aperture
All a b c d e f g h i j k l m n o p q r s t u v w x y z
All CEFR A1 A2 B1 B2 C1 C2
Content locale
EN English BN Bengali HI Hindi ES Español FR Francés DE Alemán RU Ruso ZH Chino JA Japonés
All Vocabulary Cards All Vocabularies
C1 noun /ˈæpərtʃər/

aperture

abertura / agujero
Meaning
an opening, hole, or gap, especially one that lets in light
Example
Light entered through the small aperture in the wall.
La luz entró a través de la pequeña abertura en la pared.
B2 noun /ˈpesɪˌmɪzəm/

pessimism

pesimismo
Meaning
A tendency to see the worst aspect of things or believe the worst will happen.
Example
Her constant pessimism made it hard to stay optimistic.
Su constante pesimismo hacía difícil mantener una actitud optimista.
C2 adjective /ɪˈmɪsəbl/

immiscible

inmiscible
Meaning
Describes liquids that do not mix together.
Example
Oil and water are immiscible liquids.
El aceite y el agua son líquidos inmiscibles.
C1 verb /ˈrætɪfaɪ/

ratify

ratificar
Meaning
to approve or confirm something officially, usually by law or formal consent
Example
The government ratified the trade agreement.
El gobierno ratificó el acuerdo comercial.
A2 noun, pronoun, verb /maɪn/

mine

mina / mío
Meaning
a place where minerals are dug from the ground; or something belonging to me
Example
The workers went deep into the mine to extract coal.
Los trabajadores fueron al fondo de la mina para extraer carbón.
C2 adjective /ˈdʒes.tɪŋ/

Jesting

burlón
Meaning
joking or teasing in a playful manner
Example
He was only jesting when he said he would quit his job.
Él solo estaba bromeando cuando dijo que renunciaría a su trabajo.
A1 adjective /dɪr/

dear

querido
Meaning
loved or cherished; sometimes used as a polite form of address
Example
She is very dear to her grandparents.
Ella es muy querida por sus abuelos.
C2 noun /ˈnaɪsəti/

nicety

sutileza
Meaning
a fine or subtle detail, or a refined, delicate aspect of something
Example
The lawyer explained the legal niceties of the case.
El abogado explicó los detalles legales del caso.
C1 verb /ɪnˈlaɪvən/

enliven

animar
Meaning
to make something more lively, interesting, or cheerful
Example
Her jokes helped enliven the dull meeting.
Sus bromas ayudaron a animar la aburrida reunión.
B2 noun/verb /ˈsoʊ.ɪŋ/

sewing

costura
Meaning
The activity or skill of joining fabric using a needle and thread
Example
She enjoys sewing her own clothes on weekends.
Ella disfruta cosiendo su propia ropa los fines de semana.
C2 noun /æmˈbroʊʒə/

ambrosia

ambrosía
Meaning
The food of the gods in classical mythology; something extremely pleasing to taste or smell.
Example
The dessert was so delicious that it tasted like ambrosia.
El postre estaba tan delicioso que sabía a ambrosía.
B1 noun kəˈmɪt.mənts

commitments

compromisos
Meaning
Formal pledges or promises to do something, especially in terms of obligations or agreements.
Example
Global commitments to renewable energy are increasing.
Los compromisos globales con la energía renovable están aumentando.
C1 adjective ˈɛl.ə.kwənt

eloquent

elocuente
Meaning
Fluent or persuasive in speaking or writing; clearly expressing or indicating something.
Example
Her eloquent speech inspired the entire audience.
Su elocuente discurso inspiró a toda la audiencia.
B2 verb /ɪnˈtriːɡ/

intrigue

intrigar
Meaning
to arouse curiosity or interest; to make someone fascinated
Example
The mystery novel will intrigue any reader.
La novela de misterio intriga a cualquier lector.
C1 verb /riːˈpeɪ.tri.eɪt/

repatriate

repatriar
Meaning
To return someone to their own country, often after war or imprisonment.
Example
The government worked to repatriate the refugees safely.
El gobierno trabajó para repatriar a los refugiados de manera segura.
B2 adjective /ˈkɒmɪkəl/

comical

cómico
Meaning
Funny in a strange or silly way; amusing.
Example
His comical expressions made everyone laugh.
Sus expresiones cómicas hicieron reír a todos.
B2 noun, adjective, adverb /ˌnɔːrθˈwest/

northwest

noroeste
Meaning
the direction that is between north and west; situated in or moving toward this direction
Example
Seattle is located in the northwest of the United States.
Seattle está ubicado en el noroeste de los Estados Unidos.
C2 noun /ˈkwɪzlɪŋ/

quisling

traidor
Meaning
A traitor who collaborates with an enemy force occupying their country.
Example
During the war, he was branded a quisling for aiding the invaders.
Durante la guerra, fue etiquetado como un quisling por ayudar a los invasores.
C1 verb /ˌsuːpərɪmˈpoʊz/

superimpose

superponer
Meaning
to place one thing on top of another so that both can be seen
Example
The editor superimposed text over the image.
El editor superpuso texto sobre la imagen.
A2 adjective /ʌnˈhæp.i/

Unhappy

descontento; triste
Meaning
not happy; feeling sad or displeased; unfortunate or undesirable
Example
He was unhappy with the results of his exam.
Él estaba descontento con los resultados de su examen.
B1 noun /trænzˈleɪtər/

translator

traductor
Meaning
a person or tool that converts words or text from one language into another
Example
The translator helped the tourists understand the guide.
El traductor ayudó a los turistas a entender la guía.
C2 verb /nɑːrl/

gnarl

torcer
Meaning
To twist into a knotted or distorted form.
Example
The tree roots began to gnarl around the stones.
Las raíces del árbol comenzaron a torcerse alrededor de las piedras.
C1 adjective /ˈneɪzl/

nasal

nasal
Meaning
Relating to the nose; a sound produced through the nose.
Example
He spoke with a nasal voice due to his cold.
Él habló con voz nasal debido a su resfriado.
C2 noun /ˈkɪləˌliːtər/

kiloliter

kilolitro
Meaning
a unit of capacity equal to 1,000 liters
Example
The tank can hold up to three kiloliters of water.
El tanque puede contener hasta tres kilolitros de agua.
C2 verb /ɪnˈdɛmnɪfaɪ/

indemnify

indemnizar
Meaning
to compensate someone for harm or loss; to secure against future damage or cost
Example
The insurance company agreed to indemnify the client for the damages.
La compañía de seguros acordó indemnizar al cliente por los daños.
B1 noun ˈsɪs.təmz

systems

sistemas
Meaning
A set of connected things or parts forming a complex whole.
Example
Effective systems improve productivity.
Los sistemas efectivos mejoran la productividad.
A1 noun /kiː/

Key

llave
Meaning
a small piece of shaped metal used to operate a lock; something that provides a means of access
Example
She lost her house key and couldn't get inside until the locksmith arrived.
Ella perdió su llave de casa y no pudo entrar hasta que llegó el cerrajero.
B1 noun /ɪnˈɡeɪdʒ.mənt/

engagement

compromiso, participación
Meaning
The action of engaging or being engaged; participation or involvement.
Example
Social media engagement helps brands connect with their audience.
El compromiso en las redes sociales ayuda a las marcas a conectar con su audiencia.
B1 noun /θʌm/

Thumb

dedo del pie
Meaning
the short thick finger of the human hand
Example
She gave me a thumbs up to show her approval.
Ella me dio el dedo pulgar arriba para mostrar su aprobación.
C2 adjective /ˈdjuːtiəs/

duteous

obediente
Meaning
dutiful; obedient and respectful
Example
The duteous child always followed her parents’ instructions.
La niña obediente siempre seguía las instrucciones de sus padres.
C2 adjective /ˈlɛtʃ.ər.əs/

lecherous

lujurioso
Meaning
having or showing excessive or offensive sexual desire
Example
The character was portrayed as a lecherous old man.
El personaje fue retratado como un hombre lujurioso.
B2 noun /ˈsɜr.neɪm/

Surname

apellido
Meaning
a hereditary name common to all members of a family; family name
Example
Please write your first name and surname on the form.
Por favor, escriba su primer nombre y apellido en el formulario.
C1 noun /ˈsɜːrmən/

sermon

sermón
Meaning
A religious discourse delivered by a preacher, often offering moral instruction or spiritual guidance.
Example
The pastor gave a moving sermon about compassion and forgiveness.
El pastor dio un sermón conmovedor sobre la compasión y el perdón.
C2 noun /ˌɔːltərˈkeɪʃən/

altercation

altercado, pelea
Meaning
a noisy argument or quarrel
Example
There was a brief altercation between the two drivers.
Hubo una breve altercación entre los dos conductores.
B2 noun /ɡloʊb/

Globe

objeto esférico; la tierra; un modelo esférico de la tierra
Meaning
a spherical or rounded object; the earth; a spherical model of the earth
Example
The teacher used a globe to show the students the locations of different countries.
El maestro usó un globo para mostrar a los estudiantes las ubicaciones de diferentes países.
C1 adjective /kənˈsɜːrtɪd/

concerted

concertado
Meaning
done with great effort, planned and performed together by multiple people
Example
The workers made a concerted effort to improve conditions.
Los trabajadores hicieron un esfuerzo concertado para mejorar las condiciones.
C2 verb /ɪmˈbɪtər/

embitter

amargar
Meaning
To make someone resentful or angry; to cause bitterness.
Example
The unfair treatment embittered the employees.
El trato injusto amargó a los empleados.
C2 verb /dɪˈdʒɛkt/

deject

deprimir
Meaning
to make someone feel sad, depressed, or dispirited
Example
The news of his failure seemed to deject him deeply.
La noticia de su fracaso pareció deprimirlo profundamente.
C1 noun /ˈkruːsɪbəl/

crucible

prueba severa, recipiente para fundir sustancias
Meaning
a severe test or trial; a container used for heating substances to very high temperatures
Example
The team emerged stronger from the crucible of competition.
El equipo salió más fuerte del crisol de la competencia.
B1 noun /kloʊðz ˈaɪərn/

Clothes iron

plancha de ropa
Meaning
An electric appliance used to remove wrinkles from clothes by applying heat and pressure
Example
I need to use the clothes iron to make my shirt look neat for the meeting.
Necesito usar la plancha de ropa para hacer que mi camisa luzca ordenada para la reunión.
C1 noun /kənˈsiːt/

conceit

vanidad
Meaning
excessive pride in oneself; vanity
Example
His conceit made him unpopular among his colleagues.
Su vanidad lo hizo impopular entre sus compañeros.
C1 adjective /ˈæntɪkweɪtɪd/

antiquated

anticuado
Meaning
Old-fashioned or outdated.
Example
The office still uses an antiquated filing system.
La oficina todavía usa un sistema de archivos anticuado.
B1 noun /ˈspiːʃiːz/

Species

especie; tipo
Meaning
a group of living organisms that can reproduce with each other; a type or kind
Example
The Amazon rainforest is home to thousands of animal species.
La selva amazónica es hogar de miles de especies animales.
B2 noun /vɜːrs/

verse

verso
Meaning
A line of writing in poetry; a section of a song or poem.
Example
She wrote a beautiful verse for the wedding ceremony.
Ella escribió un hermoso verso para la ceremonia de la boda.
B2 noun /ˈskɔːr.pi.ən/

Scorpion

escorpión
Meaning
a small creature with eight legs, two claws, and a curved tail with a poisonous sting
Example
The scorpion hid under the rock during the day.
El escorpión se escondió debajo de la roca durante el día.
A2 adjective /mɪkst/

mixed

mezclado
Meaning
consisting of different elements or having varied opinions or feelings
Example
The audience had mixed reactions to the film.
La audiencia tuvo reacciones mixtas hacia la película.
B2 noun /ˈaʊtɪŋ/

outing

excursión
Meaning
a short trip or excursion, often for leisure or enjoyment
Example
They had a lovely outing at the beach last weekend.
Tuvieron una maravillosa excursión en la playa el fin de semana pasado.
B2 adjective /ɡəʊl ɔːˈrɪəntɪd/

goal-oriented

orientado a metas
Meaning
Focused on achieving specific objectives or targets; driven by clear aims.
Example
Being goal-oriented is crucial for achieving success.
Ser orientado a metas es crucial para alcanzar el éxito.
B2 adjective /ˌɪnfluˈenʃəl/

Influential

influyente; persuasivo
Meaning
having great influence on someone or something; powerful; persuasive
Example
She is an influential leader in the community.
Ella es una líder influyente en la comunidad.
C1 noun /ˈpæl.ət/

Palate

paladar; capacidad para distinguir sabores
Meaning
the roof of the mouth; a person's ability to distinguish between different flavors
Example
The chef created dishes to please every palate.
El chef creó platos para complacer todos los paladares.
C2 adjective /ˌpriːpəˈzɛsɪŋ/

prepossessing

atractivo
Meaning
Attractive or appealing in appearance or manner.
Example
She had a prepossessing smile that charmed everyone.
Ella tenía una sonrisa atractiva que cautivó a todos.
C2 noun /pəˈræm.bjə.leɪ.tər/

Perambulator

cochecito de bebé
Meaning
a four-wheeled carriage for a baby; baby stroller or pram
Example
She pushed the perambulator through the park while the baby slept peacefully.
Ella empujaba el perambulator por el parque mientras el bebé dormía tranquilamente.
C2 adjective /ˈfiːtɪd/

foetid

hediondo
Meaning
having an offensive, unpleasant smell
Example
The foetid smell from the garbage made it hard to breathe.
El hedor del basurero hizo que fuera difícil respirar.
C1 noun dɪˈskrep.ən.siz

discrepancies

discrepancia
Meaning
Differences between things that should be the same
Example
Discrepancies in regulations delay progress.
Las discrepancias en las regulaciones retrasan el progreso.
B1 adjective /ˈskɪlfʊl/

Skilful

habilidoso; experto; diestro
Meaning
having or showing skill; expert and accomplished
Example
The skilful surgeon performed the operation with great precision.
El cirujano habilidoso realizó la operación con gran precisión.
A2 noun /ˈnɛtˌwɜrk/

network

red
Meaning
A system of interconnected people, things, or computers.
Example
She built a strong professional network.
Ella construyó una red profesional sólida.
C1 noun /ˈprɛsɪdəns/ or /prɪˈsiːdəns/

precedence

precedencia
Meaning
the condition of being considered more important than someone or something else; priority
Example
Safety takes precedence over speed in this factory.
En esta fábrica, la seguridad tiene prioridad sobre la velocidad.
C1 verb /ˈpæmpər/

pamper

mimar / consentir
Meaning
to treat with excessive care and attention; to spoil
Example
Parents often pamper their first child.
Los padres a menudo miman a su primer hijo.
B2 noun /ˈsɒlɪtjuːd/

solitude

soledad
Meaning
The state or situation of being alone.
Example
Solitude can provide the opportunity for deep reflection.
La soledad puede proporcionar la oportunidad para una reflexión profunda.
B2 noun /bʌd/

Bud

capullo
Meaning
An undeveloped or immature flower before it opens
Example
The rose bud will bloom into a beautiful flower in a few days.
El capullo de rosa se convertirá en una hermosa flor en unos pocos días.
C2 noun /maɪˈnjuːʃə/

minutia

minucias
Meaning
a small or trivial detail of something
Example
He was bored by the minutia of office paperwork.
Estaba aburrido por las minucias del papeleo de la oficina.
C1 noun /moʊld/

Mould

molde; moho
Meaning
a hollow container used to give shape to molten material; fungus
Example
She poured chocolate into the mould to make candies.
Ella vertió chocolate en el molde para hacer caramelos.
A2 noun /dɪˈɡriː/

degree

grado / nivel
Meaning
an amount or level of something; an academic qualification
Example
She earned a degree in engineering.
Ella obtuvo un grado en ingeniería.
C2 noun /koʊˈædʒətər/

coadjutor

auxiliar
Meaning
a person who helps or assists another, especially in a religious or official capacity
Example
The bishop appointed a coadjutor to assist him with his duties.
El obispo nombró a un auxiliar para que lo asistiera con sus deberes.
C2 adjective /ɪmˈpælpəbəl/

impalpable

intangible
Meaning
unable to be felt by touch; difficult to grasp or understand
Example
There was an impalpable sense of fear in the room.
Había una sensación intangible de miedo en la habitación.
B1 noun /əˌkɒm.əˈdeɪ.ʃənz/

accommodations

alojamiento
Meaning
Lodging; room and board; places to stay.
Example
The students had proper accommodations.
Los estudiantes tenían alojamiento adecuado.
B1 noun /ˈprɛzəns/

presence

presencia
Meaning
The fact or condition of being present; a person's impressive manner or appearance.
Example
His presence in the meeting made everyone feel at ease.
Su presencia en la reunión hizo que todos se sintieran a gusto.
A1 adverb /ðɛn/

then

entonces
Meaning
at that time; next in order of time or place
Example
We went to the park, and then we had lunch.
Fuimos al parque, y luego comimos.
C1 adjective ʌnˈjiːl.dɪŋ

unyielding

inquebrantable o firme
Meaning
Not easily broken or giving in to pressure.
Example
Her unyielding determination helped her overcome all challenges.
Su determinación inquebrantable la ayudó a superar todos los desafíos.
C1 adjective /ˈmaɪ.ɡrə.tɔːr.i/

Migratory

migratorio
Meaning
moving from one place to another; characterized by seasonal movement
Example
Many birds are migratory and travel thousands of miles each season.
Muchos pájaros son migratorios y viajan miles de millas cada temporada.
C1 adjective /ˌpæθəˈlɑːdʒɪkəl/

pathological

patológico, enfermizo
Meaning
Relating to disease; extreme or obsessive in a way that is abnormal.
Example
He has a pathological fear of failure.
Él tiene un miedo patológico al fracaso.
C1 noun /dɪˈsɜːn.mənt/

discernment

discernimiento
Meaning
The ability to judge well or understand something correctly; keen insight.
Example
His discernment in business decisions made him successful.
Su discernimiento en las decisiones de negocios lo hizo exitoso.
C1 adjective /ʌnˈwɪtɪŋ/

unwitting

inconsciente
Meaning
Not aware of what is happening; done without realizing.
Example
She became an unwitting participant in the scam.
Se convirtió en una participante inconsciente en la estafa.
B2 noun /ˈtɛrərɪst/

terrorist

terrorista
Meaning
a person who uses violence or threats to intimidate or coerce, especially for political purposes
Example
The terrorist was arrested by the police after the attack.
El terrorista fue arrestado por la policía después del ataque.
A2 noun /fɒks/

Fox

zorro
Meaning
a wild animal related to dogs, with a pointed face and thick fur
Example
The red fox is known for its cunning nature.
El zorro rojo es conocido por su astucia.
B2 noun/verb /skræp/

scrap

pedazo / descartar
Meaning
A small piece of something; to discard or get rid of something.
Example
He used a scrap of paper to jot down the number.
Usó un trozo de papel para anotar el número.
C2 adjective /ˈbɔːdi/

bawdy

obsceno
Meaning
humorously indecent or obscene, often in a sexual way
Example
The comedian’s bawdy jokes made the audience laugh and blush.
Los chistes obscenos del comediante hicieron reír a la audiencia y sonrojarse.
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.
A2 adjective /əˈlaɪv/

Alive

vivo; no muerto; lleno de vida y energía
Meaning
living; not dead; full of life and energy
Example
The old man is still alive and healthy.
El viejo hombre sigue vivo y saludable.
C2 noun /ˌdɪʃəˈbiːl/

dishabille

desaliñado
Meaning
The state of being only partly or loosely dressed; casual or careless attire.
Example
She answered the door in a state of dishabille, wearing just a robe.
Ella contestó la puerta en un estado de desaliño, usando solo una bata.
B2 noun ɡrɪd

grid

reja
Meaning
A network of interconnected lines or a system for distributing electricity over a wide area.
Example
The national power grid must be upgraded.
La red nacional de energía debe ser mejorada.
C2 noun /ˈfrækɑː/

fracas

escándalo
Meaning
A noisy disturbance or quarrel.
Example
The fracas outside the bar drew the attention of the police.
El escándalo fuera del bar llamó la atención de la policía.
B2 noun /ˈpaɪpˌlaɪn/

pipeline

tubería
Meaning
a long tube through which liquids or gases are transported
Example
The company is building a new pipeline to transport natural gas.
La empresa está construyendo una nueva tubería para transportar gas natural.
C1 noun /təˈbuː/

taboo

tabú
Meaning
a social or cultural prohibition against certain practices or discussions
Example
Talking about money is considered a taboo in some cultures.
Hablar de dinero se considera un tabú en algunas culturas.
C2 noun /ɪnˈdɛntʃər/

indenture

contrato de servidumbre
Meaning
A formal legal agreement, contract, or document, often relating to work or service.
Example
In the 18th century, many workers came under indenture to work overseas.
En el siglo XVIII, muchos trabajadores estuvieron bajo un contrato de servidumbre para trabajar en el extranjero.
C2 adjective /ˈmɔːrdənt/

mordant

mordaz, crítico o sarcástico
Meaning
Having a sharp, critical, or biting quality; especially in humor.
Example
Her mordant wit often left her friends speechless.
Su mordaz sentido del humor dejaba a menudo a sus amigos sin palabras.
C2 verb /ˈmjuːtɪleɪt/

mutilate

mutilar
Meaning
to inflict serious damage on something, often by cutting or tearing
Example
The ancient manuscript was mutilated by careless handling.
El antiguo manuscrito fue mutilado por un manejo descuidado.
C1 adjective /ˈriːɡəl/

regal

real
Meaning
Resembling or fit for a king; majestic or royal.
Example
The queen entered the hall with a regal presence.
La reina entró al salón con una presencia real.
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.
C2 adjective /əˈluːsɪv/

allusive

alusivo
Meaning
Making indirect references or hints; suggestive without being explicit.
Example
The novel is full of allusive passages that point to classical literature.
La novela está llena de pasajes alusivos que apuntan a la literatura clásica.
B2 noun /ˌsuːvəˈnɪər/

Souvenir

souvenir
Meaning
a thing that is kept as a reminder of a person, place, or event; a memento
Example
I bought a small souvenir from the gift shop.
Compré un pequeño souvenir en la tienda de regalos.
A2 adverb /ˈnoʊwɛr/

Nowhere

en ningún lado
Meaning
not anywhere; in no place
Example
I searched everywhere but the keys were nowhere to be found.
Busqué por todas partes pero las llaves no estaban en ningún lado.
A1 preposition, conjunction, adverb /ˈæftər/

after

después
Meaning
in the time following an event or another action
Example
We went for ice cream after the movie.
Fuimos a comer helado después de la película.
B2 noun /ˈstɛriəˌtaɪp/

stereotype

estereotipo
Meaning
A widely held but oversimplified and fixed idea of a particular type of person or thing.
Example
It is a stereotype that all gamers are antisocial.
Es un estereotipo que todos los jugadores son antisociales.
B2 noun /ˈpɑːtnəʃɪp/

partnership

asociación
Meaning
the state of being a partner or a group of partners
Example
Our partnership has helped both companies grow.
Nuestra asociación ha ayudado a ambas empresas a crecer.
C1 noun /ænˈtɪθəsɪs/

antithesis

antítesis
Meaning
A person, thing, or idea that is the direct opposite of another; a rhetorical device contrasting opposing ideas in parallel structure.
Example
Love is the antithesis of hate.
El amor es la antítesis del odio.
B2 verb /ˌʌndərˈɛstɪmeɪt/

underestimate

subestimar
Meaning
To judge something as less important or smaller than it really is.
Example
Never underestimate the power of teamwork.
Nunca subestimes el poder del trabajo en equipo.
A1 noun /ˈfraɪ.deɪ/

friday

viernes
Meaning
the day of the week following Thursday and preceding Saturday
Example
We have a team meeting every Friday afternoon.
Tenemos una reunión de equipo todos los viernes por la tarde.
A1 verb /bʌt/

but

dar un cabezazo
Meaning
to hit or push with the head or horns; to strike forcefully
Example
The goat butted against the fence.
La cabra dio un cabezazo contra la cerca.
B2 verb /ɪnˈʃʊər/

insure

asegurar
Meaning
to provide insurance; to make certain
Example
I need to insure my new car.
Necesito asegurar mi coche nuevo.
C2 adjective /ˈseɪpiənt/

sapient

sabio
Meaning
Wise, or appearing to be wise.
Example
The professor gave a sapient response to the complex question.
El profesor dio una respuesta sabia a la compleja pregunta.
C2 verb /ˈɑːblɪˌɡeɪt/

obligate

obligar
Meaning
to bind legally or morally; to compel someone to do something
Example
The contract obligates the company to provide timely service.
El contrato obliga a la empresa a proporcionar un servicio puntual.
B2 noun /ɪnˈsaɪdə/

insider

insider
Meaning
a person within a group or organization who has access to confidential information
Example
He was an insider who knew all the company's secrets.
Él era un insider que conocía todos los secretos de la empresa.
C1 adjective kənˈten.ʃəs

contentious

controvertido
Meaning
Causing or likely to cause an argument; controversial.
Example
The contentious issue divided global leaders.
El tema controvertido dividió a los líderes globales.
C2 noun /ˈlɪŋ.ɡwə/

lingua

lengua
Meaning
A language, especially one used for communication among people.
Example
English has become a global lingua for business and science.
El inglés se ha convertido en una lengua global para los negocios y la ciencia.
C2 adjective /ˈsiːkwənt/

sequent

secuente
Meaning
Following in order or as a result.
Example
The sequent events changed the course of history.
Los eventos subsecuentes cambiaron el curso de la historia.
C1 verb /rɪˈfjuːt/

refute

refutar
Meaning
To prove a statement, argument, or theory to be false or invalid.
Example
The lawyer refuted the witness's testimony with solid evidence.
El abogado refutó el testimonio del testigo con pruebas sólidas.
C1 adjective /ˌɛnɪɡˈmætɪk/

enigmatic

enigmático
Meaning
mysterious and difficult to interpret or understand
Example
He gave me an enigmatic smile.
Él me dio una sonrisa enigmática.
C1 verb /ˌrevəˈluːʃənaɪz/

revolutionize

revolucionar
Meaning
Change (something) radically or fundamentally.
Example
Artificial intelligence is set to revolutionize the healthcare sector.
La inteligencia artificial está lista para revolucionar el sector de la salud.
C1 adjective /ˈskwɒlɪd/

squalid

extremadamente sucio
Meaning
extremely dirty and unpleasant, often due to poverty or neglect
Example
He lived in a squalid room with broken furniture.
Vivía en una habitación sucia con muebles rotos.
C1 verb /əˈliː.vi.eɪt/

alleviate

aliviar o mitigar
Meaning
To make suffering, deficiency, or a problem less severe; to relieve or ease.
Example
Meditation can alleviate stress and improve focus.
La meditación puede aliviar el estrés y mejorar el enfoque.
C2 noun /traɪˈʌmvɪrət/

triumvirate

triunvirato
Meaning
A political regime ruled or dominated by three powerful individuals.
Example
The Roman Republic was once governed by a triumvirate.
La República Romana una vez fue gobernada por un triunvirato.
B1 adjective /ˈhɪd.ən/

Hidden

oculto; secreto; invisible
Meaning
concealed from view; kept secret; not visible or apparent
Example
There was a hidden camera in the room.
Había una cámara oculta en la habitación.
C2 verb /slʌf/ or /sluː/

slough

desprender la piel / zona pantanosa
Meaning
To shed or cast off (like dead skin); also a swampy or muddy area.
Example
The snake sloughed off its old skin.
La serpiente se desprendió de su piel vieja.
B2 noun /fraɪt/

Fright

miedo; susto; pavor
Meaning
a sudden intense feeling of fear; a shock or surprise that causes fear
Example
The loud thunder gave her such a fright that she dropped her coffee cup.
El fuerte trueno le dio tal susto que dejó caer su taza de café.
C2 noun /ˈproʊtoʊˌplæzəm/

protoplasm

protoplasma
Meaning
The living substance inside a cell, including the cytoplasm and nucleus.
Example
Scientists observed the movement of protoplasm under the microscope.
Los científicos observaron el movimiento del protoplasma bajo el microscopio.
C2 noun /koʊˈkɛt/

coquette

mujer coqueta
Meaning
a woman who flirts lightheartedly
Example
She was a coquette, always charming everyone at the party.
Ella era una coqueta, siempre encantando a todos en la fiesta.
A2 adjective /ˈʃaɪ.ni/

Shiny

brillante; reluciente;
Meaning
reflecting light; bright and polished; glossy
Example
The shiny new car caught everyone's attention.
El coche nuevo brillante llamó la atención de todos.
C1 adjective /ˈtɛlˌteɪl/

telltale

delator
Meaning
Revealing something that is usually hidden; giving away a secret or clue.
Example
The telltale signs of fatigue were visible on his face.
Los signos delatores de fatiga eran visibles en su rostro.
C2 noun /rɪˈfrækʃən/

refraction

refracción
Meaning
The bending of light, sound, or other waves when they pass from one medium to another of different density.
Example
The refraction of light in water makes objects appear bent.
La refracción de la luz en el agua hace que los objetos parezcan doblados.
B2 adjective /ˈɛəri/

airy

aireado
Meaning
Spacious and well-ventilated; light and breezy.
Example
The new apartment is bright and airy.
El nuevo apartamento es brillante y aireado.