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C1 verb /əˈfɪks/

affix

adjuntar / pegar
Meaning
to attach or stick something firmly to another thing
Example
Please affix the stamp to the envelope.
Por favor, adjunte el sello al sobre.
C1 noun /ˈpoʊdiətrɪst/

podiatrist

podólogo
Meaning
a doctor specializing in foot care
Example
I have an appointment with the podiatrist for my ankle pain.
Tengo una cita con el podólogo para el dolor de tobillo.
C1 noun /ˈrɛtɪsəns/

reticence

reticencia
Meaning
the quality of being reserved or unwilling to speak freely
Example
His reticence made it difficult to know what he was thinking.
Su reticencia hizo que fuera difícil saber lo que estaba pensando.
C1 noun/adjective ˈflɛdʒ.lɪŋ

fledgling

principiante, inexperto, recién establecido
Meaning
New, inexperienced, newly established.
Example
The fledgling startup needs investment.
La empresa principiante necesita inversión.
C1 noun dɪˌtɪə.ri.əˈreɪ.ʃən

deterioration

deterioro
Meaning
The process of becoming progressively worse; decline in quality, condition, or strength.
Example
Poor maintenance leads to material deterioration.
El mal mantenimiento conduce a la deterioración del material.
C1 adjective /ɪmˈpɑːrʃəl/

Impartial

imparcial; neutral
Meaning
treating all sides fairly; unbiased; neutral
Example
A good judge must remain impartial throughout the trial.
Un buen juez debe mantenerse imparcial durante todo el juicio.
C1 verb /dɪˈfeɪs/

deface

desfigurar
Meaning
to spoil the surface or appearance of something, especially by writing or drawing on it
Example
The vandals defaced the wall with graffiti.
Los vándalos desfiguraron la pared con grafitis.
C1 noun /ˈɒntʊrɑːʒ/

entourage

séquito
Meaning
A group of people attending or surrounding an important person.
Example
The celebrity arrived with her entourage of assistants and bodyguards.
La celebridad llegó con su séquito de asistentes y guardaespaldas.
C1 noun /ˈɪnsɪdəns/

incidence

incidencia
Meaning
the occurrence, rate, or frequency of something
Example
The incidence of road accidents has decreased this year.
La incidencia de accidentes de tráfico ha disminuido este año.
C1 verb /sərˈmaɪz/

surmise

suponer
Meaning
to suppose something is true without having evidence
Example
She surmised that he was not coming to the meeting.
Ella supuso que él no iba a venir a la reunión.
C1 noun /ˈɪn.fən.tri/

Infantry

infantería
Meaning
soldiers marching or fighting on foot; foot soldiers collectively
Example
The infantry advanced across the battlefield on foot.
La infantería avanzó a través del campo de batalla a pie.
C1 noun /oʊθ/

Oath

juramento
Meaning
a solemn promise or declaration; a sworn statement
Example
The doctor took an oath to help patients.
El doctor hizo un juramento de ayudar a los pacientes.
C1 noun /vəˈnɪər/

veneer

felicidad
Meaning
A thin decorative covering of fine wood applied to a coarser wood or other material; a superficially attractive appearance.
Example
The table was covered with a thin veneer of mahogany.
Ella no pudo ocultar su felicidad cuando recibió el premio.
C1 adjective ˈser.ɪ.brəl

cerebral

cerebral
Meaning
Of the cerebrum of the brain.
Example
Cerebral functions regulate thoughts.
Las funciones cerebrales regulan los pensamientos.
C1 noun /rɪˈdʌn.dəns/

Redundance

redundancia
Meaning
the state of being not or no longer needed or useful; superfluous repetition of information
Example
The document contained redundance that made it unnecessarily long.
El documento contenía redundancia que lo hacía innecesariamente largo.
C1 noun /ʃeɪl/

shale

pizarra
Meaning
a fine-grained sedimentary rock that can be split into thin layers
Example
The region is rich in shale and natural gas deposits.
La región es rica en pizarra y depósitos de gas natural.
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 adverb /ˈmiːk.li/

Meekly

de manera sumisa; humildemente
Meaning
in a quiet, gentle way; without resistance or protest
Example
He meekly accepted the criticism without arguing.
Él aceptó la crítica humildemente sin discutir.
C1 verb /rɪˈkuːpəreɪt/

recuperate

recuperarse
Meaning
to recover from illness or regain strength
Example
She went to the countryside to recuperate after surgery.
Ella fue al campo a recuperarse después de la cirugía.
C1 adjective /rɪˈsɛptɪv/

receptive

receptivo
Meaning
Willing to listen to or accept new ideas, suggestions, or experiences.
Example
She was receptive to feedback from her colleagues.
Ella estaba receptiva a los comentarios de sus colegas.
C1 adjective /ˌeɪˈtɪpɪkəl/

atypical

atípico
Meaning
not representative of a type, group, or class; unusual or abnormal
Example
The doctor said it was an atypical case of the disease.
El doctor dijo que era un caso atípico de la enfermedad.
C1 noun /ˌrɛfəˈrɛndəm/

referendum

referéndum
Meaning
a general vote by the population on a single political issue
Example
The government held a referendum on the new constitution.
El gobierno celebró un referéndum sobre la nueva constitución.
C1 adjective /ˈfɜːr.vənt/

fervent

apasionado, entusiasta
Meaning
having or showing intense passion or enthusiasm
Example
She gave a fervent speech about climate change.
Ella dio un discurso apasionado sobre el cambio climático.
C1 adjective /priːˈɛmɪnənt/

preeminent

preeminente
Meaning
Surpassing all others; very distinguished in some way.
Example
She is a preeminent scientist in the field of genetics.
Ella es una científica preeminente en el campo de la genética.
C1 noun /ˌlɪbəˈreɪʃən wɔːr/

liberation war

guerra de liberación
Meaning
a war fought to gain freedom from foreign rule, occupation, or oppression; an armed struggle for national independence
Example
The liberation war reshaped the nation’s history and identity.
La guerra de liberación transformó la historia del país.
C1 noun /ˈfɔːrmən/

foreman

persona encargada de un grupo de trabajadores, especialmente en una fábrica o en una obra de construcción
Meaning
a person in charge of a group of workers, especially in a factory or construction site
Example
The foreman supervised the workers on the construction site.
El capataz supervisó a los trabajadores en el sitio de construcción.
C1 noun /rɪˈpʌlʃən/

Repulsion

repulsión
Meaning
a feeling of intense distaste or disgust; a force under the influence of which objects tend to move away from each other
Example
She felt a strong repulsion towards the idea of eating insects.
Ella sintió una fuerte repulsión hacia la idea de comer insectos.
C1 noun /ˌekspəˈzɪʃən/

exposition

exposición
Meaning
a detailed explanation or a large public exhibition
Example
The scientist gave a clear exposition of the theory.
El científico dio una explicación clara de la teoría.
C1 noun /ˈsɛmbləns/

Semblance

semblanza; apariencia
Meaning
the outward appearance or apparent form of something, especially when the reality is different
Example
There was only a semblance of order in the chaotic office.
Solo había una semblanza de orden en la oficina caótica
C1 noun /nɪl/

Nil

cero; nada
Meaning
nothing; zero; no amount
Example
His chances of winning were nil after the scandal.
Sus posibilidades de ganar eran nulas después del escándalo.
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 adjective ɪnˈkʌm.bənt

incumbent

obligatorio
Meaning
necessary for (someone) as a duty or responsibility.
Example
It is incumbent upon all citizens to obey the law.
Es obligatorio para todos los ciudadanos obedecer la ley.
C1 noun /ˈfoʊliɪdʒ/

foliage

follaje
Meaning
The leaves of a plant, collectively.
Example
The autumn foliage looked stunning in the park.
El follaje de otoño se veía impresionante en el parque.
C1 verb /plɒd/

plod

trabajar lentamente y con esfuerzo
Meaning
to work slowly and steadily, often with effort or difficulty
Example
He plodded through his homework despite feeling tired.
Él hizo su tarea lentamente aunque se sentía cansado.
C1 noun ɔːˈstɛr.ɪ.ti

austerity

austeridad
Meaning
Simple and disciplined lifestyle, avoiding luxury.
Example
The government implemented austerity measures to reduce expenses.
El gobierno implementó medidas de austeridad para reducir los gastos.
C1 adjective /ˈpɛnsɪv/

pensive

pensativo/a
Meaning
Engaged in deep or serious thought.
Example
She looked pensive as she stared out of the window.
Ella parecía pensativa mientras miraba por la ventana.
C1 noun /ˌɒk.sɪ.dʒɪˈneɪ.ʃən/

oxygenation

suministro o tratamiento con oxígeno
Meaning
The process of supplying or treating with oxygen.
Example
Deep breathing exercises improve oxygenation of the body.
Los ejercicios de respiración profunda mejoran el suministro de oxígeno en el cuerpo.
C1 noun /ˌæn.ɪˈmɒs.ə.ti/

Animosity

animosidad; hostilidad
Meaning
strong hostility or dislike; active hatred or ill will
Example
There was clear animosity between the two rival teams.
Había una clara animosidad entre los dos equipos rivales.
C1 adjective /rɪˈvɜː.sə.bəl/

Reversible

reversible
Meaning
able to be turned the other way around; able to be undone or changed back
Example
This jacket is reversible and can be worn on both sides.
Esta chaqueta es reversible y se puede usar por ambos lados.
C1 noun ˈvɜːmɪn

vermin

animales o insectos pequeños y dañinos que son difíciles de controlar y transmiten enfermedades
Meaning
Small harmful animals or insects that are difficult to control and carry disease.
Example
The house was infested with vermin, requiring immediate action.
La casa estaba infestada de verman, requiriendo acción inmediata.
C1 adjective /ˌoʊvərˈrɔt/

overwrought

angustiado / excesivamente nervioso
Meaning
extremely agitated or nervous; excessively elaborate
Example
She was too overwrought to speak clearly after the accident.
Ella estaba demasiado angustiada para hablar claramente después del accidente.
C1 adjective /ˌtræn.senˈdɛn.təl/

transcendental

trascendental
Meaning
relating to the spiritual or non-physical realm; surpassing ordinary experience
Example
Meditation can lead to transcendental experiences.
La meditación puede llevar a experiencias trascendentales.
C1 adjective /ˌɪnəˈfɛnsɪv/

inoffensive

inoffensivo
Meaning
Not likely to offend or provoke; harmless.
Example
His inoffensive remarks kept the conversation friendly.
Sus comentarios inofensivos mantuvieron la conversación amigable.
C1 noun /nɒb/

Knob

un mango redondeado en una puerta o cajón; un interruptor redondeado pequeño en una máquina
Meaning
a rounded handle on a door or drawer; a small rounded switch on a machine
Example
He turned the brass knob to open the old wooden door.
Giró el pomo de latón para abrir la puerta de madera vieja.
C1 adjective, noun /ɪnˈdɪkətɪv/

indicative

indicativo
Meaning
Serving as a sign or expression of something; in grammar, a mood used to make factual statements.
Example
His tone was indicative of his frustration.
Su tono era indicativo de su frustración.
C1 verb /ˈprɒfəsaɪ/

prophesy

profetizar
Meaning
to state or predict that something will happen in the future, especially as if divinely inspired
Example
The monk prophesied that peace would return to the land.
El monje profetizó que la paz regresaría a la tierra.
C1 adjective /ɪmˈpɛtʃ.u.əs/

impetuous

impulsivo
Meaning
Acting or done quickly and without thought or care; impulsive.
Example
His impetuous decision led to unexpected consequences.
Su decisión impulsiva condujo a consecuencias inesperadas.
C1 verb /kliːv/

cleave

dividir, cortar
Meaning
to split or divide; to cut through forcefully
Example
He used an axe to cleave the wood.
Usó un hacha para dividir la madera.
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 /ˈɒs.ɪ.leɪt/

oscillate

moverse o balancearse de un lado a otro entre dos puntos o estados
Meaning
To swing or move back and forth between two points or states
Example
The stock market tends to oscillate during uncertain times.
El mercado de valores tiende a oscilar durante tiempos inciertos.
C1 noun /ˈdɛməɡɒɡ/

demagogue

líder demagógico
Meaning
A political leader who seeks support by appealing to popular desires and prejudices rather than by using rational argument.
Example
The crowd was swayed by the fiery speeches of the demagogue.
La multitud fue influenciada por los discursos apasionados del líder demagógico.
C1 noun /ˌnjʊə.roʊ.plæˈstɪs.ɪ.ti/

neuroplasticity

neuroplasticidad
Meaning
The brain's ability to reorganize itself by forming new neural connections throughout life.
Example
Neuroplasticity allows the brain to rewire itself after an injury.
La neuroplasticidad permite que el cerebro se recablee después de una lesión.
C1 noun /ˈɡæmbɪt/

gambit

gambito
Meaning
a calculated move or remark intended to gain an advantage, especially in chess or conversation
Example
His opening gambit in the debate caught everyone by surprise.
Su gambito inicial en el debate sorprendió a todos.
C1 adjective /ˈhɛdˌstrɔŋ/

headstrong

terco
Meaning
Determined to do what one wants, even if it is not sensible.
Example
The headstrong child refused to listen to anyone.
El niño terco se negó a escuchar a nadie.
C1 noun /ˈbænɪstər/

banister

barandal
Meaning
a railing supported by posts at the side of a staircase or balcony
Example
She held the banister tightly while going down the stairs.
Ella sujetó el barandal con fuerza mientras bajaba las escaleras.
C1 adjective ˌɪn.krəˈmen.təl

incremental

incremental
Meaning
Relating to or denoting an increase or addition, especially one of a series on a fixed scale; proceeding in small stages.
Example
Incremental changes ensure sustainability.
Los cambios incrementales aseguran la sostenibilidad.
C1 noun /ˈlɪrɪk/

lyric

letra de canción
Meaning
the words of a song or a short poem that expresses personal feelings
Example
She memorized every lyric of her favorite song.
Ella memorizó cada letra de su canción favorita.
C1 adjective /ɪnˈveɪsɪv/

invasive

invasivo
Meaning
Tending to spread harmfully, intruding aggressively, or encroaching beyond proper boundaries.
Example
The doctor explained that the procedure was minimally invasive.
El doctor explicó que el procedimiento era mínimamente invasivo.
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 adjective /ˈθrɪfti/

thrifty

ahorrador
Meaning
using money and resources carefully and not wastefully
Example
She is very thrifty and always saves money for the future.
Ella es muy ahorradora y siempre ahorra dinero para el futuro.
C1 adjective /ɪˌlɪzəˈbiːθən/

elizabethan

era isabelina
Meaning
Relating to the reign of Queen Elizabeth I of England (1558–1603), especially the style of that period.
Example
Shakespeare wrote many of his plays during the Elizabethan era.
Shakespeare escribió muchas de sus obras durante la era isabelina.
C1 verb ˈplʌmɪtɪŋ

plummeting

caída repentina
Meaning
Falling or dropping suddenly and steeply; decreasing rapidly
Example
The fertility rate in Bangladesh is plummeting.
La tasa de fertilidad en Bangladesh está cayendo rápidamente.
C1 adjective /ˌsuː.pəˈsɒn.ɪk/

Supersonic

más rápido que la velocidad del sonido; relacionado con velocidades mayores que la del sonido
Meaning
faster than the speed of sound; relating to speeds greater than the speed of sound
Example
The supersonic jet broke the sound barrier.
El avión supersónico rompió la barrera del sonido.
C1 adjective /ɔːˈdeɪ.ʃəs/

Audacious

audaz
Meaning
showing willingness to take bold risks; daring
Example
His audacious plan to climb the mountain without proper equipment shocked everyone.
Su plan audaz de escalar la montaña sin el equipo adecuado sorprendió a todos.
C1 verb /ɪnˈvɜːrt/

invert

invertir
Meaning
To turn something upside down or in the opposite position, order, or direction.
Example
He inverted the glass to let the water drain out.
Él invirtió el vaso para dejar que el agua se drenara.
C1 adjective /ˈbreɪzən/

brazen

descarado
Meaning
Bold and without shame; shameless.
Example
She made a brazen attempt to lie in front of everyone.
Ella hizo un intento descarado de mentir frente a todos.
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 /ˈprɒfəsi/

prophecy

profecía
Meaning
a prediction or message about the future, often believed to be divinely inspired
Example
The prophecy foretold the rise of a great leader.
La profecía predijo el ascenso de un gran líder.
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 /ˈtɛmpərd/

tempered

templado
Meaning
having a specified temper or disposition; strengthened or moderated.
Example
She gave a tempered response to the criticism.
Ella dio una respuesta templada a las críticas.
C1 noun /ˈhaɪndsaɪt/

hindsight

perspectiva retroactiva
Meaning
Understanding of a situation only after it has happened.
Example
With the benefit of hindsight, we realized the decision was a mistake.
Con la ventaja de la perspectiva retroactiva, nos dimos cuenta de que la decisión fue un error.
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 noun ˈkɔː.pəs

corpus

una gran colección de datos lingüísticos usados para el análisis e investigación del lenguaje
Meaning
A large collection of linguistic data used for language analysis and research.
Example
Linguists use a corpus to analyze language patterns.
Los lingüistas usan un corpus para analizar los patrones del lenguaje.
C1 noun /meər/

Mare

yegua
Meaning
an adult female horse
Example
The beautiful mare galloped across the meadow.
La hermosa yegua galopó por el prado.
C1 noun /ˈlɪməˌziːn/

limousine

un coche grande y lujoso conducido por un chófer
Meaning
a large, luxurious car driven by a chauffeur.
Example
The bride arrived in a white limousine.
La novia llegó en una limusina blanca.
C1 adjective /ˈpɜːrsənəbl/

personable

agradable
Meaning
having a pleasant appearance and manner; attractive and friendly
Example
The new teacher is very personable and easy to talk to.
El nuevo maestro es muy agradable y fácil de hablar.
C1 adjective /ɪɡˈzɪləreɪtɪd/

exhilarated

exaltado
Meaning
feeling very happy, animated, or elated
Example
She felt exhilarated after finishing the marathon.
Ella se sintió exaltada después de terminar el maratón.
C1 verb məˈnɒp.ə.laɪz

monopolize

controlar exclusivamente
Meaning
Control exclusively, dominate market.
Example
The company tried to monopolize the market.
La empresa intentó monopolizar el mercado.
C1 noun /ˈtɛnəmənt/

tenement

inmueble de alquiler
Meaning
a large building divided into separate apartments, often in poor condition
Example
The family lived in a crowded tenement in the city.
La familia vivió en un tenement atestado en la ciudad.
C1 noun /helm/

Helm

timón
Meaning
a tiller or wheel for steering a ship or boat; a position of leadership or control
Example
The experienced captain took the helm and expertly navigated the ship through the storm.
El capitán experimentado tomó el timón y navegó el barco a través de la tormenta con destreza.
C1 noun /ʃɑːrd/

shard

fragmento
Meaning
a broken piece of glass, metal, or pottery
Example
He cut his finger on a shard of glass.
Se cortó el dedo con un fragmento de vidrio.
C1 verb /ˈpeɪtrənaɪz/

patronize

patrocinar
Meaning
to treat someone in a condescending way; to be a regular customer of a business
Example
Don't patronize me with your fake sympathy.
No me trates con condescendencia con tu simpatía falsa.
C1 adjective /səˈdɪs.tɪk/

sadistic

sádico
Meaning
Deriving pleasure from inflicting pain or suffering on others.
Example
The villain had a sadistic smile while hurting his enemies.
El villano tenía una sonrisa sádica mientras lastimaba a sus enemigos.
C1 noun /ˌɡaɪnəˈkɒlədʒi/

gynecology

ginecología
Meaning
the branch of medicine dealing with women's reproductive health
Example
She decided to specialize in gynecology after medical school.
Decidió especializarse en ginecología después de la escuela de medicina.
C1 noun /ˈænvɪl/

anvil

yunque de hierro
Meaning
A heavy iron block used by blacksmiths for hammering and shaping metal.
Example
The blacksmith placed the hot iron on the anvil.
El herrero colocó el hierro caliente sobre el yunque.
C1 verb/noun /skaʊl/

scowl

fruncir el ceño
Meaning
To frown in an angry or bad-tempered way.
Example
She scowled when she heard the unfair remark.
Ella frunció el ceño cuando escuchó el comentario injusto.
C1 adjective /ˈlɔː.də.bəl/

laudable

loable
Meaning
Deserving praise and admiration.
Example
Her efforts to help the poor are truly laudable.
Sus esfuerzos para ayudar a los pobres son realmente loables.
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 /ˈskruːpəl/

scruple

escrúpulo
Meaning
A moral or ethical consideration that restrains actions.
Example
He had no scruples about lying to get ahead.
Él no tenía escrúpulos para mentir y avanzar.
C1 noun /ˈsɪməli/

simile

símil
Meaning
A figure of speech involving the comparison of one thing with another using 'like' or 'as'.
Example
She used a simile to describe her eyes as bright as stars.
Ella usó un símil para describir sus ojos tan brillantes como las estrellas.
C1 noun /diːˈkrɪp.ʃən/

decryption

desencriptación
Meaning
The process of converting encrypted data back into its original form so it can be understood.
Example
Hackers attempted decryption of classified data.
Los hackers intentaron la desencriptación de datos clasificados.
C1 noun ˌɪnfɛsˈteɪʃən

infestation

infestación, gran número de insectos o animales en un lugar
Meaning
The presence of an unusually large number of insects or animals in a place, causing damage or disease.
Example
The infestation of ants in the kitchen led to immediate pest control measures.
La infestación de hormigas en la cocina llevó a medidas inmediatas de control de plagas.
C1 adjective /ˈboʊɡəs/

bogus

falso
Meaning
false, fake, or not genuine
Example
The police arrested him for using a bogus ID card.
La policía lo arrestó por usar una tarjeta de identificación falsa.
C1 noun /ˈfjuː.dʒə.tɪv/

Fugitive

fugitivo
Meaning
a person who has escaped from a place or is in hiding, especially to avoid arrest
Example
The police launched a manhunt to capture the fugitive who escaped from prison.
La policía lanzó una búsqueda para capturar al fugitivo que escapó de la prisión.
C1 noun /ˈstændˌstɪl/

standstill

paro
Meaning
a situation in which all movement or activity stops
Example
The traffic came to a standstill after the accident.
El tráfico llegó a un paro después del accidente.
C1 verb /dɪˈnəʊt/

denote

denotar
Meaning
To be a sign of; to indicate or mean something.
Example
A red flag denotes danger.
Una bandera roja denota peligro.
C1 noun /ˈskaʊndrəl/

scoundrel

canalla
Meaning
a dishonest or unscrupulous person; a villain
Example
That scoundrel cheated the old man out of his savings.
Ese canalla engañó al anciano y le robó sus ahorros.
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.
C1 verb /ˈbɑːrtər/

barter

trueque
Meaning
To exchange goods or services without using money.
Example
They bartered their crops for handmade tools.
Intercambiaron sus cultivos por herramientas hechas a mano.
C1 noun /ˈplez.ən.tri/

Pleasantry

cortesía
Meaning
a remark made in order to be polite or friendly; light conversation or jokes
Example
They exchanged pleasantries before the meeting began.
Intercambiaron cortesías antes de que comenzara la reunión.
C1 verb /rɪˈɡrɛs/

regress

retroceder
Meaning
To return to a former or less developed state.
Example
Without proper guidance, the child's progress began to regress.
Sin una guía adecuada, el progreso del niño comenzó a retroceder.
C1 noun /rɪˈpen.təns/

Repentance

arrepentimiento
Meaning
the action of repenting; sincere regret or remorse
Example
His genuine repentance moved everyone in the courtroom.
Su arrepentimiento genuino conmovió a todos en la sala del tribunal.
C1 adjective /ˈnɔɪz.ləs/

Noiseless

sin sonido; completamente silencioso
Meaning
making no sound; completely silent
Example
She moved through the house in noiseless steps so as not to wake the baby.
Se movió por la casa con pasos silenciosos para no despertar al bebé.
C1 noun ˈæltruɪzəm

altruism

altruismo, preocupación desinteresada por el bienestar de los demás
Meaning
The belief in or practice of disinterested and selfless concern for the well-being of others.
Example
His altruism motivated others to volunteer.
Su altruismo motivó a otros a ofrecerse como voluntarios.
C1 adjective /ˌɪnsərˈmaʊntəbl/

insurmountable

insuperable
Meaning
Too great to be overcome.
Example
The explorers faced insurmountable odds in the desert.
Los exploradores enfrentaron obstáculos insuperables en el desierto.
C1 adjective /ˈsleɪ.vɪʃ/

slavish

esclavo
Meaning
showing no originality; completely imitative or overly submissive
Example
His slavish devotion to tradition prevented any innovation.
Su devoción esclava a la tradición impidió cualquier innovación.
C1 adjective /ˈdʒɑː.rɪŋ/

jarring

desagradable, impactante
Meaning
Striking or shocking in a way that creates a strong contrast or clash.
Example
The sudden loud noise was jarring to everyone in the room.
El ruido fuerte y repentino fue impactante para todos en la sala.
C1 noun /ˈtɛnɪt/

tenet

principio
Meaning
a principle, belief, or doctrine held to be true
Example
Honesty is a central tenet of their philosophy.
La honestidad es un principio central de su filosofía.
C1 noun /sɪˈnɒpsɪs/

synopsis

sinopsis
Meaning
a brief summary of the main points of a text, film, or research
Example
The publisher asked the author to submit a one-page synopsis of the novel.
El editor le pidió al autor que enviara una sinopsis de una página de la novela.
C1 verb /pəˈveɪd/

pervade

permeabilizar
Meaning
to spread through and be present in every part of something
Example
The smell of fresh flowers pervaded the entire room.
El aroma de las flores frescas permeó toda la habitación.
C1 adjective /ɪmˈprɒbəbl/

improbable

improbable
Meaning
Not likely to be true or to happen.
Example
It seems improbable that he will arrive on time.
Parece improbable que llegue a tiempo.
C1 noun /ˌɛksɛnˈtrɪsəti/

eccentricity

excentricidad
Meaning
the quality of being unconventional or slightly strange
Example
His eccentricity made him both admired and misunderstood.
Su excentricidad lo hizo ser tanto admirado como incomprendido.
C1 noun ˌɒb.səˈlɛs.əns

obsolescence

obsolescencia
Meaning
The process of becoming obsolete or outdated and no longer used.
Example
The rapid advancement of technology leads to the obsolescence of old devices.
El rápido avance de la tecnología provoca la obsolescencia de los dispositivos antiguos.
C1 adjective /ˌæpəˈθɛtɪk/

apathetic

apático
Meaning
showing or feeling little or no interest, enthusiasm, or concern
Example
He was apathetic about the outcome of the match.
Él estaba apático respecto al resultado del partido.
C1 adjective /ˌʌnfɔːrˈsiːn/

unforeseen

inesperado
Meaning
Not anticipated or predicted; unexpected.
Example
The project faced unforeseen challenges that delayed its completion.
El proyecto enfrentó desafíos imprevistos que retrasaron su finalización.
C1 adjective /ˌfɪz.i.əˈlɒdʒ.ɪ.kəl/

physiological

relacionado con las funciones y actividades corporales
Meaning
Relating to bodily functions and activities.
Example
Exercise improves physiological functions of the body.
El ejercicio mejora las funciones fisiológicas del cuerpo.
C1 noun /ˈrɛnɪˌɡeɪd/

renegade

renegado
Meaning
a person who deserts or betrays an organization, country, or principles
Example
He was labeled a renegade after leaving the party and criticizing its policies.
Fue etiquetado como un renegado después de dejar el partido y criticar sus políticas.
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 /əˈsɛndənsi/

ascendancy

ascendencia, dominio
Meaning
A position of power, influence, or control over others.
Example
The company gained ascendancy in the market through innovation.
La empresa logró ascendencia en el mercado a través de la innovación.
C1 adjective /ˌaʊtˈlændɪʃ/

outlandish

extraño
Meaning
Looking or sounding bizarre or unfamiliar; strange.
Example
He wore an outlandish costume to the festival.
Él llevaba un traje extraño al festival.
C1 noun /ˈsɒlstɪs/

solstice

solsticio
Meaning
the two times in the year when the sun is at its greatest distance from the equator (summer and winter solstice)
Example
People celebrate the summer solstice with festivals and rituals.
La gente celebra el solsticio de verano con festivales y rituales.