bristle
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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, adjective, noun /lɪmp/

limp

cojear / débil
Meaning
to walk with difficulty, often due to injury or weakness; lacking strength or firmness.
Example
He limped after injuring his ankle.
Él cojeó después de lastimarse el tobillo.
C1 verb /pərˈtɜːrb/

perturb

perturbar
Meaning
To disturb or unsettle greatly in mind.
Example
The sudden noise perturbed the students during the exam.
El ruido repentino perturbó a los estudiantes durante el examen.
C1 verb /kənˈvɜːrdʒ/

converge

converger
Meaning
to come together from different directions; to meet at a point
Example
The roads converge at the city center.
Las carreteras convergen en el centro de la ciudad.
C1 adjective /ˌmɪsəˈleɪniəs/

Miscellaneous

misceláneo; diverso; mezclado
Meaning
various; diverse; mixed; assorted
Example
The box contained miscellaneous items from different periods.
La caja contenía artículos diversos de diferentes períodos.
C1 adjective /ˈdɒɡɪd/

dogged

tenaz
Meaning
showing stubborn determination and persistence
Example
She succeeded through dogged determination.
Ella tuvo éxito gracias a su tenaz determinación.
C1 noun /stɛlθ/

stealth

sigilo, moverse en secreto
Meaning
The act of moving, doing, or achieving something quietly and secretly.
Example
The cat moved with stealth towards its prey.
El gato se movió sigilosamente hacia su presa.
C1 noun /ˌrɛspɪˈreɪʃən/

respiration

respiración
Meaning
The process of breathing or the exchange of gases in living organisms.
Example
Respiration is essential for all living beings.
La respiración es esencial para todos los seres vivos.
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 adverb /ˌðɛərˈʌv/

Thereof

de eso
Meaning
of that; from that
Example
The contract and all amendments thereof must be signed.
El contrato y todas las enmiendas de eso deben ser firmados.
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 adverb /pɜːr ˈseɪ/

per se

por sí mismo
Meaning
By or in itself; intrinsically.
Example
The idea is not bad per se, but it needs improvement.
La idea no es mala por sí mismo, pero necesita mejora.
C1 noun /ˈænti ˈeəkræft ɡʌn/

Anti-aircraft-gun

cañón antiaéreo
Meaning
a weapon designed to attack aircraft from the ground
Example
The anti-aircraft gun was positioned to defend the military base.
El cañón antiaéreo estaba posicionado para defender la base militar.
C1 noun /ʃæˈtoʊ/

chateau

castillo francés
Meaning
a large French country house or castle
Example
They stayed in a beautiful chateau in France.
Se alojaron en un hermoso castillo en Francia.
C1 noun /ˈræʃən/

ration

ración
Meaning
a fixed amount of something, especially food, officially allowed to each person
Example
During the war, each family received a weekly ration of rice.
Durante la guerra, cada familia recibía una ración semanal de arroz.
C1 adverb /rɪˈspek.tə.bli/

Respectably

de manera respetable; decente;
Meaning
in a way that is worthy of respect; decently; properly
Example
She was dressed respectably for the interview.
Ella estaba vestida de manera respetable para la entrevista.
C1 adjective /kɜːrt/

curt

ríspido
Meaning
Rudely brief in speech or manner.
Example
His curt reply made everyone uncomfortable.
Su respuesta ríspida hizo que todos se sintieran incómodos.
C1 verb /dɪsˈhɑːrtn/

dishearten

desanimar
Meaning
to cause someone to lose determination or confidence; to discourage
Example
The constant rejection letters began to dishearten the young writer.
Las cartas de rechazo constantes comenzaron a desanimar al joven escritor.
C1 adjective ˈflʌd proʊn

flood-prone

propenso a inundaciones
Meaning
Susceptible to flooding; likely to experience floods frequently.
Example
Bangladesh is a flood-prone deltaic nation.
Bangladesh es una nación deltaica propensa a inundaciones.
C1 noun fɔːlt ˈtɒl.ər.əns

fault-tolerance

tolerancia a fallos
Meaning
The ability of a system to continue operating properly in the event of the failure of some of its components.
Example
Fault-tolerance ensures dependable systems.
La tolerancia a fallos asegura sistemas confiables.
C1 noun /daɪˈvɜː.ʃən/

Diversion

desviación
Meaning
the action of turning something aside from its course; an activity that diverts the mind
Example
The road closure forced a diversion through the countryside for all travelers.
El cierre de la carretera obligó a una desviación a través del campo para todos los viajeros.
C1 noun /ˈhɜː.mɪt/

Hermit

una persona que vive en soledad como una disciplina religiosa; alguien que se retira de la sociedad
Meaning
a person living in solitude as a religious discipline; someone who withdraws from society
Example
The old hermit lived alone in a small cabin deep in the mountains, away from civilization.
El viejo ermitaño vivía solo en una pequeña cabaña en lo profundo de las montañas, lejos de la civilización.
C1 verb /zæɡ/

zag

hacer un giro brusco
Meaning
to make a sharp change in direction, especially in a zigzag pattern
Example
The rabbit zagged quickly to escape the fox.
El conejo hizo un giro rápido para escapar del zorro.
C1 noun /ˈɡreɪ.haʊnd/

Greyhound

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

cede

ceder
Meaning
to give up power, territory, or rights to another
Example
The country ceded territory after losing the war.
El país cedió territorio después de perder la guerra.
C1 adjective /ˈkɔːrdiəl/

Cordial

cordial; sincero; afectuoso
Meaning
warmly friendly; sincere; heartfelt
Example
She gave us a cordial welcome at the front door.
Nos dio una cordial bienvenida en la puerta principal.
C1 adjective /ˈɡʌsti/

gusty

ventoso
Meaning
characterized by strong, sudden bursts of wind
Example
It was a cold, gusty day by the sea.
Fue un día frío y ventoso junto al mar.
C1 adverb /ˈmɪdweɪ/

Midway

a mitad de camino; en el medio
Meaning
halfway; at or to the middle point
Example
The project is midway through completion.
El proyecto está a medio camino de su finalización.
C1 noun /ɪˌlæbəˈreɪʃən/

elaboration

elaboración / explicación detallada
Meaning
the process of adding more detail or expanding on something
Example
The teacher appreciated the student's elaboration of the topic.
El maestro apreció la elaboración del tema por parte del estudiante.
C1 adjective + noun kəˈmendəbəl ɪˈnɪʃətɪvz

commendable initiatives

iniciativas loables
Meaning
Praiseworthy efforts or actions that deserve admiration and approval.
Example
The commendable initiatives aim to raise awareness.
Las iniciativas loables tienen como objetivo aumentar la conciencia.
C1 adjective /ˈpɛtjʊlənt/

petulant

irritable
Meaning
Childishly sulky or bad-tempered.
Example
The child became petulant when denied more candy.
El niño se volvió irritable cuando no le dieron más dulces.
C1 adjective /ˌeɪpəˈlɪtɪkəl/

apolitical

apolítico
Meaning
not interested in or not connected with politics
Example
She prefers to stay apolitical and focus on her work.
Ella prefiere mantenerse apolítica y concentrarse en su trabajo.
C1 adjective /sliːk/

sleek

elegante y brillante
Meaning
smooth, shiny, and stylish
Example
She drove a sleek black sports car.
Ella condujo un coche deportivo brillante y elegante.
C1 noun /ˌsɑːrdʒənt ˈmeɪdʒər/

sergeant-major

sargento-mayor
Meaning
A senior non-commissioned officer in the army responsible for discipline and administration within a unit.
Example
The sergeant-major inspected the troops before the parade.
El sargento-mayor inspeccionó a las tropas antes del desfile.
C1 verb /ˈɡælvənaɪz/

galvanize

felicidad
Meaning
to shock or excite someone into taking action; to coat iron or steel with a protective layer of zinc
Example
The speech galvanized the crowd into action.
Ella no pudo ocultar su felicidad cuando recibió el premio.
C1 verb /ˈwɒb.l̩/

wobble

tambalear
Meaning
to move unsteadily from side to side; to shake or tremble slightly
Example
The table began to wobble when he leaned on it.
La mesa comenzó a tambalear cuando él se apoyó sobre ella.
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 adjective /ɪˈmuː.və.bəl/

immovable

inmóvil
Meaning
Not able to be moved; fixed in position.
Example
Immovable barriers prevent change.
Las barreras inmóviles impiden el cambio.
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 noun /ˈæl.kə.laɪ/

alkali

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

centiliter

centilitro
Meaning
A metric unit of capacity equal to one hundredth of a liter.
Example
The recipe calls for 20 centiliters of milk.
La receta requiere 20 centilitros de leche.
C1 noun /ˈpoʊtənsi/

potency

potencia
Meaning
The power or ability of something to affect or influence; strength or effectiveness.
Example
The potency of the new medicine amazed the doctors.
La potencia de la nueva medicina sorprendió a los médicos.
C1 adjective /ˈsɪnjuəs/

sinuous

sinuoso
Meaning
Having many curves, bends, or turns; winding.
Example
The hikers followed a sinuous path through the forest.
Los excursionistas siguieron un camino sinuoso a través del bosque.
C1 adjective /ˈraɪ.tʃəs/

Righteous

recto; justo; virtuoso
Meaning
morally right or justifiable; virtuous; having strong moral principles
Example
She felt righteous anger at the unfair treatment of workers.
Ella sintió ira justa por el trato injusto hacia los trabajadores.
C1 adjective /ˈmɔːrbɪd/

morbid

interés anormal en temas perturbadores o desagradables
Meaning
Having an abnormal interest in disturbing or unpleasant subjects such as death or disease.
Example
She had a morbid fascination with crime stories.
Ella tenía una fascinación mórbida por las historias de crímenes.
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 verb /siːð/

seethe

hirviendo de rabia
Meaning
To be filled with intense but unexpressed anger or agitation.
Example
She was seething with anger after the unfair decision.
Ella estaba hirviendo de rabia después de la decisión injusta.
C1 noun /æmˈniːʒə/

amnesia

amnesia
Meaning
A partial or total loss of memory, usually caused by injury, illness, or psychological trauma.
Example
After the accident, she suffered from amnesia and could not remember her own name.
Después del accidente, sufrió de amnesia y no pudo recordar su propio nombre.
C1 noun /tɔːrk/

torque

torque
Meaning
A twisting force that causes rotation.
Example
The mechanic measured the torque of the engine.
El mecánico midió el torque del motor.
C1 noun /wæɡ/

Wag

persona bromista; alguien que disfruta hacer chistes
Meaning
a humorous or playful person; someone who enjoys joking around
Example
The class wag always made everyone laugh with his clever jokes.
El bromista de la clase siempre hacía reír a todos con sus bromas ingeniosas.
C1 adjective /ˈɜːrstwaɪl/

erstwhile

antiguo
Meaning
former or in the past
Example
They were erstwhile friends but no longer speak.
Fueron amigos antiguos, pero ya no hablan.
C1 noun /rɪˈliːf treɪn/

Relief Train

tren de alivio
Meaning
a train that carries emergency supplies and aid to disaster-affected areas
Example
The relief train arrived with food and medical supplies for the flood victims.
el tren de alivio llegó con alimentos y suministros médicos para las víctimas de la inundación.
C1 verb /ˈviːtoʊ/

veto

vetar
Meaning
to reject or forbid a decision, proposal, or law
Example
The president decided to veto the new bill.
El presidente decidió vetar el nuevo proyecto de ley.
C1 adjective /ˌmed.iˈiː.vəl/

Mediaeval

medieval
Meaning
relating to the Middle Ages; medieval
Example
The castle displayed mediaeval architecture and design.
El castillo mostraba arquitectura y diseño medieval.
C1 noun /ˈlɔːriət/

laureate

galardonado
Meaning
A person honored with an award for outstanding achievement in a field, especially the arts or sciences.
Example
The Nobel laureate gave an inspiring lecture on peace.
El laureado Nobel dio una conferencia inspiradora sobre la paz.
C1 verb /səˈlɪdəˌfaɪ/

solidify

solidificar
Meaning
To make something firm, strong, or more certain.
Example
The company solidified its position in the market.
La empresa solidificó su posición en el mercado.
C1 /splɪnt/

splint

férula
Meaning
A rigid device used to support and immobilize a broken or injured body part.
Example
The doctor applied a splint to stabilize the patient's broken arm.
El doctor aplicó una férula para estabilizar el brazo roto del paciente.
C1 adjective /ʌnˈhoʊli/

Unholy

impío; perverso; profano
Meaning
wicked; sinful; profane
Example
The unholy alliance between the two companies caused public outrage.
La alianza impía entre las dos compañías causó indignación pública.
C1 adjective /ʌnˈθɪŋkɪŋ/

unthinking

irreflexivo
Meaning
done without careful thought; automatic or thoughtless
Example
His unthinking remark hurt her feelings.
Su comentario irreflexivo hirió sus sentimientos.
C1 noun /ˈlɪɡ.əmənt/

ligament

tejido ligamento
Meaning
A tough band of tissue that connects bones at a joint.
Example
He tore a ligament in his knee while playing football.
Se rompió un ligamento en su rodilla mientras jugaba al fútbol.
C1 noun ˌɒp.tɪ.maɪˈzeɪ.ʃən

optimization

optimización
Meaning
Improving processes to increase performance and efficiency.
Example
SEO optimization helps websites rank higher on search engines.
La optimización de SEO ayuda a los sitios web a obtener un rango más alto en los motores de búsqueda.
C1 adjective /ˈpɑːm.pəs/

Pompous

pomposo; pretencioso; excesivamente grandioso
Meaning
showing off; pretentious; overly grand
Example
His pompous attitude annoyed everyone at the meeting.
Su actitud pomposa molestó a todos en la reunión.
C1 noun /ˈlaɪtʃi/

Litchi

lichi
Meaning
a small oval pink-red tropical fruit with white translucent flesh and sweet taste
Example
The litchi has a rough pink shell that you peel to eat the sweet white fruit inside.
El litchi tiene una cáscara rosa rugosa que se pela para comer la fruta blanca y dulce en su interior.
C1 adjective /ɪnˈhɛrənt/

inherent

inherente
Meaning
Existing in something as a natural, permanent, or essential quality.
Example
There are inherent risks in extreme sports.
Existen riesgos inherentes en los deportes extremos.
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 adjective /ˌɛk.spəˈnɛn.ʃəl/

exponential

crecimiento rápido o expansión a un ritmo creciente
Meaning
Rapid growth or expansion at an increasing rate
Example
Technology is advancing at an exponential rate.
La tecnología está avanzando a un ritmo exponencial.
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 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 verb /ˈplʌm.ɪt/

plummet

caer verticalmente a alta velocidad
Meaning
to fall straight down at high speed
Example
Stock prices plummeted after the sudden market crash.
Los precios de las acciones cayeron repentinamente después del colapso del mercado.
C1 adjective /dɪˈɡreɪdɪd/

degraded

degradado
Meaning
Reduced in quality, dignity, or condition.
Example
The villagers were forced to live in degraded conditions.
Los aldeanos fueron obligados a vivir en condiciones degradadas.
C1 noun /sɔɪl ˈmæn.ɪdʒ.mənt/

soil management

gestión del suelo
Meaning
The application of operations, practices, and treatments to protect soil and enhance its performance.
Example
Proper soil management improves long-term agricultural productivity.
La gestión adecuada del suelo mejora la productividad agrícola a largo plazo.
C1 noun/adjective /ˈmæm.əθ/

mammoth

mamut / gigante
Meaning
An extinct large elephant-like animal with long curved tusks; also means something huge.
Example
The company faced a mammoth challenge during expansion.
La empresa enfrentó un desafío gigante durante la expansión.
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 /ˈhɒrəˌskoʊp/

horoscope

horóscopo
Meaning
A forecast of a person's future based on the positions of the stars and planets at their birth.
Example
She read her horoscope every morning to see what the stars predicted.
Ella leía su horóscopo cada mañana para ver lo que las estrellas predijeron.
C1 adjective /ˈrep.jə.tə.bəl/

Reputable

respetable
Meaning
having a good reputation; respected and trusted
Example
She works for a reputable law firm in the city.
Ella trabaja para una firma de abogados de renombre en la ciudad.
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 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 adjective; noun /ɪˈmɔːrtl/

immortal

inmortal
Meaning
living forever; never dying; lasting forever in fame or memory
Example
Legends often describe heroes as immortal beings who never die.
Las leyendas describen a los héroes como inmortales.
C1 adjective /ɪnˈvæljʊəbl/

invaluable

invaluable
Meaning
Extremely useful or indispensable.
Example
Her advice proved invaluable to my success.
Su consejo resultó invaluable para mi éxito.
C1 adjective /ˈtep.ɪd/

Tepid

tibio
Meaning
only slightly warm; lukewarm; showing little enthusiasm
Example
The tea was tepid and unappetizing.
El té estaba tibio y poco apetitoso.
C1 adjective /ɪˈluː.sɪv/

Illusive

ilusorio; que parece existir pero no es real; engañoso
Meaning
deceptive; appearing to exist but not real; misleading
Example
The promise of easy money proved to be illusive and misleading.
La promesa de dinero fácil resultó ser ilusoria y engañosa.
C1 adjective /ʌnˈkwes.tʃən.ə.bl̩/

Unquestionable

indiscutible; seguro
Meaning
not able to be disputed or doubted; certain and beyond doubt
Example
Her honesty and integrity are unquestionable qualities.
Su honestidad e integridad son cualidades indiscutibles.
C1 noun/verb /ˈoʊvərˌhæŋ/

overhang

saliente
Meaning
To extend outward and hang over something; a projecting part.
Example
The roof overhang provides shade in the summer.
El alero proporciona sombra en el verano.
C1 adverb /ˈhed ɑn/

Head-on

de frente
Meaning
directly facing; in direct confrontation or collision
Example
The two cars collided head-on at the intersection.
Los dos autos colisionaron de frente en la intersección.
C1 noun /ˈproʊtəˌʒeɪ/

protege

protege
Meaning
a person who is guided and supported by an older and more experienced person
Example
The young artist was the protege of a famous painter.
El joven artista era el protegido de un pintor famoso.
C1 verb /mɔːrf/

morph

transformarse
Meaning
to change smoothly from one form, shape, or character into another
Example
The caterpillar will morph into a butterfly.
La oruga se transformará en una mariposa.
C1 verb /əˈkwɪt/

acquit

absolver
Meaning
to declare someone not guilty of a criminal charge; to conduct oneself in a specified way
Example
The jury decided to acquit the defendant of all charges.
El jurado decidió absolver al acusado de todos los cargos.
C1 noun /ænˈtæɡənɪzəm/

antagonism

antagonismo
Meaning
active hostility or opposition
Example
There was clear antagonism between the two political parties.
Había un claro antagonismo entre los dos partidos políticos.
C1 noun /ˈpɑːrlər/

parlor

salón, tienda
Meaning
A sitting room in a private house, or a shop providing specified services.
Example
They welcomed the guests into the front parlor.
Recibieron a los invitados en el salón principal.
C1 noun /pɪˌdɛs.tri.ə.naɪˈzeɪ.ʃən/

pedestrianization

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

simplistic

excesivamente simplificado
Meaning
treating complex issues as if they were much simpler than they really are
Example
His explanation was too simplistic and ignored key details.
Su explicación fue demasiado simplificada e ignoró detalles clave.
C1 noun ˌpɒlɪˈneɪʃən

Pollination

polinización
Meaning
The process by which pollen is transferred from flowers, enabling plant reproduction.
Example
Butterflies play a vital role in pollination.
Las mariposas juegan un papel vital en la polinización.
C1 noun /mɪˈsɑːdʒəni/

misogyny

misoginia
Meaning
Hatred of, contempt for, or prejudice against women.
Example
The novel has been criticized for promoting misogyny.
La novela ha sido criticada por promover la misoginia.
C1 noun /ˈwiː.vər bɜːd/

Weaver bird

pájaro tejedor
Meaning
a small bird that builds elaborate woven nests from grass and twigs
Example
The weaver bird skillfully constructs its intricate nest.
El pájaro tejedor construye hábilmente su nido intrincado
C1 verb /ɪˈkweɪt/

equate

equiparar
Meaning
To consider as equal or equivalent.
Example
Many people equate wealth with success.
Muchas personas equiparan la riqueza con el éxito.
C1 noun /lɔnˈdʒɛvəti/

longevity

longevidad
Meaning
Long life or long existence of something.
Example
Good habits contribute to health and longevity.
Los buenos hábitos contribuyen a la salud y longevidad.
C1 noun ɪkˌstræp.əˈleɪ.ʃən

extrapolation

extrapolación
Meaning
The action of estimating or concluding something by assuming that existing trends will continue.
Example
His extrapolation of market trends helped in financial planning.
Su extrapolación de las tendencias del mercado ayudó en la planificación financiera.
C1 noun /djuːn/

dune

duna
Meaning
A hill or ridge of sand formed by the wind, usually found in deserts or near beaches.
Example
The children played on the sand dune by the beach.
Los niños jugaban en la duna de arena junto a la playa.
C1 noun

Longitude

longitud geográfica
C1 noun ˌdɪs.æmˌbɪɡ.juˈeɪ.ʃən

disambiguation

desambiguación
Meaning
The removal of ambiguity by making something clear and unambiguous.
Example
The AI system applies disambiguation to refine text understanding.
El sistema de IA aplica la disambiguación para refinar la comprensión del texto.
C1 verb /nɪˈɡeɪt/

negate

negar, invalidar
Meaning
To cancel out or make ineffective; to deny the truth of something.
Example
The new evidence will negate the claims made earlier.
Las nuevas pruebas invalidarán las afirmaciones hechas anteriormente.
C1 adjective /ɪnˈflɛksəbl/

inflexible

inflexible
Meaning
Not able to bend or change; unwilling to change ideas or behavior.
Example
His inflexible attitude made negotiations difficult.
Su actitud inflexible dificultó las negociaciones.
C1 noun /ˌrek.ənˌsɪl.iˈeɪ.ʃən/

reconciliation

reconciliación
Meaning
The restoration of friendly relations; the action of making one view or belief compatible with another.
Example
The peace treaty was a major step toward reconciliation.
El tratado de paz fue un paso importante hacia la reconciliación.
C1 noun /bɒɡ/

bog

pantano
Meaning
an area of wet, spongy ground; a swamp or marsh
Example
The hikers got stuck in a bog.
Los excursionistas se quedaron atrapados en un pantano.
C1 adjective /prəˈdɪdʒəs/

prodigious

prodigioso
Meaning
remarkably or impressively great in extent, size, or degree
Example
The team made a prodigious effort to complete the project on time.
El equipo hizo un esfuerzo prodigioso para completar el proyecto a tiempo.
C1 noun prəˈkjʊrmənt

procurement

adquisición
Meaning
The action of obtaining or procuring something, especially for official purposes.
Example
The procurement of modern equipment has improved research accuracy.
La adquisición de equipo moderno ha mejorado la precisión de la investigación.
C1 verb /ˈkænvəs/

canvass

solicitar votos
Meaning
to solicit votes or opinions; to examine thoroughly; to discuss in detail
Example
They will canvass the neighborhood for votes.
Ellos harán campaña en el vecindario para obtener votos.
C1 noun /ˈɪn.tə.lekt/

intellect

intelecto
Meaning
The ability to think, reason, and understand objectively.
Example
Her intellect is admired by all her colleagues.
Su intelecto es admirado por todos sus colegas.
C1 verb /ˌʌndərˈlaɪ/

underlie

subyacer
Meaning
to be the hidden cause or basis of something
Example
Strong cultural traditions underlie the community's practices.
Las fuertes tradiciones culturales subyacen a las prácticas de la comunidad.
C1 verb /ˌsuːpərˈsiːd/

supersede

reemplazar
Meaning
To replace or take the place of something because it is more modern or effective.
Example
This new law will supersede the old regulations.
Esta nueva ley reemplazará las viejas regulaciones.
C1 noun /ˈɑːrmfʊl/

armful

brazo lleno
Meaning
As much as can be carried in one or both arms.
Example
She carried an armful of books into the library.
Ella llevó un brazo lleno de libros a la biblioteca.
C1 adjective /ˈzɛsti/

zesty

picante
Meaning
Having a strong, pleasant, and somewhat spicy flavor; full of energy and enthusiasm.
Example
The dish had a zesty flavor that everyone loved.
El plato tenía un sabor picante que a todos les encantó.
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 adjective /ˈkɔː.zəl/

causal

causal
Meaning
relating to or acting as a cause
Example
There is a causal link between smoking and cancer.
Existe una relación causal entre fumar y el cáncer.
C1 noun /huːf/

Hoof

pezuña
Meaning
the hard part covering the foot of horses, cattle, sheep, and other animals
Example
The horse's hoof was injured after stepping on a sharp rock.
La pezuña del caballo se lesionó después de pisar una roca afilada.
C1 noun /ˈvɪdʒ.ɪ.ləns/

vigilance

vigilancia
Meaning
The action or state of keeping careful watch for possible danger or difficulties.
Example
Constant vigilance is required in cybersecurity.
Se requiere vigilancia constante en ciberseguridad.
C1 noun /ˌsaɪkoʊˈθɛrəpi/

psychotherapy

psicoterapia
Meaning
The treatment of mental disorder by psychological rather than medical means.
Example
She attended weekly psychotherapy sessions to cope with her anxiety.
Ella asistió a sesiones semanales de psicoterapia para lidiar con su ansiedad.
C1 adjective /ˌhaɪdroʊɪˈlɛktrɪk/

hydroelectric

hidroeléctrico
Meaning
Relating to or denoting the generation of electricity using flowing water.
Example
The country invested heavily in hydroelectric power plants.
El país invirtió fuertemente en plantas de energía hidroeléctrica.
C1 adjective /rɪˈvoʊltɪŋ/

revolting

repugnante
Meaning
extremely unpleasant or disgusting
Example
The smell of the garbage was revolting.
El olor de la basura era repugnante.
C1 noun ˌmɪtɪˈɡeɪʃən ˈstrætədʒiz

mitigation strategies

estrategias de mitigación
Meaning
Plans and actions designed to reduce the severity or impact of problems or risks.
Example
Governments must adopt mitigation strategies for climate change.
Los gobiernos deben adoptar estrategias de mitigación para el cambio climático.
C1 adjective /ˈvɪrjʊlənt/

virulent

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