baseboard
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C1 noun /ˈbeɪsbɔːrd/

baseboard

zócalo
Meaning
A narrow board running along the bottom of an interior wall, covering the joint between wall and floor.
Example
The carpenter painted the baseboard white.
El carpintero pintó el zócalo de blanco.
C1 noun ˈhaɪ.drə.dʒən ˈpaʊ.əd bʌsɪz

hydrogen-powered buses

autobuses impulsados por hidrógeno
Meaning
Buses powered by hydrogen fuel cells that produce only water vapor as emission.
Example
Hydrogen-powered buses reduce air pollution.
Los autobuses impulsados por hidrógeno reducen la contaminación del aire.
C1 verb /səˈlɪsɪt/

solicit

solicitar
Meaning
to ask for or try to obtain something from someone
Example
The charity is soliciting donations for flood victims.
La caridad está solicitando donaciones para las víctimas de las inundaciones.
C1 noun /kənˈtʃɛrtoʊ/

concerto

composición musical
Meaning
a musical composition for one or more solo instruments accompanied by an orchestra
Example
She played a Mozart concerto with the orchestra.
Ella tocó un concierto de Mozart con la orquesta.
C1 noun /ˈiːɡoʊˌɪzəm/

egoism

egoísmo
Meaning
An ethical theory that treats self-interest as the foundation of morality; also, excessive preoccupation with oneself.
Example
His decisions were often driven by egoism rather than concern for others.
Sus decisiones a menudo eran impulsadas por el egoísmo en lugar de por la preocupación por los demás.
C1 adjective /fəˈroʊ.ʃəs/

Ferocious

feroz, salvaje, cruel
Meaning
savagely fierce, cruel, or violent; extremely aggressive
Example
The ferocious storm destroyed many houses in the coastal area.
La feroz tormenta destruyó muchas casas en la zona costera.
C1 adjective /ˈtɜːrbjələnt/

turbulent

turbulento
Meaning
Characterized by conflict, disorder, or confusion; not stable or calm.
Example
The country went through a turbulent period of political change.
El país pasó por un período turbulento de cambio político.
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.
C1 adjective /ˌdɪktəˈtɔːriəl/

dictatorial

dictatorial
Meaning
Having or showing a tendency to tell people what to do in an autocratic way.
Example
His dictatorial style made him unpopular among colleagues.
Su estilo dictatorial lo hizo impopular entre los compañeros de trabajo.
C1 adjective /əˌpɒk.əˈlɪp.tɪk/

apocalyptic

apocalíptico
Meaning
Describing the end of the world, or something catastrophic and disastrous.
Example
The movie depicts an apocalyptic future after a nuclear war.
La película describe un futuro apocalíptico después de una guerra nuclear.
C1 adjective /ˈsʌn.dri/

sundry

diverso
Meaning
Various or miscellaneous.
Example
The shop sells fruits, clothes, and sundry items.
La tienda vende frutas, ropa y varios artículos.
C1 adjective ˌbjʊə.rəˈkræt.ɪk

bureaucratic

burocrático
Meaning
Involving or characterized by complex rules and procedures that can delay the achievement of goals.
Example
Bureaucratic red tape often delays project approvals.
La burocracia a menudo retrasa la aprobación de proyectos.
C1 adjective ɪnˈdel.ə.bəl

indelible

indeleble
Meaning
Making marks that cannot be removed; impossible to forget or remove.
Example
Her speech left an indelible mark on the audience.
Su discurso dejó una marca indeleble en la audiencia.
C1 noun /ˈtɛmptər/

tempter

tentador
Meaning
a person or thing that entices someone into doing something wrong
Example
The tempter whispered false promises into his ear.
El tentador susurró falsas promesas en su oído.
C1 noun /suˈpriː.mə.si/

Supremacy

supremacía; autoridad o poder más alto
Meaning
the state of being supreme; highest authority or power
Example
The country established naval supremacy in the region.
El país estableció supremacía naval en la región.
C1 verb /ˈɪmplɪˌkeɪt/

implicate

implicar
Meaning
To show someone’s involvement in a crime or wrongdoing.
Example
The evidence implicated several officials in the scandal.
La evidencia implicó a varios funcionarios en el escándalo.
C1 noun /flæt fɪʃ/

Flat fish

pez plano
Meaning
a type of fish with a flattened body that lives on the sea floor
Example
Flat fish like sole and flounder are excellent for grilling.
Los peces planos como el lenguado y el platija son excelentes para asar a la parrilla.
C1 noun /məˈtɪəriəlɪzəm/

Materialism

materialismo
Meaning
A tendency to consider material possessions more important than spiritual values
Example
The rise of materialism in modern society concerns many philosophers.
El auge del materialismo en la sociedad moderna preocupa a muchos filósofos.
C1 noun /məˈleɪz/

malaise

malestar
Meaning
a general feeling of discomfort, illness, or unease whose exact cause is difficult to identify
Example
After the long journey, she felt a general malaise.
Después del largo viaje, ella sintió un malestar general.
C1 adjective /ˈhɑːrdi/

hardy

resistente, robusto
Meaning
Strong, robust, and capable of enduring difficult conditions.
Example
Hardy plants can survive the harsh winter.
Las plantas resistentes pueden sobrevivir al invierno severo.
C1 verb /ˈdæb.əl/

dabble

incursionar
Meaning
To take part in an activity in a casual or superficial way.
Example
He dabbled in painting during his college days.
Él dabbleó en la pintura durante sus días en la universidad.
C1 verb /dɪˈspɜːrs/

disperse

dispersar
Meaning
To scatter or spread widely in different directions.
Example
The police used tear gas to disperse the crowd.
La policía usó gas lacrimógeno para dispersar a la multitud.
C1 verb /ˈlɛdʒɪsˌleɪt/

legislate

legislar
Meaning
to make or enact laws
Example
The government plans to legislate new safety standards.
El gobierno planea legislar nuevos estándares de seguridad.
C1 adjective /dɪˈmɛntɪd/

demented

demente / irracional
Meaning
behaving irrationally due to mental illness or extreme excitement
Example
He looked demented after hearing the shocking news.
Se veía demente después de escuchar la noticia impactante.
C1 adjective /ˈvɪrjʊlənt/

virulent

sumamente dañino
Meaning
Extremely severe or harmful in its effects.
Example
The virulent disease spread rapidly across the region.
La enfermedad virulenta se extendió rápidamente por la región.
C1 noun /ˌdʒenəˈræləti/

generality

generalidad
Meaning
A vague, non-specific statement or principle that applies broadly.
Example
The speech was full of generalities and lacked concrete details.
El discurso estaba lleno de generalidades y carecía de detalles concretos.
C1 verb ˌsɝː.kəmˈvent

circumvent

evitar hábilmente o encontrar una manera de eludir obstáculos o reglas
Meaning
To cleverly avoid or find a way around obstacles or rules.
Example
He tried to circumvent the security system.
Él intentó eludir el sistema de seguridad.
C1 adjective /ˈliː.θəl/

Lethal

letal; mortal;
Meaning
deadly; fatal; capable of causing death
Example
The snake's venom is lethal to humans if not treated immediately.
El veneno de la serpiente es letal para los humanos si no se trata inmediatamente.
C1 noun /pəˈraɪə/

pariah

paria
Meaning
An outcast; someone who is rejected by society or a social group.
Example
After the scandal, he became a social pariah.
Después del escándalo, se convirtió en un paria social.
C1 adjective /ɪnˈɡroʊst/

engrossed

absorto
Meaning
completely absorbed or deeply involved in something
Example
She was so engrossed in the book that she forgot the time.
Ella estaba tan absorta en el libro que olvidó la hora.
C1 noun /ˈkriː.dəns/

credence

creencia, aceptación
Meaning
belief in or acceptance of something as true
Example
The witness gave credence to the defendant's alibi.
El testigo dio credibilidad a la coartada del acusado.
C1 noun dʒəˈnɛt.ɪk ˌmɒd.ɪ.fɪˈkeɪ.ʃən

genetic modification

modificación genética
Meaning
The process of altering the genetic code of plants or animals.
Example
Genetic modification enhances crop resistance to pests and diseases.
La modificación genética mejora la resistencia de los cultivos a plagas y enfermedades.
C1 noun /bəˈtæljən/

battalion

batallón
Meaning
A large body of soldiers ready for battle, typically consisting of several companies.
Example
The battalion was deployed to the front line.
El batallón fue desplegado a la línea del frente.
C1 noun /ˈnaɪt.hʊd/

knighthood

caballerosidad
Meaning
The rank or dignity of a knight, or the ceremony of conferring knighthood.
Example
He was honored with knighthood for his contributions to science.
Fue honrado con la caballerosidad por sus contribuciones a la ciencia.
C1 noun ɪˌræʃ.ənˈæl.ɪ.ti

irrationality

irracionalidad, falta de lógica, irrazonabilidad
Meaning
The quality of being illogical or unreasonable; lack of rational thought.
Example
His decision was driven by complete irrationality.
Su decisión fue impulsada por una irracionalidad completa.
C1 noun/adjective /klɛft/

cleft

grieta
Meaning
a split or crack; a space or opening made by cleavage
Example
The goat disappeared into a cleft in the rocks.
La cabra desapareció en una grieta en las rocas.
C1 adjective /kweɪnt/

quaint

antiguo y pintoresco
Meaning
attractively unusual or old-fashioned
Example
They stayed in a quaint little cottage by the sea.
Ellos se alojaron en una cabaña pintoresca junto al mar.
C1 noun ˈlaɪv.li.hʊd

livelihood

sustento
Meaning
A means of securing the necessities of life; a way of making a living.
Example
Fishing is the primary livelihood of coastal communities.
La pesca es el sustento principal de las comunidades costeras.
C1 adverb /əˈlɒft/

aloft

en el aire
Meaning
Up in or into the air; overhead.
Example
The kite was flying aloft in the clear sky.
La cometa volaba alto en el cielo claro.
C1 noun prəˈpʌl.ʃən

propulsion

propulsión
Meaning
The action of driving or pushing forward.
Example
Jet engines provide propulsion for aircraft to travel long distances.
Los motores a reacción proporcionan propulsión a las aeronaves para viajar largas distancias.
C1 adjective /ˈplʌk.i/

plucky

valiente
Meaning
having or showing courage and determination
Example
The plucky child rescued the kitten from the tree.
El niño valiente rescató al gatito del árbol.
C1 noun /ˈnɜr.tʃər/

Nurture

nutrición
Meaning
the process of caring for and encouraging growth or development
Example
Good parenting involves both nature and nurture.
La buena crianza involucra tanto la naturaleza como la nutrición.
C1 noun /ˈmɒn.ɑːk/

Monarch

monarca
Meaning
a sovereign ruler, especially a king or queen
Example
The monarch addressed the nation on television.
El monarca dirigió la nación en la televisión.
C1 noun ˈpɛd.ə.ɡɒ.dʒi

pedagogy

pedagogía
Meaning
The method and practice of teaching, especially as an academic subject or theoretical concept.
Example
Modern pedagogy focuses on student-centered learning.
La pedagogía moderna se centra en el aprendizaje centrado en el estudiante.
C1 noun /pərˈvɜːrʒən/

perversion

perversión
Meaning
The act of distorting or corrupting the original meaning, purpose, or state of something.
Example
The regime’s censorship was seen as a perversion of free speech.
La censura del régimen se consideró una perversión de la libertad de expresión.
C1 noun /əˈstrɑː.lə.dʒər/

Astrologer

astrólogo
Meaning
a person who studies astrology and makes predictions based on the positions of stars and planets
Example
The astrologer predicted good fortune in her future.
El astrólogo predijo buena suerte en su futuro.
C1 noun ˌvɛn.əˈreɪ.ʃən

veneration

veneración
Meaning
Great respect; reverence; the action of regarding with great respect or reverence.
Example
Many cultures show veneration for their ancestors.
Muchas culturas muestran veneración por sus antepasados.
C1 noun /ˈfɔːrdʒər/

forger

falsificador
Meaning
a person who makes fake documents, artworks, or signatures
Example
The police arrested a forger who had been selling counterfeit paintings.
La policía arrestó a un falsificador que había estado vendiendo pinturas falsas.
C1 adjective ˈfæʃ.ɪst

fascist

fascista
Meaning
Relating to or characteristic of fascism; extremely authoritarian.
Example
Fascist governance undermines freedom.
El gobierno fascista socava la libertad.
C1 adjective /ˈpʌlməˌneri/

pulmonary

pulmonar
Meaning
relating to the lungs
Example
The patient suffered from a serious pulmonary infection.
El paciente sufrió una grave infección pulmonar.
C1 noun /rɪˈspɒnsɪvnəs/

responsiveness

sensibilidad
Meaning
The quality of reacting quickly and positively
Example
The manager appreciated her responsiveness to customer feedback.
El gerente apreció su sensibilidad ante los comentarios de los clientes.
C1 verb /tʃæsˈtaɪz/

chastise

criticar severamente / castigar severamente
Meaning
to criticize or punish severely
Example
The teacher chastised the student for being late.
El maestro reprendió al estudiante por llegar tarde.
C1 noun /ˈmoʊ.tər ˈlɔː.ri/

Motor lorry

camión motorizado
Meaning
a large motor vehicle used for transporting goods; truck
Example
The motor lorry delivered fresh vegetables to the market.
El camión motorizado entregó verduras frescas al mercado.
C1 adjective /ʌnˈtaɪmli/

Untimely

precipitado
Meaning
happening at an inappropriate or inconvenient time; premature
Example
His untimely death at the age of thirty shocked everyone.
Su muerte precipitada a la edad de treinta años sorprendió a todos.
C1 adjective /ˈpruː.dənt/

Prudent

prudente; cauteloso; sabio;
Meaning
wise; careful; cautious;
Example
It's prudent to save money for the future.
Es prudente ahorrar dinero para el futuro.
C1 noun /ˈkɒmən kɑːp/

Common Carp

carpa común
Meaning
A large freshwater fish widely cultivated for food
Example
Common carp is an important fish in aquaculture.
La carpa común es un pez importante en la acuicultura.
C1 noun ˌpraɪɔːrɪtaɪˈzeɪʃən

prioritization

priorización
Meaning
The action or process of deciding the relative importance or urgency of things.
Example
Effective prioritization ensures resources are used efficiently.
Una priorización efectiva asegura que los recursos se utilicen de manera eficiente.
C1 noun kəˈmjuːnɪti ˈsɜːrvɪs aɪˈdiːəlz

community service ideals

ideales de servicio comunitario
Meaning
Principles and standards of serving the community for social good.
Example
Community service ideals must be taught in schools.
Los ideales de servicio comunitario deben enseñarse en las escuelas.
C1 adjective /bəˈzɜːrk/

berserk

enloquecido
Meaning
Out of control with anger or excitement; wild or frenzied.
Example
The fans went berserk when their team won the championship.
Los fanáticos se volvieron enloquecidos cuando su equipo ganó el campeonato.
C1 verb /ˈʃrɪvəl/

shrivel

arrugar
Meaning
To become dry, wrinkled, and smaller due to lack of moisture.
Example
The flowers shriveled under the hot sun.
Las flores se arrugaron bajo el sol caliente.
C1 verb /dɪsˈkwɑːlɪfaɪ/

disqualify

descalificar
Meaning
to officially prevent someone from participating or being eligible
Example
The referee decided to disqualify the player for cheating.
El árbitro decidió descalificar al jugador por hacer trampa.
C1 adjective /ˈfɛrəl/

feral

salvaje
Meaning
existing in a wild or untamed state; not domesticated
Example
The feral cat roamed the streets at night.
El gato salvaje rondaba por las calles por la noche.
C1 adjective dɪsˈfʌŋkʃənl

dysfunctional

disfuncional
Meaning
Not operating normally or properly.
Example
The dysfunctional system led to numerous delays and errors.
El sistema disfuncional causó numerosos retrasos y errores.
C1 adjective /kɪˈnɛtɪk/

kinetic

cinético
Meaning
Relating to or resulting from motion.
Example
Kinetic energy increases as the object moves faster.
La energía cinética aumenta a medida que el objeto se mueve más rápido.
C1 noun/verb /ˈɡlɪmər/

glimmer

un resplandor débil
Meaning
A faint or wavering light; to shine with a faint light.
Example
A glimmer of hope shone in her eyes.
Un resplandor de esperanza brilló en sus ojos.
C1 verb /ˌɪntərˈsɛpt/

intercept

interceptar
Meaning
to stop, catch, or seize something on its way from one place to another
Example
The police intercepted the stolen car before it crossed the border.
La policía interceptó el coche robado antes de que cruzara la frontera.
C1 adjective /ˌɪnɑːrˈtɪkjʊlət/

inarticulate

inarticulado
Meaning
Unable to express oneself clearly or effectively in speech or writing.
Example
She became inarticulate with emotion during the speech.
Ella se volvió inarticulada con emoción durante el discurso.
C1 verb /ˈnuːtər/

neuter

esterilizar
Meaning
To remove the reproductive organs of an animal; or having no gender.
Example
They decided to neuter their cat to prevent more kittens.
Decidieron esterilizar a su gato para evitar más gatitos.
C1 adjective /dɪˈraɪsɪv/

derisive

despectivo
Meaning
Expressing contempt or ridicule.
Example
She gave a derisive laugh at his attempt to sing.
Ella dio una risa despectiva ante su intento de cantar.
C1 noun /ɒpˈtɒmətri/

optometry

optometría
Meaning
The practice or profession of examining the eyes and prescribing corrective lenses.
Example
She studied optometry at the university to become an eye specialist.
Estudió optometría en la universidad para convertirse en especialista en ojos.
C1 verb /ˈkɒnsɔːrt/

consort

compañero, consorte real
Meaning
To associate with someone, typically with disapproval; also, a spouse of a reigning monarch.
Example
He was criticized for consorting with criminals.
Fue criticado por asociarse con criminales.
C1 noun /ˌdiː.kɒmpəˈzɪʃən/

decomposition

descomposición
Meaning
the process of decaying or breaking down into simpler parts
Example
The decomposition of leaves enriches the soil.
La descomposición de las hojas enriquece el suelo.
C1 adjective /ˈpɛnɪtənt/

penitent

arrepentido
Meaning
Feeling or showing sorrow and regret for having done wrong.
Example
She was penitent after shouting at her friend.
Ella estaba arrepentida después de gritarle a su amiga.
C1 noun /ˈskɛptɪk/

skeptic

escéptico
Meaning
A person who doubts or questions accepted beliefs or claims.
Example
The scientist was a skeptic of theories without solid evidence.
El científico era escéptico de las teorías sin evidencia sólida.
C1 adjective /rɪˈflek.sɪv/

Reflexive

reflexivo; introspectivo
Meaning
directed back on itself; showing deep thought about oneself
Example
She became more reflexive about her behavior after the feedback.
Ella se volvió más reflexiva sobre su comportamiento después de la retroalimentación.
C1 verb ˌæs.ɚˈteɪn

ascertain

verificar
Meaning
To find out or discover something with certainty; to verify.
Example
The police tried to ascertain the cause of the accident.
La policía intentó verificar la causa del accidente.
C1 adjective /ˌwɛlˈbrɛd/

well-bred

bien educado
Meaning
Having or showing good manners; properly raised.
Example
She is a well-bred young lady with excellent manners.
Ella es una joven bien educada con excelentes modales.
C1 noun ˈpær.ə.daɪm

paradigm

paradigma
Meaning
A typical example or pattern of something; a model or framework for understanding or approaching something.
Example
The paradigm of education is changing with digital technology.
El paradigma de la educación está cambiando con la tecnología digital.
C1 adverb /əˈbrɛst/

abreast

lado a lado
Meaning
side by side and facing the same direction; informed about something
Example
The soldiers marched two abreast down the street.
Los soldados marcharon dos lado a lado por la calle.
C1 noun /ɪkˈstɔːr.ʃən/

extortion

extorsión
Meaning
the practice of obtaining something, especially money, through force or threats
Example
The businessman was arrested for extortion after threatening his partner.
El empresario fue arrestado por extorsión después de amenazar a su socio.
C1 adjective /ˈstɛriəˌtaɪpt/

stereotyped

estereotipado
Meaning
Conforming to a fixed or oversimplified idea of what someone or something is like.
Example
His stereotyped jokes failed to impress the audience.
Sus chistes estereotipados no lograron impresionar a la audiencia.
C1 noun /pɪˌdɛs.tri.ə.naɪˈzeɪ.ʃən/

pedestrianization

peatonalización
Meaning
Making areas pedestrian-friendly, closing any area to vehicle traffic and making it open only for pedestrians.
Example
The pedestrianization of city centers reduces pollution.
La peatonalización de los centros urbanos reduce la contaminación.
C1 noun /ˈtaɪ.rənt/

Tyrant

tirano
Meaning
a cruel and oppressive ruler; a person who exercises power in a harsh manner
Example
The people rebelled against the cruel tyrant.
La gente se rebeló contra el cruel tirano.
C1 verb /ˌmɪsˈpleɪs/

misplace

poner en el lugar equivocado
Meaning
To put something in the wrong location and temporarily lose it.
Example
I often misplace my keys when I am in a hurry.
A menudo pongo mis llaves en el lugar equivocado cuando tengo prisa.
C1 noun ˈdɛf.ər.əns

deference

deferencia
Meaning
Humble submission and respect.
Example
He showed deference to his elderly mentor.
Él mostró deferencia hacia su mentor mayor.
C1 noun /ˌfəʊtəʊˈsɪnθɛtɪk ɪˈfɪʃənsi/

photosynthetic efficiency

eficiencia fotosintética
Meaning
The measure of how effectively plants convert light energy into chemical energy through the process of photosynthesis, directly affecting plant growth and crop yield.
Example
Improving photosynthetic efficiency can increase crop yields.
Mejorar la eficiencia fotosintética puede aumentar los rendimientos de los cultivos.
C1 adjective /ˌʌnɪmˈplɔɪəbəl/

unemployable

desempleable
Meaning
Not able to be employed; lacking the skills or qualities necessary for employment
Example
Due to his criminal record, he was considered unemployable in most companies.
Debido a su historial criminal, fue considerado desempleable en la mayoría de las empresas.
C1 verb /ɪmˈpɒvərɪʃ/

impoverish

empobrecer
Meaning
To make someone poor or reduce the quality or richness of something.
Example
The long war impoverished the entire nation.
La larga guerra empobreció a toda la nación.
C1 noun /ˈsɜːrəɡət/

surrogate

sustituto
Meaning
A substitute, especially a person deputizing for another in a specific role or office.
Example
The surrogate mother gave birth to the child after carrying it for nine months.
La madre sustituta dio a luz al niño tras llevarlo durante nueve meses.
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 adjective /vɜːrˈboʊs/

verbose

verborroso
Meaning
Using or expressed in more words than are needed; wordy.
Example
His verbose explanation confused the audience instead of clarifying the issue.
Su explicación verborrosa confundió a la audiencia en lugar de aclarar el problema.
C1 verb /riˈɪtəreɪt/

reiterate

reiterar
Meaning
To say something again or repeatedly for emphasis or clarity.
Example
The teacher reiterated the importance of honesty.
El maestro reiteró la importancia de la honestidad.
C1 noun /ˈɒf.sprɪŋ/

offspring

descendencia
Meaning
a person's child or children; an animal's young
Example
The bird carefully fed its offspring.
El pájaro alimentó cuidadosamente a su descendencia.
C1 verb /ʃɜːrk/

shirk

evitar
Meaning
to avoid or neglect a duty or responsibility
Example
He always tries to shirk his responsibilities at work.
Él siempre trata de evitar sus responsabilidades en el trabajo.
C1 noun dɪˈpliː.ʃən

depletion

agotamiento
Meaning
The gradual reduction or exhaustion of a resource or substance.
Example
Overuse of groundwater leads to depletion of water resources.
El uso excesivo de agua subterránea conduce a la depleción de los recursos hídricos.
C1 adjective /məˈtɪk.jə.ləs/

meticulous

Extremadamente cuidadoso y preciso en la atención al detalle
Meaning
Extremely careful and precise in attention to detail
Example
A meticulous researcher checks every detail before publishing.
Un investigador meticuloso revisa cada detalle antes de publicar.
C1 adjective /ɪnˈstrʌktɪv/

instructive

instructivo
Meaning
useful and informative; providing knowledge or instruction
Example
The lecture was highly instructive and engaging.
La conferencia fue muy instructiva y atractiva.
C1 adjective /ˈbrɪtl/

brittle

quebradizo
Meaning
easily broken or cracked; hard but liable to break
Example
The glass was so brittle that it cracked easily.
El cristal era tan quebradizo que se rompió fácilmente.
C1 noun /ˈɡreɪ.haʊnd/

Greyhound

galgo
Meaning
a tall, thin dog with long legs that can run very fast
Example
The greyhound won the race at the dog track.
El galgo ganó la carrera en la pista de perros.
C1 adjective /ˌʌnəˈdɔːrnd/

unadorned

sencillo, sin adornos
Meaning
Plain and simple; not decorated.
Example
The room was unadorned, with only a table and a chair.
La habitación estaba sencilla, con solo una mesa y una silla.
C1 noun ˌsæn.ɪ.taɪˈzeɪ.ʃən

sanitization

sanitización
Meaning
The process of cleaning and disinfecting to eliminate germs and bacteria.
Example
Regular sanitization keeps appliances germ-free.
La sanitización regular mantiene los aparatos libres de gérmenes.
C1 noun /ˌspɒn.təˈneɪ.ɪ.ti/

spontaneity

espontaneidad
Meaning
The quality of being spontaneous; natural and unplanned behavior.
Example
His spontaneity makes him a great conversationalist.
Su espontaneidad lo convierte en un gran conversador.
C1 verb /ɪˈdʒɛkt/

eject

echar fuera
Meaning
to force someone or something out, usually from a place or position
Example
The referee had to eject the player for unsportsmanlike behavior.
El árbitro tuvo que ejectar al jugador por conducta antideportiva.
C1 adjective /tɛkˈtɑː.nɪk/

tectonic

tectónico
Meaning
Relating to the structure of the earth's crust and the large-scale processes that take place within it.
Example
Tectonic movements cause earthquakes and mountain formation.
Los movimientos tectónicos causan terremotos y formación de montañas.
C1 adjective পারসিভেবল

perceivable

perceptible
Meaning
Able to be seen, noticed, or detected.
Example
The changes in winter weather are perceivable in rural areas.
Los cambios en el clima invernal son perceptibles en las áreas rurales.
C1 noun /ˈæl.kə.laɪ/

alkali

alcalino
Meaning
a soluble base substance, typically with a pH greater than 7, that neutralizes acids
Example
Soap contains alkali which helps remove grease.
El jabón contiene alcalino que ayuda a quitar la grasa.
C1 noun /krʌst/

crust

corteza
Meaning
the hard outer surface of something, especially bread or the Earth's outer layer
Example
He cut off the crust of the bread before eating.
Cortó la corteza del pan antes de comer.
C1 adjective ɪˈroʊ.ni.əs

erroneous

erróneo, incorrecto
Meaning
Wrong; incorrect.
Example
His assumptions were completely erroneous.
Sus suposiciones eran completamente erróneas.
C1 verb /blɛər/

blare

hacer un ruido fuerte
Meaning
to make a loud, harsh sound
Example
The car horns blared all night.
Las bocinas del coche sonaron toda la noche.
C1 adjective /haɪˈdrɔːlɪk/

hydraulic

hidráulico
Meaning
operated by the pressure of liquid, especially water or oil
Example
The mechanic repaired the hydraulic system of the machine.
El mecánico reparó el sistema hidráulico de la máquina.
C1 adjective /ˌmet.əˈbɒl.ɪk/

metabolic

metabólico
Meaning
Relating to the chemical processes that occur within a living organism in order to maintain life.
Example
Regular exercise enhances metabolic efficiency.
El ejercicio regular mejora la eficiencia metabólica.
C1 adjective /ˈkwɑː.rəl.səm/

Quarrelsome

pendenciero; belicoso; argumentativo
Meaning
given to arguing and fighting; argumentative and confrontational
Example
His quarrelsome nature makes it difficult to work with him.
Su naturaleza pendenciera hace que sea difícil trabajar con él.
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 /ˈkɜːrsəri/

cursory

superficial
Meaning
Hasty and therefore not thorough or detailed.
Example
He gave the report only a cursory glance before the meeting.
Él echó un vistazo superficial al informe antes de la reunión.
C1 noun /ˈwɒrənt/

Warrant

orden judicial
Meaning
a legal document that gives police the authority to do something; justification or authority for an action
Example
The police obtained a search warrant before entering the building.
La policía obtuvo una orden de registro antes de entrar en el edificio.
C1 verb /ɪˈluːmɪneɪt/

illuminate

iluminar
Meaning
To light up or make something clearer.
Example
Streetlights illuminate the road at night.
Las farolas iluminan la carretera de noche.
C1 noun /əˌsæsɪˈneɪʃən/

assassination

asesinato
Meaning
The act of killing someone important, often for political or ideological reasons.
Example
The assassination of the president shocked the nation.
El asesinato del presidente conmocionó a la nación.
C1 adjective /səˈriːn/

serene

sereno y pacífico
Meaning
Calm, peaceful, and untroubled; tranquil.
Example
The lake had a serene and peaceful atmosphere.
El lago tenía una atmósfera serena y pacífica.
C1 noun /ˌprɑːfɪˈtɪr/

profiteer

especulador
Meaning
a person who makes excessive profits, especially unfairly or illegally
Example
The government punished war profiteers.
El gobierno castigó a los especuladores de la guerra.
C1 adjective /ˌdɪsɪnˈdʒɛnjʊəs/

disingenuous

falso
Meaning
not candid or sincere; giving a false appearance of honesty or openness
Example
She gave a disingenuous excuse for missing the meeting.
Ella dio una excusa falsa por no asistir a la reunión.
C1 noun /ˈmɔːr.ɡɪʤ/

Mortgage

hipoteca
Meaning
a legal agreement by which a bank lends money to buy property
Example
They took out a mortgage to buy their first house.
Tomaron una hipoteca para comprar su primera casa.