sinus
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C1 noun /ˈsaɪnəs/

sinus

seno
Meaning
A cavity within a bone or tissue, especially those in the bones of the face connected with the nasal cavities.
Example
He suffered from a sinus infection that caused headaches.
Él sufrió de una infección sinusal que le causó dolor de cabeza.
C1 verb /rɪˈdʒɛnəreɪt/

regenerate

regenerar
Meaning
to grow or produce again; to renew or restore
Example
The lizard can regenerate its lost tail.
El lagarto puede regenerar su cola perdida.
C1 noun /ˈskwɒtər/

squatter

ocupante ilegal
Meaning
a person who unlawfully occupies an uninhabited building or unused land
Example
The police removed the squatters from the abandoned house.
La policía sacó a los ocupantes ilegales de la casa abandonada.
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 adjective /kəmˈpʌlsɪv/

compulsive

compulsivo
Meaning
Resulting from or acting on an irresistible urge, especially one that is against one's conscious wishes.
Example
He is a compulsive gambler who cannot stop placing bets.
Él es un jugador compulsivo que no puede dejar de apostar.
C1 adjective /ˈsaɪt.ləs/

Sightless

ciego; sin visión
Meaning
unable to see; blind; lacking vision
Example
The sightless man navigated the street with his guide dog.
El hombre ciego navegó por la calle con su perro guía.
C1 adjective /pəˈfʌŋk.tər.i/

perfunctory

superficial
Meaning
done without much effort, interest, or thought
Example
He gave a perfunctory nod and walked away.
Él hizo un gesto superficial y se alejó.
C1 adjective /əˈtjuːnd/

attuned

ajustado / sensible
Meaning
Being receptive or sensitive to something; well adjusted or in harmony.
Example
She is attuned to the needs of her students.
Ella está ajustada a las necesidades de sus estudiantes.
C1 noun ˈflɔː.rə ænd ˈfɔː.nə

flora and fauna

flora y fauna
Meaning
The plants and animals of a particular region, habitat, or geological period.
Example
The Galápagos Islands have unique flora and fauna.
Las Islas Galápagos tienen una flora y fauna únicas.
C1 noun /ˌsɛnsəˈbɪləti/

Sensibility

sensibilidad
Meaning
the ability to appreciate and respond to complex emotional or aesthetic influences; sensitivity
Example
Her artistic sensibility made her appreciate fine details in paintings.
Su sensibilidad artística la hizo apreciar los detalles finos en las pinturas.
C1 noun /ˈmɑː.kɪt ˌpen.ɪˈtreɪ.ʃən/

Market Penetration

penetración de mercado
Meaning
A measure of the amount of sales or adoption of a product or service compared to the total theoretical market for that product or service.
Example
High market penetration ensures competitive dominance.
Una alta penetración de mercado asegura dominancia competitiva.
C1 adjective /ʌnˈmænɪdʒəbəl/

Unmanageable

incontrolable; fuera de control
Meaning
difficult or impossible to control or handle
Example
The large class became unmanageable without proper supervision.
La gran clase se volvió incontrolable sin una supervisión adecuada.
C1 noun /jiːst/

Yeast

levadura
Meaning
microorganisms used in baking and brewing to cause fermentation
Example
Add yeast to the flour to make the bread rise.
Añade levadura a la harina para hacer que el pan suba.
C1 noun ˌpriː.dɪs.pəˈzɪʃ.ən

predisposition

predisposición
Meaning
A natural tendency or inclination toward a particular behavior or condition.
Example
Genetic factors can influence a person's predisposition to diseases.
Los factores genéticos pueden influir en la predisposición de una persona a las enfermedades.
C1 noun /ˈkʌn.stə.bəl/

constable

agente
Meaning
a police officer of the lowest rank
Example
The constable directed traffic at the busy intersection.
El agente dirigió el tráfico en la intersección concurrida.
C1 verb /ˈdʒɪtər/

jitter

temblar
Meaning
to shake or tremble slightly, often from fear, nervousness, or excitement
Example
He began to jitter nervously before giving his speech.
Comenzó a temblar nerviosamente antes de dar su discurso.
C1 adjective /ˈbeɪs.ləs/

Baseless

sin fundamento; infundado; sin base
Meaning
without foundation; groundless; unfounded
Example
The accusations against him were completely baseless.
Las acusaciones contra él eran completamente infundadas.
C1 noun /ˌkɒnstəˈneɪʃən/

consternation

consternación
Meaning
A feeling of anxiety, dismay, or confusion, often caused by something unexpected.
Example
The sudden announcement caused widespread consternation among the employees.
El anuncio repentino causó una consternación generalizada entre los empleados
C1 verb /ˌʌndərˈsɛl/

undersell

vender a un precio más bajo
Meaning
to sell something at a lower price than competitors or to downplay the value of something
Example
The shop undersold its rivals by offering huge discounts.
La tienda vendió a sus rivales a un precio más bajo ofreciendo grandes descuentos.
C1 adjective /ˌɪndɪˈsaɪsɪv/

Indecisive

indeciso
Meaning
unable to make decisions quickly; hesitant; wavering
Example
She was indecisive about which university to attend.
Ella estaba indecisa sobre qué universidad asistir.
C1 noun /rɪˈzʌmp.ʃən/

Resumption

reanudar
Meaning
the action of beginning something again after a pause or interruption
Example
The resumption of classes will be announced next week.
La reanudación de las clases será anunciada la próxima semana.
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.
C1 noun /ˈfjʊərɔːr/

furor

alboroto
Meaning
An outbreak of public anger or excitement.
Example
The politician's remarks created a furor in the media.
Los comentarios del político crearon un furor en los medios.
C1 noun /ɪnˈtruː.ʒən/

intrusion

intrusión no autorizada
Meaning
Unauthorized entry into a system or place without permission
Example
The company detected an intrusion in its server.
La empresa detectó una intrusión en su servidor.
C1 adjective /kɔɪ/

coy

tímido, reservado
Meaning
reluctant to give details or reveal feelings; shy or reserved
Example
She gave a coy smile when asked about her plans.
Ella dio una sonrisa tímida cuando le preguntaron sobre sus planes.
C1 noun /ˌdʒɛr.iˈætrɪks/

geriatrics

geriatría
Meaning
the branch of medicine dealing with the health and care of old people
Example
He specialized in geriatrics to care for the elderly.
Él se especializó en geriatría para cuidar a los ancianos.
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 /mɒb/

Mob

multitud; un grupo que actúa de manera violenta
Meaning
a large crowd of people; a group that acts in a violent way
Example
An angry mob gathered outside the building.
Una multitud enfadada se reunió fuera del edificio.
C1 adjective /fəˈnætɪk/

Fanatic

fanático
Meaning
extremely passionate about something; showing excessive enthusiasm or devotion
Example
He is a fanatic supporter of his football team.
Él es un fanático seguidor de su equipo de fútbol.
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 məˌtɪərɪəˈlɪstɪk ˈlaɪfstaɪl

materialistic lifestyle

estilo de vida materialista
Meaning
A way of living focused on acquiring material possessions and wealth.
Example
A materialistic lifestyle often leads to moral decline.
Un estilo de vida materialista a menudo lleva al declive moral.
C1 adjective /ˌkɒmprɪˈhɛnsəbl/

comprehensible

comprensible
Meaning
able to be understood; intelligible
Example
The teacher explained the topic in a comprehensible way.
El maestro explicó el tema de una manera comprensible.
C1 noun /ˈhɑː.stɪdʒ/

Hostage

rehén
Meaning
a person seized or held as security for the fulfillment of a condition; captive
Example
The police negotiated carefully to secure the release of all hostages unharmed.
La policía negoció cuidadosamente para asegurar la liberación de todos los rehenes sin daño alguno.
C1 adjective /ɑːrˈkeɪn/

arcane

arcano
Meaning
understood by few; mysterious or secret
Example
The professor’s lecture was full of arcane details that only specialists could follow.
La conferencia del profesor estaba llena de detalles arcanos que solo los especialistas podían seguir.
C1 noun /ˌmiːdɪˈeɪʃən/

mediation

mediación
Meaning
Intervention between parties to promote reconciliation, settlement, or compromise.
Example
The mediation helped resolve the conflict between the two teams.
La mediación ayudó a resolver el conflicto entre los dos equipos.
C1 noun /ˈsɪvɪks/

civics

educación cívica
Meaning
the study of the rights and duties of citizens and how government works
Example
Civics helps students understand their responsibilities as citizens.
La educación cívica ayuda a los estudiantes a entender sus deberes como ciudadanos.
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.
C1 verb /ˈɡræpəl/

grapple

luchar, pelear
Meaning
to struggle or wrestle with something, often a problem or opponent
Example
The company is grappling with financial difficulties.
La compañía está luchando con dificultades financieras.
C1 adjective /ɪmˈpæʃənd/

impassioned

apasionado
Meaning
Filled with or showing great emotion.
Example
She gave an impassioned speech about human rights.
Ella dio un discurso apasionado sobre los derechos humanos.
C1 noun /əˈsɛnʃən/

ascension

ascensión
Meaning
The act of rising or going up, often to an important position or a higher place.
Example
His rapid ascension in the company surprised everyone.
Su rápida ascensión en la empresa sorprendió a todos.
C1 noun /pɜːrl drɒp/

Pearl drop

gota de perla
Meaning
a single pearl used as jewelry, often in earrings or pendants
Example
The elegant pearl drop earrings complemented her outfit perfectly.
Los elegantes pendientes de gota de perla complementaron su atuendo perfectamente.
C1 noun ˈθɜː.məl stres

thermal stress

estrés térmico
Meaning
Stress caused by excessive heat that affects plant growth and development.
Example
High thermal stress affects plant growth.
El estrés térmico afecta el crecimiento de las plantas.
C1 noun /ˈpriːˌæmbəl/

preamble

preámbulo
Meaning
a preliminary statement, especially the introduction to a formal document
Example
The preamble of the constitution outlines its guiding principles.
El preámbulo de la constitución describe sus principios fundamentales.
C1 noun /pʌnˈdʒɑː.bi/

Punjabi

punyabi
Meaning
a traditional long shirt worn in South Asia, typically loose-fitting
Example
He wore a white punjabi for the festival celebration.
Él usó un punyabi blanco para la celebración del festival.
C1 noun /ˈbuːt.stræp.ɪŋ/

bootstrapping

autofinanciamiento
Meaning
Starting a business with personal resources or small investments without external funding or venture capital.
Example
Many entrepreneurs rely on bootstrapping to launch their businesses.
Muchos emprendedores dependen del bootstrapping para lanzar sus negocios.
C1 verb /nɪp/

nip

pellizcar
Meaning
to pinch or bite lightly; to move quickly
Example
The cold wind nipped at my face.
El viento frío me pellizcó la cara.
C1 noun /ˈsɪndɪkət/

syndicate

sindicato
Meaning
A group of individuals or organizations combined to promote a common interest or carry out a business venture.
Example
A syndicate of investors bought the struggling company.
Un sindicato de inversores compró la empresa en apuros.
C1 noun /kəˈres/

Caress

caricia
Meaning
a gentle or loving touch
Example
The mother's gentle caress calmed the crying baby.
El suave cariño de la madre calmó al bebé llorando.
C1 noun /ˌrev.əˈluː.ʃən.ər.i ˈbreɪk.θruː/

revolutionary breakthrough

descubrimiento revolucionario
Meaning
A sudden, dramatic, and important discovery or development that changes everything.
Example
Robotic surgery is a revolutionary breakthrough in healthcare.
La cirugía robótica es un descubrimiento revolucionario en la atención sanitaria.
C1 noun /plʊəˈrælɪti/

plurality

pluralidad o mayoría
Meaning
the state of being multiple; the greater part or majority
Example
In the election, she won by a plurality of votes.
En la elección, ella ganó por una pluralidad de votos.
C1 verb /ɪnˈvɪɡ.ər.eɪt/

invigorate

revitalizar
Meaning
To give strength or energy to someone or something.
Example
A morning walk can invigorate both body and mind.
Una caminata matutina puede revitalizar tanto el cuerpo como la mente.
C1 adjective prɪˈkeə.ri.əs

precarious

peligroso
Meaning
Not securely held or in position; dependent on chance; uncertain.
Example
His financial situation is precarious.
Su situación financiera es peligrosa.
C1 noun /trænsˈfjuːʒən/

transfusion

transfusión sanguínea
Meaning
the process of transferring blood or another fluid into a person's vein
Example
The patient received a blood transfusion after the accident.
El paciente recibió una transfusión de sangre después del accidente.
C1 verb /koʊks/

coax

persuadir
Meaning
to persuade someone gently or gradually to do something
Example
She managed to coax the cat out of the tree with some food.
Ella logró convencer al gato para que bajara del árbol con algo de comida.
C1 noun /ˌkɔr.diˈæl.ɪ.ti/

Cordiality

cordialidad; amabilidad
Meaning
sincere affection and kindness; warm and friendly behavior
Example
The host's cordiality made all the guests feel welcome and comfortable.
La cordialidad del anfitrión hizo que todos los invitados se sintieran bienvenidos y cómodos.
C1 adjective /kənˈvɜːrdʒənt/

convergent

convergente
Meaning
tending to move toward a common point or result
Example
The two rivers have a convergent path before entering the lake.
Los dos ríos tienen un camino convergente antes de entrar al lago.
C1 verb /priːˈɛmpt/

pre-empt

prevenir por adelantado
Meaning
to act in advance to prevent an anticipated event from happening; forestall
Example
The government moved to pre-empt a crisis by introducing new policies.
El gobierno se movió para prevenir una crisis introduciendo nuevas políticas.
C1 adjective, noun /ˈɪnvəlɪd/ (adjective), /ɪnˈvælɪd/ (noun)

invalid

inválido
Meaning
Not valid; having no force or effect. Also refers to a person too weak or ill to care for themselves.
Example
The court declared the contract invalid.
El tribunal declaró el contrato inválido.
C1 adjective /ˌaʊt ən ˈaʊt/

out-and-out

completo
Meaning
complete; absolute; used to emphasize something extreme
Example
The speech was an out-and-out lie.
El discurso fue una mentira completa.
C1 adjective + noun ʌnˈpresɪdentɪd ˈnɒlɪdʒ

unprecedented knowledge

conocimiento sin precedentes
Meaning
Information or understanding that has never been obtained or achieved before.
Example
Artemis will provide unprecedented knowledge about the solar system.
Artemis proporcionará un conocimiento sin precedentes sobre el sistema solar.
C1 adjective /nɑːkˈtɜr.nəl/

Nocturnal

nocturno
Meaning
active at night; happening during the night
Example
Owls are nocturnal animals that hunt at night.
Los búhos son animales nocturnos que cazan por la noche.
C1 adjective /ˈflɪmzi/

flimsy

débil
Meaning
weak, fragile, or lacking in strength; not convincing
Example
The chair was too flimsy to support his weight.
La silla era demasiado débil para soportar su peso.
C1 noun /ʌnɪmˈpɔːrtəns/

unimportance

insignificancia
Meaning
the state or quality of being insignificant or not important
Example
He dismissed the issue with a sense of unimportance.
Él desestimó el asunto con un sentido de falta de importancia.
C1 noun /hɪm/

hymn

himno
Meaning
A religious song or poem of praise to God or a deity.
Example
The congregation sang a hymn during the morning service.
La congregación cantó un himno durante el servicio de la mañana.
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 noun /brɒŋˈkaɪtɪs/

bronchitis

bronquitis
Meaning
inflammation of the lining of the bronchial tubes, which carry air to and from the lungs
Example
The doctor diagnosed him with acute bronchitis.
El doctor lo diagnosticó con bronquitis aguda.
C1 noun məˈnɒp.əl.i

monopoly

monopolio
Meaning
The exclusive possession or control of the supply of or trade in a commodity or service.
Example
The company has a monopoly on electric car production.
La empresa tiene un monopolio en la producción de coches eléctricos.
C1 adjective /ˌmɛtəˈfɔːrɪkəl/

metaphorical

metafórico
Meaning
Characteristic of or relating to metaphor; figurative rather than literal.
Example
He used metaphorical language to describe his emotions.
Él usó un lenguaje metafórico para describir sus emociones.
C1 noun /ˈɛf.ɪ.kə.si/

efficacy

eficacia
Meaning
The ability to produce a desired or intended result; effectiveness.
Example
The efficacy of the vaccine has been proven in trials.
La eficacia de la vacuna se ha demostrado en los ensayos.
C1 noun ˌpriːˌɒkjʊˈpeɪʃən

preoccupation

preocupación
Meaning
The state of being absorbed in thought; mental distraction.
Example
His preoccupation with work led to neglecting his personal life.
Su preocupación por el trabajo llevó a descuidar su vida personal.
C1 adjective ˈtæs.ɪt

tacit

tácito
Meaning
Understood or implied without being openly expressed or stated
Example
Their mutual understanding was based on tacit agreement.
Su comprensión mutua se basó en un acuerdo tácito.
C1 noun /ˌjuːθəˈneɪʒə/

euthanasia

muerte asistida
Meaning
The practice of intentionally ending a life to relieve pain and suffering.
Example
The debate about euthanasia raises difficult ethical questions.
El debate sobre la eutanasia plantea preguntas éticas difíciles.
C1 adjective /ˈvɛdʒɪtətɪv/

vegetative

relacionado con el crecimiento o los procesos básicos de la vida
Meaning
relating to growth or the basic processes of life, often without conscious thought or activity
Example
The patient remained in a vegetative state after the accident.
El paciente permaneció en un estado vegetativo después del accidente.
C1 noun daɪˈkɒtəmi

dichotomy

dicotomía
Meaning
A division or contrast between two things that are or are represented as being opposed or entirely different.
Example
The dichotomy between tradition and modernity is often debated.
La dicotomía entre la tradición y la modernidad a menudo es debatida.
C1 adjective/adverb /ˌɒfˈhænd/

offhand

sin pensar
Meaning
Without previous thought or preparation; casual and sometimes dismissive.
Example
She gave an offhand reply to his serious question.
Ella dio una respuesta sin pensarlo a su seria pregunta.
C1 noun /ˈtrɛtʃəri/

treachery

traición
Meaning
Betrayal of trust; deceptive action or nature.
Example
His treachery was revealed when he sided with the enemy.
Su traición se reveló cuando se unió al enemigo.
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.
C1 noun /ˈsiːskeɪp/

seascape

paisaje marino
Meaning
A view or painting of the sea.
Example
The artist painted a beautiful seascape at sunset.
El artista pintó un hermoso paisaje marino al atardecer.
C1 verb /præns/

prance

caminar con arrogancia
Meaning
To move with high, springy steps, often to show off or attract attention.
Example
The horse pranced around the field gracefully.
El caballo caminaba orgulloso alrededor del campo.
C1 noun /ˈfen.jʊ.griːk/

Fenugreek

fenogreco
Meaning
an herb whose seeds and leaves are used as a spice in cooking
Example
Fenugreek seeds have a slightly bitter taste and are commonly used in Indian cuisine.
Las semillas de fenogreco tienen un sabor ligeramente amargo y se utilizan comúnmente en la cocina india.
C1 noun /ˈdɔːrˌkiːpər/

doorkeeper

portero
Meaning
A person whose job is to guard or manage the entrance of a building or room.
Example
The doorkeeper checked everyone’s passes before they entered the hall.
El doorkeeper revisó los pases de todos antes de que entraran al salón.
C1 adjective /ˈsted.fæst/

Steadfast

firme; resuelto; inquebrantable
Meaning
firm in belief, determination, or adherence; unwavering
Example
She remained steadfast in her commitment to helping the poor.
Ella permaneció firme en su compromiso de ayudar a los pobres.
C1 adjective /ˈkwɑː.drʊ.pəl/

Quadruple

cuádruple
Meaning
four times as much or as many; consisting of four parts
Example
The company's profits have shown quadruple growth this year.
Las ganancias de la empresa han mostrado un crecimiento cuádruple este año.
C1 noun /ˈrʌbəl/

rubble

escombros
Meaning
Broken stone, bricks, or debris from a collapsed building or structure.
Example
The rescue team searched through the rubble after the earthquake.
El equipo de rescate buscó entre los escombros después del terremoto.
C1 adjective /ˈspɛktrəl/

spectral

espectral
Meaning
Relating to a ghost or specter; ghostly. Also relating to a spectrum.
Example
The old mansion had a spectral atmosphere at night.
La vieja mansión tenía una atmósfera espectral por la noche.
C1 noun /ˈfɔːrˌrʌnər/

forerunner

precursor
Meaning
A person or thing that comes before another; a predecessor or harbinger.
Example
The Wright brothers were the forerunners of modern aviation.
Los hermanos Wright fueron los precursores de la aviación moderna.
C1 noun /ˈaɪ.wɪt.nəs/

Eyewitness

testigo ocular
Meaning
a person who has seen something happen and can give evidence about it
Example
The police interviewed several eyewitnesses to the accident.
La policía entrevistó a varios testigos oculares del accidente.
C1 adjective /ˈɔːbərn/

auburn

castaño rojizo
Meaning
reddish-brown in color, especially used to describe hair
Example
She has long auburn hair that shines in the sunlight.
Ella tiene el cabello largo y castaño rojizo que brilla al sol.
C1 noun əˈblɪv.i.ən

oblivion

olvido, destrucción, desaparición
Meaning
The state of being unaware or unconscious of what is happening; complete forgetfulness.
Example
His name faded into oblivion over time.
Su nombre se desvaneció en el olvido con el tiempo.
C1 noun /ˈkoʊmə/

coma

coma
Meaning
A deep state of prolonged unconsciousness caused by illness or injury.
Example
The patient remained in a coma for several weeks.
El paciente permaneció en coma durante varias semanas.
C1 adjective /ˈviːəmənt/

Vehement

vehemente; intenso; apasionado; enérgico
Meaning
showing strong feeling; forceful; passionate; intense
Example
She gave a vehement denial of the accusations.
Ella dio una negación vehemente de las acusaciones.
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 verb /ˈɡloʊbəlaɪz/

globalize

globalizar
Meaning
to make something worldwide in scope or application; to integrate into a global system
Example
Many companies globalize their operations to reach international markets.
Muchas empresas globalizan sus operaciones para llegar a mercados internacionales.
C1 noun /ˈɛpɪθɛt/

epithet

epíteto
Meaning
A descriptive phrase or word used to characterize someone or something, often as a nickname.
Example
He earned the epithet ‘The Great’ for his remarkable achievements.
Ganó el epíteto ‘El Grande’ por sus logros notables.
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.
C1 noun /siˈɛrə klʌb/

Sierra Club

Sierra Club
Meaning
An American environmental organization founded in 1892 by John Muir, focused on promoting conservation of the natural environment by influencing public policy decisions.
Example
John Muir founded the Sierra Club in 1892 to protect wild areas.
John Muir fundó el Sierra Club en 1892 para proteger áreas salvajes.
C1 verb /ˈwaɪtˌwɑːʃ/

whitewash

blanquear
Meaning
to cover up faults, errors, or unpleasant facts; to paint with white paint or lime
Example
The report was criticized for trying to whitewash the company's failures.
El informe fue criticado por tratar de blanquear los fracasos de la empresa.
C1 adjective /ɒˈstɛnsəbl/

ostensible

aparente
Meaning
stated or appearing to be true, but not necessarily so
Example
His ostensible reason for leaving was illness, but many doubted it.
Su aparente razón para irse era la enfermedad, pero muchos lo dudaron.
C1 verb /ˌdɪsɪmˈbɑːrk/

disembark

desembarcar
Meaning
To leave a ship, aircraft, or other vehicle.
Example
The passengers disembarked from the plane after landing.
Los pasajeros desembarcaron del avión después del aterrizaje.
C1 adjective /ɪˈneɪn/

inane

insensato, tonto
Meaning
lacking sense, meaning, or significance; silly or pointless
Example
The movie was criticized for its inane dialogue.
La película fue criticada por sus diálogos insensatos.
C1 noun /ˈsɔːrsəri/

sorcery

hechicería
Meaning
the use of magical powers, especially through spells and enchantments
Example
The villagers believed the illness was caused by sorcery.
Los aldeanos creían que la enfermedad fue causada por hechicería.
C1 verb /aʊtˈlɪv/

outlive

sobrevivir
Meaning
to live longer than someone or something else
Example
She outlived all her siblings.
Ella vivió más tiempo que todos sus hermanos.
C1 adjective /ˌɔː.riˈen.təl/

Oriental

relativo a los países del Este de Asia; oriental
Meaning
relating to the countries of East Asia; eastern
Example
The museum has a beautiful collection of oriental art.
El museo tiene una hermosa colección de arte oriental.
C1 noun /dɪsˈlɛksiə/

dyslexia

dislexia
Meaning
A learning disorder characterized by difficulty reading due to problems identifying speech sounds and decoding words.
Example
The teacher used special methods to help the student with dyslexia.
La profesora usó métodos especiales para ayudar al estudiante con dislexia.
C1 verb /ˈdʒenərəlaɪz/

generalize

generalizar
Meaning
To make a broad statement by inferring from specific cases.
Example
It is wrong to generalize based on a few experiences.
Es incorrecto generalizar basándose en unas pocas experiencias.
C1 verb ɪˈnɪʃɪeɪtɪd

initiated

iniciado
Meaning
Caused a process or action to begin; started something.
Example
The project was initiated to enhance marine biodiversity.
El proyecto fue iniciado para mejorar la biodiversidad marina.
C1 noun /ˈprɛəri/

prairie

pradera
Meaning
A large open area of grassland, especially in North America.
Example
The bison roamed freely across the prairie.
El bisonte deambulaba libremente por la pradera.
C1 noun dɛkˈstɛr.ɪ.ti

dexterity

destreza
Meaning
Skill in performing tasks, especially with the hands; mental skill or adroitness.
Example
His dexterity in playing the piano amazed the audience.
Su destreza al tocar el piano asombró al público.
C1 noun moʊst ˈvʌlnərəbəl ˈneɪʃən

most vulnerable nation

nación más vulnerable
Meaning
A country that is highly exposed to risks and lacks adequate protection or resilience.
Example
Bangladesh is one of the most vulnerable nations to climate change.
Bangladesh es uno de los países más vulnerables al cambio climático.
C1 noun ˌdɛɡrəˈdeɪʃən

degradation

degradación
Meaning
The condition or process of degrading or being degraded.
Example
Soil degradation due to overuse is a growing issue.
La degradación del suelo debido al uso excesivo es un problema creciente.
C1 noun /ˈvænɡɑːrd/

vanguard

vanguardia
Meaning
the forefront of an action, movement, or military force
Example
The company is at the vanguard of technological innovation.
La empresa está en la vanguardia de la innovación tecnológica.
C1 noun /ˌɔːkʃəˈnɪər/

auctioneer

subastador
Meaning
a person who conducts auctions by calling out bids and selling items to the highest bidder
Example
The auctioneer quickly raised the price as bidders competed for the painting.
El subastador aumentó rápidamente el precio mientras los compradores competían.
C1 adjective /ˌɪn.səbˈstæn.ʃəl/

insubstantial

insustancial
Meaning
Lacking strength, substance, or solidity.
Example
The evidence provided was insubstantial and unconvincing.
La evidencia proporcionada fue insustancial y poco convincente.
C1 noun /ɪnˌkɑːsəˈreɪʃən/

incarceration

encarcelamiento
Meaning
the state of being imprisoned or confined
Example
The criminal faced years of incarceration for his crimes.
El criminal enfrentó años de encarcelamiento por sus crímenes.
C1 noun /ˌmɪsˈdiːd/

Misdeed

acción malvada; delito
Meaning
A wicked or illegal act; wrongdoing
Example
He regretted his past misdeeds and tried to make amends.
Él lamentó sus malas acciones pasadas e intentó enmendarse.
C1 noun /brɪm/

Brim

borde; ala; ribete
Meaning
the projecting edge of a hat; the edge or lip of something
Example
The wide brim of his hat protected him from the scorching sun.
El amplio borde de su sombrero lo protegió del sol abrasador.
C1 noun /ˌpærəˈnɔɪə/

paranoia

miedo irracional y persistente de que las personas están 'tratando de hacerle daño' o lo están observando constantemente
Meaning
an irrational and persistent feeling that people are 'out to get you' or are constantly watching you
Example
His constant paranoia made it hard for him to trust anyone.
Su paranoia constante hacía que fuera difícil confiar en cualquiera.
C1 noun /frɪndʒ/

fringe

borde decorativo / orilla
Meaning
A decorative border of threads; the outer edge or margin of something.
Example
The festival had a fringe of small independent performances.
El festival tenía un borde de pequeñas actuaciones independientes.
C1 noun /ˈɪnkjʊˌbeɪtər/

incubator

incubadora
Meaning
a device or environment that provides suitable conditions for eggs, cells, or infants to develop
Example
The premature baby was placed in an incubator for care.
El bebé prematuro fue colocado en una incubadora para su cuidado.
C1 noun /pəˈfjuː.mər.i/

perfumery

industria de perfumes
Meaning
the art, business, or products of making perfumes
Example
She works in a perfumery that creates luxury scents.
Ella trabaja en una perfumería que crea aromas de lujo.
C1 noun ˈaʊt.sɔːr.sɪŋ

outsourcing

externalización
Meaning
The practice of having certain job functions done outside a company instead of having an in-house department or employee handle them.
Example
Many companies use outsourcing to reduce labor costs.
Muchas empresas utilizan la externalización para reducir los costos laborales.