10 Collocations to Instantly Improve Your IELTS Academic Task 1 Reports

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When preparing for the IELTS Academic Writing test, many candidates focus primarily on grammar and structure. However, one of the most important factors that can dramatically boost your band score for lexical resource is your use of collocations.
Collocations are natural combinations of words that often appear together — for example, “strong coffee,” “make a decision,” or “show an increase.”
In IELTS Writing Task 1, where you need to describe trends, figures, and comparisons, using collocations correctly can make your writing sound accurate, fluent, and more like that of a native speaker.

Below are ten essential collocations that you can immediately use in your Task 1 reports, along with explanations and examples that illustrate how they fit naturally into data descriptions.

1. Show a Significant Increase

This collocation is used to describe data that rises considerably over time. It’s more formal and precise than simply saying “went up.”

Example: “The number of online shoppers showed a significant increase between 2015 and 2020, rising from 15% to 48%.”

It’s often best used when the growth is clear and steady. You can vary it with alternatives such as “recorded a substantial increase” or “saw a marked rise.”

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2. Experience a Gradual Decline

When a value slowly decreases over a given period, this collocation provides an elegant way to describe it. It emphasizes the process rather than the result.

Example: “The birth rate in the country experienced a gradual decline over the two decades, falling by nearly 10% overall.”

The verb “experience” gives your writing a neutral, academic tone, avoiding repetition of “fall” or “decrease.”

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3. Remain Relatively Stable

Data often stays nearly constant during certain intervals. This phrase shows stability while sounding objective.

Example: “The proportion of car ownership remained relatively stable throughout the period, hovering around 70%.”

The adverb “relatively” adds nuance, implying small variations that don’t significantly affect the overall trend.

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4. Reach a Peak

This is one of the most common and useful collocations in IELTS Task 1, referring to the highest point of a trend.

Example: “Tourist arrivals reached a peak in August, with over 2 million visitors recorded.”

You can also vary it by writing “hit a peak” (more informal) or “attained its highest level.” Remember to use the appropriate tense for your chart or graph.

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5. Fluctuate Slightly

When numbers move up and down within a small range, this phrase is ideal. It shows variation without implying major change.

Example: “The average temperature fluctuated slightly during the first three months of the year.”

For more dramatic variation, you could say “fluctuated sharply.” Always make sure the adjective matches the scale of the data.

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6. Account for a Majority (or Minority)

When describing proportions or percentages, this collocation is both formal and precise.

Example: “In 2020, renewable sources accounted for a majority of total energy production at 55%.”

You can also reverse it: “Non-renewable energy accounted for a minority of total production.” This structure works well with pie charts and data sets showing distribution.

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7. Witness a Sharp Rise

This collocation emphasizes a sudden or noticeable upward movement. It adds dynamism to your writing and works especially well in past tense descriptions.

Example: “The city witnessed a sharp rise in housing prices immediately after the new metro line opened.”

The subject is often a location, institution, or population, while the verb “witnessed” gives an academic tone without sounding emotional.

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8. Fall Dramatically

This phrase highlights a significant drop and is perfect for describing steep downward changes.

Example: “Exports to Europe fell dramatically after 2019, dropping by nearly half within a single year.”

You can also use “declined sharply” or “plummeted.” Just make sure that the intensity of your description matches the scale of the fall shown in the data.

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9. Stand at

This short but powerful collocation gives you a way to report specific figures clearly.

Example: “By 2022, the unemployment rate stood at 4.8%, the lowest figure in a decade.”

It’s commonly used with statistics, prices, or percentages, and helps you sound concise and professional.

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10. Compare Favorably With

Use this collocation when making positive comparisons between data sets. It implies that one figure performs better than another.

Example: “The literacy rate in urban areas compares favorably with that of rural regions, at 98% versus 83% respectively.”

This is particularly useful for Task 1 questions involving comparisons between countries, regions, or categories.

In Conclusion

In IELTS Writing Task 1 academic, using the right collocations can instantly raise the sophistication of your language. Examiners look for candidates who can describe data using natural, varied, and precise vocabulary. Phrases like “show a significant increase” or “remain relatively stable” demonstrate that you can express complex ideas fluently without repetition or awkward phrasing.

To build mastery, don’t just memorize these collocations — practice writing full Task 1 academic responses where you use each one naturally. With consistent exposure, these phrases will become part of your active vocabulary, helping you write reports that are both clear and impressively academic.

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