equalize
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C1 verb /ˈiːkwəlaɪz/

equalize

igualar
Meaning
To make equal or level in status, value, or amount.
Example
The team equalized the score in the last minute.
El equipo igualó el marcador en el último minuto.
A1 adjective /eɪtθ/

eighth

octavo
Meaning
coming after the seventh position in a sequence; one of eight equal parts
Example
She finished in eighth place in the race.
Ella terminó en octavo lugar en la carrera.
B2 noun ɪkˈspænʃən

expansion

expansión
Meaning
The action of becoming larger or more extensive; growth or development.
Example
Volunteering helps in the expansion of social networks.
El voluntariado ayuda en la expansión de redes sociales.
B2 verb, adjective /ɪˈlæbəreɪt/ (verb), /ɪˈlæbərət/ (adjective)

elaborate

elaborar / detallado y complicado en diseño
Meaning
verb: to explain something in detail; adjective: detailed and complicated in design
Example
She asked him to elaborate on his proposal.
Ella le pidió que elaborara su propuesta.
C2 adjective /ɪˈfiːt/

effete

débiles
Meaning
Lacking vitality, strength, or effectiveness; weak and overrefined.
Example
The empire became effete after centuries of indulgence.
El imperio se volvió débil después de siglos de indulgencia.
C2 noun /ɪˌnʌn.siˈeɪ.ʃən/

enunciation

enunciación, pronunciación clara
Meaning
The act of saying or pronouncing words clearly and distinctly.
Example
His enunciation was clear during the presentation.
Su enunciación fue clara durante la presentación.
C2 verb /ɪkˈstɛnjueɪt/

extenuate

atenuar
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.
El abogado trató de atenuar las acciones de su cliente destacando su difícil infancia.
B2 adjective /ɪkˈstræv.ə.ɡənt/

Extravagant

extravagante
Meaning
spending much more than is necessary; wasteful; lacking restraint in spending
Example
His extravagant lifestyle included expensive cars and luxury vacations.
Su estilo de vida extravagante incluía autos caros y vacaciones de lujo.
B2 noun /ɪnˈθuziæst/

enthusiast

entusiasta
Meaning
a person who is very interested in a particular activity or subject
Example
He is a football enthusiast and watches every match.
Él es un entusiasta del fútbol y ve cada partido.
B2 noun ˈiː.kəʊˌsɪs.təm

ecosystem

ecosistema
Meaning
A biological community of interacting organisms and their physical environment.
Example
A balanced ecosystem is crucial for environmental sustainability.
Un ecosistema equilibrado es crucial para la sostenibilidad ambiental.
C2 verb /ˈek.stər.peɪt/

extirpate

extirpar
Meaning
to completely remove or destroy something unwanted
Example
The government launched a program to extirpate corruption from public offices.
El gobierno lanzó un programa para extirpar la corrupción de las oficinas públicas.
A2 adjective /ˌjʊərəˈpiːən/

european

europeo
Meaning
Relating to Europe or its people.
Example
She studied European history at university.
Estudió historia europea en la universidad.
B2 noun ˈiːkoʊˌtʊrɪzəm

Eco-tourism

eco-turismo
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.
El eco-turismo promueve viajes responsables a áreas naturales.
C1 adjective /ɪˈklɛktɪk/

eclectic

ecléctico
Meaning
Selecting or deriving ideas, styles, or tastes from a broad and diverse range of sources.
Example
Her taste in music is eclectic, ranging from classical to hip-hop.
Su gusto en música es ecléctico, que abarca desde la música clásica hasta el hip-hop.
C2 verb /ɪˈdjuːs/

educe

extraer
Meaning
To draw out or bring forth something latent or hidden.
Example
The teacher tried to educe a response from the shy student.
El maestro intentó inducir una respuesta del estudiante tímido.
C1 noun /ɪˈnɪɡ.mə/

enigma

enigma
Meaning
A person or thing that is mysterious, puzzling, or difficult to understand.
Example
Life remains an enigma to many.
La vida sigue siendo un enigma para muchos.
B2 adjective /ɪˈlɛktərəl/

electoral

electoral
Meaning
related to elections or voting
Example
The electoral process in the country has been reformed in recent years.
El proceso electoral en el país ha sido reformado en los últimos años.
C1 noun /ɪˈnæməl/

enamel

esmalte
Meaning
a hard, glossy substance used as a protective or decorative coating; the hard outer layer of teeth
Example
The dentist explained that enamel protects the teeth from decay.
El dentista explicó que el esmalte protege los dientes de la caries.
C2 adjective /ˌɛvəˈnɛsənt/

evanescent

efímero
Meaning
Quickly fading or disappearing; lasting for only a very short time.
Example
The beauty of the sunset was evanescent, fading within minutes.
La belleza del atardecer fue efímera, desvaneciéndose en minutos.
A1 noun /aɪ/

Eye

ojo; vista
Meaning
the organ of sight; the ability to see
Example
Her eyes sparkled with joy.
Sus ojos brillaban de alegría.
B1 verb /ɪkˈstend/

extend

extender
Meaning
to make longer or larger; to stretch out; to offer or give
Example
The company decided to extend the deadline for the project.
La empresa decidió extender la fecha límite para el proyecto.
C1 verb /ɪnˈsɜːrkəl/

encircle

rodear
Meaning
to form a circle around something
Example
The protesters encircled the building in a human chain.
Los manifestantes rodearon el edificio en una cadena humana.
B2 adjective /ɪˈven.tʃu.əl/

Eventual

final
Meaning
happening or existing at the end of a process; final; ultimate
Example
The eventual outcome was better than expected.
El resultado final fue mejor de lo esperado.
B2 verb /ɪɡˈzɜrt/

exert

ejercer
Meaning
to apply or bring to bear; to use physical or mental effort
Example
He exerted all his strength to lift the heavy box.
Él ejerció toda su fuerza para levantar la caja pesada.
C1 adjective /ɪɡˈzɪləreɪtɪd/

exhilarated

exaltado
Meaning
feeling very happy, animated, or elated
Example
She felt exhilarated after finishing the marathon.
Ella se sintió exaltada después de terminar el maratón.
B1 adjective /ɪmˈbær.ə.sɪŋ/

Embarrassing

vergonzoso; incómodo; humillante
Meaning
causing shame or awkwardness; uncomfortable; humiliating
Example
It was embarrassing when I forgot her name.
Fue embarazoso cuando olvidé su nombre.
C1 noun /ˈen.mə.ti/

Enmity

enemistad
Meaning
a state or feeling of active opposition or hostility
Example
The enmity between the two families lasted for generations.
La enemistad entre las dos familias duró generaciones.
C1 verb ɪˈluːd

elude

eludir
Meaning
Evade or escape from, typically in a skillful or cunning way; avoid being caught.
Example
The thief managed to elude the police.
El ladrón logró eludir a la policía.
B1 adjective /ˈel.ɪ.ɡənt/

Elegant

elegante
Meaning
graceful and stylish; refined; sophisticated
Example
She wore an elegant dress to the party.
Ella llevó un vestido elegante a la fiesta.
C1 noun /ˈɛstjʊəri/

estuary

estuario
Meaning
the tidal mouth of a large river, where the tide meets the stream
Example
The city is located near the estuary of the river.
La ciudad está ubicada cerca del estuario del río.
C1 verb /ɪˈspaʊz/

espouse

apoyar
Meaning
To adopt or support a cause, belief, or way of life.
Example
She espoused the philosophy of nonviolence throughout her career.
Ella apoyó la filosofía de la no violencia a lo largo de su carrera.
C2 noun /ɪˈbʊliəns/

ebullience

exuberancia
Meaning
the quality of being cheerful, enthusiastic, and full of energy
Example
The teacher's ebullience inspired her students.
El entusiasmo de la profesora inspiró a sus estudiantes.
C2 verb /ɪnˈkæmp/

encamp

acampar
Meaning
to set up or establish a camp
Example
The soldiers encamped near the river for the night.
Los soldados acamparon cerca del río durante la noche.
C2 noun /ˌɛləˈkjuːʃn/

elocution

elocuencia
Meaning
The skill of clear and expressive speech, especially in public speaking.
Example
She improved her elocution through constant practice.
Ella mejoró su elocuencia mediante la práctica constante.
C1 adjective /ˌɛpɪˈsɒdɪk/

episodic

episódico
Meaning
Happening occasionally or in separate parts; related to episodes.
Example
Her interest in art was episodic, coming and going over the years.
Su interés por el arte era episódico, viniendo y yendo a lo largo de los años.
C1 adjective /ɪkˈskjuːzəbl/

excusable

excusable
Meaning
Able to be forgiven or justified.
Example
Her mistake was excusable given the circumstances.
Su error era excusable dadas las circunstancias.
B2 adjective ˈel.ɪ.dʒə.bəl

eligible

elegible
Meaning
Having the right to do or obtain something through satisfaction of the appropriate conditions.
Example
Only eligible candidates are considered for appointments.
Solo los candidatos elegibles son considerados para los nombramientos.
C2 noun /ˈɛksplətɪv/

expletive

palabra ofensiva
Meaning
a word or phrase used as an exclamation, often offensive or profane
Example
He shouted an expletive when he dropped the hammer on his foot.
Él gritó una palabra ofensiva cuando dejó caer el martillo sobre su pie.
A2 noun /ˈɛləˌveɪtər/

elevator

ascensor
Meaning
a machine that carries people or goods up and down between floors in a building
Example
We took the elevator to the tenth floor.
Tomamos el ascensor hasta el décimo piso.
B2 verb /ɪnˈlɑːrdʒ/

enlarge

agrandar
Meaning
to make something bigger or increase in size
Example
They decided to enlarge their house.
Ellos decidieron agrandar su casa.
C2 verb /ɪˈkwɪvəˌkeɪt/

equivocate

hablar ambiguamente
Meaning
To speak ambiguously or avoid giving a clear answer.
Example
The politician equivocated when asked about the scandal.
El político equivocó cuando le preguntaron sobre el escándalo.
B1 noun /ɪˌlɛkˈtrɒnɪks/

electronics

electrónica
Meaning
the branch of physics and technology dealing with circuits and devices using transistors, microchips, and other components
Example
He studied electronics at university.
Estudió electrónica en la universidad.
C2 verb /ɪkˈspɛktəreɪt/

expectorate

expectorar
Meaning
to cough up and spit out mucus from the throat or lungs
Example
The patient began to expectorate thick mucus.
El paciente comenzó a expectorar mucosidad espesa.
B2 verb /ɪmˈpaʊər/

empower

empoderar
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.
La educación puede empoderar a las personas para mejorar sus vidas.
B1 noun /ɪnˈdʒɔɪmənt/

enjoyment

disfrute
Meaning
the state or process of taking pleasure or satisfaction in something
Example
She felt great enjoyment while reading her favorite book.
Ella sintió un gran disfrute mientras leía su libro favorito.
B1 noun /ˈɛldər/

elder

anciano
Meaning
a person who is older or has higher rank; an older person in a family or community
Example
We should always respect our elders.
Siempre debemos respetar a nuestros mayores.
C1 noun /ˈjuː.fə.mɪ.zəm/

euphemism

un término suave o indirecto sustituido por uno considerado demasiado directo o áspero
Meaning
A mild or indirect term substituted for one considered too harsh or direct; polite expression for something unpleasant.
Example
The phrase "passed away" is a euphemism for "died".
La frase 'pasado lejos' es un eufemismo para 'muerto'.
C1 adjective /ˈɜːr.θən/

Earthen

hecho de tierra o arcilla; relacionado con la cerámica
Meaning
made of earth or clay; relating to pottery or ceramic materials
Example
The kitchen had beautiful earthen pots for storage.
La cocina tenía hermosas ollas de barro para almacenamiento.
B2 noun /ˈɪə.rə/

Era

era
Meaning
a long and distinct period of history with a particular feature or characteristic
Example
The Renaissance was an era of great artistic and cultural achievement.
El Renacimiento fue una era de gran logro artístico y cultural.
B2 noun /ˈek.oʊ/

Echo

eco; reverberación
Meaning
a sound that is reflected back; a repetition or imitation
Example
His voice created a clear echo in the empty cathedral.
Su voz creó un eco claro en la catedral vacía.
B2 adjective /ˌiːkəˈnɒmɪkl/

economical

económico
Meaning
Careful in the use of resources; providing good value or efficiency.
Example
Driving a hybrid car is economical in the long run.
Conducir un coche híbrido es económico a largo plazo.
C1 adjective /ˈɛm.ɪ.nənt/

eminent

eminente
Meaning
Famous and respected within a particular sphere or profession.
Example
He is an eminent scientist known for groundbreaking research.
Él es un científico eminente conocido por su investigación innovadora.
C1 adjective ɪkˈskwɪzɪt

exquisite

exquisito
Meaning
Extremely beautiful and delicate.
Example
The exquisite craftsmanship of the watch made it a collector's item.
La exquisita habilidad artesanal del reloj lo convirtió en un artículo de coleccionista.
C2 verb /ɪˈnæmər/

enamor

enamorar
Meaning
to be filled with love or admiration for
Example
She was enamored with the beautiful scenery.
Ella estaba enamorada con el hermoso paisaje.
C2 noun /ˈɛnsaɪn/

ensign

bandera
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.
El barco izó su bandera nacional antes de salir del puerto.
C1 verb /ɪkˈskriːt/

excrete

excretar
Meaning
to eliminate waste matter from the body
Example
Humans excrete carbon dioxide through breathing.
Los humanos excretan dióxido de carbono a través de la respiración.
C1 noun /ˈek.stə.si/

Ecstasy

éxtasis
Meaning
an overwhelming feeling of great happiness or joyful excitement
Example
She was in complete ecstasy when she heard the good news.
Ella estaba en completa éxtasis cuando escuchó las buenas noticias.
C2 adjective /ɪˈbʊliənt/

ebullient

exuberante
Meaning
cheerful and full of energy
Example
She was ebullient after receiving the good news.
Ella estaba exuberante después de recibir la buena noticia.
B1 adverb /ɪkˈstriːm.li/

Extremely

extremadamente
Meaning
to a very high degree; exceptionally
Example
The weather today is extremely hot and humid.
El clima hoy está extremadamente caluroso y húmedo.
C2 verb /ˈɛdɪfaɪ/

edify

edificar
Meaning
To instruct or improve someone morally or intellectually.
Example
Good books can both entertain and edify the reader.
Los buenos libros pueden entretener y edificar al lector.
C1 verb /ˈɛkskəˌveɪt/

excavate

felicidad
Meaning
to dig out or remove earth carefully, often for building or archaeological purposes
Example
The workers excavated the site to prepare for construction.
No pudo esconder su felicidad cuando recibió el premio.
A2 adjective ˈiːkwəl

equal

igual
Meaning
Being the same in quantity, size, degree, or value; having the same status or treatment.
Example
Bose was regarded as Galileo's equal.
Bose fue considerado como el igual de Galileo.
A2 noun /ɪˌlɛkˈtrɪsɪti/

electricity

electricidad
Meaning
A form of energy resulting from the existence of charged particles.
Example
The storm caused a power cut and we had no electricity.
La tormenta causó un corte de energía y no teníamos electricidad.
B1 noun /ˈev.ɪ.dəns/

Evidence

evidencia
Meaning
the available body of facts or information indicating whether a belief or proposition is true
Example
The detective found crucial evidence that solved the mysterious case.
El detective encontró evidencia crucial que resolvió el caso misterioso.
C1 adjective /ɪkˈstætɪk/

ecstatic

extático
Meaning
Feeling or expressing overwhelming happiness or excitement.
Example
The fans were ecstatic after their team won the championship.
Los fanáticos estaban extáticos después de que su equipo ganó el campeonato.
C1 noun /ˈiːdɪkt/

edict

edicto
Meaning
An official order, proclamation, or decree issued by an authority.
Example
The king issued an edict banning smoking in public places.
El rey emitió un edicto prohibiendo fumar en lugares públicos.
C2 noun /ɛnˈsɪklɪkəl/

encyclical

Carta encíclica
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.
El Papa emitió una carta encíclica sobre el cambio climático y la responsabilidad moral.
B2 noun /ˈɛmɪɡrənt/

emigrant

emigrante
Meaning
A person who leaves their own country to settle permanently in another.
Example
The emigrant started a new life in Canada.
El emigrante comenzó una nueva vida en Canadá.
B2 noun /ɪɡˌzædʒ.əˈreɪ.ʃən/

Exaggeration

exageración
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.
Su historia sobre el pez que atrapó era claramente una exageración.
C2 verb /ɪˈfeɪs/

efface

borrar
Meaning
To erase or wipe out something; to make oneself inconspicuous.
Example
Time had effaced the letters on the old gravestone.
El tiempo había borrado las letras en la antigua tumba.
A2 noun /ɪˈkɒn.ə.mi/

economy

economía
Meaning
The wealth and resources of a country or region.
Example
A stable economy is essential for national growth.
Una economía estable es esencial para el crecimiento nacional.
B2 adjective /ɪˈkwɪv.ə.lənt/

Equivalent

equivalente; igual
Meaning
equal in value, amount, function, or meaning; having the same effect or result
Example
This amount is equivalent to ten dollars.
Esta cantidad es equivalente a diez dólares.
B1 noun ɪˈkɒnəmiːz

economies

economías
Meaning
The wealth and resources of a country or region.
Example
Emerging economies have been growing rapidly over the past decade.
Las economías emergentes han estado creciendo rápidamente en la última década.
C2 noun /ˌiː.kəʊ.tɒkˈsɪ.kə.lə.dʒi/

ecotoxicology

ecotoxicología
Meaning
The study of the effects of chemical pollution on the environment.
Example
Ecotoxicology studies the effects of pesticides on wildlife.
La ecotoxicología estudia los efectos de los pesticidas en la vida silvestre.
B1 adverb /ˈɛlswɛr/

elsewhere

en otro lugar
Meaning
In, at, or to some other place.
Example
If you can’t find it here, try looking elsewhere.
Si no puedes encontrarlo aquí, prueba buscando en otro lugar.
B2 adjective /ˈɛv.ə.ɡriːn/

evergreen

siempreverde
Meaning
Remaining green and functional throughout the year; not shedding leaves seasonally.
Example
Evergreen trees like pine and fir stay green year-round.
Los árboles siempreverdes como el pino y el abeto permanecen verdes durante todo el año.
C2 verb /ˈɛnərˌveɪt/

enervate

debilitar
Meaning
To weaken or drain someone of strength or vitality.
Example
The long hours of work enervated him.
Las largas horas de trabajo lo debilitaron.
C1 noun /ˈɒntʊrɑːʒ/

entourage

séquito
Meaning
A group of people attending or surrounding an important person.
Example
The celebrity arrived with her entourage of assistants and bodyguards.
La celebridad llegó con su séquito de asistentes y guardaespaldas.
C1 noun /ɪˈlɛk.trəʊ.laɪts/

electrolytes

electrolitos
Meaning
Minerals in body fluids that carry an electric charge and are essential for many bodily functions.
Example
Electrolytes help maintain proper fluid balance in the body.
Los electrolitos ayudan a mantener el equilibrio adecuado de líquidos en el cuerpo.
C1 noun /ɪˈpɪt.ə.mi/

epitome

un ejemplo perfecto de una calidad o tipo particular; la mejor representación de algo
Meaning
A perfect example of a particular quality or type; the best representation of something.
Example
She is the epitome of grace and kindness.
Ella es el epítome de la gracia y la amabilidad.
B2 noun /iˈkɒl.ə.dʒi/

ecology

ecología
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.
La ecología nos ayuda a entender cómo la contaminación afecta a los animales y las plantas.
A2 adjective /ɪmˈbærəst/

embarrassed

avergonzado
Meaning
feeling awkward, ashamed, or self-conscious about something
Example
He felt embarrassed when he forgot her name.
Se sintió avergonzado cuando olvidó su nombre.
C2 adjective /ˌɛf.ɪˈkeɪ.ʃəs/

efficacious

eficaz
Meaning
Successful in producing a desired or intended result; effective.
Example
The vaccine proved highly efficacious in preventing infections.
La vacuna demostró ser altamente eficaz para prevenir infecciones.
C1 noun /ɪˈvændʒəlɪst/

evangelist

evangelista
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.
El evangelista viajó por todo el país difundiendo su mensaje.
C1 verb /ɪmˈboʊl.dən/

embolden

empujar
Meaning
To give someone the courage or confidence to do something.
Example
The coach's words emboldened the team to play aggressively.
Las palabras del entrenador empujaron al equipo a jugar de manera agresiva.
C1 verb /ɪˈnʌnsieɪt/

enunciate

enunciar
Meaning
to pronounce words clearly; to express an idea clearly
Example
The teacher asked him to enunciate each word.
El maestro le pidió que enunciara cada palabra.
C1 noun /ɪɡˈzɛkjətər/

executor

ejecutor de testamento
Meaning
A person appointed to carry out the terms of someone's will after their death.
Example
The executor managed the estate according to the deceased’s wishes.
El ejecutor gestionó la propiedad según los deseos del fallecido.
C1 adjective /ˌɛɡzɪˈstɛnʃəl/

existential

existencial
Meaning
Relating to human existence, often concerning meaning or purpose of life.
Example
She went through an existential crisis during her midlife.
Pasó por una crisis existencial durante su mediana edad.
C1 adjective /ˈed.jʊ.keɪ.tɪv/

Educative

educativo; instructivo; informativo
Meaning
providing education; instructive; informative
Example
The documentary was highly educative and informative.
El documental fue muy educativo e informativo.
B1 adverb /ɪˈfɛktɪvli/

effectively

efectivamente
Meaning
in a way that produces the desired result; efficiently and successfully
Example
The team worked together effectively to finish the project on time.
El equipo trabajó juntos efectivamente para terminar el proyecto a tiempo.
C1 verb /ɪɡˈzɒnəreɪt/

exonerate

exonerar
Meaning
To clear someone from blame or accusation.
Example
The court exonerated her from all charges.
El tribunal la exoneró de todos los cargos.
C2 noun /ɪksˈtʃɛkər/

exchequer

tesorería
Meaning
The treasury of a state or country.
Example
The government announced new measures to improve the exchequer.
El gobierno anunció nuevas medidas para mejorar la tesorería.
C1 adjective /ɪˈspeʃəl/

especial

especial
Meaning
Particularly remarkable or significant; distinguished from others
Example
This is an especial opportunity you should not miss.
Esta es una oportunidad especial que no debes perder.
A2 adverb /ˈiːkwəli/

equally

igualmente
Meaning
in an equal or fair way; to the same degree
Example
The prize money was equally divided among the winners.
El dinero del premio se dividió igualmente entre los ganadores.
C2 noun ˈɛn.ɡræm

Engram

Señales físicas en el cerebro para el almacenamiento y recuperación de recuerdos
Meaning
Physical signs or patterns in the brain for memory storage and retrieval
Example
Scientists study engrams to understand how memories are stored.
Los científicos estudian los engramas para comprender cómo se almacenan los recuerdos.
C2 noun /ɛmˈpɔːriəm/

emporium

gran tienda
Meaning
A large retail store selling a wide variety of goods.
Example
They visited the new emporium to buy furniture and home decor.
Visitaron el nuevo empórium para comprar muebles y decoración para el hogar.
C1 adjective /ˈɜːrθi/

earthy

terroso / simple
Meaning
resembling or suggestive of earth or soil; simple, natural, and sometimes coarse
Example
The dish had a rich, earthy flavor from the mushrooms.
El plato tenía un sabor rico y terroso proveniente de los champiñones.
B1 noun ˌen.dʒɪˈnɪə.rɪŋ

engineering

ingeniería
Meaning
The application of scientific and mathematical principles to design, build, and maintain structures, machines, or systems.
Example
Genetic engineering transforms agricultural practices.
La ingeniería genética transforma las prácticas agrícolas.
B2 adverb /ɪˈsɛnʃəli/

essentially

esencialmente
Meaning
Used to emphasize the basic or fundamental nature of something.
Example
The two plans are essentially the same.
Los dos planes son esencialmente lo mismo.
C1 noun /iːl/

Eel

anguila
Meaning
a long, snake-like fish that lives in both fresh and salt water
Example
The electric eel can generate powerful electric shocks.
La anguila eléctrica puede generar potentes descargas eléctricas.
C2 verb /ɛnˈfiːbəl/

enfeeble

debilitar
Meaning
To make weak or feeble; to deprive of strength.
Example
The long illness enfeebled the old man.
La larga enfermedad debilitó al anciano.
B2 noun /ˈet.ɪ.kət/

Etiquette

etiqueta
Meaning
the customary code of polite behavior in society or among members of a particular profession
Example
Proper etiquette requires standing when a lady enters the room.
La etiqueta adecuada requiere ponerse de pie cuando una dama entra en la habitación.
B2 verb /ɪˈrʌpt/

erupt

erupcionar
Meaning
to burst forth suddenly and violently
Example
The volcano erupted after centuries of dormancy.
El volcán erupcionó después de siglos de inactividad.
C1 adjective /ˈen.vi.əs/

Envious

envidioso/a; celoso/a
Meaning
feeling or showing envy; jealous
Example
She felt envious of her friend's new car.
Ella se sintió envidiosa del nuevo coche de su amiga.
B1 noun ˈem.fə.sɪs

emphasis

énfasis
Meaning
Special importance, value, or prominence given to something; stress laid on a particular point or aspect.
Example
The speaker placed emphasis on sustainable development.
El orador dio énfasis al desarrollo sostenible.
C2 noun /ɪˈpɪsəl/

epistle

epístola
Meaning
A letter, especially a formal or didactic one; often used for letters in the New Testament.
Example
He wrote a long epistle to his friend about his travels.
Escribió una larga epístola a su amigo sobre sus viajes.
B1 noun /ˈiː.tɪŋ ˈhæb.ɪts/

eating habits

hábitos alimenticios
Meaning
A person's usual pattern and preferences in food consumption.
Example
Developing good eating habits leads to better health.
Desarrollar buenos hábitos alimenticios conduce a una mejor salud.
C1 adjective /ɪnˈɡreɪnd/

engrained

firmemente establecido, difícil de cambiar
Meaning
Firmly fixed or established; difficult to change.
Example
Cultural practices are often deeply engrained in the fabric of society.
Las prácticas culturales a menudo están profundamente arraigadas en el tejido de la sociedad.
C1 noun /ɪkˈstrækʃən/

extraction

extracción
Meaning
the act of removing something, especially by pulling it out
Example
The extraction of oil from the ground requires special equipment.
La extracción de petróleo del suelo requiere equipos especiales.
C2 adjective /ˌɛsəˈtɛrɪk/

esoteric

esotérico
Meaning
intended for or understood by only a small number of people with special knowledge
Example
The professor gave an esoteric lecture on ancient philosophy.
El profesor dio una conferencia esotérica sobre filosofía antigua.
C1 noun ˈiːkəʊˌsɪstəm ˈsɜːvɪsɪz

ecosystem services

servicios ecosistémicos
Meaning
The benefits people obtain from ecosystems.
Example
Forests provide valuable ecosystem services, such as purifying air and water.
Los bosques proporcionan valiosos servicios ecosistémicos, como la purificación del aire y el agua.
C2 adjective /ˌɛl.ɪˈmɑː.səˌnɛr.i/

eleemosynary

caritativo
Meaning
Relating to charity; dependent on or supported by charity.
Example
The hospital was founded as an eleemosynary institution.
El hospital fue fundado como una institución caritativa.
C2 verb /ˈeksɔːrsaɪz/

exorcise

exorcizar
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.
Se llamó al sacerdote para exorcizar el espíritu de la casa.
C1 noun ˌɛkstərˈnælɪtiz

externalities

externalidad
Meaning
A side effect or consequence of an industrial or commercial activity.
Example
Pollution is a negative externality of industrialization.
La contaminación es una externalidad negativa de la industrialización.
C1 noun /ˈɑːnkɔːr/

encore

bis de actuación
Meaning
An additional performance demanded by an audience at the end of a show.
Example
The band returned to the stage for an encore.
La banda regresó al escenario para un bis.
C2 noun /ˈɛndaɪv/ or /ˈɑːndɪv/

endive

endivia
Meaning
A leafy vegetable belonging to the chicory family, often used in salads.
Example
She added fresh endive to the salad for a slightly bitter flavor.
Añadió endivia fresca a la ensalada para darle un sabor ligeramente amargo.
C1 verb ˈɛk.spɪ.daɪt

expedite

acelerar
Meaning
Make an action or process happen sooner or be accomplished more quickly.
Example
The government took steps to expedite the approval process.
El gobierno tomó medidas para acelerar el proceso de aprobación.
C2 noun /ˌɛpɪˈsaɪklɔɪd/

epicycloid

epicicloide
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.
El matemático demostró cómo dibujar un epicicloide.
C1 verb /ɪnˈtʃænt/

enchant

encantar
Meaning
to delight or charm greatly; to cast a spell over
Example
The storyteller enchanted the children with his tales.
El cuentacuentos encantó a los niños con sus relatos.
C1 noun /ɪmˈbɛzlmənt/

embezzlement

malversación
Meaning
The act of dishonestly taking money or property entrusted to one's care.
Example
The accountant was arrested for embezzlement of company funds.
El contador fue arrestado por la malversación de fondos de la empresa.
C1 adverb ɪkˌsperɪˈmentəli

experimentally

experimentalmente
Meaning
In a way that is based on or derived from experiment and observation rather than theory.
Example
Bose demonstrated findings experimentally.
Bose demostró los hallazgos experimentalmente.