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TOEFL Reading Vocabulary: 200 Essential Academic Words

Writing30 Team
12 min read
TOEFL Reading vocabulary list organized by academic topic

How to Use This List

Recommended Study Method

  1. Read the word and definition. Say the word aloud to build pronunciation familiarity.
  2. Read the example sentence. Understand how the word is used in context.
  3. Write your own sentence. Using the word in a new context deepens retention.
  4. Review daily. Study 10-20 new words per day and review previous words.
  5. Practice in context. When you encounter these words in TOEFL passages, note how they are used.

Science & Technology (50 Words)

#WordDefinitionExample Sentence
1hypothesisA proposed explanation for a phenomenonThe researchers tested their hypothesis that increased CO2 levels accelerate plant growth.
2empiricalBased on observation or experiment rather than theoryEmpirical evidence suggests that the new drug reduces symptoms by 40%.
3catalystA substance or factor that speeds up a processThe enzyme acts as a catalyst in the chemical reaction.
4synthesisThe combination of elements to form a wholePhotosynthesis is the synthesis of glucose from sunlight, water, and carbon dioxide.
5phenomenonAn observable event or occurrenceScientists have studied the phenomenon of bioluminescence in deep-sea creatures.
6variableA factor that can change in an experimentThe researchers controlled every variable except temperature.
7correlationA mutual relationship between two thingsThere is a strong correlation between exercise frequency and cardiovascular health.
8replicateTo reproduce or duplicate resultsOther laboratories were unable to replicate the original findings.
9mechanismThe process by which something worksThe mechanism by which the virus enters cells is now well understood.
10biodiversityThe variety of life in a particular habitatTropical rainforests contain the greatest biodiversity on Earth.
11ecosystemA community of interacting organisms and their environmentThe wetland ecosystem supports hundreds of bird species.
12sustainableAble to be maintained at a certain rate or levelSustainable farming practices protect soil quality for future generations.
13innovationA new method, idea, or productTechnological innovation has transformed communication in the 21st century.
14adaptiveAble to adjust to new conditionsSpecies with adaptive traits are more likely to survive environmental changes.
15genomeThe complete set of genetic material in an organismMapping the human genome was a major scientific achievement.
16habitatThe natural home of an organismDeforestation destroys the natural habitat of many species.
17mutationA change in genetic structureA random mutation in the gene led to antibiotic resistance.
18paradigmA model or pattern of thinkingThe discovery shifted the scientific paradigm about disease transmission.
19spectrumA range or scaleThe electromagnetic spectrum includes visible light, radio waves, and X-rays.
20simulateTo imitate or model a processComputer models simulate climate patterns over the next century.
21adjacentNext to or near somethingThe laboratory is adjacent to the main research building.
22anomalySomething that deviates from what is standardThe temperature anomaly suggested an unusual weather pattern.
23compoundA substance made of two or more elementsWater is a compound of hydrogen and oxygen.
24dormantTemporarily inactiveThe volcano has been dormant for over 500 years.
25erosionThe gradual wearing away of materialCoastal erosion threatens buildings near the shoreline.
26fusionThe joining of two or more thingsNuclear fusion powers the sun and other stars.
27indigenousOriginating naturally in a particular placeThe plant is indigenous to the tropical regions of South America.
28magnitudeThe great size or importance of somethingThe magnitude of the earthquake was measured at 7.2.
29nutrientA substance that provides nourishmentSoil nutrients are essential for healthy plant growth.
30oscillateTo move back and forth at a regular speedThe pendulum oscillates with a period of exactly one second.
31precipitationRain, snow, sleet, or hailAnnual precipitation in the region averages 800 millimeters.
32quantifyTo express as a number or amountResearchers attempted to quantify the environmental impact of the factory.
33resilientAble to recover quickly from difficultiesCoral reefs are less resilient to temperature changes than previously thought.
34saturateTo fill completely with a substanceThe soil was saturated with water after three days of rain.
35thermalRelating to heatThermal energy from geothermal sources can generate electricity.
36volatileLiable to change rapidly and unpredictablyThe chemical compound is highly volatile at room temperature.
37wavelengthThe distance between successive wave peaksDifferent colors of light have different wavelengths.
38yieldTo produce or provide a resultThe experiment yielded unexpected results.
39acuteSevere or intenseThe patient experienced acute pain in the lower back.
40benignNot harmful in effectThe tumor was benign and required no treatment.
41chronicPersisting for a long timeChronic exposure to pollution increases the risk of respiratory disease.
42contaminateTo make impure by exposure to a harmful substanceIndustrial waste can contaminate groundwater supplies.
43deficiencyA lack or shortageIron deficiency is one of the most common nutritional problems worldwide.
44differentiateTo recognize or identify differencesStudents must differentiate between correlation and causation.
45extractTo remove or take outScientists extract DNA from cell samples for genetic analysis.
46finiteHaving limits or boundsEarth has a finite supply of fossil fuels.
47gradientA rate of change in a quantityThe temperature gradient between the coast and inland areas is significant.
48inhibitTo hinder or restrainThe medication inhibits the growth of bacteria.
49latentExisting but not yet developed or visibleThe virus can remain latent in the body for years before symptoms appear.
50methodologyA system of methods used in a fieldThe research methodology involved both surveys and laboratory experiments.

Social Sciences (50 Words)

#WordDefinitionExample Sentence
1ideologyA system of ideas and idealsPolitical ideology shaped the country's approach to economic reform.
2demographicRelating to population characteristicsDemographic shifts are changing the composition of the workforce.
3hierarchyA system ranked by status or authorityIn medieval society, the hierarchy placed the king at the top.
4assimilateTo absorb and integrate into a wider societyImmigrants gradually assimilate into the culture of their new country.
5consensusGeneral agreement among a groupThe committee reached a consensus on the new policy.
6empiricalBased on verifiable observationEmpirical studies in psychology require rigorous experimental design.
7subjectiveBased on personal feelings rather than factsTaste in art is largely subjective.
8objectiveNot influenced by personal feelings; factualThe journalist strived to remain objective in her reporting.
9biasPrejudice in favor of or against somethingConfirmation bias leads people to seek information that supports their beliefs.
10stimulusSomething that provokes a responseThe government introduced an economic stimulus package.
11perceptionThe way something is understood or interpretedPublic perception of the policy changed after the debate.
12cognitiveRelating to mental processes of understandingCognitive development in children follows predictable stages.
13complyTo act in accordance with a rule or requestAll citizens must comply with federal tax regulations.
14contemporaryBelonging to the present timeContemporary research challenges many traditional assumptions.
15controversyProlonged public disagreementThe new law generated significant controversy among voters.
16deviateTo depart from an established courseThe results deviated significantly from the predicted outcome.
17disparityA great differenceIncome disparity between urban and rural areas continues to widen.
18domesticRelating to the home or one's own countryDomestic policy focuses on issues within national borders.
19ethnicRelating to a group sharing cultural traditionsThe city celebrates its ethnic diversity through annual festivals.
20facilitateTo make easier or help bring aboutTechnology facilitates communication across long distances.
21frameworkA basic structure underlying a conceptThe theoretical framework guides the research design.
22genderThe range of characteristics relating to masculinity and femininityStudies of gender roles have evolved significantly over decades.
23implicitImplied though not directly expressedThere was an implicit understanding that the rules applied to everyone.
24incentiveSomething that motivates actionTax incentives encourage businesses to invest in renewable energy.
25inequalityLack of equalityEconomic inequality remains a central issue in political debates.
26infrastructureBasic physical structures needed for operationAging infrastructure requires billions of dollars in repairs.
27legitimateConforming to rules or standardsThe court ruled that the election results were legitimate.
28liberalOpen to new ideas and willing to changeLiberal education emphasizes broad learning across disciplines.
29migrateTo move from one region to anotherMillions of people migrate to cities each year seeking employment.
30normA standard or pattern regarded as typicalSocial norms vary considerably between cultures.
31advocateTo publicly support a causeThe organization advocates for children's rights worldwide.
32allocateTo distribute resources for a purposeThe government allocated funding for public health programs.
33compriseTo consist of or be made up ofThe committee comprises representatives from twelve countries.
34constituteTo form or make upWomen constitute over half of the university's student body.
35constraintA limitation or restrictionBudget constraints forced the department to reduce staff.
36constructTo build or create; a conceptRace is widely understood as a social construct.
37contradictTo deny the truth of a statementThe new findings contradict the earlier study's conclusions.
38conventionalBased on traditional practicesConventional wisdom held that the economy would recover quickly.
39criteriaStandards by which something is judgedApplicants must meet all criteria to be considered for the position.
40crucialOf great importanceAccess to clean water is crucial for public health.
41deriveTo obtain from a sourceMany English words derive from Latin and Greek roots.
42diminishTo make or become lessThe influence of traditional media has diminished with the rise of the internet.
43distinctRecognizably differentThe two theories offer distinct explanations for the same phenomenon.
44dominantMost important or powerfulEnglish has become the dominant language in international business.
45empiricalBased on observation rather than theoryThe claim lacks empirical support.
46emphasizeTo give special importance toThe professor emphasized the importance of primary sources.
47excludeTo deny access or shut outThe study excluded participants under 18 years of age.
48exploitTo use selfishly or to develop a resourceCompanies must not exploit workers in developing countries.
49fluctuateTo rise and fall irregularlyOil prices fluctuate based on global supply and demand.
50fundamentalForming a necessary base or coreFreedom of speech is a fundamental right in democratic societies.

Arts & Humanities (50 Words)

#WordDefinitionExample Sentence
1aestheticConcerned with beauty or appreciation of beautyThe building's aesthetic appeal drew tourists from around the world.
2allegoryA story with a hidden moral meaningOrwell's Animal Farm is an allegory for political revolution.
3ambiguousOpen to more than one interpretationThe poem's ambiguous ending has sparked decades of debate.
4analogyA comparison between things for explanationThe professor used an analogy between the brain and a computer.
5anonymousOf unknown authorship or identityMany medieval poems were written by anonymous authors.
6archiveA collection of historical recordsThe national archive preserves documents from the founding era.
7articulateTo express clearly and effectivelyThe speaker articulated her position on educational reform.
8authenticOf undisputed origin; genuineScholars debated whether the manuscript was authentic.
9chronicleA factual written account of eventsThe medieval chronicle recorded events from 1100 to 1300.
10civilizationAn advanced state of human societyAncient Egyptian civilization produced remarkable architectural achievements.
11classicalRelating to ancient Greek or Roman cultureClassical architecture influenced building design for centuries.
12coherentLogical and consistentThe essay presented a coherent argument supported by evidence.
13commemorateTo honor the memory of an event or personThe monument commemorates soldiers who served in the war.
14commentaryAn expression of opinions about an event or situationThe novel serves as social commentary on class inequality.
15depictTo represent or show in a picture or storyThe mural depicts scenes from everyday life in ancient Rome.
16dialectA form of a language specific to a regionThe novelist wrote dialogue in the local dialect.
17discourseWritten or spoken communicationAcademic discourse requires precise language and evidence.
18doctrineA belief or set of beliefs held by a groupReligious doctrine influenced medieval European art and architecture.
19eloquentFluent and persuasive in speaking or writingThe lawyer delivered an eloquent closing argument.
20embodyTo give a body to; to representThe sculpture embodies the ideals of classical beauty.
21eraA long and distinct period of historyThe Renaissance era saw a revival of interest in classical learning.
22erodeTo gradually destroy or diminishTime has eroded the original details of the stone carvings.
23evokeTo bring a feeling or memory to mindThe painting evokes a sense of calm and tranquility.
24excerptA short extract from a larger workThe teacher read an excerpt from the novel.
25folkloreTraditional beliefs and stories of a communityThe region's folklore includes tales of mythical creatures.
26genreA category of artistic compositionThe novel belongs to the genre of historical fiction.
27heritageValued traditions passed between generationsUNESCO protects sites of outstanding cultural heritage.
28illuminateTo light up; to clarify or explainThe documentary illuminates the lives of Renaissance artists.
29interpretTo explain the meaning ofScholars interpret the text differently based on historical context.
30legacySomething handed down from the pastThe philosopher's legacy continues to influence modern thought.
31manuscriptA handwritten or typed documentThe original manuscript was discovered in a monastery library.
32medievalRelating to the Middle AgesMedieval literature often explored themes of honor and faith.
33metaphorA figure of speech comparing unlike thingsThe poet used the river as a metaphor for the passage of time.
34motifA recurring theme or designThe motif of light and darkness appears throughout the novel.
35narrativeA spoken or written account of eventsThe narrative follows three generations of one family.
36nuanceA subtle difference in meaningUnderstanding cultural nuance is essential for accurate translation.
37obscureNot well known; difficult to understandThe reference to an obscure historical event confused readers.
38paradoxA seemingly contradictory statement that reveals truthThe paradox of choice suggests that more options can lead to less satisfaction.
39perspectiveA particular way of viewing thingsThe historian examined events from the perspective of ordinary citizens.
40philosophicalRelating to the study of fundamental questionsThe novel raises philosophical questions about free will.
41pioneerA person who is among the first to exploreShe was a pioneer in the field of documentary filmmaking.
42prevalentWidespread; commonly occurringThe theme of exile is prevalent in 20th-century literature.
43profoundVery great or intense; deeply insightfulThe discovery had a profound impact on the study of ancient cultures.
44proseOrdinary written or spoken languageThe author is known for her clear, elegant prose.
45rhetoricThe art of effective or persuasive speakingPolitical rhetoric often simplifies complex issues.
46satireThe use of humor to criticizeThe play is a satire of modern consumer culture.
47symbolismThe use of symbols to represent ideasThe use of color symbolism is prominent in the artist's later works.
48themeA central topic or ideaThe theme of identity runs throughout the author's novels.
49traditionA custom or belief passed through generationsOral storytelling is an important tradition in many cultures.
50vernacularThe language spoken by ordinary peopleDante wrote The Divine Comedy in the Italian vernacular rather than Latin.

Business & Economics (50 Words)

#WordDefinitionExample Sentence
1acquisitionThe act of gaining possessionThe company's acquisition of its rival created a market leader.
2aggregateA whole formed by combining elementsAggregate demand measures total spending in an economy.
3allocateTo distribute for a particular purposeThe board allocated resources to the most profitable divisions.
4assessTo evaluate or estimateAnalysts assess the risk of each investment opportunity.
5assetA useful or valuable thing or personReal estate is considered a tangible asset.
6auditAn official inspection of accountsThe annual audit revealed no financial irregularities.
7commodityA raw material or primary agricultural productOil is one of the most traded commodities in the world.
8compensationSomething given in recognition of loss or serviceEmployee compensation includes salary, benefits, and bonuses.
9competitiveRelating to or characterized by competitionThe company maintains a competitive advantage through innovation.
10consolidateTo combine into a single more effective wholeThe merger consolidated two major airlines into one.
11consumerA person who purchases goods and servicesConsumer confidence drives spending in the retail sector.
12currencyA system of money in general useThe national currency depreciated against the dollar.
13deficitThe amount by which spending exceeds revenueThe government aims to reduce the budget deficit by 2028.
14depreciateTo diminish in value over timeVehicles depreciate significantly in their first year.
15diversifyTo vary or expand the range of productsThe company diversified into renewable energy markets.
16dividendA sum of money paid regularly to shareholdersThe board announced a quarterly dividend of $0.50 per share.
17enterpriseA business or companySmall enterprises account for the majority of job creation.
18equityThe value of shares issued by a companyThe startup raised equity funding from venture capitalists.
19expenditureThe action of spending fundsGovernment expenditure on education increased by 12%.
20fiscalRelating to government revenue and spendingFiscal policy plays a key role in economic stability.
21forecastA prediction about the futureEconomic forecasts predict steady growth for the next quarter.
22inflationA general increase in pricesInflation erodes the purchasing power of consumers.
23inventoryA complete list of items in stockThe retailer reduced inventory to cut storage costs.
24investTo put money into something for profitThe fund invested heavily in technology startups.
25liabilityA debt or obligationThe company's liabilities exceeded its assets.
26marginThe difference between cost and selling priceProfit margins improved after the restructuring.
27mergerThe combining of two organizations into oneThe merger created the largest bank in the region.
28monopolyExclusive control of a marketAntitrust laws aim to prevent monopoly in essential industries.
29negotiateTo discuss terms to reach an agreementThe two countries negotiated a new trade agreement.
30outsourceTo obtain goods or services from an outside supplierMany companies outsource manufacturing to reduce costs.
31portfolioA range of investments held by a person or organizationA diversified portfolio reduces overall investment risk.
32procurementThe process of obtaining goods or servicesThe procurement department manages all supplier contracts.
33profitFinancial gain from business activityNet profit increased by 15% compared to the previous year.
34quotaA limited quantity of a productImport quotas protect domestic industries from foreign competition.
35recessionA period of economic declineThe 2008 recession affected economies around the world.
36regulateTo control by means of rulesGovernment agencies regulate the financial services industry.
37retailThe sale of goods to the publicOnline retail has grown dramatically in the past decade.
38revenueIncome, especially from business activitiesAnnual revenue reached $5 billion for the first time.
39sectorA distinct part of an economyThe technology sector has driven economic growth in many countries.
40subsidyA sum of money granted by the governmentAgricultural subsidies support farmers during difficult seasons.
41surplusAn amount beyond what is neededThe trade surplus indicates exports exceeded imports.
42tariffA tax on imported goodsNew tariffs increased the cost of imported steel.
43transactionAn instance of buying or sellingDigital payment systems have simplified financial transactions.
44utilityThe state of being useful; a public serviceUtility companies provide electricity, gas, and water.
45ventureA risky business enterpriseThe joint venture combined expertise from both companies.
46volatileLiable to change rapidly and unpredictablyStock markets are more volatile during times of uncertainty.
47wholesaleThe selling of goods in large quantitiesWholesale prices for raw materials have risen sharply.
48yieldThe amount produced; return on investmentThe bond yields 3.5% annually.
49benchmarkA standard against which things are measuredThe S&P 500 serves as a benchmark for U.S. stock performance.
50stakeholderA person with an interest in a businessAll stakeholders were consulted before the decision was finalized.

Study Strategies

Flashcard Method

Create flashcards with the word on one side and definition + example on the other. Review daily using spaced repetition:

  • • Day 1: Learn 20 new words
  • • Day 2: Review Day 1 + learn 20 new
  • • Day 4: Review Day 1 + Day 2
  • • Day 7: Review all previous words

Context Reading

The best way to learn vocabulary is through reading. Each day:

  • • Read one academic article (science, history, etc.)
  • • Underline words from this list when you encounter them
  • • Note any new words not on this list
  • • Write a summary using 3-5 vocabulary words

Word Family Expansion

Learn multiple forms of each word to maximize your vocabulary:

  • analyze → analysis, analytical, analyst
  • regulate → regulation, regulatory, regulator
  • innovate → innovation, innovative, innovator
  • • This triples your effective vocabulary

Complete the Words Practice

Practice spelling these words with partial clues:

  • • Cover part of the word and try to complete it
  • • Write each word 3 times from memory
  • • Focus on commonly misspelled words
  • • Practice with a partner who gives you partial words

References & Further Reading

  1. Academic Word ListVictoria University of Wellington (Accessed: February 2026)
  2. TOEFL iBT 2026 Reading SectionETS Official Website (Accessed: February 2026)
  3. TOEFL iBT Reading PreparationETS TOEFL Preparation (Accessed: February 2026)

External links open in a new tab. Writing30 is not affiliated with the linked sources.

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