IELTS Top 100 Vocabulary Words
The 100 most important words from the Academic Word List for IELTS. Each entry includes the part of speech, a clear definition, an example sentence, and the word family.
100 words · Part of speech · Definition · Example · Word family
About the Academic Word List (AWL): The AWL was developed by Averil Coxhead and contains 570 word families not in the most common 2,000 English words. These words cover approximately 10% of academic text. The 100 words here are drawn from the most frequent AWL sublist entries and appear regularly in IELTS Reading, Writing, and Listening.
| # | Word | Part of Speech | Definition | Example Sentence | Word Family |
|---|---|---|---|---|---|
| 1 | accommodate | verb | To provide space for; to adapt or adjust; to take into consideration. | The new policy was designed to accommodate the needs of both full-time and part-time workers. | accommodate / accommodation / accommodating / accommodative |
| 2 | achieve | verb | To successfully reach a desired goal or result by effort or skill. | Countries that invest in education consistently achieve higher rates of economic development. | achieve / achievement / achievable / overachieve |
| 3 | acquire | verb | To come to possess or obtain; to gain through effort. | Children acquire language through exposure and interaction rather than formal instruction. | acquire / acquisition / acquired / acquisitive |
| 4 | adequate | adjective | Sufficient for a specific requirement; acceptable but not exceptional. | Adequate funding is essential for maintaining the quality of public health infrastructure. | adequate / adequacy / adequately / inadequate |
| 5 | analyze | verb | To examine methodically and in detail; to interpret the meaning of. | The IELTS Academic Reading section requires students to analyze complex arguments and data. | analyze / analysis / analytical / analytically |
| 6 | approach | noun/verb | A way of dealing with something; to come near or begin dealing with. | The research team adopted a mixed-methods approach, combining surveys with in-depth interviews. | approach / approachable / unapproachable |
| 7 | appropriate | adjective | Suitable or proper in the circumstances. | It is important to use vocabulary that is appropriate for academic writing in the IELTS exam. | appropriate / appropriately / appropriateness / inappropriately |
| 8 | area | noun | A region or part of a topic; a surface measurement. | The study focuses on the area of environmental policy and its economic consequences. | area / areas / areal |
| 9 | aspect | noun | A particular part or feature of something; a way in which it may be considered. | One important aspect of language learning is the ability to read for gist rather than word-for-word meaning. | aspect / aspects / aspectual |
| 10 | assist | verb | To help someone or provide support. | Bilingual dictionaries can assist learners in understanding unfamiliar academic vocabulary. | assist / assistance / assistant / assistive |
| 11 | assume | verb | To suppose to be the case without proof. | The model assumes that all other variables remain constant, which is rarely true in practice. | assume / assumption / assumed / presumed |
| 12 | available | adjective | Able to be used or obtained; not otherwise occupied. | Data from the survey are available on the government's official research portal. | available / availability / unavailable |
| 13 | benefit | noun/verb | An advantage or profit; to gain an advantage from something. | Communities located near renewable energy projects often benefit from reduced electricity costs. | benefit / beneficial / beneficiary / beneficially |
| 14 | category | noun | A class or division of things regarded as having shared characteristics. | The report organizes pollutants into three categories based on their persistence in the environment. | category / categorize / categorical / categorically |
| 15 | chapter | noun | A main division of a book or other written work. | The final chapter of the report draws together the evidence and proposes policy recommendations. | chapter / chapters |
| 16 | commission | noun/verb | An instruction or command; a group appointed to perform a function; to order the production of. | The government commissioned an independent review of the health care system. | commission / commissioner / commissioned / decommission |
| 17 | community | noun | A group of people living in the same place or having a characteristic in common. | Local communities were consulted before the urban regeneration project was approved. | community / communal / communally / communities |
| 18 | complex | adjective/noun | Consisting of many different interrelated parts; difficult to understand. | The relationship between economic growth and environmental degradation is highly complex. | complex / complexity / complexly / simplify |
| 19 | conduct | noun/verb | To carry out or manage; the manner in which a person behaves. | The study was conducted over a five-year period using longitudinal survey methods. | conduct / conductor / misconduct / conducted |
| 20 | consequence | noun | A result or effect; a conclusion reached by reasoning. | The long-term consequences of deforestation extend far beyond the immediate region affected. | consequence / consequential / consequently / inconsequential |
| 21 | construct | verb/noun | To build or create; something constructed; an abstract concept. | Social scientists often use the term 'identity' as a theoretical construct rather than a fixed category. | construct / construction / constructive / reconstruct |
| 22 | consume | verb | To use up a resource; to eat or drink; to destroy completely. | Developed countries consume a disproportionately large share of the world's natural resources. | consume / consumption / consumer / consumptive |
| 23 | create | verb | To bring something into existence; to produce through creative effort. | Technological innovation creates new economic opportunities but also disrupts existing industries. | create / creation / creative / creativity |
| 24 | data | noun | Facts and statistics collected for reference or analysis. | IELTS Academic Task 1 requires candidates to interpret and describe data from charts or diagrams. | data / database / dataset / data-driven |
| 25 | decade | noun | A period of ten years. | Over the past three decades, global average temperatures have risen by approximately 0.6°C. | decade / decadal / decades |
| 26 | define | verb | To state or describe exactly the nature or meaning of something. | Before analyzing the data, the researchers carefully defined what they meant by 'poverty.' | define / definition / definitive / redefine |
| 27 | distribute | verb | To give out or spread over an area; to supply to individuals. | The resources were distributed unevenly across the regions studied, reflecting existing disparities. | distribute / distribution / distributive / redistribute |
| 28 | economic | adjective | Relating to economics, trade, and industry; justified in financial terms. | Economic inequality within cities has widened significantly over the past two decades. | economic / economically / economy / economist |
| 29 | element | noun | A basic or essential part of something; one of the fundamental substances in chemistry. | Critical thinking is a core element of academic literacy across all disciplines. | element / elemental / elementary / elements |
| 30 | emerge | verb | To become apparent, known, or important; to come out from a concealed position. | A clear consensus began to emerge from the conference on the need for stronger regulation. | emerge / emergence / emergent / re-emerge |
| 31 | equation | noun | A mathematical statement asserting equality; the process of equating one thing with another. | The equation used to model population growth assumes exponential increase in the absence of constraints. | equation / equate / equational |
| 32 | establish | verb | To set up permanently; to achieve acceptance of; to prove. | The study firmly establishes a causal relationship between air pollution and childhood asthma. | establish / establishment / established / re-establish |
| 33 | estimate | verb/noun | To form an approximate judgment of a value or quantity; such a judgment. | Scientists estimate that the permafrost contains approximately 1.5 trillion tonnes of organic carbon. | estimate / estimation / estimated / overestimate |
| 34 | evidence | noun | The available facts indicating whether something is true. | There is compelling evidence that urbanization contributes to the urban heat island effect. | evidence / evident / evidently / evidential |
| 35 | factor | noun | A circumstance contributing to a result; a number multiplied with another. | Socioeconomic factors strongly influence both educational attainment and health outcomes. | factor / factorial / factorize / contributing |
| 36 | function | noun/verb | The purpose or role of something; to operate or work as intended. | The kidneys function as the body's primary filtration system, removing waste from the blood. | function / functional / dysfunction / functionality |
| 37 | global | adjective | Relating to the whole world; comprehensive. | Global migration patterns have shifted significantly in response to climate change and conflict. | global / globally / globalize / globalization |
| 38 | identify | verb | To recognize or establish who or what something is. | Researchers identified three distinct risk factors associated with the onset of the condition. | identify / identification / identifiable / identity |
| 39 | indicate | verb | To point out or show; to be a sign or symptom of. | The graph indicates a steady decline in carbon intensity since 2010. | indicate / indication / indicator / indicative |
| 40 | individual | adjective/noun | Single; separate; a single human being as distinct from a group. | Individual variation in learning styles means that one-size-fits-all approaches are ineffective. | individual / individually / individualism / individualize |
| 41 | interpret | verb | To explain the meaning of; to understand in a particular way. | In Task 1, candidates must interpret visual data and present it objectively in writing. | interpret / interpretation / interpretive / misinterpret |
| 42 | involve | verb | To include as a necessary element; to cause someone to participate. | Effective policymaking involves extensive consultation with affected communities. | involve / involvement / involved / involving |
| 43 | issue | noun | An important topic for debate; a problem or concern to be addressed. | IELTS Writing Task 2 typically asks candidates to discuss an issue from multiple perspectives. | issue / issues / issue-based |
| 44 | legal | adjective | Of or relating to the law; permitted by law. | Legal frameworks for regulating digital data vary widely across jurisdictions. | legal / legally / legality / illegal |
| 45 | link | noun/verb | A connection between two things; to make a connection. | Research has consistently linked exposure to air pollution with increased mortality rates. | link / linkage / linked / linking |
| 46 | major | adjective/noun | Important, serious, or significant; greater in number or extent. | Water scarcity is a major challenge facing many countries in sub-Saharan Africa. | major / majority / majorly / majorette |
| 47 | method | noun | A particular procedure for accomplishing something; a systematic approach. | The mixed-methods approach combined qualitative interviews with quantitative survey data. | method / methodical / methodology / methodically |
| 48 | occur | verb | To happen; to exist or be found at a particular place or time. | El Niño events occur irregularly, typically every two to seven years. | occur / occurrence / recurring / recur |
| 49 | percent | noun | A rate or proportion per hundred. | Approximately 71 percent of the Earth's surface is covered by water. | percent / percentage / percentile |
| 50 | period | noun | A length of time; a particular phase in a process or history. | The post-war period saw dramatic growth in both urban populations and industrial output. | period / periodic / periodically / periodical |
| 51 | policy | noun | A course of action adopted by an organization or government. | Fiscal policy can be used to stabilize the economy during periods of recession. | policy / policymaker / policies / policy-driven |
| 52 | potential | adjective/noun | Having or showing the capacity to become something; latent qualities. | Renewable energy has the potential to meet the majority of global electricity demand by 2050. | potential / potentially / potentiality |
| 53 | previous | adjective | Existing or occurring before in time or order. | Previous studies in this area were limited by small sample sizes and short follow-up periods. | previous / previously / precedent |
| 54 | primary | adjective | Of chief importance; earliest in time; first in order of priority. | The primary aim of the study was to assess the long-term economic impact of the policy change. | primary / primarily / prime / primitive |
| 55 | procedure | noun | An established or official way of doing something; a series of actions. | The experimental procedure was documented in sufficient detail to allow replication. | procedure / procedural / procedurally |
| 56 | process | noun/verb | A series of actions to achieve a result; to perform operations on. | The peer review process ensures that published research meets minimum quality standards. | process / processing / processor / re-process |
| 57 | range | noun/verb | The area of variation between limits; to vary within certain limits. | The sample ranged in age from 18 to 65, providing a representative cross-section of the population. | range / ranging / ranged / wide-ranging |
| 58 | regulation | noun | A rule or directive made by an authority; the action of controlling or supervising. | Stricter environmental regulations have significantly reduced industrial emissions since 1990. | regulation / regulate / regulator / regulatory |
| 59 | require | verb | To need something; to make something necessary by law or rule. | IELTS Academic Writing Task 2 requires candidates to write at least 250 words. | require / requirement / required / requisite |
| 60 | research | noun/verb | The systematic investigation of facts; to study a subject in detail. | Primary research conducted over three years informed the policy recommendations in the report. | research / researcher / research-based |
| 61 | resource | noun | A stock or supply that can be drawn on; available assets. | Natural resources such as clean water and arable land are under increasing pressure globally. | resource / resources / resourceful / resourcefulness |
| 62 | role | noun | The function assumed or part played in a particular situation. | International organizations play a critical role in coordinating responses to global health crises. | role / role-play / roles |
| 63 | section | noun | Any of the more or less distinct parts into which something is divided. | Each section of the IELTS exam tests a different language skill within a fixed time limit. | section / sectional / subsection / cross-section |
| 64 | significant | adjective | Sufficiently great or important to be worthy of attention. | There has been a significant increase in the proportion of women in leadership positions. | significant / significance / significantly / insignificant |
| 65 | similar | adjective | Resembling without being identical; having a likeness. | Similar patterns of development were observed in both the urban and rural case studies. | similar / similarity / similarly / dissimilar |
| 66 | source | noun | The place, person, or thing from which something originates. | Reliable academic sources should always be cited in IELTS Writing Task 2 arguments. | source / sourcing / source-based |
| 67 | specific | adjective | Clearly defined or identified; precise and exact. | The question asked candidates to refer to specific examples to support their argument. | specific / specifically / specificity / non-specific |
| 68 | structure | noun/verb | The arrangement of and relations between the parts of something complex. | A clear structure is essential for a high-scoring IELTS Task 2 essay. | structure / structural / structurally / restructure |
| 69 | survey | noun/verb | An investigation of opinions or experiences by questioning people; to examine. | The survey revealed that over 60% of respondents supported stricter emissions targets. | survey / surveyor / surveyed / surveying |
| 70 | theory | noun | A supposition intended to explain something; a well-substantiated explanation. | Attachment theory has had a profound influence on developmental psychology and childcare policy. | theory / theoretical / theoretically / theorize |
| 71 | various | adjective | More than one; of different kinds. | The report draws on data from various sectors of the economy to build a comprehensive picture. | various / variety / varied / vary |
| 72 | abstract | adjective | Existing only in thought; not physical or concrete. | The ability to think in abstract terms is considered a key marker of academic readiness. | abstract / abstraction / abstractly |
| 73 | clarify | verb | To make less confused or easier to understand. | Candidates are advised to clarify their position clearly in the introduction to a Task 2 essay. | clarify / clarification / clarity / unclear |
| 74 | coherent | adjective | Logical and consistent; forming a unified whole. | A coherent argument develops logically from a clear thesis statement. | coherent / coherence / coherently / incoherent |
| 75 | consistent | adjective | Acting the same way over time; compatible with existing facts. | The results were consistent across all three independent replications of the experiment. | consistent / consistency / consistently / inconsistent |
| 76 | context | noun | The circumstances that form the setting for an event or statement. | In the context of rapid urbanization, sustainable planning has become an urgent priority. | context / contextual / contextualize / contextually |
| 77 | contrast | noun/verb | A striking difference between two things; to compare differences. | The passage contrasts traditional farming methods with modern industrial agriculture. | contrast / contrasting / contrastive / contrastingly |
| 78 | demonstrate | verb | To show clearly; to prove or make evident. | The graph demonstrates a clear upward trend in renewable energy capacity over the past decade. | demonstrate / demonstration / demonstrative / demonstrably |
| 79 | derive | verb | To obtain from a specified source; to reach a conclusion by reasoning. | The formula for calculating GDP can be derived from basic principles of national income accounting. | derive / derivation / derivative / derived |
| 80 | diverse | adjective | Showing a great deal of variety; very different from one another. | A diverse workforce has been linked to greater organizational creativity and problem-solving capacity. | diverse / diversity / diversify / diversification |
| 81 | dominate | verb | To have power and influence over; to be the most important or influential. | Fossil fuels continue to dominate the energy mix in most industrialized nations. | dominate / dominant / dominance / domination |
| 82 | emerge | verb | To become apparent; to come out from a concealed or enclosed position. | New patterns of global migration began to emerge in the early twenty-first century. | emerge / emergence / emergent / re-emerge |
| 83 | environment | noun | The natural world; the surroundings in which an organism lives. | Climate change poses an existential threat to the natural environment of many island nations. | environment / environmental / environmentally / environmentalist |
| 84 | evaluate | verb | To assess or appraise; to form an opinion of something's value. | IELTS Task 2 often requires candidates to evaluate the advantages and disadvantages of a practice. | evaluate / evaluation / evaluative / re-evaluate |
| 85 | generate | verb | To produce or create something; to give rise to. | Offshore wind farms can generate electricity without producing greenhouse gas emissions. | generate / generation / generator / generative |
| 86 | impact | noun/verb | A significant effect; to have a strong effect on something. | The impact of deforestation on local rainfall patterns is becoming increasingly evident. | impact / impactful / high-impact |
| 87 | implement | verb | To put a plan into action; to carry out or execute. | The policy was implemented in phases to allow time for stakeholders to adapt. | implement / implementation / implementable |
| 88 | individual | adjective/noun | Single and separate; a single person or item. | Individual results varied widely, underscoring the need for personalized interventions. | individual / individually / individualism / individualize |
| 89 | integrate | verb | To combine into a whole; to incorporate into a larger structure. | Schools are increasingly being asked to integrate digital literacy into existing curricula. | integrate / integration / integral / disintegrate |
| 90 | maintain | verb | To keep in existence; to continue; to assert as true. | Governments must maintain investment in infrastructure even during periods of fiscal austerity. | maintain / maintenance / maintainable |
| 91 | network | noun | A system of interconnected things, people, or organizations. | A strong professional network can significantly improve career prospects in competitive fields. | network / networking / interconnect |
| 92 | objective | adjective | Not influenced by personal feelings; based on observable facts. | IELTS Academic Writing requires an objective tone, avoiding personal opinions unless directly asked. | objective / objectivity / objectively / subjective |
| 93 | proportion | noun | A part or share in relation to the whole; the relationship between parts. | The chart shows the proportion of household income spent on food across five income groups. | proportion / proportional / proportionate / disproportionate |
| 94 | relevant | adjective | Closely connected or appropriate to the matter at hand. | Only relevant evidence should be included in a Task 2 essay; irrelevant examples reduce coherence. | relevant / relevance / relevantly / irrelevant |
| 95 | respond | verb | To say or do something as a reaction to an event. | Governments must respond quickly when early warning systems detect emerging public health threats. | respond / response / responsive / unresponsive |
| 96 | restrict | verb | To put a limit on; to control. | Zoning laws restrict the types of development that are permitted in protected areas. | restrict / restriction / restrictive / unrestricted |
| 97 | significant | adjective | Sufficiently great to be worthy of attention; noteworthy. | A significant proportion of households in the study reported difficulty paying energy bills. | significant / significance / significantly / insignificant |
| 98 | sustain | verb | To maintain at a certain rate or level; to withstand; to support. | Few ecosystems can sustain the level of human exploitation they have experienced in recent decades. | sustain / sustainable / sustainability / unsustainable |
| 99 | trend | noun | A general direction in which something is developing or changing. | The graph shows a clear downward trend in the cost of solar energy since 2010. | trend / trendy / trending / downtrend |
| 100 | undermine | verb | To damage or weaken gradually; to erode the foundations of. | Corruption can undermine the effectiveness of even well-designed public institutions. | undermine / undermined / undermining |
| 101 | utilize | verb | To make practical and effective use of something. | Modern farms utilize precision agriculture technology to optimize water and fertilizer use. | utilize / utilization / utility / utilitarian |
IELTS vocabulary study strategies
Use AWL vocabulary actively
Passive knowledge of words is not enough for IELTS Writing. Practice using AWL words in your own sentences until they feel natural.
Learn word families
IELTS rewards lexical resource. Knowing that 'analyze' becomes 'analysis,' 'analytical,' and 'analytically' lets you use one word in four contexts.
Paraphrase rather than repeat
IELTS Writing is penalized for repeating the same word. Use word families and synonyms to vary your language throughout the response.
Read academic texts daily
Reading from The Economist, New Scientist, or academic abstracts exposes you to AWL vocabulary in natural context, the most effective preparation.
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