30 wordsWriting Task 1Updated 2026-05-26
Describing Trends and Graphs — 30 Words for IELTS Academic Writing Task 1
IELTS Academic Writing Task 1 asks you to describe a chart, table, graph, or process in 150 words and 20 minutes. The Lexical Resource band depends almost entirely on how precisely you describe movement, magnitude, and comparison — the vocabulary below is the toolkit. Each entry covers one of the four Task 1 verbal moves (direction of change, speed of change, magnitude, or comparison) and pairs the word with the exact data-context where examiners expect to see it. Get these 30 right and your Task 1 lexical band will sit at 7+ regardless of the topic.
IELTS prompts where this vocabulary fits
- Writing Task 1: The graph below shows changes in X between 2010 and 2026.
- Writing Task 1: The table below gives information about Y in five countries.
- Writing Task 1: The diagrams below show the process of Z. Summarise the information.
Describing Trends & Graphs vocabulary table
Each row gives the word, part of speech, plain-English definition, an IELTS-style example sentence, common collocations, and an optional band-7+ synonym you can swap in for variety.
| Word | POS | Definition | IELTS-style example | Collocations | Band-7+ synonym |
|---|---|---|---|---|---|
| climb | v. | To rise steadily; useful for moderate upward trends. | “Coffee consumption climbed steadily from 2015 to 2023 before stabilising.” | climb steadily, climb to a peak | rise |
| soar | v. | To rise quickly and dramatically; for sharp upward movements. | “Online grocery orders soared during the 2020 lockdowns and have remained well above pre-pandemic levels.” | soar to record highs, soar by 40 per cent | skyrocket |
| rocket | v. | To increase very rapidly; informal-academic register for sharp surges. | “House prices in coastal cities rocketed between 2019 and 2022 before correcting modestly.” | rocket upwards, rocket in value | spike |
| dip | v. / n. | To fall slightly before recovering; precise for short-lived declines. | “Sales dipped briefly in March before resuming the long-term upward trajectory.” | dip slightly, brief dip | drop |
| dwindle | v. | To gradually become less; for slow downward trends from a high base. | “The number of independent bookshops in the country has dwindled from 1,800 in 2000 to fewer than 900 today.” | dwindle gradually, dwindle to nothing | shrink |
| plummet | v. | To fall sharply and quickly; the standard Task 1 verb for steep declines. | “Newspaper print circulation plummeted by over sixty per cent in the decade after 2010.” | plummet sharply, plummet by | nosedive |
| plateau | v. / n. | To reach a stable level after change; precise for flat sections of a curve. | “The unemployment rate plateaued at 4.2 per cent between 2023 and 2025.” | plateau briefly, reach a plateau | level off |
| stabilise | v. | To become steady and stop changing; the band-7 alternative to 'stay the same'. | “After two years of volatility, energy prices have stabilised at roughly twice their 2019 level.” | stabilise around, stabilise at | settle |
| bottom out | phr.v. | To reach the lowest point before rising again; band-8 for turning points. | “Manufacturing output bottomed out in late 2020 before climbing back above its pre-recession level.” | bottom out at, bottom out in | trough |
| peak | v. / n. | To reach the highest point; standard Task 1 verb for maximum values. | “Tourist arrivals peaked at 2.1 million in July before falling away in the autumn months.” | peak at, reach a peak | maximum |
| overtake | v. | To become greater than something it was previously less than; for comparison crossovers. | “Renewable energy overtook coal as the primary source of electricity in 2022.” | overtake by, finally overtake | surpass |
| outstrip | v. | To grow faster or become bigger than; band-7 precision for one-sided comparisons. | “Demand for graduate housing now outstrips supply in every major university town.” | outstrip supply, outstrip projections | exceed |
| dramatic | adj. | Sudden, striking, and impressive; pairs with rise, fall, change, increase. | “The chart shows a dramatic increase in electric vehicle adoption between 2022 and 2026.” | dramatic increase, dramatic shift | striking |
| marginal | adj. | Very small in scope or effect; precise for changes that barely registered. | “The marginal decline in birth rates of the 1980s was overshadowed by the steeper fall after 2010.” | marginal change, marginal difference | negligible |
| substantial | adj. | Large in size or importance; bands 7+ alternative to 'big'. | “There was a substantial gap between male and female participation in STEM fields throughout the decade.” | substantial gap, substantial growth | considerable |
| modest | adj. | Limited in size or amount; standard adjective for small rises or falls. | “Public transport ridership made a modest recovery in 2023 but did not return to 2019 levels.” | modest increase, modest gain | slight |
| steady | adj. | Continuing at the same level or rate; pairs with rise, increase, growth. | “The chart shows a steady rise in life expectancy across all five countries.” | steady increase, steady growth | consistent |
| sharp | adj. | Sudden and large in extent; standard adjective for steep movements. | “There was a sharp drop in air travel between February and April 2020.” | sharp drop, sharp rise | steep |
| gradual | adj. | Happening slowly over a long period; standard alternative to 'slow'. | “There was a gradual shift towards electric vehicles in the second half of the decade.” | gradual decline, gradual transition | slow |
| rapid | adj. | Happening quickly; standard alternative to 'fast' for trends. | “Smartphone adoption underwent rapid expansion between 2010 and 2015.” | rapid growth, rapid expansion | swift |
| fluctuation | n. | An irregular rise and fall; the noun for unstable trends. | “Oil prices showed significant fluctuation throughout the 2020s.” | wide fluctuation, daily fluctuation | variation |
| disparity | n. | A noticeable difference, especially an unfair one; precise for comparison essays. | “The chart highlights the growing disparity in income between the top and bottom deciles.” | income disparity, growing disparity | inequality |
| proportion | n. | A part considered in relation to the whole; the standard Task 1 noun for percentages. | “Only a small proportion of respondents reported satisfaction with public services.” | large proportion, small proportion | share |
| margin | n. | A measurable amount by which something exceeds something else; useful for close comparisons. | “Renewables overtook coal by a narrow margin in 2022, then by a substantial margin thereafter.” | narrow margin, by a margin of | difference |
| respectively | adv. | In the order mentioned; essential for paired data presentation. | “Spain and Italy received four and three million tourists respectively in 2024.” | and X respectively, exports of X and Y respectively | in that order |
| account for | phr.v. | To make up a particular percentage of a total; standard Task 1 phrase for share descriptions. | “Manufacturing accounted for approximately twenty per cent of GDP in both years.” | account for the majority, account for X per cent | represent |
| whereas | conj. | In contrast with; the band-7 contrast conjunction for Task 1 paired data. | “Female participation rose steadily, whereas male participation remained flat over the period.” | whereas the figure for X was, by contrast whereas | while |
| compared with | prep. | When considered in relation to; standard Task 1 comparison phrase. | “Average rainfall in 2025 was substantially lower compared with the 2010-2020 mean.” | compared with the previous year, compared with the figure for | in comparison with |
| approximately | adv. | Almost exactly but not perfectly; band-7 hedging for imprecise data. | “Approximately one-third of respondents reported using public transport daily.” | approximately equal, approximately X per cent | roughly |
| overall | adv. / adj. | Considering everything; essential opening for the Task 1 overview paragraph. | “Overall, the chart shows a clear shift from print to digital media across all four countries.” | overall trend, overall, the data shows | in general |
Using these in IELTS Writing Task 2
Writing Task 2 rewards precise topic vocabulary in body paragraphs more than in the introduction. The introduction restates the prompt and signals your position; the body paragraphs are where examiners look for evidence of lexical range. Anchor each body paragraph on one main idea and weave in two or three words from this page that genuinely advance the argument.
Avoid the temptation to use every word on this page in a single essay. Two or three accurate uses of less common vocabulary is band-7 territory; five forced uses without natural collocation is a band-6 signal. Pair higher-register vocabulary with simple, grammatically clean sentences rather than the other way around.
Common traps to avoid
The most common describing trends & graphs trap at band 6.5 is collocation mismatch — using a word in a combination native speakers would not produce. The collocations column on the table above is the most important field for avoiding this; learn climb not as a single word but as part of the collocations listed beside it.
The second trap is register mismatch: using an informal word in a Writing Task 2 essay, or an overly formal word in a personal Speaking answer. The example sentences on this page are calibrated to the register IELTS expects for each section listed in the header.
Common questions
How many of these describing trends & graphs words do I actually need to know?
Pick a manageable set rather than trying to memorise all 30. Roughly twelve to fifteen words you can use accurately is worth more than 30 words you recognise but cannot produce. Start with the ones that fit the prompts you are most likely to get on test day, and rehearse each one in a full sentence rather than in isolation.
Will I lose marks if I use an unfamiliar word incorrectly?
Examiners specifically penalise inaccurate use of less common vocabulary on the IELTS Lexical Resource rubric. A misused band-8 word costs you more than a correctly used band-6 word would. The safer strategy is to use a slightly more familiar word with confidence than to reach for an advanced term you are not sure of. Practise the words on this page in real sentences and only deploy them when you are certain of both meaning and collocation.
Where in the IELTS exam does describing trends & graphs vocabulary appear?
This vocabulary is most useful in Writing Task 1. Function-style vocabulary like this is graded under the Coherence and Cohesion criterion in Writing and the Lexical Resource criterion in Speaking — both account for 25 per cent of your band in those sections.
How should I memorise this vocabulary effectively for IELTS?
Spaced repetition works for vocabulary the same way it works for any other memorisation task: review a small set daily for three or four days, then less often as recall becomes automatic. The crucial extra step for IELTS is to practise each word in spoken sentences, not just on flashcards. The Lexical Resource rubric rewards production, not recognition.
Will overusing connectors hurt my Writing band?
Yes — the IELTS Writing Task 2 band-6 descriptor explicitly warns against "overuse" of cohesive devices, and band 7 expects them to be used "appropriately though some over- or under-use". Pick a small number of connectors per essay (typically one per paragraph in introduction and conclusion, two or three in body paragraphs) and vary which functional category you draw from. Stuffing every sentence with "however" and "moreover" actually lowers your band.
Practise these words in a real IELTS test
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