endanger
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B2 verb /ɪnˈdeɪndʒər/

endanger

Meaning
To put someone or something at risk or in danger.
Example
Cutting down forests can endanger many species of animals.
C2 adjective /ˌɛl.ɪˈmɑː.səˌnɛr.i/

eleemosynary

Meaning
Relating to charity; dependent on or supported by charity.
Example
The hospital was founded as an eleemosynary institution.
C1 adjective ɛnˈdɛm.ɪk

endemic

Meaning
Native and restricted to a certain place.
Example
The Bengal tiger is endemic to the Indian subcontinent.
C2 noun /ɪɡˈzɛmplɑːr/

exemplar

Meaning
A model or pattern to be copied or imitated.
Example
She is an exemplar of kindness and generosity.
C1 verb /ˈɛm.ə.neɪt/

emanate

Meaning
To come out or spread from a source.
Example
A sweet fragrance emanated from the garden.
C2 verb /ɪnˈtriːt/

entreat

Meaning
To ask earnestly or beg someone to do something.
Example
She entreated him to stay a little longer.
C1 adjective ɪˌlektrəʊmæɡˈnetɪk

electromagnetic

Meaning
Relating to both electricity and magnetism or their interaction.
Example
Electromagnetic forces repel protons.
C1 verb /ɪnˈdɪr/

endear

Meaning
To cause someone to be loved or liked.
Example
Her kindness and generosity endeared her to the community.
C2 noun /juːˌtrɑː.fɪˈkeɪ.ʃən/

eutrophication

Meaning
Excessive richness of nutrients in a lake or other body of water, frequently due to runoff from the land, which causes a dense growth of plant life and death of animal life from lack of oxygen.
Example
Excess fertilizers lead to eutrophication in lakes.
B1 adjective /ˌel.ɪˈmen.tər.i/

Elementary

Meaning
basic; fundamental; primary level
Example
He learned elementary mathematics in school.
B2 noun ˈikoʊ ˈfrɛndli tɛkˈnɑləʤiz

eco-friendly technologies

Meaning
Technologies that are designed to minimize environmental impact and promote sustainability.
Example
Eco-friendly technologies can mitigate pollution.
B1 verb /ɪmˈplɔɪ/

employ

Meaning
to hire someone to do a job; to use something effectively
Example
The company plans to employ more engineers next year.
C2 noun /ˈɛdi/

eddy

Meaning
A circular movement of water, air, or smoke, counter to the main current, causing a small whirlpool or turbulence.
Example
The canoe was caught in an eddy near the rocks.
B2 noun /ɪɡˌzædʒ.əˈreɪ.ʃən/

Exaggeration

Meaning
a statement that represents something as better or worse than it really is
Example
His story about the fish he caught was clearly an exaggeration.
C1 verb /ˈɛm.jʊˌleɪt/

emulate

Meaning
to imitate someone or something with the intent to equal or surpass
Example
Young athletes often emulate their idols.
C2 adjective /ˌɛfləˈrɛsənt/

efflorescent

Meaning
in the process of blooming or flourishing
Example
The efflorescent trees made the park look beautiful.
C1 adjective /ɪnˈdjʊər.ə.bəl/

Endurable

Meaning
able to be endured; bearable; tolerable
Example
The pain was endurable with proper medication.
B1 adverb /ɪnˈtaɪərli/

Entirely

Meaning
completely; wholly; fully
Example
The building was entirely destroyed in the fire.
C1 adjective ˈek.wɪ.tə.bəl

equitable

Meaning
Fair and impartial
Example
Equitable AI ensures fairness in technology use.
B1 verb /ɪˈstæblɪʃ/

establish

Meaning
To set up, create, or bring into existence something on a firm basis.
Example
The company plans to establish a new office in Dhaka.
C2 verb /ɪˈdjuːs/

educe

Meaning
To draw out or bring forth something latent or hidden.
Example
The teacher tried to educe a response from the shy student.
C1 adjective /ɪkˈsiːdɪŋ/

Exceeding

Meaning
going beyond; surpassing; extremely
Example
The project was completed with exceeding excellence.
C1 verb /ɪnˈkæp.sjʊ.leɪt/

encapsulate

Meaning
To express the essential features of something succinctly; to summarize or contain within.
Example
The introduction should encapsulate the main points of the article.
C1 verb /ɪnˈɡreɪv/

engrave

Meaning
to cut or carve a design, letter, or pattern into a hard surface
Example
The craftsman engraved her name on the silver ring.
C2 noun /ˈɛnsaɪn/

ensign

Meaning
A flag or standard, especially a military or naval one indicating nationality; also a junior officer in the navy or coast guard.
Example
The ship raised its national ensign before leaving the harbor.
C1 noun /ɒnˈsɒmbəl/

ensemble

Meaning
a group of things or people viewed as a whole, especially performers in music or theater
Example
The theater ensemble gave a spectacular performance.
B2 noun /ɪmˈbærəsmənt/

embarrassment

Meaning
a feeling of self-consciousness, shame, or awkwardness
Example
Her face turned red with embarrassment after the mistake.
B2 adjective ˌiːvəˈluːʃənəri

evolutionary

Meaning
Relating to or denoting the gradual development of something, especially from a simple to a more complex form.
Example
The evolutionary changes in species are fascinating.
B2 verb /ɪnˈhæns/

enhance

Meaning
to improve the quality, value, or extent of something
Example
The new features will enhance the user experience.
B2 verb /ɪkˈspɛl/

expel

Meaning
to officially force someone to leave a place or organization
Example
The student was expelled from school for misconduct.
C2 noun /ˌɛpɪˈsaɪklɔɪd/

epicycloid

Meaning
a curve traced by a point on the circumference of a circle that rolls around the outside of another circle
Example
The mathematician demonstrated how to draw an epicycloid.
C1 noun /ɪˈnɪɡ.mə/

enigma

Meaning
A person or thing that is mysterious, puzzling, or difficult to understand.
Example
Life remains an enigma to many.
C2 noun /ɪˌpɪstəˈmɒlədʒi/

epistemology

Meaning
The branch of philosophy that studies the nature, origin, and scope of knowledge.
Example
Epistemology explores the difference between justified belief and opinion.
B2 adjective /ˌiːkəˈnɒmɪkl/

economical

Meaning
Careful in the use of resources; providing good value or efficiency.
Example
Driving a hybrid car is economical in the long run.
C1 noun /ɪkˌsperɪˈmɛnteɪʃən/

experimentation

Meaning
The process of performing a scientific procedure to make a discovery, test a hypothesis, or demonstrate a known fact.
Example
Experimentation leads to groundbreaking products.
B2 noun /ˌɒn.trə.prəˈnɜːr/

Entrepreneur

Meaning
a person who organizes and operates a business or businesses
Example
The young entrepreneur started her own tech company at age 22.
C1 noun /ɪkˈspoʊnənt/

exponent

Meaning
a person who supports, promotes, or explains an idea; in math, a symbol denoting power
Example
She is a leading exponent of modern dance.
B2 noun /ɪˈstæblɪʃmənt/

establishment

Meaning
An organization, business, or system; the act of setting something up.
Example
The restaurant is a new establishment in town.
B1 noun /ɪɡˌzæm.ɪˈneɪ.ʃən/

examination

Meaning
a formal test of knowledge or ability
Example
She is preparing for her final examination.
B2 noun /iˈkɒl.ə.dʒi/

ecology

Meaning
the study of how living things interact with each other and their environment
Example
Ecology helps us understand how pollution affects animals and plants.
A2 verb /ɪkˈspekt/

expect

Meaning
to think something will happen; to anticipate
Example
I expect the meeting to start at 9 AM.
C1 noun /ɪkˈstræv.ə.ɡəns/

Extravagance

Meaning
lack of restraint in spending money; excessive expense
Example
The wedding celebration was criticized for its unnecessary extravagance.
C2 adjective /ˈɛrzæts/

ersatz

Meaning
made or used as a substitute, typically an inferior one
Example
The cheap shoes were made of ersatz leather.
B2 adjective ˌɒn.trə.prəˈnɜː.ri.əl

entrepreneurial

Meaning
Relating to or characterized by the activity of setting up a business or businesses, taking on financial risks in the hope of profit.
Example
His entrepreneurial spirit led him to establish a successful startup.
B1 noun /ˌiːkəˈnɒmɪks/ or /ˌɛkəˈnɒmɪks/

economics

Meaning
The study of production, consumption, and transfer of wealth.
Example
He is studying economics at university.
C2 verb /ɪˈmɛnd/

emend

Meaning
to correct or revise a text, especially for errors
Example
The editor emended the manuscript before publication.
C2 adjective /ɪˈmɛrɪtəs/

emeritus

Meaning
having retired but allowed to retain their title as an honor
Example
He is a professor emeritus at the university.
C2 verb /ɪnˈvaɪərən/

environ

Meaning
to surround or enclose; to encircle
Example
Mountains environ the small valley.
C2 adjective /ˈeksɪkrəbl/

execrable

Meaning
Extremely bad or unpleasant.
Example
The movie was so execrable that many people left the theater early.
C2 adjective /ɪˈfɛktʃuəl/

effectual

Meaning
producing a desired or intended effect, often used in formal contexts
Example
Her effectual efforts brought peace to the community.
B1 noun /ˌek.sɪˈbɪʃ.ən/

Exhibition

Meaning
a public display of works of art or other items of interest
Example
The art exhibition featured paintings from local artists throughout the region.
B1 noun /ɪnˈθjuː.zi.æz.əm/

Enthusiasm

Meaning
intense and eager enjoyment, interest, or approval
Example
Her enthusiasm for the project inspired the entire team.
B1 adverb /ˈɛlswɛr/

elsewhere

Meaning
In, at, or to some other place.
Example
If you can’t find it here, try looking elsewhere.
B1 noun /ˌiː.kəˈnɒm.ɪk ɡrəʊθ/

Economic Growth

Meaning
The increase in the production of goods and services in an economy over time, measured by the expansion of economic output, income, and investment.
Example
The country's economic growth has been remarkable over the past decade.
B2 noun /ɪkˈses/

Excess

Meaning
an amount of something that is more than necessary, permitted, or desirable
Example
The excess food from the party was donated to the local shelter.
A1 noun /ˈiːv.nɪŋ/

evening

Meaning
the part of the day between afternoon and night
Example
We went for a walk in the cool evening.
C2 adverb /ˌɛkspəˈdɪʃəsli/

expeditiously

Meaning
in a quick and efficient manner
Example
The application was processed expeditiously.
C1 noun /ˈɛspiənɑːʒ/

espionage

Meaning
The practice of spying or using spies to gather secret information, usually for political or military purposes.
Example
The agent was arrested on charges of espionage against the state.
B1 adjective /ɪkˈspɪəriənst/

experienced

Meaning
having knowledge or skill in a particular field gained through experience
Example
She is an experienced teacher who knows how to handle difficult students.
C2 noun /ˈɪrˌʃɑːt/

earshot

Meaning
the range or distance within which a sound can be heard
Example
The children whispered secrets out of earshot of their parents.
A2 noun/verb /ˈɛɡzɪt/

exit

Meaning
A way out of a place; the act of leaving.
Example
He quickly found the nearest exit during the fire drill.
A1 adverb /ɛls/

else

Meaning
In addition; besides.
Example
Is there anything else you need?
C1 noun /ˈiːzl̩/

easel

Meaning
a frame for supporting an artist's canvas while painting or drawing
Example
The artist placed the canvas on the easel before starting to paint.
A2 adjective /ɪkˈsaɪtɪŋ/

exciting

Meaning
Causing great enthusiasm and eagerness.
Example
The journey has been an exciting experience.
B2 noun ˌel.ɪ.dʒəˈbɪl.ə.ti

eligibility

Meaning
The state of having the right to do or obtain something through satisfaction of the appropriate conditions.
Example
Eligibility criteria maintain fairness.
C2 noun /ɪˈskʌtʃən/

escutcheon

Meaning
a shield or emblem bearing a coat of arms
Example
The family crest was displayed on the escutcheon above the fireplace.
C2 noun /ˌɛpɪzəʊˈɒtɪk/

epizootic

Meaning
An outbreak of disease affecting many animals of one kind at the same time.
Example
The farmer feared an epizootic might wipe out his cattle.
C2 noun /ɪɡˈzɔːrbɪtəns/

exorbitance

Meaning
The quality of being excessive, unreasonable, or going beyond proper limits.
Example
The exorbitance of the hotel's prices shocked the tourists.
B1 noun /ɪnˈkʌrɪdʒmənt/

encouragement

Meaning
the action of giving someone support, confidence, or hope
Example
Her encouragement helped me finish the project.
B2 verb, adjective /ɪˈlæbəreɪt/ (verb), /ɪˈlæbərət/ (adjective)

elaborate

Meaning
verb: to explain something in detail; adjective: detailed and complicated in design
Example
She asked him to elaborate on his proposal.
A1 adjective/adverb /ɪˈnʌf/

enough

Meaning
as much or as many as required
Example
We have enough food for everyone.
B1 noun ˈiːˌkɒm.ɜːrs

e-commerce

Meaning
The process of buying and selling goods or services through the internet.
Example
E-commerce has revolutionized the way people shop.
C2 adverb /ɪkˈstem.pɔːr/

Extempore

Meaning
without preparation; spontaneously; improvised
Example
The speaker delivered an impressive extempore speech at the conference.
C1 verb /ɪkˈstɔːrt/

extort

Meaning
to obtain something, especially money, by force, threats, or unfair means
Example
The gang attempted to extort money from local shopkeepers.
B2 noun ɪˈroʊʒən

erosion

Meaning
The gradual destruction or diminishing of something.
Example
Power struggles often lead to the erosion of humanity.
C2 verb /ɪɡˈzʌlt/

exult

Meaning
to show or feel great joy, often as a result of success
Example
The fans exulted after their team won the championship.
B2 adjective /ɪkˈsprɛsɪv/

expressive

Meaning
Effectively conveying thought or feeling.
Example
Her eyes were so expressive that no words were needed.
C2 verb /ɪnˈdjuː/

endue

Meaning
To provide or endow with a quality or ability.
Example
The leader was endued with wisdom and courage.
C2 adjective /ˈɛnərˌveɪtɪd/

enervated

Meaning
Lacking energy, vitality, or strength; weakened or exhausted.
Example
After the long meeting, she felt completely enervated.
C1 verb ɪˈluː.sɪ.deɪt

elucidate

Meaning
make (something) clear; explain.
Example
The professor elucidated the theory with simple examples.
B1 verb /ɪkˈsplɔːr/

explore

Meaning
to travel through or study something in order to learn more about it
Example
They decided to explore the forest together.
C2 noun /ɪˈfrʌntəri/

effrontery

Meaning
shameless or rude boldness
Example
He had the effrontery to lie even when caught red-handed.
B1 adjective /ˌɛdjuˈkeɪʃənl/

educational

Meaning
Relating to the provision of education or having an educative effect.
Example
The journey was an educational experience.
C1 noun /ɪˈvændʒəlɪst/

evangelist

Meaning
A person who seeks to convert others to the Christian faith, especially by public preaching.
Example
The evangelist traveled across the country spreading his message.
C1 noun /ˈiːdɪkt/

edict

Meaning
An official order, proclamation, or decree issued by an authority.
Example
The king issued an edict banning smoking in public places.
C1 noun /ɪkˈstriː.mɪst/

Extremist

Meaning
a person who holds extreme political or religious views
Example
The government is taking measures to prevent extremist activities.
B2 noun ˌiːkəˈlɒdʒɪkəl ˈbæləns

ecological balance

Meaning
A state of dynamic equilibrium within a community of organisms.
Example
Maintaining ecological balance is essential for a sustainable planet.
C2 noun /ɪɡˈzækʃən/

exaction

Meaning
the act of demanding or obtaining something, especially unfairly
Example
The peasants suffered under the king's heavy exactions.
B2 noun /ˈiː.ɡoʊ/

Ego

Meaning
a person's sense of self-esteem or self-importance
Example
His big ego prevented him from accepting criticism from others.
A2 noun /ˈer.ər/

Error

Meaning
a mistake; something done incorrectly or wrong
Example
The error in the calculation led to incorrect results.
C2 verb /ɪˈnəʊbəl/

ennoble

Meaning
to give someone a noble rank or to elevate in dignity or honor
Example
His selfless actions ennobled his character in the eyes of others.
A2 preposition/conjunction /ɪkˈsɛpt/

except

Meaning
not including; other than
Example
Everyone was invited except John.
B2 noun ɪnˈhɑːns.mənt

enhancement

Meaning
An increase or improvement in quality, value, or extent.
Example
Enhancement of education quality is vital.
C2 noun /ˌɛntəˈmɒlədʒi/

entomology

Meaning
The scientific study of insects.
Example
She studied entomology to understand the behavior of bees.
B1 adjective /ɪnˈɡeɪdʒd/

Engaged

Meaning
busy; occupied; involved in activity; betrothed
Example
He is engaged in important research work.
B1 noun /ɪkˈstent/

Extent

Meaning
the area covered by something; the degree to which something has spread
Example
The extent of the damage caused by the flood was enormous.
B2 noun ˈiːkoʊˌtʊrɪzəm

Eco-tourism

Meaning
A form of tourism involving responsible travel to natural areas that conserves the environment and improves the well-being of local people.
Example
Eco-tourism promotes responsible travel to natural areas.
C2 adjective /ɪɡˈzɔːstɪbəl/

exhaustible

Meaning
able to be used up completely; not infinite
Example
Coal and oil are exhaustible resources.
B1 adjective /ɪmˈbær.ə.sɪŋ/

Embarrassing

Meaning
causing shame or awkwardness; uncomfortable; humiliating
Example
It was embarrassing when I forgot her name.
B1 verb /ɪkˈspɪəriənsɪŋ/

experiencing

Meaning
Encountering or undergoing an event or occurrence.
Example
The travelers are experiencing the thrill of adventure.
A2 abbreviation /iː ˈdʒiː/

e.g.

Meaning
For example (from Latin 'exempli gratia').
Example
You should eat more fruits, e.g., apples and bananas.
C2 verb /ɪnˈkʌmbər/

encumber

Meaning
to burden or weigh down something, making it difficult to move or progress
Example
She was encumbered by the heavy luggage during her journey.
A1 pronoun /ˈɛvribɒdi/

everybody

Meaning
all people; everyone
Example
Everybody enjoyed the party.
C1 adjective ɪˈræt.ɪk

erratic

Meaning
Unpredictable and inconsistent; not even or regular in pattern or movement.
Example
His erratic behavior confused his colleagues.
C2 noun /juː/

Ewe

Meaning
a female sheep
Example
The ewe gave birth to twin lambs.
C1 adjective /ɪɡˈzæspəˌreɪtɪd/

exasperated

Meaning
greatly annoyed or irritated
Example
She gave him an exasperated look after his repeated mistakes.
C1 adjective /ˈɜːrθ.li/

Earthly

Meaning
relating to the earth or human life; worldly; material rather than spiritual
Example
He focused on earthly pleasures rather than spiritual growth.
B2 noun /ˈɛseɪ/

essay

Meaning
A short piece of writing on a particular subject.
Example
She wrote an essay about climate change.
C1 noun /ɪkˈstɔːr.ʃən/

extortion

Meaning
the practice of obtaining something, especially money, through force or threats
Example
The businessman was arrested for extortion after threatening his partner.
C2 noun /ɪˈlɪksər/

elixir

Meaning
A magical or medicinal potion believed to cure illnesses or grant immortality.
Example
The old legend spoke of an elixir that could grant eternal youth.
B2 verb /ɪmˈpaʊər/

empower

Meaning
To give someone the power or authority to do something; to make someone stronger or more confident.
Example
Education can empower people to improve their lives.
C2 adjective /ɪkˈstɛnsəbl/

extensible

Meaning
able to be extended; capable of expansion.
Example
The software is designed to be extensible with new features.
B2 adjective /ɪkˈskluːdɪd/

Excluded

Meaning
not included; left out; barred from participation
Example
He felt excluded from the group activities and conversations.
B2 adverb /ɪˈməʊʃənəli/

emotionally

Meaning
in a way that relates to a person's feelings or emotions
Example
She became emotionally attached to her pet.
C1 adjective /ˈɛm.ɪ.nənt/

eminent

Meaning
Famous and respected within a particular sphere or profession.
Example
He is an eminent scientist known for groundbreaking research.
C1 noun ɪˌməʊ.ʃəˈnæl.ɪ.ti

emotionality

Meaning
The quality of being driven by emotions rather than reason; emotional responsiveness.
Example
His emotionality often influenced his decisions.
C1 noun /iːl/

Eel

Meaning
a long, snake-like fish that lives in both fresh and salt water
Example
The electric eel can generate powerful electric shocks.
C1 adverb ˌekspəˈnenʃəli

exponentially

Meaning
At a rapidly increasing rate; growing or expanding very quickly and intensely.
Example
Internet adoption is growing exponentially worldwide.
B2 adverb /ɪkˈstɛnsɪvli/

extensively

Meaning
in a thorough or wide-ranging manner
Example
She traveled extensively across Europe for her research.
C1 noun /ˈɜːr.θən pɒt/

Earthen pot

Meaning
a container made of baked clay or earth, used for cooking or storing
Example
The earthen pot keeps water naturally cool in summer.
C2 adjective ˈen.də.krɪn

endocrine

Meaning
Relating to or denoting glands that secrete hormones directly into the blood.
Example
The endocrine system regulates metabolism and growth.