IELTS Band 7 Vocabulary: 5 Mistakes Holding You Back

Most IELTS candidates know they need strong vocabulary for a band 7. What they don’t realise is that the examiner isn’t just counting sophisticated words. They’re looking at how accurately and naturally you use them. One misplaced word in a B2 sentence can quietly drag your Lexical Resource score down, even when the rest of your answer is solid.

The mistakes below are the ones that show up again and again, from writing tasks to the speaking test. They’re not about using simple words. They’re about using words the wrong way — and the fix is usually simpler than you’d expect.

The 5 Mistakes (and How to Fix Them)

Mistake 1: Using “Nowadays” as Your Only Discourse Marker

Wrong: Nowadays, people use smartphones a lot. Nowadays, social media is very popular.

Corrected: In recent years, smartphone use has increased significantly. Social media, in particular, has become embedded in daily life.

Why it matters: “Nowadays” isn’t wrong, but using it repeatedly signals a limited range. Band 7 means showing variety. Rotate in phrases like in recent years, increasingly, or at present to show the examiner you have options.

Mistake 2: Confusing “Rise” and “Raise”

Wrong: The government should rise taxes to fund public services.

Corrected: The government should raise taxes to fund public services.

Why it matters: Rise is intransitive — it doesn’t take an object. Raise is transitive — it needs one. Prices rise. You raise prices. Mixing these up in a Task 1 or Task 2 response is a reliable way to lose accuracy marks, because it’s a frequent and visible error.

Mistake 3: Overusing “Very” Instead of a Precise Adverb or Stronger Adjective

Wrong: Air pollution is very bad in many cities.

Corrected: Air pollution is severe in many cities. or Air pollution has reached alarming levels in many cities.

Why it matters: “Very bad” is grammatically fine. It’s just doing the bare minimum. A band 7 response replaces weak intensifier-adjective pairs with single precise adjectives: severe, acute, negligible, substantial. One word instead of two, and it reads as more controlled and academic.

This is exactly the kind of swap we work through in the daily coaching programme — swapping vague filler for precise vocabulary in real sentences. For more details, click here.

Mistake 4: Using the Wrong Collocation

Wrong: She made a big emphasis on the importance of exercise.

Corrected: She placed great emphasis on the importance of exercise.

Why it matters: Collocations are word partnerships, and in English they’re often fixed. You don’t make emphasis, you place it. You don’t do a mistake, you make one. The examiner notices when these partnerships are off — it breaks fluency even when the grammar is correct. Band 7 candidates have a feel for these combinations.

Mistake 5: Choosing a Rare Word Over a Precise One

Wrong: The proliferation of automobiles has engendered a plethora of deleterious consequences.

Corrected: The rapid growth in car ownership has led to a number of serious environmental and social problems.

Why it matters: This one surprises people. Candidates sometimes load their sentences with rare or obscure words, thinking it shows range. It usually shows the opposite — that they’ve memorised a list without understanding register or tone. Band 7 vocabulary is precise and natural, not a thesaurus explosion. Clarity and control beat performance every time.

The Pattern Behind All Five Mistakes

Look at these errors together and one thing stands out: they’re all about control, not complexity. The IELTS marking criteria for Lexical Resource at band 7 asks for sufficient range and less common vocabulary used with awareness of style and collocation. That last part is what most candidates miss.

You don’t need a bigger vocabulary. You need a more accurate one. The goal is words that are slightly more precise than the obvious choice, used correctly and naturally. That’s a different skill from memorising word lists, and it’s one that improves quickly once you know what to practise.

Quick-Reference Summary

• Vary your discourse markers — don’t lean on “nowadays” as a default opener.
• Remember: prices rise, you raise prices. One is intransitive, one isn’t.
• Replace “very + weak adjective” with a single precise adjective wherever possible.
• Learn collocations as pairs, not individual words in isolation.
• Aim for precision and naturalness, not rarity. Clear and controlled beats obscure and showy.

Vocabulary to Know

• discourse marker /ˈdɪskɔːs ˌmɑːkə/ – Level: B2 – a word or phrase used to organise speech or writing and signal the relationship between ideas – Example: Phrases like “in contrast” and “as a result” are common discourse markers in academic writing.
• collocation /ˌkɒləˈkeɪʃən/ – Level: B2 – a natural and frequent combination of words that native speakers use together – Example: “Make a decision” is a standard collocation; “do a decision” is not.
• lexical resource /ˈleksɪkəl rɪˈzɔːs/ – Level: C1 – one of the four IELTS marking criteria, referring to the range and accuracy of vocabulary used – Example: The examiner noted her strong lexical resource, particularly her use of precise collocations.
• intransitive verb /ɪnˈtrænsɪtɪv vɜːb/ – Level: B1 – a verb that does not require a direct object to complete its meaning – Example: “Prices rose sharply” uses an intransitive verb because nothing receives the action.
• register /ˈredʒɪstə/ – Level: B2 – the level of formality or style of language appropriate to a particular context – Example: Using slang in an IELTS essay shows poor awareness of academic register.
• acute /əˈkjuːt/ – Level: C1 – (of a problem or situation) present to a severe or intense degree – Example: Housing shortages are particularly acute in major urban centres.
• substantial /səbˈstænʃəl/ – Level: B2 – of considerable importance, size, or worth – Example: There has been a substantial increase in renewable energy investment over the past decade.
• place emphasis on /pleɪs ˈemfəsɪs ɒn/ – Level: B2 – to treat something as particularly important or to stress it – Example: The report placed considerable emphasis on the need for systemic reform.
• embedded /ɪmˈbedɪd/ – Level: C1 – firmly established or deeply rooted within a system, culture, or way of life – Example: Digital communication has become embedded in modern professional life.
• negligible /ˈneɡlɪdʒɪbəl/ – Level: C1 – so small or unimportant as to be not worth considering – Example: The difference in cost between the two options was negligible.

Frequently Asked Questions

Do I need to memorise word lists to get IELTS band 7 vocabulary?

Not exactly. Word lists can help you notice new vocabulary, but memorising them in isolation rarely leads to accurate use. What actually helps is learning words in context, with their collocations and typical sentence patterns. Seeing how a word behaves in a real sentence is more useful than knowing its definition alone.

How many “advanced” words do I need to use per paragraph?

There’s no magic number, and trying to hit a quota often leads to Mistake 5 above. A better approach: aim for one or two precise, well-chosen words per paragraph that are a step up from the obvious choice. If the rest of the paragraph is accurate and clear, that’s enough to demonstrate range without overcrowding your writing.

Does this advice apply to IELTS Speaking as well as Writing?

Yes, and the stakes are slightly different in speaking. In a written task you can edit, but in speaking your word choices land in real time. The collocation errors and weak intensifiers (Mistakes 4 and 3) are especially noticeable when spoken aloud. Practising these patterns in conversation makes them automatic, which is exactly when they help most under exam pressure.

One Last Thing

The five mistakes above aren’t exotic edge cases. They’re patterns that come up in almost every set of IELTS practice essays and speaking recordings we work with. Fixing them won’t just nudge your Lexical Resource score, it’ll make your English feel more controlled and natural across the board. That’s a good deal for five adjustments.

If you want to work on vocabulary like this regularly, with feedback on your actual sentences rather than generic advice, our daily coaching programme is built for exactly that. For more details, click here.