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C1 noun /joʊk/

Yoke

yugo
Meaning
a wooden crosspiece that is fastened over the necks of two animals and attached to a plow or cart; a burden or oppressive situation
Example
The oxen were joined by a wooden yoke.
Los bueyes estaban unidos por un yugo de madera.
C1 verb /dɪˈsweɪd/

dissuade

disuadir
Meaning
To persuade someone not to do something.
Example
She tried to dissuade him from quitting his job.
Ella intentó disuadirlo de dejar su trabajo.
C1 noun /rɪˈfaɪnəri/

refinery

refinería
Meaning
an industrial facility where raw materials are processed and purified
Example
The oil refinery processes thousands of barrels daily.
La refinería de petróleo procesa miles de barriles a diario.
C1 verb /weɪd/

wade

caminar a través del agua
Meaning
to walk through water or another substance that impedes movement
Example
The children waded in the shallow river.
Los niños caminaban por el río poco profundo.
C1 noun /ɪkˈspɛktənsi/

expectancy

expectativa
Meaning
the state of expecting something; anticipation or likelihood
Example
There was a sense of expectancy in the room before the results were announced.
Había un sentido de expectación en la sala antes de que se anunciaran los resultados.
C1 noun /ˈrɪɡər/

rigor

rigor
Meaning
strictness, severity, or demanding conditions
Example
The training was carried out with great rigor.
El entrenamiento se llevó a cabo con gran rigor.
C1 adjective /ˈvɑːlətl/

volatile

volátil
Meaning
likely to change rapidly and unpredictably, especially for the worse
Example
The stock market is extremely volatile these days.
El mercado de valores es extremadamente volátil estos días.
C1 verb məˈtæb.ə.laɪz

metabolize

procesar y utilizar alimentos para el crecimiento
Meaning
Process and use food for growth and to replace tissue, or process other substances in the body.
Example
The liver helps to metabolize toxins.
El hígado ayuda a metabolizar toxinas.
C1 noun /ˈdʒɛpərdi/

jeopardy

peligro
Meaning
Danger of loss, harm, or failure.
Example
His careless driving put everyone in jeopardy.
Su conducción imprudente puso a todos en peligro.
C1 noun /ˈpɜːrɡəˌtɔːri/

purgatory

un lugar o estado de sufrimiento habitado por las almas de los pecadores que expían sus pecados antes de ir al cielo
Meaning
A place or state of suffering inhabited by the souls of sinners who are expiating their sins before going to heaven; a temporary condition of torment or suffering.
Example
After the accident, the long recovery felt like a kind of purgatory.
Después del accidente, la larga recuperación se sintió como una especie de purgatorio.
C1 noun ˈsɛlf pəˈzɪʃən

self-possession

autocontrol
Meaning
The quality of being calm and confident and in control of one's emotions; composure.
Example
His self-possession during the crisis was remarkable.
Su autocontrol durante la crisis fue notable.
C1 noun /ˌhoʊmiˈɑːpəθi/

homeopathy

homeopatía
Meaning
a system of alternative medicine based on treating diseases with highly diluted substances
Example
He believes in homeopathy for treating common colds.
Él cree en la homeopatía para tratar los resfriados comunes.
C1 noun /ˈælɔɪ/

alloy

aleación
Meaning
A mixture of metals or a metal combined with another element.
Example
Bronze is an alloy of copper and tin.
El bronce es una aleación de cobre y estaño.
C1 verb /ˈkəʊ.dɪ.faɪ/

codify

codificar
Meaning
to arrange laws, rules, or ideas into a clear and systematic code
Example
The committee worked to codify the existing laws.
El comité trabajó para codificar las leyes existentes.
C1 noun /ˌdʒerənˈtɑːlədʒi/

gerontology

gerontología
Meaning
The scientific study of old age and the process of aging.
Example
She chose to specialize in gerontology after completing medical school.
Ella decidió especializarse en gerontología después de completar la escuela de medicina.
C1 verb /pləˈkeɪt/

placate

calmar
Meaning
to make someone less angry or hostile; to calm or soothe
Example
He tried to placate the angry customer with a refund.
Intentó calmar al cliente enojado con un reembolso.
C1 noun /ˌprəʊ.baɪˈɒt.ɪks/

probiotics

probióticos
Meaning
Live microorganisms that, when administered in adequate amounts, confer health benefits to the host, especially for digestive health.
Example
Probiotics improve digestion and enhance gut health.
Los probióticos mejoran la digestión y promueven la salud intestinal.
C1 verb /ˈstriːm.laɪn/

streamline

simplificar o aumentar la eficiencia
Meaning
To make a process simpler and more efficient.
Example
The company aims to streamline production to reduce costs.
La compañía tiene como objetivo optimizar la producción para reducir los costos.
C1 noun /ˈɛksədəs/

exodus

éxodo
Meaning
A mass departure of people from a place.
Example
There was a sudden exodus of workers after the strike began.
Hubo un éxodo repentino de trabajadores después de que comenzara la huelga.
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.
C1 adjective /ˈbɔɪənt/ or /ˈbuːjənt/

buoyant

flotante, animado
Meaning
Able to float easily; cheerful and optimistic.
Example
She remained buoyant despite the difficulties.
Ella permaneció animada a pesar de las dificultades.
C1 noun /dɪˈten.ʃən/

Detention

detención; prisión temporal
Meaning
the action of detaining someone or being detained in official custody
Example
The student received detention for repeatedly disrupting the class.
El estudiante recibió detención por interrumpir repetidamente la clase.
C1 adjective /ˈheɪ.nəs/

Heinous

atroz
Meaning
extremely wicked or evil; abominable; morally reprehensible
Example
The heinous crime shocked the entire community.
El crimen atroz conmocionó a toda la comunidad.
C1 noun/adjective/verb /bʌf/

buff

aficionado / pulir
Meaning
A fan or enthusiast; also to polish or shine something.
Example
He is a movie buff who watches films every weekend.
Él es un aficionado al cine que ve películas cada fin de semana.
C1 adjective skiˈmæt.ɪk

Schematic

relacionado con un esquema o de forma resumida
Meaning
Presenting some framework or concept briefly
Example
The engineer provided a schematic diagram of the project.
El ingeniero proporcionó un diagrama esquemático del proyecto.
C1 adjective /dɪˈmɪnjətɪv/

diminutive

diminuto
Meaning
extremely or unusually small
Example
Despite his diminutive size, he was a powerful leader.
A pesar de su tamaño diminuto, era un líder poderoso.
C1 adverb /ˈhɑr.tɪ.li/

Heartily

cordialmente; de todo corazón
Meaning
in a sincere and enthusiastic manner; wholeheartedly
Example
She heartily welcomed her guests to the party.
Ella dio una cordial bienvenida a sus invitados a la fiesta.
C1 noun /æbˈstrækʃən/

abstraction

abstracción
Meaning
the process of forming general ideas by removing specific details; an abstract concept or idea
Example
Abstraction allows complex ideas to be represented in a simplified form.
La abstracción permite representar ideas complejas de forma simplificada.
C1 noun /ˈpɜːrkəleɪtər/

percolator

percolador de café
Meaning
A device used for brewing coffee by continually cycling boiling water through coffee grounds.
Example
She made a fresh pot of coffee using the percolator.
Hizo una taza fresca de café utilizando el percolador.
C1 verb, noun /ˈbrɪsəl/

bristle

pelos rígidos; reaccionar con ira
Meaning
to react angrily or defensively; a short stiff hair or fiber
Example
The cat bristled when it saw the dog.
El gato se erizó cuando vio al perro.
C1 verb/noun /ˈθrɒt.əl/

throttle

ahogar/controlar velocidad
Meaning
To choke or strangle; to control the flow of fuel or power in an engine.
Example
The driver throttled the engine to slow down the car.
El conductor redujo la velocidad del motor para frenar el coche.
C1 adjective ɪˈθɪə.ri.əl

ethereal

celestial, delicado, sobrenatural
Meaning
Extremely delicate and light in a way that seems too perfect for this world.
Example
Her voice had an ethereal quality.
Su voz tenía una calidad etérea.
C1 verb /ˈpɑːzɪt/

posit

postular
Meaning
To assume or suggest something as a fact or basis for reasoning.
Example
The scientist posited a new theory to explain the phenomenon.
El científico postuló una nueva teoría para explicar el fenómeno.
C1 adjective /ˌsɛrənˈdɪpɪtəs/

serendipitous

afortunado inesperado
Meaning
Occurring or discovered by chance in a happy or beneficial way.
Example
Their meeting at the café was purely serendipitous.
Su encuentro en el café fue completamente afortunado.
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 noun /ˈeɪ.nəs/

Anus

ano
Meaning
the opening at the end of the digestive tract through which waste leaves the body
Example
The doctor examined the patient's anus during the medical checkup.
El doctor examinó el ano del paciente durante el chequeo médico.
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 /ɪnˈtrɛntʃt/

entrenched

arraigado
Meaning
Firmly established and unlikely to change.
Example
Corruption is deeply entrenched in the system.
La corrupción está profundamente arraigada en el sistema.
C1 verb /sərˈmaʊnt/

surmount

superar
Meaning
to overcome a difficulty or obstacle
Example
He surmounted all the challenges to achieve his dream.
Él superó todos los desafíos para lograr su sueño.
C1 verb /ɪnˈtæŋɡəl/

entangle

enredar
Meaning
to become twisted together or caught in something; to involve in difficulties
Example
The fish got entangled in the net.
El pez se enredó en la red.
C1 adjective /əˈblɪɡ.ə.tɔː.ri/

obligatory

obligatorio
Meaning
Required by a legal, moral, or other rule; compulsory.
Example
Wearing a seatbelt is obligatory in most countries.
Usar el cinturón de seguridad es obligatorio en la mayoría de los países.
C1 verb /rɪˈbʌf/

rebuff

rechazar
Meaning
to reject or refuse in a sharp or abrupt way
Example
She rebuffed his invitation to dinner.
Ella rechazó su invitación a cenar.
C1 noun /əˈsæsɪn/

Assassin

asesino
Meaning
a person who murders an important person for political or religious reasons
Example
The president was protected from potential assassins by security guards.
El presidente fue protegido de los posibles asesinos por los guardias de seguridad.
C1 adjective /dɪˈfɪʃənt/

Deficient

deficiente
Meaning
not having enough of a specified quality or ingredient; lacking or inadequate
Example
His diet was deficient in essential vitamins.
Su dieta era deficiente en vitaminas esenciales.
C1 noun ˌdɛməˈɡræfɪk trænˈzɪʃən

demographic transition

transición demográfica
Meaning
A shift in population patterns from high birth and death rates to low birth and death rates as a country develops economically
Example
The demographic transition indicates a shift towards an aging society.
La transición demográfica indica un cambio hacia una sociedad envejecida.
C1 verb /ˈməʊbɪlaɪz/

mobilize

movilizar
Meaning
to organize or prepare people or resources for action
Example
The leader worked hard to mobilize the community for the protest.
El líder trabajó duro para movilizar a la comunidad para la protesta.
C1 noun /ˌɪn.dʒəˈnjuː.ɪ.ti/

ingenuity

ingenio
Meaning
The quality of being clever, original, and inventive.
Example
His ingenuity led to groundbreaking innovations.
Su ingenio llevó a innovaciones pioneras.
C1 verb /dɪˈtɛst/

detest

detestar
Meaning
To dislike intensely or hate.
Example
I detest waking up early on weekends.
Yo detesto levantarme temprano los fines de semana.
C1 noun /ˈmenəs/

Menace

amenaza
Meaning
A person or thing that is likely to cause harm; a threat
Example
The reckless driver was a menace to everyone on the road.
El conductor imprudente era una amenaza para todos en la carretera.
C1 adjective /ˈfruːt.ləs/

Fruitless

infructuoso; inútil; fútil;
Meaning
unsuccessful; futile; pointless;
Example
After hours of searching, their efforts proved fruitless.
Después de horas de búsqueda, sus esfuerzos resultaron infructuosos.
C1 noun /ˈstætʃuːt/

statute

ley
Meaning
A written law passed by a legislative body.
Example
The new statute protects workers' rights.
La nueva ley protege los derechos de los trabajadores.
C1 adjective /pərˈpɔːrtɪd/

purported

presunto
Meaning
alleged or claimed to be true, often without proof
Example
The purported evidence was later proven false.
La evidencia presunta fue más tarde probada como falsa.
C1 verb /ˈpleɪdʒəraɪz/

plagiarize

plagiar
Meaning
to take someone else's work or ideas and present them as your own
Example
He was warned not to plagiarize his friend's essay.
Se le advirtió que no plagiara el ensayo de su amigo.
C1 verb /ˌriːˈkæl.ɪ.breɪt/

recalibrate

recalibrar, ajustar nuevamente
Meaning
To calibrate again or differently; to adjust or correct something based on new information or changed circumstances.
Example
The company had to recalibrate its strategies to adapt to the market.
La empresa tuvo que recalibrar sus estrategias para adaptarse al mercado.
C1 adjective /ˈtʃɛkərd/

chequered

a rayas
Meaning
Having a pattern of squares, or marked by varied and contrasting experiences or periods.
Example
He had a chequered career with both great successes and failures.
Tuvo una carrera a rayas con grandes éxitos y fracasos.
C1 adjective /ɔːˌθɒr.ɪˈteə.ri.ən/

authoritarian

autoritario
Meaning
Demanding absolute obedience to authority; excessively controlling or strict in governance.
Example
Authoritarian parenting often limits a child's independence.
La crianza autoritaria a menudo limita la independencia de un niño.
C1 noun nɪˈmɒnɪks

mnemonics

técnica de memoria, ayudas mnemotécnicas
Meaning
A technique to aid memory; a device such as a pattern of letters, ideas, or associations
Example
Mnemonics help in remembering complex concepts easily.
Los mnemónicos ayudan a recordar conceptos complejos fácilmente.
C1 adjective /ɪnˈstɪŋk.tɪv/

instinctive

instintivo, natural, automático
Meaning
Based on instinct; done without conscious thought; natural and automatic.
Example
His instinctive reaction saved his life.
Su reacción instintiva le salvó la vida.
C1 adjective, noun /ˈmɑːrʃən/

martian

marciano
Meaning
Related to the planet Mars; or an imaginary being from Mars.
Example
The movie showed a Martian visiting Earth.
La película mostró un marciano visitando la Tierra.
C1 verb /ʌnˈnɜːrv/

unnerve

perder la confianza
Meaning
to make someone lose confidence, courage, or composure
Example
The hostile questions began to unnerve the witness.
Las preguntas hostiles comenzaron a poner nervioso al testigo.
C1 adjective /ˈɡɔːri/

gory

sangriento
Meaning
involving or showing a lot of bloodshed and violence
Example
The movie was too gory for children.
La película fue demasiado sangrienta para los niños.
C1 adjective /ˌʌnrɪˈfaɪnd/

unrefined

sin refinar
Meaning
not processed or purified; lacking polish or sophistication
Example
The unrefined oil must be processed before it can be used as fuel.
El aceite sin refinar debe procesarse antes de usarse como combustible.
C1 verb /kəmˈprɛs/

compress

comprimir
Meaning
to press or squeeze something so that it becomes smaller
Example
The file was compressed to save storage space.
El archivo fue comprimido para ahorrar espacio de almacenamiento.
C1 noun, adjective /ˈrɛvərənd/

reverend

reverendo, honorable
Meaning
A title of respect used for members of the clergy; deserving deep respect.
Example
The Reverend gave an inspiring sermon at the church.
El reverendo dio un sermón inspirador en la iglesia.
C1 adjective /ˌʌndərˈsteɪtɪd/

understated

subestimado
Meaning
Presented in a subtle and restrained way.
Example
She wore an elegant but understated dress.
Ella llevaba un vestido elegante pero subestimado.
C1 noun /ˈæntənɪm/

antonym

antónimo
Meaning
A word opposite in meaning to another.
Example
‘Hot’ is the antonym of ‘cold’.
‘Hot’ es el antónimo de ‘cold’.
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 noun /ˌhaɪ.roʊˈɡlɪf.ɪks/

hieroglyphics

jeroglíficos
Meaning
a system of writing using pictures or symbols, used especially by ancient Egyptians
Example
The tomb walls were covered with Egyptian hieroglyphics.
Las paredes de la tumba estaban cubiertas con jeroglíficos egipcios.
C1 noun /draɪ ˈtʃɪl.i/

Dry Chilli

pimiento seco
Meaning
dried chili peppers used as spice for adding heat to food
Example
The recipe calls for two dry chillies to make it spicy.
La receta requiere dos pimientos secos para hacerlo picante.
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 /krəˈvæs/

crevasse

grieta profunda
Meaning
a deep crack in a glacier or the earth’s surface
Example
The climbers carefully crossed the icy crevasse.
Los escaladores cruzaron cuidadosamente la grieta helada.
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 adjective /ˈnɪmbəl/

nimble

ágil
Meaning
Quick and light in movement or thought.
Example
The dancer’s nimble steps impressed the audience.
Los ágiles pasos de la bailarina impresionaron al público.
C1 noun /bəˈrɑːʒ/

barrage

barrida o ataque rápido
Meaning
a concentrated outpouring of questions, criticisms, or blows; a rapid, continuous attack
Example
The politician faced a barrage of tough questions from reporters.
El político enfrentó una avalancha de preguntas difíciles de los reporteros.
C1 noun ˌfɔːtɪfɪˈkeɪʃn

fortification

fortificación
Meaning
A defensive wall or other reinforcement built to strengthen a place against attack.
Example
The fortifications protected the city.
Las fortificaciones protegieron la ciudad.
C1 noun /ˈpɛnɪtəns/

penitence

penitencia
Meaning
The action or feeling of showing sorrow and regret for having done wrong.
Example
His eyes were full of penitence after realizing his mistake.
Sus ojos estaban llenos de penitencia después de darse cuenta de su error.
C1 adjective /ˌʌnsəˈfɪstɪˌkeɪtɪd/

unsophisticated

no sofisticado
Meaning
Lacking worldly experience, refinement, or complexity.
Example
The villagers led an unsophisticated but happy life.
Los aldeanos llevaban una vida no sofisticada pero feliz.
C1 verb /ɪnˈɡroʊs/

engross

absorto
Meaning
to absorb all the attention or interest of someone
Example
She was so engrossed in the book that she forgot the time.
Ella estaba tan absorbida en el libro que olvidó la hora.
C1 noun /rɪˈtriː.vəl/

retrieval

recuperación
Meaning
The process of getting something back, especially from storage or memory.
Example
The brain's retrieval system helps recall past experiences.
El sistema de recuperación del cerebro ayuda a recordar experiencias pasadas.
C1 verb /əˈtjuːn/

attune

sintonizar
Meaning
to make someone or something aware of or responsive to something; to adjust or harmonize
Example
She quickly attuned herself to the needs of her new team.
Ella se sintonizó rápidamente con las necesidades de su nuevo equipo.
C1 noun /ɪnˈækjʊrəsi/

inaccuracy

inexactitud
Meaning
lack of accuracy or precision; an incorrect or wrong detail
Example
The report contained several factual inaccuracies.
El informe contenía varias inexactitudes.
C1 noun /ˌpændəˈmoʊniəm/

pandemonium

pandemonio
Meaning
Wild and noisy disorder or confusion; uproar.
Example
When the concert was canceled, pandemonium broke out among the crowd.
Cuando el concierto fue cancelado, se desató el pandemonio entre la multitud.
C1 noun /ˈsɪləbəl/

syllable

sílaba
Meaning
A unit of pronunciation having one vowel sound, with or without surrounding consonants, forming the whole or part of a word.
Example
The word 'computer' has three syllables.
La palabra 'computadora' tiene tres sílabas.
C1 adjective /ˈstɒdʒi/

stodgy

pesado, anticuado
Meaning
Dull, uninspired, or old-fashioned; also heavy and hard to digest when referring to food.
Example
The lecture was so stodgy that many students struggled to stay awake.
La conferencia fue tan pesada que muchos estudiantes tuvieron dificultades para mantenerse despiertos.
C1 noun /ˈmeɪ.trɪks/

matrix

matriz, estructura
Meaning
An environment or structure in which something develops; also a mathematical array of numbers.
Example
The cultural matrix shaped his worldview.
La matriz cultural moldeó su visión del mundo.
C1 verb /bɪˈhɛd/

behead

decapitar
Meaning
to cut off a person's or animal's head; to remove the leader or most important part
Example
The historical account describes how the traitor was beheaded as punishment.
El relato histórico describe cómo el traidor fue decapitado como castigo.
C1 noun /ˈæntlɚ/

antler

cuerno de ciervo
Meaning
The branched horns on the head of a deer or similar animal, usually shed and regrown annually.
Example
The deer’s antlers grew larger each year.
Los cuernos de ciervo crecían más grandes cada año.
C1 noun /səˈprɑːnoʊ/

soprano

la voz más alta femenina o de niño
Meaning
the highest female or boy’s singing voice
Example
She sang beautifully in the soprano range during the concert.
Ella cantó hermosamente en el rango soprano durante el concierto.
C1 adjective, noun /ˈdɛrəlɪkt/

derelict

abandonado
Meaning
in poor condition due to neglect or disuse; a homeless or neglected person
Example
The old factory stood derelict for decades.
La vieja fábrica estuvo abandonada durante décadas.
C1 noun /haʊnd/

Hound

perro de caza
Meaning
a dog bred for hunting, typically having a keen sense of smell
Example
The bloodhound tracked the scent through the dense forest.
El bloodhound siguió el rastro a través del denso bosque.
C1 noun /ˌɪnˈdɪsəplɪn/

indiscipline

indisciplina
Meaning
lack of discipline or self-control; failure to obey rules or maintain order
Example
Indiscipline among the students disrupted the learning environment.
La indisciplina entre los estudiantes interrumpió el ambiente de aprendizaje.
C1 noun /ˌmɑːr.kɪ.təˈbɪl.ə.ti/

marketability

comercialización
Meaning
The possibility of commercial success for a product or service
Example
The new product's marketability depends on consumer demand.
La comerciabilidad del nuevo producto depende de la demanda de los consumidores.
C1 noun ˈsʌfrɪdʒ

suffrage

sufragio
Meaning
The right to vote in political elections; the principle of political representation.
Example
Universal suffrage was a key demand.
El sufragio universal fue una demanda clave.
C1 verb /əˈmæs/

amass

acumular
Meaning
to gather together or accumulate over a period of time
Example
He managed to amass a fortune through wise investments.
Logró acumular una fortuna a través de inversiones sabias.
C1 adjective /pɪˈkjuːniˌɛri/

pecuniary

pecuniario
Meaning
relating to money or financial matters
Example
They faced pecuniary difficulties after the business failed.
Enfrentaron dificultades pecuniarias después de que el negocio fracasó.
C1 adjective /ˈɪnsjələr/

insular

limitado, relacionado con una isla
Meaning
Narrow-minded, isolated, or relating to an island.
Example
The community was criticized for its insular attitudes toward outsiders.
La comunidad fue criticada por sus actitudes insulares hacia los forasteros.
C1 noun /ˈhɛrətɪk/

heretic

hereje
Meaning
a person who holds beliefs that go against established religious teachings or accepted beliefs.
Example
The church declared him a heretic for his radical ideas.
La iglesia lo declaró hereje por sus ideas radicales.
C1 adjective /ɪnˈseɪʃəbl̩/

insatiable

insaciable
Meaning
impossible to satisfy; always wanting more
Example
Her insatiable curiosity drove her to read every book in the library.
Su insaciable curiosidad la llevó a leer todos los libros de la biblioteca.
C1 noun /noʊˈteɪʃən/

notation

notación
Meaning
A system of symbols or signs used to represent information, especially in mathematics or music.
Example
The teacher explained the notation used in the algebra equations.
El profesor explicó la notación utilizada en las ecuaciones algebraicas.
C1 adjective /prɪˈpɒstərəs/

preposterous

absurdo, ridículo
Meaning
completely ridiculous or absurd; contrary to reason or common sense
Example
The idea that pigs could fly is preposterous.
La idea de que los cerdos puedan volar es absurda.
C1 verb/adjective /ˈɡræspɪŋ/

grasping

agarrando / codicioso
Meaning
Holding firmly; or (as an adjective) excessively greedy.
Example
The child was grasping her mother’s hand tightly.
El niño estaba agarrando fuertemente la mano de su madre.
C1 noun /kɒzˈmɒlədʒi/

cosmology

cosmología
Meaning
the science of the origin and development of the universe
Example
She studied cosmology to understand the origins of the universe.
Estudió cosmología para entender los orígenes del universo.
C1 verb /priːˈɒkjʊpaɪ/

preoccupy

preocupar, obsesionar
Meaning
To dominate or engross the mind of someone to the exclusion of other thoughts.
Example
Worries about the future preoccupy him constantly.
Las preocupaciones sobre el futuro lo ocupan constantemente.
C1 adjective /diːˈsɛntrəlaɪzd/

decentralized

descentralizado
Meaning
Controlled by several local offices or authorities rather than one single one.
Example
The decentralized system allowed for more control at local levels.
El sistema descentralizado permitió un mayor control a nivel local.
C1 verb /koʊˈhæbɪt/

cohabit

cohabitar
Meaning
To live together, often as partners without being married.
Example
They decided to cohabit before getting married.
Decidieron cohabitar antes de casarse.
C1 verb, noun /ˈmʌstər/

muster

reunir / juntar coraje
Meaning
to gather people, especially soldiers; to summon courage or strength
Example
He mustered enough courage to face the challenge.
Él reunió suficiente coraje para enfrentar el desafío.
C1 adjective /ˈspʌndʒi/

Spongy

esponjoso
Meaning
soft and full of holes like a sponge; porous
Example
The cake had a light and spongy texture.
El pastel tenía una textura ligera y esponjosa.
C1 adjective /ˈspaɪni/

spiny

espinoso
Meaning
covered with or full of spines; having sharp points
Example
The spiny cactus stood tall in the desert.
El cactus espinoso se alzaba alto en el desierto.
C1 noun /ɡəˈrɪlə/

guerrilla

guerrillero
Meaning
a member of a small independent group taking part in irregular fighting, typically against larger forces
Example
The guerrilla fighters used ambushes to attack enemy positions.
Los combatientes guerrilleros usaron emboscadas para atacar las posiciones enemigas.
C1 noun /fiˈæs.koʊ/

fiasco

fracaso total
Meaning
a complete failure, especially a ludicrous or humiliating one
Example
The event turned into a complete fiasco due to poor planning.
El evento se convirtió en un fracaso total debido a una mala planificación.
C1 verb /kənˈtraɪv/

contrive

idear
Meaning
to plan or devise cleverly or skillfully
Example
She contrived a clever plan to surprise her friends.
Ella ideó un plan ingenioso para sorprender a sus amigos.
C1 verb /ˌriːˈkɒn.stɪ.tʃuːt/

reconstitute

reconstituir
Meaning
to restore something to its original form or state; to reassemble
Example
The group was reconstituted after the leader returned.
El grupo fue reconstituido después de que el líder regresó.
C1 verb /əkˈsɛntʃueɪt/

accentuate

acentuar
Meaning
to emphasize or make something more noticeable
Example
The lighting accentuated the beauty of the painting.
La iluminación acentuó la belleza de la pintura.
C1 verb /dɪˈluːd/

delude

engañar
Meaning
To mislead someone into believing something that is not true.
Example
He deluded himself into thinking he could win the race without training.
Él se engañó a sí mismo pensando que podía ganar la carrera sin entrenar.
C1 noun /ˈwʊd.ən ˈsæn.dəl/

Wooden sandal

sandalia de madera
Meaning
a type of footwear made of wood, typically worn as traditional shoes
Example
She wore wooden sandals to the traditional ceremony.
Ella llevaba sandalias de madera en la ceremonia tradicional.
C1 noun /ˈsteɪ.ʃən.ər/

Stationer

papelería
Meaning
a person who sells paper, pens, pencils, and other office supplies
Example
The stationer recommended the best pens for writing exams.
El estacionista recomendó los mejores bolígrafos para los exámenes.
C1 verb /dɪsˈbænd/

disband

disolver
Meaning
to break up and stop functioning as a group or organization
Example
The club decided to disband after twenty years of activity.
El club decidió disolverse después de veinte años de actividad.
C1 noun /ˈliːvˌteɪ.kɪŋ/

leave-taking

despedida
Meaning
an act of saying goodbye; farewell
Example
His leave-taking from his friends was emotional.
Su despedida de sus amigos fue emocional.
C1 verb /rɪˈdrɛs/

redress

remediar
Meaning
to set right, remedy, or compensate for a wrong or grievance
Example
The company promised to redress the complaints of its customers.
La compañía prometió remediar las quejas de sus clientes.
C1 verb /priːˈɛmpt/

preempt

prevenir
Meaning
To take action in order to prevent something from happening; to take the place of something.
Example
The government acted quickly to preempt a financial crisis.
El gobierno actuó rápidamente para prevenir una crisis financiera.
C1 noun /vʌlˈɡær.ɪ.ti/

Vulgarity

vulgaridad
Meaning
the quality of being rude, offensive, or indecent; lack of sophistication or good taste
Example
The comedian's jokes were criticized for their vulgarity.
Los chistes del comediante fueron criticados por su vulgaridad.