ideas.

How to use them in Part 3:

Examiner: Do you think young people and older people have similar views on technology?

Not really. I think the two generations rarely see eye to eye on this topic. Older people tend to be more cautious about new technology, while younger people embrace it. The bottom line is that both perspectives have value — it is just that they are coming from different experiences.

Learning and Education

IELTS Speaking frequently covers topics about school, university, studying, and learning from mistakes.

Work and Career

Common in Part 1 (your job) and Part 3 (discussing work-life balance, career choices, success).

Daily Life and Routines

Perfect for Part 1 questions about your habits, hometown, free time, and daily schedule.

Experiences and Memories

Ideal for Part 2 cue cards that ask you to describe a past event, trip, or achievement.

Part 2 example (Describe a memorable trip):

I’d like to talk about my trip to Iceland last year. It was honestly the time of my life. The landscapes were unbelievable — volcanic fields, waterfalls, glaciers. And we were lucky enough to see the Northern Lights, which was really a once-in-a-lifetime experience. The trip was actually a blessing in disguise because I’d originally planned to go to Greece, but the flights were cancelled, and Iceland turned out to be far more memorable.

People and Relationships

For questions about friends, family, describing someone you admire, or discussing social dynamics.

Technology and Modern Life

Increasingly common in IELTS Speaking Part 3 discussions about digital life, AI, and social media.

Health and Well-being

Common in questions about lifestyle, sports, diet, and mental health.

Money, Success, and Ambition

For Part 3 discussions about wealth, goals, priorities, and what success means.

Environment, Travel, and Culture

For discussing travel experiences, cultural differences, and environmental issues.

Quick Reference: All 50 Idioms

Vocabulary to Practice

These 25 words appear frequently alongside idiomatic language in IELTS Speaking. Add them to your Linglify dictionary for spaced repetition practice.

How to Study Idioms for IELTS Speaking

1. Choose 10–15 idioms that match your life. Do not try to memorize all 50. Pick the ones that fit topics you talk about naturally. If you never discuss work, skip the career idioms. If you love travel, focus on #46–#50.

2. Practice with real Part 2 cue cards. Take a cue card like “Describe a time you learned something new” and record a 2-minute answer that includes 1–2 idioms. Listen back — do they sound natural or forced?

3. Build topic connections. For each idiom you learn, write down 2–3 IELTS topics where it could naturally appear. For example, “a double-edged sword” works for technology, social media, globalization, and tourism.

4. Study collocations, not just meanings. “See eye to eye” is always used with a negative: “We don’t see eye to eye” or “We rarely see eye to eye.” “Burn the midnight oil” is always about work or study, never about socializing.

5. Listen for idioms in native speech. Podcasts, interviews, and TED talks use idioms naturally. When you hear one, note the context — that teaches you more about usage than any definition can.

For a complete vocabulary system, read our guide on how to improve your vocabulary.

Common Mistakes with Idioms in IELTS Speaking

Mistake 1: Using too many idioms

Bad: Well, it’s a double-edged sword, and at the end of the day, the bottom line is that we have to see eye to eye, because in the long run it’s just the tip of the iceberg.

Good: I think social media is a double-edged sword. It connects people, but it also creates unrealistic expectations. In the long run, I think we’ll find a better balance.

One or two idioms per answer is the sweet spot. More than that sounds memorized.

Mistake 2: Using idioms you do not fully understand

If you use “bite the bullet” thinking it means “to eat quickly” (it actually means “to face a difficult situation bravely”), the examiner will notice. Only use idioms you have practiced and are confident about.

Mistake 3: Using outdated or cliché idioms

Avoid: “Every cloud has a silver lining,” “Rome wasn’t built in a day,” “Actions speak louder than words.” These are so common that they feel like proverbs from a textbook, not natural speech. The 50 idioms in this guide are all commonly used in modern spoken English.

Mistake 4: Announcing the idiom

Bad: I’d like to use an idiom here — it was really once in a lifetime.

Good: It was a once-in-a-lifetime experience.

Never signal that you are about to use an idiom. Just use it naturally.

What to Do Next

1. Build your IELTS Speaking vocabulary. Idioms are just one part of Lexical Resource. Our IELTS Speaking vocabulary by topic covers natural expressions, word upgrades, and collocations for 10 exam topics.

2. Master paraphrasing. Examiners also score your ability to rephrase ideas. Our Synonyms for IELTS guide gives you 200+ ready-to-use synonyms organized by the words candidates overuse most.

3. Target your band score. For band-specific vocabulary, see:

   • IELTS Band 6 vocabulary — the foundation
   • IELTS Band 7 vocabulary — the leap
   • For Band 8–9, advanced vocabulary beyond idioms is key

4. Read the complete IELTS guide. For a full vocabulary strategy across Reading, Writing, Speaking, and Listening, see our Complete IELTS Vocabulary Guide.

5. Strengthen your overall vocabulary. Idioms are most effective when your general vocabulary is already strong. Read our step-by-step vocabulary learning system for a daily study plan.

FAQ

How many idioms do I need for IELTS Band 7?

You need to use idiomatic language “naturally and appropriately” for Band 7. In practice, this means having 10–15 idioms you can use confidently in the right contexts. You do not need 50 — quality and naturalness matter far more than quantity. Focus on idioms that match the topics you are most likely to discuss.

Can I use idioms in IELTS Writing?

Use idioms very sparingly in Writing. In Task 2, one well-placed idiom (like “the bottom line” or “a double-edged sword”) can enhance your essay, but more than one or two feels informal. In Task 1, avoid idioms entirely — Task 1 requires formal, data-focused language. Idioms are primarily a Speaking strategy.

What is the difference between idioms and phrasal verbs?

Phrasal verbs are verb + particle combinations with a specific meaning: “give up” = quit. Idioms are fixed expressions whose meaning cannot be guessed from the individual words: “a piece of cake” = something easy. There is some overlap — “get the ball rolling” is both an idiom and contains a phrasal verb. For IELTS, both demonstrate Lexical Resource. See our 50 most common phrasal verbs for a complementary list.

Will the examiner know if I memorized idioms?

Yes — examiners are trained to detect memorized language. Signs include: using too many idioms, using them in the wrong context, pausing unnaturally before an idiom (as if recalling it), and using idioms that do not fit the conversation flow. The solution is to practice idioms in real speaking practice until they feel natural, not to memorize them as a list.

Are these idioms used in British and American English?

All 50 idioms in this guide are used in both British and American English. IELTS accepts both varieties, so there is no need to choose one set over the other. A few idioms have slight regional preferences — Americans tend to say “24/7” more than British speakers — but all 50 are universally understood.

Which IELTS Speaking part is best for using idioms?

Part 2 (the long turn) and Part 3 (the discussion) are the best opportunities. In Part 2, you have 2 minutes to tell a story — idioms fit naturally into narratives. In Part 3, idioms help you express opinions and generalizations. Part 1 answers are shorter, so limit yourself to one idiom at most. Never force an idiom where it does not fit.