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C2 noun /ˈiːən/

eon

Meaning
an indefinitely long period of time; an age
Example
Dinosaurs lived millions of years ago, in a different eon.
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.
C2 noun /ˌɛmjʊˈleɪ.ʃən/

emulation

Meaning
Reproducing something or following someone to achieve success.
Example
The software allows the emulation of old video games on modern devices.
C2 adjective /ˌen.zɪˈmæt.ɪk/

enzymatic

Meaning
Relating to or involving enzymes, which are proteins that catalyze biochemical reactions in living organisms.
Example
Enzymatic reactions regulate metabolism in the human body.
C2 adjective ˈɛr.jʊ.daɪt

erudite

Meaning
Having or showing great knowledge or learning; scholarly and intellectual.
Example
The professor's erudite lecture fascinated the students.
C2 noun /ɪˈklɛktɪˌsɪzəm/

eclecticism

Meaning
A method or practice of deriving ideas, style, or taste from a broad and diverse range of sources.
Example
The architect’s work shows eclecticism by blending modern and traditional elements.
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 adjective /ɪˈfɛktʃuəl/

effectual

Meaning
producing a desired or intended effect, often used in formal contexts
Example
Her effectual efforts brought peace to the community.
C2 adjective /ɪˈfʌldʒənt/

effulgent

Meaning
Shining brilliantly; radiant.
Example
Her effulgent smile brightened everyone's mood.
C2 noun /juːˈdʒen.ɪks/

eugenics

Meaning
the study or practice of improving the genetic quality of the human population
Example
Eugenics has been criticized for its unethical applications in history.
C2 noun /ɛθˈnɒlədʒi/

ethnology

Meaning
the study of the characteristics of different peoples and the differences and relationships between them
Example
She specialized in ethnology to better understand cultural diversity.
C2 noun /juː/

Ewe

Meaning
a female sheep
Example
The ewe gave birth to twin lambs.
C2 verb /ɪɡˈzɪləreɪt/

exhilarate

Meaning
To make someone feel very happy, animated, or excited.
Example
The mountain view exhilarated the travelers.
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.
C2 adjective /ɪˈfjuːsɪv/

effusive

Meaning
Expressing feelings of gratitude, pleasure, or approval in an unrestrained or heartfelt manner.
Example
She gave him an effusive welcome after his long journey.
C2 adjective /ɪˈfiːt/

effete

Meaning
Lacking vitality, strength, or effectiveness; weak and overrefined.
Example
The empire became effete after centuries of indulgence.
C2 noun /ˌɛksaɪˈteɪʃən/

excitation

Meaning
a state of great excitement or the process of stimulating activity
Example
The news created great excitation among the fans.
C2 adjective /ˌɛkstrəˌdʒuːˈdɪʃəl/

extrajudicial

Meaning
done outside the authority of the legal system or judicial process
Example
The activists condemned the extrajudicial killings.
C2 noun /ɛˌspriː də ˈkɔːr/

esprit de corps

Meaning
A feeling of pride, fellowship, and loyalty shared by members of a group.
Example
The team's esprit de corps was evident in their cooperative effort.
C2 noun /ɪˈlɛk.trə.taɪp/

electrotype

Meaning
A duplicate printing plate made by electroplating a mold of the original.
Example
The printer used an electrotype to produce multiple copies of the page.
C2 verb /ˌɛfəˈvɛs/

effervesce

Meaning
To give off bubbles of gas; to show excitement, liveliness, or enthusiasm.
Example
The soda began to effervesce as soon as it was opened.
C2 verb /ɪˈmɛnd/

emend

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

evince

Meaning
to show or demonstrate clearly
Example
She evinced her interest in the project through active participation.
C2 noun /ˌɛntəˈmɒlədʒi/

entomology

Meaning
The scientific study of insects.
Example
She studied entomology to understand the behavior of bees.
C2 adjective /ˈek.wə.bəl/

Equable

Meaning
calm and even-tempered; not easily disturbed
Example
He maintained an equable temperament throughout the crisis.
C2 verb /ɪkˈstɛnjueɪt/

extenuate

Meaning
to make an offense, fault, or situation seem less serious by providing an excuse or explanation
Example
The lawyer tried to extenuate his client's actions by highlighting his difficult childhood.
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.
C2 verb /ɪkˈspeɪʃiˌeɪt/

expatiate

Meaning
to speak or write at length or in detail
Example
The professor expatiated on the importance of critical thinking.
C2 noun /ɪɡˈzækʃən/

exaction

Meaning
the act of demanding or obtaining something, especially unfairly
Example
The peasants suffered under the king's heavy exactions.
C2 adjective /ˌɛpɪkjʊˈriːən/

epicurean

Meaning
relating to the enjoyment of fine food, drink, and luxury
Example
The chef prepared an epicurean feast for the guests.
C2 verb /ɪnˈtriːt/

entreat

Meaning
To ask earnestly or beg someone to do something.
Example
She entreated him to stay a little longer.
C2 noun /ˈiːɡres/

egress

Meaning
The action of going out or leaving a place; an exit.
Example
The emergency door provided an egress for the trapped workers.
C2 noun /ˈɛpəʊd/

epode

Meaning
A form of lyric poem written in couplets, often following a strophe and antistrophe in classical Greek poetry.
Example
The poet concluded his ode with a striking epode.
C2 noun /ˈɛpəlɛt/

epaulet

Meaning
An ornamental shoulder piece on a garment, especially on the coat or jacket of a military uniform.
Example
The general’s uniform had a golden epaulet on each shoulder.
C2 noun /ˈjuːfəni/

euphony

Meaning
The quality of being pleasing to the ear, especially through harmonious combination of words.
Example
The orator's speech was full of euphony and rhythm.
C2 noun /ɪˈmɛtɪk/

emetic

Meaning
a substance that causes vomiting
Example
The doctor administered an emetic to remove the poison.
C2 verb /ɪˈspaɪ/

espy

Meaning
To catch sight of or notice something, especially from a distance.
Example
From the hilltop, she espied a small village in the valley.
C2 adjective /ˌeθ.noʊˈsen.trɪk/

ethnocentric

Meaning
evaluating other cultures according to the standards of one's own culture
Example
His ethnocentric attitude made it hard for him to appreciate foreign traditions.
C2 verb /ɪkˈspɒstjʊleɪt/

expostulate

Meaning
to express strong disapproval or disagreement
Example
She expostulated with her friend about the risky decision.
C2 noun /ɪkˈsɪʒən/

excision

Meaning
the act of cutting something out, especially by surgical removal
Example
The excision of the infected tissue prevented further complications.
C2 adjective /ˌɛlɪˈfæntaɪn/

elephantine

Meaning
Huge, clumsy, or resembling an elephant in size or movement.
Example
The man moved with an elephantine grace.
C2 noun /ɛmˈpɪrɪˌsɪzəm/

empiricism

Meaning
the theory that all knowledge is derived from sense-experience
Example
Empiricism argues that knowledge comes from experience and observation.
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 /ɪkˈstɛnsər/

extensor

Meaning
a muscle that serves to extend or straighten a limb or part of the body.
Example
The extensor muscles in the arm help straighten the elbow.
C2 noun /ɪkˈspiːdiənsi/

expediency

Meaning
the quality of being convenient and practical despite possibly being improper or immoral
Example
He acted out of political expediency rather than principle.
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.
C2 adjective /ˌjuːləˈdʒɪstɪk/

eulogistic

Meaning
Expressing praise or admiration, often formally.
Example
The speaker gave a eulogistic account of the leader’s achievements.
C2 adjective /ˈɛrənt/

errant

Meaning
behaving wrongly or straying from the proper course or standards
Example
The teacher disciplined the errant student.
C2 adjective /ˌɛkjʊˈmɛnɪkəl/

ecumenical

Meaning
Promoting unity among different Christian churches or religions.
Example
The leaders gathered for an ecumenical conference to encourage dialogue.
C2 adjective /ˈɛstɪməbl/

estimable

Meaning
Worthy of great respect.
Example
Her estimable achievements inspired the whole community.
C2 adjective /ˈɛksplɪkəbəl/

explicable

Meaning
able to be explained or understood
Example
His sudden anger was explicable given the stressful situation.
C2 verb /ˈɛksplɪkeɪt/

explicate

Meaning
to make an idea or principle clear by explaining it in detail
Example
The professor tried to explicate the theory of relativity for his students.
C2 verb /ˈɛnərˌveɪt/

enervate

Meaning
To weaken or drain someone of strength or vitality.
Example
The long hours of work enervated him.
C2 adjective /ˈɛkstənt/

extant

Meaning
Still in existence; surviving.
Example
Only a few manuscripts from the ancient library are extant.
C2 noun /ˌɛksəˈdʒiːsɪs/

exegesis

Meaning
A critical explanation or interpretation of a text, especially a religious scripture.
Example
The professor gave a detailed exegesis of the biblical passage.
C2 noun /ɛmˈpɔːriəm/

emporium

Meaning
A large retail store selling a wide variety of goods.
Example
They visited the new emporium to buy furniture and home decor.
C2 adjective /ɪkˈskɜːsɪv/

excursive

Meaning
Tending to digress or wander; moving away from the main subject.
Example
His excursive lecture left the students confused about the main topic.
C2 verb /ɪnˈtræp/

entrap

Meaning
To catch or trick someone into a difficult situation.
Example
The police tried to entrap the criminal with false evidence.
C2 noun /ɪˈfɛmɪnəsi/

effeminacy

Meaning
The quality of showing traits traditionally associated with women, such as delicacy or softness.
Example
In ancient times, effeminacy was often criticized as a sign of weakness.
C2 noun /ɪˈfluːviəm/

effluvium

Meaning
an unpleasant or harmful odor, secretion, or discharge
Example
The effluvium from the factory spread across the neighborhood.
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.
C2 noun ˌɛr.jʊˈdɪʃ.ən

erudition

Meaning
The quality of having or showing great knowledge or learning; scholarship.
Example
His erudition in history impressed the entire audience.
C2 verb /ɪˈfjuːz/

effuse

Meaning
To pour out or express feelings freely and openly.
Example
She effused gratitude for the help she received.
C2 verb /ɪkˈskruːʃieɪt/

excruciate

Meaning
to cause intense pain or suffering
Example
The injury excruciated him with unbearable pain.
C2 adjective /ˌɛkspəˈdɪʃəs/

expeditious

Meaning
Done with speed and efficiency.
Example
The expeditious delivery of the package was appreciated.
C2 noun /ɛnˈsɪklɪkəl/

encyclical

Meaning
a formal letter sent by the Pope to Catholic churches, usually addressing important issues
Example
The Pope issued an encyclical on climate change and moral responsibility.
C2 verb /ɛnˈkɪndl/

enkindle

Meaning
to set on fire or inspire strong emotion
Example
The speech enkindled hope in the audience.
C2 adjective /ˌiːvənˈhændɪd/

evenhanded

Meaning
Fair and impartial; showing no bias or favoritism.
Example
The judge was praised for her evenhanded approach to the case.
C2 verb /ɪnˈræptʃər/

enrapture

Meaning
To fill someone with great delight or joy.
Example
The beautiful music enraptured the audience.
C2 adjective /ɪkˌstɛmpəˈreɪniəs/

extemporaneous

Meaning
Spoken or done without preparation.
Example
He gave an extemporaneous speech at the meeting.
C2 noun /ɪˈbʊliəns/

ebullience

Meaning
the quality of being cheerful, enthusiastic, and full of energy
Example
The teacher's ebullience inspired her students.
C2 verb /ˈeksɪkreɪt/

execrate

Meaning
To feel or express great loathing or hatred for something.
Example
The community execrated the corrupt politician.
C2 verb /ɪnˈtwaɪn/

entwine

Meaning
to twist or wind together; to become closely connected or involved
Example
The vines entwine around the old fence.
C2 verb /ɛnˈfiːbəl/

enfeeble

Meaning
To make weak or feeble; to deprive of strength.
Example
The long illness enfeebled the old man.
C2 verb /ɪnˈsaɪfər/

encipher

Meaning
to convert a message into code or cipher
Example
The agent enciphered the secret message before sending it.
C2 verb /ɪnˈθroʊn/

enthrone

Meaning
to install someone on a throne or to give someone high status
Example
The king was enthroned in a grand ceremony.
C2 noun /ɪˈfjuːʒən/

effusion

Meaning
An unrestrained outpouring of words, feelings, or emotions.
Example
His letter was an effusion of love and longing.
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.
C2 noun /ɪˌdʒækjʊˈleɪʃən/

ejaculation

Meaning
The action of suddenly saying something or the release of semen during sexual climax.
Example
His sudden ejaculation of joy surprised everyone in the room.
C2 verb /ˌɛvəˈnɛs/

evanesce

Meaning
To disappear gradually; to fade away.
Example
The mist began to evanesce as the sun rose higher.
C2 noun /ɪˈlɪziəm/

elysium

Meaning
A place or state of perfect happiness; in Greek mythology, the afterlife paradise.
Example
For her, the garden was a personal elysium.
C2 noun /ˌɛfləˈrɛsəns/

efflorescence

Meaning
the process of flowering or reaching an optimal stage of development
Example
The garden was at the peak of its efflorescence in spring.
C2 verb /ɪsˈtʃuː/

eschew

Meaning
to deliberately avoid or abstain from something
Example
She chose to eschew junk food for a healthier diet.
C2 noun /ˌɛfəˈvɛsəns/

effervescence

Meaning
The release of gas bubbles; vivacity or high-spiritedness.
Example
Her effervescence made her the life of the party.
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.
C2 noun /ɪˌkliːziˈæstɪk/

ecclesiastic

Meaning
A member of the clergy or church official.
Example
The council was attended by several high-ranking ecclesiastics.
C2 adjective /ˈeksɪkrəbl/

execrable

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

epistolary

Meaning
Related to the writing of letters; expressed in or through letters.
Example
The novel is written in an epistolary style, consisting of letters between characters.
C2 verb /ɪkˈstruːd/

extrude

Meaning
to force something out through a small opening; to shape by pushing material through a mold
Example
The factory extrudes plastic pipes using modern machines.
C2 verb /ɪˈkwɪvəˌkeɪt/

equivocate

Meaning
To speak ambiguously or avoid giving a clear answer.
Example
The politician equivocated when asked about the scandal.
C2 verb /ɪnˈsnɛər/

ensnare

Meaning
to catch or trap, often by trickery or deceit
Example
The hunter ensnared the rabbit with a net.
C2 verb /ɪˈmæskjʊleɪt/

emasculate

Meaning
To make someone weaker or less effective; to deprive of strength or vigor.
Example
The constant criticism emasculated his confidence.
C2 adjective /ˈɪrˌsplɪtɪŋ/

earsplitting

Meaning
extremely loud or piercing sound
Example
The earsplitting noise of the fire alarm startled everyone.
C2 noun /ˈɛpɪɡræm/

epigram

Meaning
A short, witty saying or poem that expresses an idea in a clever way.
Example
Oscar Wilde was famous for his sharp epigrams.
C2 noun /eɪˈklɑː/

eclat

Meaning
Brilliant success, acclaim, or great public approval.
Example
The artist's debut performance was met with great éclat.
C2 noun /ˌɛksɪˈkreɪʃən/

execration

Meaning
An act of cursing or denouncing someone or something with hatred.
Example
The dictator’s name was spoken with execration after his fall.
C2 noun /ˌiː.kəʊ.tɒkˈsɪ.kə.lə.dʒi/

ecotoxicology

Meaning
The study of the effects of chemical pollution on the environment.
Example
Ecotoxicology studies the effects of pesticides on wildlife.
C2 verb /ɪˈfɛktʃueɪt/

effectuate

Meaning
to put into force or cause to happen; to bring about
Example
The manager effectuated the changes to improve efficiency.
C2 verb /ɛksˈproʊprieɪt/

expropriate

Meaning
To take property from its owner, especially by authority or for public use.
Example
The government decided to expropriate the land for a new highway.
C2 noun /ˈiːɡlət/

eaglet

Meaning
A young eagle.
Example
The eaglet waited in the nest for its mother to return.
C2 noun /ɛnˈkoʊmiəm/

encomium

Meaning
A speech or piece of writing that praises someone or something highly.
Example
He delivered an encomium to his retiring teacher.
C2 noun /ˈɪəri/

eyry

Meaning
an alternative spelling of eyrie; a nest of a bird of prey
Example
The falcon guarded its eyry fiercely.
C2 noun /ˈɛksplɪkeɪtər/

explicator

Meaning
a person who explains or interprets something in detail
Example
The critic served as an explicator of the poet’s complex works.
C2 verb /ɪˈvɜːrt/

evert

Meaning
To turn inside out or outward.
Example
The surgeon had to evert the eyelid during the procedure.
C2 adjective /ɪˈlɪʒən/

elysian

Meaning
Relating to or characteristic of paradise; delightful and heavenly.
Example
They spent an elysian week on the quiet island.
C2 adjective /ˌɛvɪˈdɛnʃəl/

evidential

Meaning
relating to or providing evidence
Example
The lawyer presented evidential support for her claims.
C2 noun /ˈɪəri/

eyrie

Meaning
the nest of a bird of prey, such as an eagle, typically built high on a cliff or tree
Example
The eagle’s eyrie was perched high on the mountain cliff.
C2 noun /ɪˌpɪstəˈmɒlədʒɪst/

epistemologist

Meaning
A scholar or expert who studies the nature, sources, and limits of knowledge.
Example
The epistemologist debated how humans can truly know anything with certainty.
C2 verb /ˈeksɔːrsaɪz/

exorcise

Meaning
To drive out an evil spirit or bad influence through rituals or prayers.
Example
The priest was called to exorcise the spirit from the house.
C2 verb /ɪˈmeɪʃieɪt/

emaciate

Meaning
To make abnormally thin or weak, usually because of illness or lack of food.
Example
The prisoners were emaciated after months without proper food.
C2 noun /ˈɛskwaɪər/

esquire

Meaning
A title of respect often used after a man's name, especially for lawyers in the United States.
Example
John Smith, Esquire, will be representing the client in court.
C2 verb /ɪkˈstɛmpəraɪz/

extemporize

Meaning
To speak or perform without preparation; improvise.
Example
The actor had to extemporize when he forgot his lines.
C2 noun /ˈɛksɪdʒənsi/

exigency

Meaning
an urgent need or demand requiring immediate attention
Example
In times of war, the exigency of the situation requires quick decisions.
C2 verb /ɪˈfeɪsɪŋ/

effacing

Meaning
erasing or making oneself inconspicuous; to remove or diminish in significance
Example
She kept effacing herself during the meeting so that others could shine.
C2 verb /ɪkˈspʌndʒ/

expunge

Meaning
To erase or remove completely, often something unwanted.
Example
He managed to expunge the embarrassing memory from his mind.
C2 noun /ˈɛlɪdʒi/

elegy

Meaning
A poem or song expressing sorrow, especially for someone who has died.
Example
The poet wrote an elegy for his late friend.
C2 noun /ˌɛksɪˈɡjuːɪti/

exiguity

Meaning
the quality of being scanty or meager in amount
Example
The exiguity of resources made the project difficult to complete.
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 /ˈɛkwɪpɔɪz/

equipoise

Meaning
A state of balance or equilibrium.
Example
Her calmness created an equipoise in the heated debate.
C2 noun /ˈel.ɪ.fənt ˈæp.əl/

Elephant Apple

Meaning
a tropical fruit with a hard shell and acidic flesh
Example
Elephant apple is used to make delicious jams and pickles.
C2 noun /ˈɛpɪtɑːf/

epitaph

Meaning
A short text written on a tombstone in memory of the deceased.
Example
The gravestone bore an epitaph honoring the soldier’s bravery.