affirmative
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C1 adjective /əˈfɜːrmətɪv/

affirmative

afirmativo
Meaning
expressing agreement, approval, or a positive response
Example
She gave an affirmative answer to the proposal.
Ella dio una respuesta afirmativa a la propuesta.
C1 verb /ˈkaʊər/

cower

agacharse por miedo
Meaning
to crouch down in fear
Example
The child cowered behind the sofa during the thunderstorm.
El niño se encogió detrás del sofá durante la tormenta.
C1 adjective /ˈsʌl.ki/

Sulky

malhumorado y taciturno; temperamental
Meaning
bad-tempered and sullen; moody
Example
The child became sulky when he couldn't get his favorite toy.
El niño se puso malhumorado cuando no pudo conseguir su juguete favorito.
C1 verb /ˈfɪdʒɪt/

fidget

moverse inquieto, estar inquieto
Meaning
to make small movements, especially because of nervousness or impatience
Example
The child began to fidget during the long lecture.
El niño empezó a moverse durante la larga conferencia.
C1 noun /ˈkɑːrtrɪdʒ/

cartridge

cartucho
Meaning
A container holding a substance or device, such as ink for printers or bullets for firearms.
Example
The printer stopped working because the ink cartridge was empty.
La impresora dejó de funcionar porque el cartucho de tinta estaba vacío.
C1 adjective /ɪnˈkrɛdjələs/

incredulous

incrédulo
Meaning
unwilling or unable to believe something
Example
He gave her an incredulous look when she claimed she could fly.
Le lanzó una mirada incrédula cuando afirmó que podría volar.
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 /buːn/

boon

bendición
Meaning
A thing that is helpful or beneficial.
Example
The internet is a boon to modern education.
Internet es una bendición para la educación moderna.
C1 adjective /ɪnˈsteɪbəl/

instable

inestable
Meaning
not stable; liable to change, collapse, or fail; lacking firmness or reliability
Example
The instable political situation worried foreign investors.
La situación política inestable preocupó a los inversores extranjeros.
C1 noun /ˈblʌd.ʃed/

Bloodshed

derramamiento de sangre; matanza
Meaning
the killing or wounding of people, typically in large numbers during a conflict
Example
The peace treaty was signed to prevent further bloodshed.
Se firmó el tratado de paz para evitar más derramamiento de sangre.
C1 noun /ˌmiːtiəˈrɒlədʒi/

meteorology

meteorología
Meaning
The scientific study of the atmosphere and weather.
Example
He chose to specialize in meteorology to study weather patterns.
Eligió especializarse en meteorología para estudiar los patrones climáticos.
C1 noun /ˌnoʊtəˈraɪəti/

notoriety

notoriedad
Meaning
The state of being famous or well-known for something bad.
Example
The criminal gained notoriety for his daring escapes.
El criminal ganó notoriedad por sus audaces escapatorias.
C1 noun /ˈɪm.pæs/

impasse

impasse
Meaning
A situation where no progress is possible.
Example
The negotiations reached an impasse, delaying the agreement.
Las negociaciones llegaron a un impasse, retrasando el acuerdo.
C1 noun /ˈpɪnəkəl/

pinnacle

cima
Meaning
the highest point or peak of something, especially of success or achievement
Example
Winning the Nobel Prize was the pinnacle of her career.
Ganar el Premio Nobel fue el pináculo de su carrera.
C1 noun /ˈɛkstrəˌvɜːrt/

extrovert

extrovertido
Meaning
a person who is outgoing, sociable, and energized by being around other people
Example
As an extrovert, she enjoys meeting new people at social events.
Como extrovertida, le gusta conocer gente nueva en eventos sociales.
C1 adjective /rɪˈsɛsɪv/

recessive

recesivo
Meaning
In genetics, relating to a trait that is expressed only when two copies of the gene are present.
Example
Blue eye color is often a recessive trait.
El color de ojos azules es a menudo un rasgo recesivo.
C1 adjective /ˌɪn.ɪˈfɛk.tʃu.əl/

ineffectual

ineficaz
Meaning
Not producing any or the desired effect; lacking the ability or qualities to achieve a purpose.
Example
The manager’s ineffectual leadership caused the team to lose motivation.
El liderazgo ineficaz del gerente hizo que el equipo perdiera la motivación.
C1 noun /ˈsɔː.dʌst/

sawdust

aserrín
Meaning
The tiny particles of wood produced by sawing or sanding.
Example
The floor was covered with sawdust from the carpentry work.
El suelo estaba cubierto con aserrín del trabajo de carpintería.
C1 noun /ˈʌndərˌstʌdi/

understudy

doble de reparto
Meaning
An actor who learns another's role to act as a replacement if needed.
Example
The understudy performed when the lead actor fell ill.
El doble de reparto actuó cuando el actor principal se enfermó.
C1 noun əˌkred.ɪˈteɪ.ʃən

accreditation

acreditación
Meaning
The action or process of officially recognizing someone or something as having a particular status or being qualified to perform a particular activity.
Example
Accreditation ensures institutional credibility.
La acreditación asegura la credibilidad institucional.
C1 noun /ˌɪn.trəˈvɜːr.ʒən/

introversion

introversión
Meaning
The tendency to be inward-looking and shy, preferring solitary activities.
Example
Her introversion made it difficult for her to enjoy large parties.
Su introversión le dificultaba disfrutar de las grandes fiestas.
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 verb /weɪn/

wane

decrecer
Meaning
To decrease gradually in power, intensity, or size.
Example
The moon wanes after the full moon night.
La luna decrece después de la noche de luna llena.
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 adjective /mɪˈrækjələs/

Miraculous

milagroso; asombroso; extraordinario
Meaning
supernatural; amazing; extraordinary
Example
Her miraculous recovery amazed all the doctors.
Su recuperación milagrosa sorprendió a todos los médicos.
C1 noun /ˈfɔːrwɜːrd/

foreword

prólogo
Meaning
a short introduction at the beginning of a book, typically written by someone other than the author
Example
The foreword of the book was written by a famous historian.
El prólogo del libro fue escrito por un historiador famoso.
C1 noun /ˈrɛɡjəleɪtər/

regulator

regulador
Meaning
a person or device that controls or maintains the operation of a system
Example
The government appointed a new regulator for the financial sector.
El gobierno nombró un nuevo regulador para el sector financiero.
C1 noun /əˈkuːstɪks/

acoustics

acústica
Meaning
the science of sound, or the properties of a space that affect how sound is heard
Example
The hall’s excellent acoustics made the orchestra sound rich and clear.
La excelente acústica del salón hizo que la orquesta sonara rica y clara.
C1 noun /ˈtæntrəm/

tantrum

berrinche
Meaning
An uncontrolled outburst of anger and frustration, typically in a young child.
Example
The child threw a tantrum when he didn’t get the toy.
El niño hizo un berrinche cuando no consiguió el juguete.
C1 noun /dɪˈpɑːzətɔːri/

depository

depósito, almacén
Meaning
a place where things are stored or deposited, especially financial assets
Example
The national depository safeguards all government bonds.
El depósito nacional salvaguarda todos los bonos del gobierno.
C1 noun /krʌks/

crux

el núcleo
Meaning
the most important or decisive point of an issue
Example
The crux of the problem lies in poor communication.
El núcleo del problema radica en la mala comunicación.
C1 noun /ˈɛksɜːrpt/

excerpt

extracto
Meaning
A short portion taken from a text, film, or piece of music.
Example
The teacher read an excerpt from the novel.
El maestro leyó un extracto de la novela.
C1 adjective ɪˈluː.sər.i

illusory

ilusorio
Meaning
Based on illusion; not real although seeming to be.
Example
His sense of security was entirely illusory.
Su sensación de seguridad era completamente ilusoria.
C1 noun /kɑːɡ/

cog

diente de rueda o engranaje
Meaning
A tooth on the rim of a wheel or gear; metaphorically, a minor but necessary part of a larger system.
Example
He felt like just a small cog in a big machine.
Se sintió como un pequeño engranaje en una gran máquina.
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 /ˌdɛsɪˈmeɪʃən/

decimation

destrucción masiva
Meaning
The act of destroying or killing a large proportion of something.
Example
The decimation of the city left thousands homeless.
La destrucción masiva de la ciudad dejó a miles de personas sin hogar.
C1 noun /saɪˈkoʊsɪs/

psychosis

psicosis
Meaning
A severe mental disorder in which thought and emotions are impaired, leading to a loss of contact with reality.
Example
The patient was diagnosed with psychosis after experiencing hallucinations.
El paciente fue diagnosticado con psicosis después de experimentar alucinaciones.
C1 adjective /ˈrɛtɪsənt/

reticent

reservado
Meaning
not revealing one's thoughts or feelings readily; reserved
Example
She was reticent about her personal life.
Ella estaba reservada sobre su vida personal.
C1 noun /wʊd ˈæp.əl/

Wood Apple

manzana de madera
Meaning
a hard-shelled tropical fruit with aromatic pulp used in beverages and medicine
Example
The wood apple has a hard shell but sweet pulp inside.
La manzana de madera tiene una cáscara dura pero pulpa dulce en su interior
C1 noun /ˈraɪtʃəsnəs/

righteousness

justicia
Meaning
the quality of being morally right or justifiable
Example
His life was dedicated to righteousness and truth.
Su vida estuvo dedicada a la justicia y la verdad.
C1 verb /ɪɡˈzɔːlt/

exalt

exaltar, ensalzar
Meaning
to praise highly or raise in rank, honor, or power
Example
The community exalted the teacher for his dedication.
La comunidad exaltó al maestro por su dedicación.
C1 noun ˈmaɪ.krəʊˌnjuː.tri.ənts

micronutrients

micronutrientes
Meaning
Essential nutrients required by organisms in small quantities throughout life to orchestrate a range of physiological functions.
Example
Micronutrients are essential for cellular function.
Los micronutrientes son esenciales para la función celular.
C1 noun /ˈheɪvən/

haven

refugio
Meaning
a safe place or shelter
Example
The library became a haven for students during exams.
La biblioteca se convirtió en un refugio para los estudiantes durante los exámenes.
C1 noun /ˈtwɪstər/

twister

tornado
Meaning
A tornado or something that twists; also refers to a challenging tongue twister.
Example
The twister destroyed several houses in the village.
El tornado destruyó varias casas en el pueblo.
C1 adjective /ˈtæŋ.i/

tangy

ácido
Meaning
Having a strong, sharp, and pleasantly biting flavor or taste.
Example
The sauce had a tangy flavor that brightened the dish.
La salsa tenía un sabor ácido que hizo que el plato fuera más sabroso.
C1 adjective /tɔːt/

taut

tenso
Meaning
stretched or pulled tight; tense
Example
The rope was pulled taut between the two poles.
La cuerda estaba tensa entre los dos postes.
C1 verb /ˈmæɡnɪfaɪ/

magnify

magnificar
Meaning
to make something appear larger; to increase the importance or effect of something
Example
The microscope can magnify tiny objects for better observation.
El microscopio puede magnificar objetos pequeños para mejor observación.
C1 noun /liˈeɪzɒn/

liaison

enlace
Meaning
communication or cooperation between people or groups for a smooth working relationship
Example
She works as a liaison between the company and its clients.
Ella trabaja como un enlace entre la empresa y sus clientes.
C1 noun /sɛˈseɪʃən/

cessation

cesación
Meaning
The fact or process of ending or being brought to an end.
Example
There was a temporary cessation of hostilities.
Hubo una cesación temporal de las hostilidades.
C1 noun /ˈkæn.ɪ.bəl/

Cannibal

caníbal
Meaning
a person who eats the flesh of other human beings
Example
The explorer's journal described rumors of cannibals living on the remote island.
El diario del explorador describía rumores de caníbales viviendo en la isla remota.
C1 adjective /ˌtɒpsi ˈtɜːvi/

topsy-turvy

desordenado
Meaning
in a state of confusion, disorder, or upside down
Example
The sudden announcement left the office in a topsy-turvy state.
El anuncio repentino dejó la oficina en un estado completamente desordenado.
C1 adjective /ˈɪnfəməs/

infamous

infame
Meaning
well known for some bad quality or deed
Example
The dictator was infamous for his cruelty.
El dictador era infame por su crueldad.
C1 verb /ˌrɛzəˈrɛkt/

resurrect

resucitar
Meaning
To bring back to life or revive something from the past.
Example
The director decided to resurrect the old play for a new audience.
El director decidió resucitar la obra antigua para una nueva audiencia.
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 adjective /ˌhɔːrtɪˈkʌltʃərəl/

horticultural

relacionado con la horticultura
Meaning
Relating to the art or practice of garden cultivation and management.
Example
She studied horticultural science at the university.
Ella estudió ciencia hortícola en la universidad.
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 adjective /mʌnˈdeɪn/

mundane

mundano
Meaning
lacking interest or excitement; dull and ordinary
Example
She tried to escape her mundane routine by traveling.
Ella intentó escapar de su rutina mundana viajando.
C1 adjective /sɪˈmɛtrɪkəl/

symmetrical

simétrico
Meaning
having parts on either side that match or are the same in shape, size, or arrangement
Example
The artist designed a symmetrical pattern on the floor.
El artista diseñó un patrón simétrico en el suelo.
C1 adjective ˌmæk.roʊ.iː.kəˈnɒm.ɪk

macroeconomic

macroeconómico
Meaning
Relating to the large-scale or general economic factors, such as interest rates and national productivity.
Example
Government policies impact macroeconomic stability.
Las políticas gubernamentales impactan la estabilidad macroeconómica.
C1 adjective /ˈækʃənəbl̩/

actionable

ejecutable
Meaning
Able to be acted on or giving sufficient reason for legal action.
Example
The lawyer confirmed that the evidence was actionable in court.
El abogado confirmó que la evidencia era ejecutable en la corte.
C1 adjective bəˈnev.əl.ənt

benevolent

benevolente, generoso, bondadoso
Meaning
Kind, generous, showing goodwill and kindness.
Example
His benevolent nature made him beloved.
Su naturaleza benevolente lo hizo querido.
C1 noun /mɪsˈɡɪvɪŋz/

misgivings

dudas, recelos
Meaning
feelings of doubt or concern about the outcome or propriety of something
Example
She had serious misgivings about signing the contract.
Ella tenía serias dudas sobre firmar el contrato.
C1 noun /ˈbɛərnəs/

bareness

desnudez
Meaning
the state of being bare or uncovered; lack of decoration, warmth, or concealment
Example
The bareness of the room made it feel cold and unwelcoming.
La desnudez de la habitación la hacía sentir fría y poco acogedora.
C1 noun trəˈdʒek.tər.i

trajectory

trayectoria
Meaning
The path followed by a projectile flying or an object moving under the action of given forces.
Example
The satellite followed its intended trajectory.
El satélite siguió su trayectoria prevista.
C1 noun /ˈæd.vənt/

advent

advenimiento
Meaning
The arrival of a notable person, thing, or event.
Example
The advent of the internet changed the way people communicate.
El advenimiento de Internet cambió la forma en que las personas se comunican.
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, noun /ˈflʌstər/

fluster

confundir
Meaning
to make someone agitated or confused
Example
The unexpected question flustered him.
La pregunta inesperada lo confundió.
C1 adjective /ləˈbɔːr.i.əs/

laborious

laborioso
Meaning
requiring considerable effort and time; difficult and hard-working
Example
Writing the long report was a laborious task.
Escribir el informe largo fue una tarea laboriosa.
C1 noun /ˈkævərn/

cavern

caverna
Meaning
a large cave or chamber in a cave
Example
The explorers entered a dark cavern beneath the mountain.
Los exploradores entraron en una caverna oscura debajo de la montaña.
C1 noun /ˈkælɪbər/

caliber

calibre
Meaning
The quality of someone's ability or character; the internal diameter of a gun barrel.
Example
The university attracts students of high caliber.
La universidad atrae a estudiantes de alto calibre.
C1 adjective /ˌæn.ɪkˈdoʊ.t̬əl/

anecdotal

basado en relatos personales más que en hechos o investigaciones, caracterizado por anécdotas
Meaning
Based on personal accounts rather than facts or research; characterized by anecdotes.
Example
The book was filled with anecdotal evidence rather than data.
El libro estaba lleno de evidencia anecdótica en lugar de datos.
C1 adjective /ˌɪlɪˈdʒɪtɪmət/

illegitimate

ilegítimo
Meaning
Not authorized by law, rules, or standards; not recognized as valid.
Example
The court ruled the contract to be illegitimate.
El tribunal dictaminó que el contrato era ilegítimo.
C1 noun /ˌriː.pəˈkʌʃ.ən/

repercussion

repercusión
Meaning
An unintended consequence occurring some time after an event or action.
Example
The economic crisis had severe repercussions on global trade.
La crisis económica tuvo severas repercusiones en el comercio global.
C1 noun /ˌɪmpɔːrˈteɪʃən/

importation

importación
Meaning
The act of bringing goods or services into a country from abroad
Example
The importation of luxury goods is strictly regulated.
La importación de productos de lujo está estrictamente regulada.
C1 adverb /ʌnˈnætʃrəli/

unnaturally

de manera antinatural
Meaning
in a way that is not natural or normal; excessively or strangely
Example
He smiled unnaturally, making everyone feel uncomfortable.
Sonrió de manera antinatural, haciendo que todos se sintieran incómodos.
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 adjective /ˈwaɪəri/

wiry

delgado, fuerte y resistente
Meaning
Lean, tough, and strong, often with sinewy muscles.
Example
The wiry athlete moved with remarkable speed and agility.
El atleta delgado se movió con una velocidad y agilidad notables.
C1 noun /ˈlɪmboʊ/

limbo

incertidumbre, estado de suspensión
Meaning
A state of uncertainty or neglect; an intermediate or transitional state.
Example
The project was left in limbo after the funding was withdrawn.
El proyecto fue dejado en incertidumbre después de que se retiró la financiación.
C1 adjective /ˈdeɪnti/

dainty

delicado y bonito
Meaning
Delicately small, pretty, and often considered elegant.
Example
She wore a dainty necklace made of pearls.
Ella llevaba un collar delicado hecho de perlas.
C1 noun /ˈmɑːrtərdəm/

Martyrdom

martirio
Meaning
The suffering of death on account of adherence to a cause or principle
Example
His martyrdom inspired countless others to join the freedom movement.
Su martirio inspiró a innumerables otros a unirse al movimiento por la libertad.
C1 noun /ˌrɛkwɪˈzɪʃən/

requisition

requisición
Meaning
An official order laying claim to the use of property or materials; a formal demand or request.
Example
The manager submitted a requisition for new office supplies.
El gerente presentó una requisición para nuevos suministros de oficina.
C1 noun /ˈstænzə/

stanza

estrofa
Meaning
a group of lines forming a unit in a poem or song
Example
The poem begins with a stanza describing nature.
El poema comienza con una estrofa que describe la naturaleza.
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 /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 /læps/

Lapse

fallo temporal; lapsus;
Meaning
a temporary failure of concentration, memory, or judgment; the termination of a right or privilege
Example
There was a brief lapse in security that allowed the intruder to enter the building.
Hubo un breve lapsus de seguridad que permitió al intruso entrar al edificio.
C1 verb /ˈkɒr.ə.leɪt/

correlate

establecer una relación
Meaning
To have a mutual relationship or connection; to establish a relationship between two or more things.
Example
Researchers found that diet and mental health correlate strongly.
Los investigadores descubrieron que la dieta y la salud mental se correlacionan fuertemente.
C1 noun, verb /ˈɔːtɒpsi/

autopsy

autopsia
Meaning
a post-mortem examination to discover the cause of death or the extent of disease
Example
The autopsy revealed that the victim had died from poisoning.
La autopsia reveló que la víctima murió por envenenamiento.
C1 noun /ˈɑːr.tər.i/

Artery

arteria
Meaning
a blood vessel that carries blood away from the heart to other parts of the body
Example
The doctor checked the pulse in his artery.
El doctor revisó el pulso en su arteria.
C1 adjective əsˈtjuːt

astute

astuto o sagaz
Meaning
Having or showing an ability to accurately assess situations or people and turn this to one's advantage.
Example
His astute observations helped solve the complex problem.
Sus observaciones astutas ayudaron a resolver el problema complejo.
C1 adjective /dɪˈʃɛvəld/

disheveled

desordenado
Meaning
Untidy, messy, or in disorder, especially of hair or clothing.
Example
He arrived with disheveled hair and wrinkled clothes.
Él llegó con el cabello desordenado y la ropa arrugada.
C1 noun /truːp/

troupe

grupo, compañía de teatro
Meaning
A group of dancers, actors, or performers who work together.
Example
The theater troupe performed brilliantly on stage.
La compañía de teatro actuó brillantemente en el escenario.
C1 adjective /pɜːrt/

pert

atrevido pero encantador
Meaning
attractively lively or cheeky in manner or style
Example
She gave a pert reply that made everyone laugh.
Ella dio una respuesta atrevida que hizo reír a todos.
C1 noun, verb /ˈskʌf.əl/

scuffle

pelea/disputa
Meaning
a short, confused fight or struggle; to engage in such a fight
Example
Two players scuffled on the field after the foul.
Dos jugadores se pelearon en el campo después de la falta.
C1 adjective /ˈrɛzənənt/

resonant

resonante
Meaning
Deep, clear, and continuing to sound or echo.
Example
The resonant voice of the speaker filled the hall.
La voz resonante del orador llenó la sala.
C1 noun ˌɒk.sɪˈdeɪ.ʃən

oxidation

oxidación
Meaning
A chemical reaction that involves the combination of a substance with oxygen, often causing deterioration.
Example
Oxidation causes metal surfaces to weaken.
La oxidación debilita las superficies metálicas.
C1 noun /ˈwɔː.tər ˈtʃes.nʌt/

Water Chestnut

castaña de agua
Meaning
aquatic plant with edible white crisp tubers
Example
Water chestnuts add a nice crunch to stir-fry dishes.
Las castañas de agua añaden un buen crujido a los platos salteados.
C1 noun /prəˈtruːʒən/

protrusion

protuberancia
Meaning
Something that sticks out or projects from a surface.
Example
The protrusion on the wall made it difficult to move the furniture.
La protuberancia en la pared hizo que mover los muebles fuera difícil.
C1 noun ɪˈpɪf.ə.ni

epiphany

revelación repentina o insight
Meaning
A moment of sudden revelation or insight.
Example
He had an epiphany about his true purpose in life.
Él tuvo una epifanía sobre su verdadero propósito en la vida.
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 /ˈkɒndɪmənts/

condiments

condimentos o salsas
Meaning
Seasonings or sauces used to add flavor to food.
Example
Ketchup and mustard are popular condiments for burgers.
El kétchup y la mostaza son condimentos populares para las hamburguesas.
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 noun /ˈɒptɪks/

optics

óptica
Meaning
The branch of physics dealing with light and vision.
Example
She studied optics to understand how lenses work.
Ella estudió óptica para entender cómo funcionan las lentes.
C1 adjective /ˈroʊ.ɡɪʃ/

Roguish

travieso; pícaro
Meaning
mischievous; playfully dishonest
Example
His roguish smile suggested he was up to some mischief.
Su sonrisa traviesa sugería que estaba tramando alguna travesura.
C1 adjective/noun nɪˈmɒn.ɪk

mnemonic

dispositivo mnemotécnico, técnica para recordar
Meaning
Assisting or intended to assist memory; a device or technique to aid memory.
Example
A mnemonic device helps students remember complex concepts.
Un dispositivo mnemotécnico ayuda a los estudiantes a recordar conceptos complejos.
C1 noun ˈrəʊvə

rover

rover
Meaning
A vehicle for driving over rough terrain, especially one driven by remote control over extraterrestrial terrain.
Example
The rover landed on Mars to begin its exploration.
El rover aterrizó en Marte para comenzar su exploración.
C1 adjective /ʌnˈsəʊʃəl/

unsocial

antisocial
Meaning
not enjoying the company of others; avoiding social interaction; contrary to social norms
Example
He prefers unsocial hours so he can work alone without interruptions.
Prefiere horarios antisociales para trabajar solo.
C1 noun /ˈmeɪniə/

Mania

manía; entusiasmo extremo
Meaning
Mental illness marked by periods of great excitement; extreme enthusiasm
Example
She had a mania for collecting vintage postcards from around the world.
Ella tenía una manía por coleccionar tarjetas postales antiguas de todo el mundo.
C1 noun /ˈɡʌnˌpaʊdər/

Gunpowder

pólvora
Meaning
explosive powder used in guns and fireworks
Example
Gunpowder was invented in ancient China.
La pólvora fue inventada en la antigua China.
C1 noun /ˈmɒnəlɪθ/

monolith

monolito
Meaning
A large single upright block of stone, or a large, powerful, indivisible organization or system.
Example
The ancient monolith stood in the desert for centuries.
El antiguo monolito estuvo de pie en el desierto durante siglos.
C1 verb /ˈɑːrbɪtreɪt/

arbitrate

arbitrar
Meaning
to settle a dispute between two parties by acting as an impartial judge
Example
The committee agreed to arbitrate the contract dispute.
El comité acordó arbitrar la disputa del contrato.
C1 adjective /ˈɑːr.dənt/

Ardent

ardiente; entusiasta; fervoroso
Meaning
very enthusiastic; passionate; fervent
Example
She is an ardent supporter of environmental conservation.
Ella es una ferviente defensora de la conservación ambiental.
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 adjective /raɪf/

rife

generalizado
Meaning
widespread or common, often in a negative sense
Example
Corruption was rife in the old government system.
La corrupción era generalizada en el antiguo sistema gubernamental.
C1 adjective ʌnˈtʃɑːtɪd

uncharted

inexplorado
Meaning
Not mapped or surveyed; unknown or unexplored.
Example
The mission aimed to explore uncharted areas of the planet.
La misión tenía como objetivo explorar áreas inexploradas del planeta.
C1 preposition /ˈbɑːrɪŋ/

barring

excepto por, salvo
Meaning
except for; if not for
Example
Barring a miracle, the team will not win the championship.
Salvo un milagro, el equipo no ganará el campeonato.
C1 verb /ˌkaʊntərˈækt/

counteract

contrarrestar
Meaning
to act against something in order to reduce its effect
Example
The medicine helps counteract the side effects of the treatment.
El medicamento ayuda a contrarrestar los efectos secundarios del tratamiento.
C1 verb /bɪˈhoʊld/

behold

contemplar; observar
Meaning
to see or observe something, especially something remarkable or impressive
Example
She stood quietly to behold the sunrise over the hills.
Ella se quedó en silencio para contemplar el amanecer sobre las colinas.
C1 adjective /ˌɪnækˈsɛsəbl/

inaccessible

inaccesible
Meaning
unable to be reached, entered, or understood
Example
The remote village is almost inaccessible during the rainy season.
El pueblo remoto es casi inaccesible durante la temporada de lluvias.
C1 noun /dɪˈfjuːʒən/

diffusion

difusión
Meaning
the spreading of something more widely or the movement of particles from high to low concentration
Example
The diffusion of information on social media is rapid.
La difusión de información en las redes sociales es rápida.
C1 noun /ˈkɒnsəl/

consul

cónsul / embajador
Meaning
an official appointed by a government to live in a foreign city and protect its citizens and interests there
Example
The consul assisted travelers who lost their passports.
El cónsul asistió a los viajeros que perdieron sus pasaportes.
C1 adjective /ˈneɡ.lɪ.dʒə.bəl/

Negligible

insignificante
Meaning
so small or unimportant as to be not worth considering; insignificant
Example
The side effects of this medicine are negligible.
Los efectos secundarios de este medicamento son insignificantes.