endure
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B2 verb /ɪnˈdjʊər/

endure

soportar
Meaning
to suffer something difficult or unpleasant patiently
Example
He had to endure years of hardship before achieving success.
Tuvo que soportar años de dificultades antes de alcanzar el éxito.
A2 noun /ɪˈfekt/

Effect

efecto; resultado; consecuencia
Meaning
a change that is a result or consequence of an action or other cause
Example
The new medicine had a positive effect on the patient's recovery.
La nueva medicina tuvo un efecto positivo en la recuperación del paciente.
A2 noun /ˈef.ət/

Effort

esfuerzo
Meaning
physical or mental activity needed to achieve something
Example
She put a lot of effort into preparing for the final examination.
Ella puso mucho esfuerzo en preparar el examen final.
B2 verb /ɪmˈbɑːrk/

embark

embarcar
Meaning
to begin a journey, project, or activity
Example
She decided to embark on a new career in medicine.
Ella decidió embarcarse en una nueva carrera en medicina.
C1 verb /ˈɪə.mɑːrk/

earmark

destinar
Meaning
To designate funds, resources, or time for a particular purpose.
Example
The government has earmarked funds for education.
El gobierno ha destinado fondos para la educación.
C2 verb /ɪnˈtriːt/

entreat

rogar
Meaning
To ask earnestly or beg someone to do something.
Example
She entreated him to stay a little longer.
Ella le rogó que se quedara un poco más.
B2 verb /ɪˈnækt/

enact

promulgar
Meaning
to make into law; to perform or act out
Example
The government decided to enact a new policy on education.
El gobierno decidió promulgar una nueva política sobre educación.
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.
B1 adjective ɪˈməʊʃənl

emotional

emocional
Meaning
Having feelings that are easily excited and openly displayed.
Example
Visiting the burial site made him emotional.
Visitar el sitio de entierro lo hizo emocional.
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.
B2 noun ˌel.ɪ.dʒəˈbɪl.ə.ti

eligibility

eligibilidad
Meaning
The state of having the right to do or obtain something through satisfaction of the appropriate conditions.
Example
Eligibility criteria maintain fairness.
Los criterios de elegibilidad mantienen la equidad.
C2 noun /ˈɛpɪˌsaɪkl/

epicycle

círculo epícyclico
Meaning
a small circle whose center moves around the circumference of a larger one, used in ancient astronomy
Example
The concept of the epicycle was used to explain planetary motion.
El concepto del epiciclo se utilizó para explicar el movimiento planetario.
C2 adjective /juːˈdʒɛnɪk/

eugenic

eugenésico
Meaning
Relating to or aiming at improving the genetic quality of a population.
Example
In the early 20th century, some scientists supported eugenic policies.
A principios del siglo XX, algunos científicos apoyaron las políticas eugenésicas.
B2 noun /ˈaɪ.bɔːl/

Eyeball

globo ocular
Meaning
the round part of the eye within the eyelids and socket
Example
The doctor examined his eyeball carefully.
El doctor examinó su globo ocular cuidadosamente.
C1 verb /ɪɡˈzuːd/

exude

exudar
Meaning
to display a quality strongly and openly; to release a liquid or smell slowly
Example
He exudes confidence whenever he speaks in public.
Él exuda confianza cada vez que habla en público.
C2 verb /ɪnˈθroʊn/

enthrone

entronizar
Meaning
to install someone on a throne or to give someone high status
Example
The king was enthroned in a grand ceremony.
El rey fue entronizado en una gran ceremonia.
B2 noun /ˌɛkskləˈmeɪʃən/

exclamation

exclamación
Meaning
A sudden cry or remark expressing strong emotion or surprise.
Example
She let out an exclamation of joy when she heard the news.
Ella soltó una exclamación de alegría cuando escuchó las noticias.
C1 noun ɪɡˌzæs.pəˈreɪ.ʃən

exasperation

exasperacion
Meaning
Extreme irritation or frustration.
Example
He sighed in exasperation after hearing the same excuse again.
Él suspiró de exasperación después de oír la misma excusa otra vez.
C2 noun /ˈɛpɪɡræm/

epigram

epigrama
Meaning
A short, witty saying or poem that expresses an idea in a clever way.
Example
Oscar Wilde was famous for his sharp epigrams.
Oscar Wilde fue famoso por sus agudos epigramas.
C2 noun /ˈɪəri/

eyrie

nido de águila
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.
El nido de águila estaba ubicado en la cima de un acantilado de montaña.
C2 noun /ɪˈmɛtɪk/

emetic

emético
Meaning
a substance that causes vomiting
Example
The doctor administered an emetic to remove the poison.
El doctor administró un emético para eliminar el veneno.
C2 noun /ˈiːən/

eon

era
Meaning
an indefinitely long period of time; an age
Example
Dinosaurs lived millions of years ago, in a different eon.
Los dinosaurios vivieron hace millones de años, en una era diferente.
B2 verb /ɪˈreɪs/

erase

borrar
Meaning
to remove completely; to delete or wipe out
Example
Use an eraser to erase the pencil marks.
Usa un borrador para borrar las marcas de lápiz.
B1 noun /ɪˈkɒnəmɪst/

economist

economista
Meaning
A person who studies or is an expert in economics.
Example
The economist predicted a rise in inflation.
El economista predijo un aumento en la inflación.
C2 noun ˌɛr.jʊˈdɪʃ.ən

erudition

erudición
Meaning
The quality of having or showing great knowledge or learning; scholarship.
Example
His erudition in history impressed the entire audience.
Su erudición en historia impresionó a toda la audiencia.
C2 noun /ɪˌkwɪvəˈkeɪʃən/

equivocation

uso de lenguaje ambiguo
Meaning
The use of ambiguous language to conceal the truth or to avoid committing oneself.
Example
The politician’s equivocation frustrated voters who wanted a clear answer.
La equivocación del político frustró a los votantes que querían una respuesta clara.
B2 noun /ɪˈliːt/ or /eɪˈliːt/

elite

élite
Meaning
A select group that is superior in terms of ability or qualities.
Example
Only the elite were invited to the exclusive event.
Solo la élite fue invitada al evento exclusivo.
C2 noun /ɪˈluːʒən/

elusion

elusión
Meaning
The act of escaping or avoiding something, especially by cleverness or trickery.
Example
His constant elusion of responsibility frustrated his colleagues.
Su constante elusión de responsabilidad frustró a sus colegas.
C1 verb /ɪkˈstræpəleɪtɪŋ/

extrapolating

extrapolar
Meaning
Extend the application of (a method or conclusion) to an unknown situation by assuming that existing trends will continue.
Example
Extrapolating from the current data, we can estimate the trends for next year.
Extrapolando con los datos actuales, podemos estimar las tendencias para el próximo año.
B1 adjective ɪˈfɪʃ.ənt

efficient

eficiente
Meaning
Working in a well-organized way; competent and effective in performance.
Example
Efficient farming methods improve yields.
Los métodos agrícolas eficientes mejoran los rendimientos.
B2 noun /ˌɒn.trə.prəˈnɜːr/

Entrepreneur

persona que organiza y opera un negocio o negocios
Meaning
a person who organizes and operates a business or businesses
Example
The young entrepreneur started her own tech company at age 22.
La joven emprendedora comenzó su propia empresa tecnológica a los 22 años.
B2 verb /ɪkˈsɛl/

excel

sobresalir
Meaning
to be exceptionally good at or proficient in an activity or subject
Example
She always tries to excel in her studies.
Ella siempre trata de sobresalir en sus estudios.
B2 noun ˈikoʊ ˈfrɛndli tɛkˈnɑləʤiz

eco-friendly technologies

tecnologías ecológicas
Meaning
Technologies that are designed to minimize environmental impact and promote sustainability.
Example
Eco-friendly technologies can mitigate pollution.
Las tecnologías ecológicas pueden mitigar la contaminación.
B2 adjective /ɪɡˈzɔː.stɪd/

exhausted

agotado
Meaning
Extremely tired; having no energy left.
Example
Feeling exhausted after waking up is common.
Sentirse agotado después de despertarse es común.
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.
C2 noun /ˈɛskwaɪər/

esquire

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.
John Smith, Esquire, representará al cliente en la corte.
B2 verb /ɪkˈspɛl/

expel

expulsar
Meaning
to officially force someone to leave a place or organization
Example
The student was expelled from school for misconduct.
El estudiante fue expulsado de la escuela por mala conducta.
A2 noun /ɪksˈtʃeɪndʒ/

Exchange

intercambio
Meaning
an act of giving one thing and receiving another in return
Example
The exchange of gifts is a common tradition during the holidays.
El intercambio de regalos es una tradición común durante las fiestas.
C1 adverb ˌekspəˈnenʃəli

exponentially

exponencialmente
Meaning
At a rapidly increasing rate; growing or expanding very quickly and intensely.
Example
Internet adoption is growing exponentially worldwide.
La adopción de Internet está creciendo exponencialmente en todo el mundo.
C2 adjective /ɪˈlɪʒən/

elysian

celestial
Meaning
Relating to or characteristic of paradise; delightful and heavenly.
Example
They spent an elysian week on the quiet island.
Pasaron una semana celestial en la isla tranquila.
B2 noun /ˌekspləˈreɪʃən/

exploration

exploración
Meaning
the action of traveling through or studying an area to learn more about it
Example
Space exploration has expanded our understanding of the universe.
La exploración espacial ha ampliado nuestra comprensión del universo.
C1 noun ˌiː.kəʊˈfrend.li ˌɜː.bən.aɪˈzeɪ.ʃən

eco-friendly urbanization

urbanización ecológica
Meaning
The development of cities in a way that is not harmful to the environment.
Example
Eco-friendly urbanization reduces environmental degradation.
La urbanización ecológica reduce la degradación ambiental.
C1 noun /ˌiː.kəˈnɒm.ɪk dɪˈspær.ɪ.ti/

Economic Disparity

disparidad económica
Meaning
The unequal distribution of income and opportunity between different groups in society.
Example
Addressing economic disparity is crucial for social stability.
Abordar la disparidad económica es crucial para la estabilidad social.
B1 noun /ɪnˈθjuː.zi.æz.əm/

Enthusiasm

entusiasmo; fervor; ardor
Meaning
intense and eager enjoyment, interest, or approval
Example
Her enthusiasm for the project inspired the entire team.
Su entusiasmo por el proyecto inspiró a todo el equipo.
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.
C2 noun /ˌɛmjʊˈleɪ.ʃən/

emulation

emulación
Meaning
Reproducing something or following someone to achieve success.
Example
The software allows the emulation of old video games on modern devices.
El software permite la emulación de juegos antiguos en dispositivos modernos.
A2 noun ˈen.ə.dʒi

energy

energía
Meaning
Power derived from the utilization of physical or chemical resources, especially to provide light and heat or to work machines.
Example
Clean energy sources help reduce pollution.
Las fuentes de energía limpia ayudan a reducir la contaminación.
B1 verb /ɪkˈspɪəriənsɪŋ/

experiencing

experimentando
Meaning
Encountering or undergoing an event or occurrence.
Example
The travelers are experiencing the thrill of adventure.
Los viajeros están experimentando la emoción de la aventura.
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.
B1 adjective /ˌel.ɪˈmen.tər.i/

Elementary

elemental; básico
Meaning
basic; fundamental; primary level
Example
He learned elementary mathematics in school.
Él aprendió matemáticas elementales en la escuela.
C2 noun, adjective /ɪˈklɪptɪk/

ecliptic

eclíptica
Meaning
The apparent path of the sun across the sky; relating to eclipses or this path.
Example
The ecliptic is the plane of Earth's orbit around the Sun.
La eclíptica es el plano de la órbita de la Tierra alrededor del Sol.
C1 verb /ɪnˈɡreɪv/

engrave

grabar
Meaning
to cut or carve a design, letter, or pattern into a hard surface
Example
The craftsman engraved her name on the silver ring.
El artesano grabó su nombre en el anillo de plata.
B1 noun /ɪkˈspreʃ.ən/

Expression

expresión; manifestación;
Meaning
the act of making thoughts or feelings known; a look on someone's face
Example
The artist's painting was a beautiful expression of her inner emotions.
La pintura del artista fue una hermosa expresión de sus emociones internas.
B2 noun ˌiːkəˈlɒdʒɪkəl ˈbæləns

ecological balance

balance ecológico
Meaning
A state of dynamic equilibrium within a community of organisms.
Example
Maintaining ecological balance is essential for a sustainable planet.
Mantener el equilibrio ecológico es esencial para un planeta sostenible.
C2 verb /ɪnˈθrɔːl/

enthral

cautivar
Meaning
To captivate or hold someone’s full attention.
Example
The magician’s performance enthralled the audience.
La actuación del mago cautivó a la audiencia.
B2 noun ɪnˈhɑːns.mənt

enhancement

mejora
Meaning
An increase or improvement in quality, value, or extent.
Example
Enhancement of education quality is vital.
La mejora de la calidad educativa es vital.
C2 noun ˌiːkwəˈnɪməti

equanimity

Calma mental, compostura y equilibrio, especialmente en una situación difícil
Meaning
Mental calmness, composure, and evenness of temper, especially in a difficult situation.
Example
She handled the news with remarkable equanimity.
Ella manejó la noticia con una equanimidad extraordinaria.
B1 noun /ˈɛlɪmənt/

element

elemento
Meaning
A basic or essential part of something; a simple substance that cannot be broken down further.
Example
Trust is a key element of any strong relationship.
La confianza es un elemento clave de cualquier relación fuerte.
C2 noun /ˌɛfləˈrɛsəns/

efflorescence

floración
Meaning
the process of flowering or reaching an optimal stage of development
Example
The garden was at the peak of its efflorescence in spring.
El jardín estaba en su pico de floración en primavera.
A1 number /eɪt/

eight

ocho
Meaning
The number equivalent to the product of two and four; one more than seven.
Example
There are eight apples in the basket.
Hay ocho manzanas en la canasta.
C2 noun /ɪkˌsprəʊ.priˈeɪ.ʃən/

expropriation

expropiación
Meaning
The act of government taking private property, also known as confiscation, nationalization, or seizure.
Example
The land expropriation led to disputes among landowners.
La expropiación de tierras llevó a disputas entre los propietarios de tierras.
B2 noun /ɪˈfɛktɪvnəs/

effectiveness

efectividad
Meaning
the degree to which something is successful in producing a desired result.
Example
The effectiveness of the new policy is still being evaluated.
La efectividad de la nueva política todavía se está evaluando.
C2 adjective ˈɛr.jʊ.daɪt

erudite

erudito o sabio
Meaning
Having or showing great knowledge or learning; scholarly and intellectual.
Example
The professor's erudite lecture fascinated the students.
La conferencia erudita del profesor fascinó a los estudiantes.
C1 verb /ɪɡˈzɔːlt/

exalt

exaltar, ensalzar
Meaning
to praise highly or raise in rank, honor, or power
Example
The community exalted the teacher for his dedication.
La comunidad exaltó al maestro por su dedicación.
C2 noun /ɪkˈstɛnsər/

extensor

músculo 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.
Los músculos extensores en el brazo ayudan a enderezar el codo.
C2 verb /ˈɛkspieɪt/

expiate

expiar
Meaning
to make amends for guilt or wrongdoing
Example
He tried to expiate his crime by helping the poor.
Él trató de expiar su crimen ayudando a los pobres.
B1 noun /ˈaɪ.braʊ/

Eyebrow

ceja
Meaning
the strip of hair growing on the ridge above the eye socket
Example
She raised her eyebrow in surprise.
Ella levantó la ceja en sorpresa.
C2 adjective /ɪkˈskɜːsɪv/

excursive

excursivo
Meaning
Tending to digress or wander; moving away from the main subject.
Example
His excursive lecture left the students confused about the main topic.
Su conferencia excursive dejó a los estudiantes confundidos sobre el tema principal.
C1 noun /ɪkˈspæns/

expanse

extensa área
Meaning
a wide, open area of land, sea, or sky
Example
The desert is a vast expanse of sand and rock.
El desierto es una vasta extensión de arena y roca.
C1 adjective ɪˌlektrəʊmæɡˈnetɪk

electromagnetic

electromagnético
Meaning
Relating to both electricity and magnetism or their interaction.
Example
Electromagnetic forces repel protons.
Las fuerzas electromagnéticas repelen los protones.
C1 adjective /ɪnˈlaɪ.tənd/

Enlightened

iluminado; esclarecido; sabio;
Meaning
having or showing a rational, modern outlook; having spiritual knowledge or understanding
Example
The enlightened teacher shared wisdom with all her students.
El maestro iluminado compartió sabiduría con todos sus estudiantes.
A2 noun ˌedʒ.ʊˈkeɪ.ʃən

education

educación
Meaning
The process of receiving or giving systematic instruction, especially at a school or university.
Example
Quality education is key to progress.
La educación de calidad es clave para el progreso.
B2 verb /ɪˈmɪt/

emit

Emitir
Meaning
to send out something such as light, heat, sound, or gas
Example
The factory emits smoke into the atmosphere.
La fábrica emite humo en la atmósfera.
C1 noun /ɪˈlɪpsɪs/

ellipsis

elipsis
Meaning
The omission of words in a sentence, represented by three dots (...).
Example
The writer used an ellipsis to show that part of the quote was omitted.
El escritor utilizó una elipsis para mostrar que se omitió parte de la cita.
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.
B2 noun /ˈɛseɪ/

essay

ensayo
Meaning
A short piece of writing on a particular subject.
Example
She wrote an essay about climate change.
Ella escribió un ensayo sobre el cambio climático.
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.
C1 noun /ˈek.saɪl/

Exile

exilio
Meaning
the state of being barred from one's native country; enforced removal from one's homeland
Example
The political leader was forced into exile after the military coup.
El líder político fue forzado al exilio después del golpe militar.
B1 adjective /ˈɛstɪmeɪtɪd/

estimated

estimado
Meaning
roughly calculated or judged; an approximate value or amount
Example
The estimated cost of the project is five million dollars.
El costo estimado del proyecto es de cinco millones de dólares.
B2 verb /ɪnˈlaɪtən/

enlighten

felicidad
Meaning
to give someone greater knowledge or understanding about a subject or situation
Example
The teacher tried to enlighten the students about ancient history.
Ella no podía ocultar su felicidad cuando recibió el premio.
C1 adjective /ɪkˈsiːdɪŋ/

Exceeding

excesivo; más allá
Meaning
going beyond; surpassing; extremely
Example
The project was completed with exceeding excellence.
El proyecto se completó con una excelencia excesiva.
C2 noun /ˌiː.mɛnˈdeɪ.ʃən/

emendation

enmendadura
Meaning
a correction or improvement made to a text
Example
The article required several emendations before it was ready for print.
El artículo requirió varias enmiendas antes de estar listo para imprimir.
B2 verb /ɪnˈdɔːrs/

endorse

respaldar
Meaning
To give approval or support to someone or something; to publicly recommend.
Example
The celebrity endorsed the new skincare product.
La celebridad respaldó el nuevo producto para el cuidado de la piel.
C2 verb /ɪnˈdjuː/

endue

dotar
Meaning
To provide or endow with a quality or ability.
Example
The leader was endued with wisdom and courage.
El líder fue dotado de sabiduría y coraje.
A2 noun/verb /ˌɛndʒɪˈnɪər/

engineer

ingeniero
Meaning
A person trained to design, build, or maintain engines, machines, or structures; to skillfully arrange or bring about.
Example
The engineer designed a new bridge across the river.
El ingeniero diseñó un nuevo puente sobre el río.
B1 verb /ɪmˈbærəs/

embarrass

avergonzar
Meaning
to cause someone to feel awkward, self-conscious, or ashamed
Example
His rude comment really embarrassed her in front of everyone.
Su comentario grosero realmente la avergonzó frente a todos.
C1 adjective + noun এক্সেসিভ স্ট্রেইন

excessive strain

estrés excesivo
Meaning
An amount of physical pressure or stress that is more than what is normal or acceptable.
Example
Excessive strain on fingers can cause musculoskeletal issues.
El estrés excesivo en los dedos puede causar problemas musculoesqueléticos.
C2 noun /ˈɛpənɪm/

eponym

persona de la que se toma el nombre
Meaning
A person after whom a discovery, invention, place, or other thing is named.
Example
Sandwich is an eponym named after the Earl of Sandwich.
Sándwich es un epónimo nombrado en honor al Conde de Sándwich.
C1 noun /ˌɛks.həˈleɪ.ʃən/

exhalation

exhalación
Meaning
The action of breathing out.
Example
Slow exhalation calms the nervous system.
Una exhalación lenta calma el sistema nervioso.
B2 verb /ɪˈvæljueɪt/

evaluate

evaluar
Meaning
To assess or judge the value, quality, or significance of something.
Example
The teacher will evaluate the students’ projects tomorrow.
El maestro evaluará los proyectos de los estudiantes mañana.
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 adjective /ˌɛm.pəˈθɛ.tɪk/

empathetic

empático
Meaning
Showing ability to understand and share feelings of others.
Example
She was empathetic towards her friend's struggles.
Ella fue empática hacia las luchas de su amiga.
C1 noun /ˈem.ɪ.nəns/

Eminence

fama; superioridad
Meaning
fame or recognized superiority; high rank or status
Example
The professor achieved eminence in the field of quantum physics.
El profesor alcanzó la fama en el campo de la física cuántica.
C2 noun/adjective /ɪˈmɒliənt/

emollient

sustancia que suaviza la piel
Meaning
a substance that softens or soothes the skin
Example
She used an emollient cream to treat her dry skin.
Ella usó una crema emoliente para tratar su piel seca.
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.
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.
B2 verb /ɪmˈbɛd/

embed

incrustar
Meaning
to fix something firmly into a surrounding mass or context
Example
The journalist was embedded with the military unit.
El periodista estaba incrustado con la unidad militar.
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.
B2 verb /ɪnˈdeɪndʒər/

endanger

poner en peligro
Meaning
To put someone or something at risk or in danger.
Example
Cutting down forests can endanger many species of animals.
Cortar los bosques puede poner en peligro muchas especies de animales.
C1 verb /ɪˈkɒnəmaɪz/

economize

economizar
Meaning
To reduce spending or use resources carefully.
Example
Families are trying to economize by cutting unnecessary expenses.
Las familias están tratando de economizar reduciendo gastos innecesarios.
A2 noun /ˈel.ɪ.fənt/

Elephant

elefante
Meaning
a very large gray mammal with long curved teeth and a long nose called a trunk
Example
The elephant is the largest land animal in the world.
El elefante es el animal terrestre más grande del mundo.
C2 noun /ɪˈlɛk.trə.taɪp/

electrotype

electrotipo
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.
El impresor utilizó un electrotipo para producir múltiples copias de la página.
B2 adjective ɪˈvɒlvɪŋ

evolving

evolutivo
Meaning
Developing gradually, especially from a simple to a more complex form; changing and developing.
Example
Education plays a role in evolving societal norms.
La educación juega un papel en la evolución de las normas sociales.
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.
B1 noun /edʒ/

Edge

borde; filo
Meaning
the outside limit of an object or area; a sharp side of a blade
Example
Be careful not to cut yourself on the sharp edge of the knife.
Ten cuidado de no cortarte con el borde afilado del cuchillo.
C2 verb /ɪˈvɪns/

evince

demostrar
Meaning
to show or demonstrate clearly
Example
She evinced her interest in the project through active participation.
Ella evidenció su interés en el proyecto mediante una participación activa.
B1 adjective ɪɡˈzɪs.tɪŋ

existing

existente
Meaning
In existence; present; current.
Example
The commission reviews existing provisions.
La comisión revisa las disposiciones existentes.
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.
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.
B2 adverb /ɪˈfɪʃəntli/

efficiently

de manera eficiente
Meaning
in a way that achieves maximum productivity with minimum wasted effort or expense
Example
She managed to complete the task efficiently within the deadline.
Ella logró completar la tarea de manera eficiente dentro del plazo.
B1 verb /ɪɡˈzɪst/

exist

existir
Meaning
to have being or reality; to be present
Example
Dinosaurs existed millions of years ago.
Los dinosaurios existieron hace millones de años.
B2 noun /ˈɜːnɪŋz/

earnings

ingresos
Meaning
money obtained in return for labor or services
Example
Her monthly earnings are enough to support her family.
Sus ingresos mensuales son suficientes para mantener a su familia.
C2 verb /ɪˈnəʊbəl/

ennoble

ennoblecer
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.
Sus acciones desinteresadas enaltecieron su carácter a los ojos de los demás.
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.
C2 verb /ɪkˈspɒstjʊleɪt/

expostulate

expresar desacuerdo
Meaning
to express strong disapproval or disagreement
Example
She expostulated with her friend about the risky decision.
Ella expuso su desacuerdo con su amigo sobre la decisión arriesgada.
C2 adjective /ɪˈmɛrɪtəs/

emeritus

emerito honorario
Meaning
having retired but allowed to retain their title as an honor
Example
He is a professor emeritus at the university.
Él es un profesor emérito en la universidad.
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 noun /ˌɛksəˈdʒiːsɪs/

exegesis

exégesis
Meaning
A critical explanation or interpretation of a text, especially a religious scripture.
Example
The professor gave a detailed exegesis of the biblical passage.
El profesor dio una exégesis detallada del pasaje bíblico.
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.
B1 noun ɪɡˌzæm.ɪˈneɪ.ʃənz

examinations

exámenes
Meaning
A detailed inspection or investigation; a formal test of a person's knowledge or proficiency.
Example
BPSC conducts rigorous examinations.
BPSC realiza exámenes rigurosos.
C1 adjective /ˈɜːr.nɪst/

Earnest

serio; genuino; mostrando profunda y seria convicción
Meaning
sincere; genuine; showing deep and serious conviction
Example
He made an earnest attempt to solve the problem.
Él hizo un intento serio de resolver el problema.