skeptic
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C1 noun /ˈskɛptɪk/

skeptic

escéptico
Meaning
A person who doubts or questions accepted beliefs or claims.
Example
The scientist was a skeptic of theories without solid evidence.
El científico era escéptico de las teorías sin evidencia sólida.
C1 adjective /ˈmɔːtəl/

Mortal

mortal; perecedero; humano
Meaning
subject to death; having a limited lifespan; human
Example
All human beings are mortal and will eventually die.
Todos los seres humanos son mortales y eventualmente morirán.
C1 adjective /ˈpær.ə.nɔɪd/

paranoid

tener un miedo o sospecha irracional hacia los demás
Meaning
having an unreasonable fear or suspicion of others
Example
She became paranoid after hearing strange noises outside.
Se volvió paranoica después de escuchar ruidos extraños afuera.
C1 verb /fɔːrˈkloʊz/

foreclose

embargar
Meaning
to take possession of a property due to the owner's failure to keep up mortgage payments
Example
The bank decided to foreclose on the property after months of missed payments.
El banco decidió embargar la propiedad después de meses de pagos perdidos.
C1 noun /ˈeɪ.kər.ɪdʒ/

acreage

hectárea
Meaning
An area of land measured in acres.
Example
The farmer owns a large acreage of fertile land.
El agricultor posee una gran hectárea de tierra fértil.
C1 adjective /ˌɪnkənˈsɪdərət/

inconsiderate

desconsiderado
Meaning
Thoughtless; showing a lack of concern for others.
Example
It was inconsiderate of him to play loud music late at night.
Fue desconsiderado de su parte poner música alta tarde en la noche.
C1 noun /dʌsk/

Dusk

oscurecer; anochecer
Meaning
the period of the day when daylight is fading; twilight
Example
They walked along the beach during dusk, watching the sunset.
Caminaban por la playa durante el atardecer, viendo la puesta del sol.
C1 noun /ˈræmpɑːrt/

rampart

murallas
Meaning
a defensive wall of a castle or fort
Example
The soldiers stood on the rampart, watching the enemy approach.
Los soldados se pararon en la muralla, observando acercarse al enemigo.
C1 verb ɪˈmɜːrs

immerse

sumergir
Meaning
To involve oneself deeply in a particular activity or interest; to surround completely.
Example
Immerse yourself in the new language.
Sumérgete en el nuevo idioma.
C1 noun ˌdɪdʒɪˈnɛəreɪʃən

degeneration

degeneración
Meaning
The process of decline or deterioration in structure or function.
Example
The degeneration of brain cells leads to cognitive decline.
La degeneración de las células cerebrales conduce a un deterioro cognitivo.
C1 noun /ˈneɡ.lɪ.dʒəns/

Negligence

negligencia
Meaning
failure to take proper care in doing something; carelessness
Example
The accident was caused by driver negligence.
El accidente fue causado por negligencia del conductor.
C1 adjective /ˈɪndɪɡoʊ bluː/

Indigo-blue

azul índigo
Meaning
a deep blue color with a purplish tinge
Example
The indigo-blue sky looked magnificent at twilight.
El cielo azul índigo se veía magnífico al atardecer.
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 /ˌɔːtəˈkrætɪk/

autocratic

autocrático
Meaning
Relating to a ruler who has absolute power and does not consult others.
Example
The manager’s autocratic style discouraged employees from sharing their ideas.
El estilo autocrático del gerente desalentó a los empleados de compartir sus ideas.
C1 noun /ˌtɒləˈreɪʃən/

toleration

tolerancia
Meaning
The practice of allowing something that one does not necessarily agree with.
Example
The government promoted religious toleration.
El gobierno promovió la tolerancia religiosa.
C1 adjective ˈkwɒn.tɪ.faɪ.ə.bəl

quantifiable

cuantificable
Meaning
Able to be expressed or measured as a quantity; capable of being counted or calculated.
Example
The impact of the project is quantifiable.
El impacto del proyecto es cuantificable.
C1 adjective /ˈrek.wɪ.zɪt/

Requisite

requisito; necesario
Meaning
made necessary by particular circumstances; required
Example
Good communication skills are requisite for this job.
Las habilidades de comunicación son requisito para este trabajo.
C1 noun /ɡræft/

Graft

injerto; corrupción
Meaning
a shoot or twig inserted into a slit on the trunk of a living tree to form a new growth; corruption in politics or business
Example
The gardener used a graft to combine different varieties of apple trees.
El jardinero utilizó un injerto para combinar diferentes variedades de manzanos.
C1 noun /ˈmʌltɪtuːd/

multitude

multitud
Meaning
A large number of people or things.
Example
A multitude of fans gathered at the stadium.
Una multitud de fanáticos se reunió en el estadio.
C1 noun /ˈoʊ.mən/

Omen

presagio de buena o mala suerte futura
Meaning
an event regarded as a sign of future good or bad luck
Example
Many people consider a black cat crossing your path a bad omen.
Muchas personas consideran que un gato negro cruzando tu camino es un mal presagio.
C1 noun /ænˈθɒlədʒi/

anthology

antología
Meaning
A collection of literary works, such as poems, short stories, or essays, compiled into one volume.
Example
She contributed a poem to the new poetry anthology.
Ella contribuyó con un poema a la nueva antología de poesía.
C1 adjective /kræs/

crass

tosco, sin sensibilidad o refinamiento
Meaning
lacking sensitivity, refinement, or intelligence
Example
His crass remarks offended everyone at the meeting.
Sus comentarios groseros ofendieron a todos en la reunión.
C1 adjective ˈluː.sɪd

lucid

claro y fácil de entender
Meaning
Clear and easily understandable thoughts or explanations.
Example
His explanation was so lucid that everyone understood it.
Su explicación era tan clara que todos la entendieron.
C1 noun ˈælərdʒən

allergen

sustancia que causa una reacción alérgica
Meaning
A substance that causes an allergic reaction.
Example
Pollen is a common allergen that affects many people.
El polen es un alérgeno común que afecta a muchas personas.
C1 noun /slæb/

slab

losa
Meaning
a large, thick, flat piece of stone, concrete, or other hard material
Example
The workers laid a concrete slab for the foundation.
Los trabajadores colocaron una losa de concreto para la fundación.
C1 adjective, noun /ˈbʊrʒ.wɑː/

bourgeois

burgués
Meaning
Relating to the middle class, often with materialistic values or conventional attitudes.
Example
The novel criticizes the bourgeois lifestyle of the city dwellers.
La novela critica el estilo de vida burgués de los habitantes de la ciudad.
C1 adjective /ˈpiːkənt/

piquant

picante
Meaning
having a pleasantly sharp or spicy taste; interestingly provocative
Example
The chef added a piquant sauce to the dish to enhance its flavor.
El chef añadió una salsa picante al plato para realzar su sabor.
C1 adjective /ˈpæl.ɪd/

Pallid

pálido, especialmente por mala salud; falta de sustancia o vitalidad
Meaning
pale, especially because of poor health; lacking substance or vitality
Example
His pallid complexion showed signs of illness.
Su rostro pálido mostraba signos de enfermedad.
C1 adjective /ɪˈnæmərd/

enamored

enamorado
Meaning
filled with love or admiration
Example
He became enamored with classical music after attending the concert.
Se enamoró de la música clásica después de asistir al concierto.
C1 noun /sloʊθ/

Sloth

pereza; reluctancia a trabajar o hacer un esfuerzo
Meaning
laziness; reluctance to work or make an effort
Example
His sloth prevented him from achieving his goals.
Su pereza le impidió alcanzar sus metas.
C1 adjective /ˈɡæstrɪk/

gastric

gástrico / problemas del estómago
Meaning
Relating to the stomach.
Example
She was prescribed medicine for her gastric problems.
Ella fue recetada con medicina para sus problemas gástricos.
C1 adjective /ˈlæk.tɪk/

lactic

relacionado con la leche o el ácido láctico
Meaning
Relating to milk or lactic acid.
Example
Intense exercise can lead to a buildup of lactic acid in the muscles.
El ejercicio intenso puede causar una acumulación de ácido láctico en los músculos.
C1 verb /rɪˈdiːm/

redeem

redimir
Meaning
to compensate for faults or mistakes; to exchange something for value
Example
He managed to redeem his reputation after the scandal.
Él logró redimir su reputación después del escándalo.
C1 adjective /rɪˈsɔːrs ɪˈfɪʃ.ənt/

resource-efficient

eficiente en el uso de recursos
Meaning
Using resources in a way that minimizes waste and maximizes productivity.
Example
Resource-efficient farming conserves water and energy.
La agricultura eficiente en el uso de recursos conserva agua y energía.
C1 noun /kwæk/

Quack

charlatán
Meaning
a person who pretends to be a doctor but has no medical training; the sound a duck makes
Example
People should be careful not to trust medical advice from a quack.
Las personas deben tener cuidado de no confiar en consejos médicos de un charlatán.
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 adjective ɡəˈlæktɪk

galactic

relacionado con la galaxia
Meaning
Of or relating to a galaxy or galaxies.
Example
The galactic phenomena observed by the telescope were mesmerizing.
Los fenómenos galácticos observados por el telescopio fueron fascinantes.
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 /ˌæntiˈsleɪvəri/

antislavery

antiesclavismo
Meaning
Opposed to the practice or system of slavery.
Example
The antislavery movement gained momentum in the 19th century.
El movimiento antiesclavista cobró impulso en el siglo XIX.
C1 noun /ˈtrɪb.jə.ter.i/

Tributary

afluente
Meaning
a river or stream flowing into a larger river or lake
Example
The tributary joins the main river near the city.
El afluente se une al río principal cerca de la ciudad.
C1 noun ˈmaɪ.krəʊˌnjuː.tri.ənt

micronutrient

micronutriente
Meaning
Essential nutrients required by the body in small amounts, including vitamins and minerals.
Example
Iron and zinc are essential micronutrients for growth.
El hierro y el zinc son micronutrientes esenciales para el crecimiento.
C1 noun /rɪˈtrækʃən/

retraction

revocación, retractación
Meaning
the act of taking back a statement, promise, or belief
Example
The newspaper issued a retraction of the false report.
El periódico emitió una retractación del informe falso.
C1 adjective /ˈdesələt/

Desolate

desierto; solitario; árido
Meaning
deserted; lonely; barren
Example
The abandoned village looked desolate and empty.
El pueblo abandonado se veía desolado y vacío.
C1 adjective /ˈwɪr.i.səm/

Wearisome

agotador; tedioso y aburrido
Meaning
causing tiredness; tedious; boring and exhausting
Example
The wearisome journey took twelve hours to complete.
El agotador viaje tomó doce horas para completarse.
C1 noun /vəˈræs.ə.ti/

veracity

veracidad
Meaning
Conformity to facts; accuracy and truthfulness.
Example
The journalist checked the veracity of the report.
El periodista verificó la veracidad del informe.
C1 adjective /məˈkɑː.brə/

Macabre

macabro
Meaning
disturbing because concerned with death; gruesome and horrifying
Example
The horror movie had a macabre atmosphere.
La película de terror tenía una atmósfera macabra.
C1 noun/adjective /kənˈfɛdərət/

confederate

confederado
Meaning
a person, group, or state joined in an alliance or union; relating to a confederacy
Example
The confederate soldiers fought bravely in the war.
Los soldados confederados lucharon valientemente en la guerra.
C1 adjective /ɔːˈstɪə/

austere

austero, sencillo
Meaning
Severe or strict in manner, attitude, or appearance; plain and simple.
Example
The monk lived an austere life in the mountains.
El monje vivió una vida austera en las montañas.
C1 verb ɪˈluːd

elude

eludir
Meaning
Evade or escape from, typically in a skillful or cunning way; avoid being caught.
Example
The thief managed to elude the police.
El ladrón logró eludir a la policía.
C1 adjective ˌmɒn.jʊˈmɛn.təl

monumental

de gran importancia, extensión o tamaño
Meaning
Great in importance, extent, or size; exceptionally great; forming or serving as a monument.
Example
The discovery of electricity was a monumental achievement.
El descubrimiento de la electricidad fue un logro monumental.
C1 verb /broʊtʃ/

broach

abordar
Meaning
to bring up a subject for discussion
Example
She decided to broach the topic of salary with her manager.
Ella decidió abordar el tema del salario con su jefe.
C1 adjective /ˈpriːmə/

prima

principal, excelente
Meaning
first or most important; excellent
Example
She was treated as the prima ballerina of the troupe.
Ella fue tratada como la prima bailarina del grupo.
C1 noun ˌmɛtə ˈmɔːfəsɪs

metamorphosis

metamorfosis, transformación
Meaning
A change of the form or nature of a thing or person into a completely different one, by natural or supernatural means.
Example
The company's metamorphosis from a small startup to a global leader was remarkable.
La metamórfosis de la empresa de una pequeña startup a un líder global fue notable.
C1 noun ˌɪm.pʌlˈsɪv.ɪ.ti

impulsivity

impulsividad
Meaning
The tendency to act quickly and without thought or care; lack of self-control.
Example
His impulsivity led him to make reckless choices.
Su impulsividad lo llevó a tomar decisiones imprudentes.
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 /kəʊˈhiːʒən/

cohesion

cohesión
Meaning
The action or fact of forming a united whole.
Example
The team showed excellent cohesion throughout the project.
El equipo mostró excelente cohesión durante el proyecto.
C1 noun /haɪˈpɜːrbəli/

hyperbole

hipérbole
Meaning
Exaggerated statements or claims not meant to be taken literally.
Example
Saying he could run a thousand miles in a day is pure hyperbole.
Decir que podría correr mil millas en un día es pura hipérbole.
C1 noun /ˌdɪs.əˈreɪ/

disarray

desorden
Meaning
A state of disorganization or untidiness; confusion or disorder.
Example
His desk was in complete disarray.
Su escritorio estaba en completo desorden.
C1 verb /kənˈkɒkt/

concoct

crear o inventar
Meaning
to make something, especially food or a story, by mixing or inventing
Example
He concocted a story to explain his absence.
Él inventó una historia para explicar su ausencia.
C1 noun /ˌdɛfəˈmeɪʃən/

defamation

difamación
Meaning
the act of damaging someone's reputation by making false statements
Example
The newspaper was sued for defamation of character.
El periódico fue demandado por difamación.
C1 adjective /ˈfuːlpruːf/

foolproof

a prueba de tontos
Meaning
Designed to be very easy to use or understand, leaving no possibility of failure or error.
Example
The new software has a foolproof installation process.
El nuevo software tiene un proceso de instalación a prueba de tontos.
C1 noun /təˈnæs.ə.ti/

tenacity

tenacidad
Meaning
Determination, persistence, and the quality of not giving up
Example
His tenacity in solving problems led to his success.
Su tenacidad para resolver problemas lo llevó al éxito.
C1 noun /ˈkʌvənənt/

covenant

pacto
Meaning
a formal agreement or promise, often legally binding
Example
The landlord and tenant signed a covenant to maintain the property.
El arrendador y el inquilino firmaron un pacto para mantener la propiedad.
C1 noun /ˈprɛsɪpɪs/

precipice

precipicio
Meaning
A very steep cliff or a situation of great danger.
Example
The hikers stood at the edge of the precipice, gazing into the valley below.
Los excursionistas estaban de pie al borde del precipicio, mirando el valle abajo.
C1 verb /dɪsˈsætɪsfaɪ/

dissatisfy

desacontentar
Meaning
to fail to please or meet expectations; to make someone unhappy
Example
The poor service dissatisfies many customers.
El mal servicio disatisface a muchos clientes.
C1 adjective /ˈɡrɪz.li/

grisly

espantoso
Meaning
causing horror or disgust
Example
The police discovered a grisly scene at the crime site.
La policía descubrió una escena espantosa en el lugar del crimen.
C1 noun /bɑːrb/

barb

pua, comentario hiriente
Meaning
a sharp projection such as on a fishhook; a cutting remark
Example
The fishhook has a small barb to keep the fish from escaping.
El anzuelo de pesca tiene una pequeña pua para evitar que el pez se escape.
C1 noun /ˈhɔː.kər/

Hawker

vendedor ambulante
Meaning
a person who travels about selling goods, typically from door to door or on the street
Example
The hawker sold fresh fruits from his cart.
El vendedor ambulante vendió frutas frescas desde su carrito.
C1 noun /ˈwɔː.tər hen/

Water hen

gallineta
Meaning
a waterbird with dark plumage that lives near ponds and wetlands
Example
The water hen swam gracefully across the pond.
La gallineta nadó elegantemente a través del estanque.
C1 adverb /əˈnjuː/

anew

de nuevo
Meaning
In a new or different way; once more.
Example
After the failure, she decided to start her life anew.
Después del fracaso, decidió comenzar su vida de nuevo.
C1 noun /rɪˈkluːs/

recluse

recluso
Meaning
A person who lives alone and avoids other people; someone who lives a solitary life.
Example
The old man lived as a recluse in the mountains.
El anciano vivió como un recluso en las montañas.
C1 adjective /ɪɡˈzɔːr.bɪ.tənt/

exorbitant

exorbitante
Meaning
Unreasonably high in price or cost; excessive.
Example
The hotel charged an exorbitant price for a basic room.
El hotel cobró un precio exorbitante por una habitación básica.
C1 noun /ˈpɛdɪɡriː/

pedigree

linaje
Meaning
the recorded ancestry or lineage of a person, family, or animal; the history or origin of something
Example
The dog has a pedigree that traces back several generations.
El perro tiene un linaje que rastrea varias generaciones atrás.
C1 noun moʊst ˈvʌlnərəbəl ˈneɪʃən

most vulnerable nation

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

exponent

exponente
Meaning
a person who supports, promotes, or explains an idea; in math, a symbol denoting power
Example
She is a leading exponent of modern dance.
Ella es una de las principales exponentes de la danza moderna.
C1 verb /ˈprɒpəɡeɪt/

propagate

propagar
Meaning
To spread or transmit an idea, belief, or information widely; also to reproduce in plants or animals.
Example
Scientists work to propagate the species in captivity.
Los científicos trabajan para propagar las especies en cautiverio.
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 verb /ˈɪnkjʊˌbeɪt/

incubate

incubar
Meaning
to keep eggs, cells, or organisms at the right conditions for development
Example
The hen will incubate the eggs until they hatch.
La gallina incubará los huevos hasta que eclosionen.
C1 adjective /ɪnˈsɒlvənt/

insolvent

insolvente
Meaning
unable to pay debts owed
Example
The insolvent firm could not meet its financial obligations.
La empresa insolvente no pudo cumplir con sus obligaciones financieras.
C1 verb /spɔːn/

spawn

generar
Meaning
to produce or generate, often in large numbers
Example
The video game has spawned many sequels.
El videojuego ha generado muchas secuelas.
C1 noun ˌnæn.oʊ.tekˈnɒl.ə.dʒi

nanotechnology

nanotecnología
Meaning
The branch of technology that deals with dimensions and tolerances of less than 100 nanometers.
Example
Nanotechnology is advancing medical treatments.
La nanotecnología está avanzando en los tratamientos médicos.
C1 verb /səˈlɪsɪt/

solicit

solicitar
Meaning
to ask for or try to obtain something from someone
Example
The charity is soliciting donations for flood victims.
La caridad está solicitando donaciones para las víctimas de las inundaciones.
C1 verb /ɜːr/

err

errar
Meaning
to make a mistake or be incorrect
Example
To err is human, to forgive divine.
Errar es humano, perdonar es divino.
C1 adjective ɛnˈdɛm.ɪk

endemic

endémico
Meaning
Native and restricted to a certain place.
Example
The Bengal tiger is endemic to the Indian subcontinent.
El tigre de Bengala es endémico del subcontinente indio.
C1 adjective /ˈsliːzi/

sleazy

de mala calidad, inmoral o barato
Meaning
morally low, dirty, or cheap in quality
Example
He avoided the sleazy nightclub downtown.
Él evitó el club nocturno sórdido en el centro.
C1 verb /ɪˈdʒektɪd/

ejected

expulsar
Meaning
to force someone or something to leave a place; to push or throw something out forcefully
Example
The pilot was ejected from the aircraft during the emergency.
El piloto fue expulsado del avión durante la emergencia.
C1 noun /bɑːrˈbeəriən/

Barbarian

bárbaro; salvaje;
Meaning
a person from an uncivilized group; someone who is cruel or brutal
Example
The ancient Romans considered anyone outside their empire to be barbarians.
Los antiguos romanos consideraban bárbaros a todos los que estaban fuera de su imperio.
C1 noun /ˈjuːnɪsən/

unison

al unísono
Meaning
Simultaneous performance or utterance of action or speech.
Example
The choir sang in unison.
El coro cantó al unísono.
C1 noun /oʊˈbɪt.ʃu.er.i/

Obituary

obituario
Meaning
a notice of someone's death published in a newspaper; biographical account of deceased person
Example
The newspaper published his obituary yesterday.
El periódico publicó su obituario ayer.
C1 adjective /ˈsɔːsi/

saucy

atrevido
Meaning
Boldly rude, cheeky, or playfully disrespectful.
Example
The child gave a saucy reply to his teacher.
El niño dio una respuesta atrevida a su maestro.
C1 noun /kɑst/

Caste

casta; sistema de castas
Meaning
a social class system; a hereditary class of Hindu society
Example
The ancient caste system divided society into different social groups.
El antiguo sistema de castas dividió la sociedad en diferentes grupos sociales.
C1 adverb /ˌɪn.dɪˈskrɪm.ɪ.nət.li/

Indiscriminately

indiscriminadamente
Meaning
without making careful distinctions; randomly; without discrimination
Example
The company fired employees indiscriminately without considering their performance.
La empresa despidió a los empleados indiscriminadamente sin considerar su rendimiento.
C1 noun /ˌɔːkʃəˈnɪər/

auctioneer

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

gravitas

gravedad
Meaning
Dignity, seriousness, or solemnity of manner or speech.
Example
The judge spoke with great gravitas.
El juez habló con gran gravedad.
C1 noun /ˈænəɡræm/

anagram

una palabra o frase formada reordenando las letras de otra palabra o frase.
Meaning
A word or phrase formed by rearranging the letters of another word or phrase.
Example
The word 'listen' is an anagram of 'silent'.
La palabra 'listen' es un anagrama de 'silent'.
C1 adjective /dɪˈfʌŋkt/

defunct

fuera de servicio, desaparecido
Meaning
No longer existing, operating, or functioning.
Example
The company became defunct after the financial crisis.
La empresa se volvió defunta después de la crisis financiera.
C1 noun /mɑːrʃ/

Marsh

pantano
Meaning
An area of low-lying land that is flooded in wet seasons or at high tide
Example
The endangered birds built their nests in the protected marsh.
Las aves en peligro de extinción construyeron sus nidos en el pantano protegido.
C1 adjective /ˈsiː.di/

Seedy

lleno de semillas; sucio y despreciable; en mal estado
Meaning
squalid and disreputable; shabby and run-down; full of seeds
Example
They avoided walking through the seedy part of town at night.
Ellos evitaban caminar por la parte sucia y despreciable de la ciudad por la noche.
C1 adjective /ˌruː.dɪˈmen.tər.i/

Rudimentary

básico; elemental; subdesarrollado; en la etapa más temprana del desarrollo
Meaning
basic; elementary; undeveloped; in the earliest stage of development
Example
She has only rudimentary knowledge of French.
Ella solo tiene conocimiento rudimentario del francés.
C1 noun /ˈmætrəˌmoʊni/

matrimony

matrimonio
Meaning
The state of being married; marriage.
Example
They entered into matrimony after years of friendship.
Entraron en el matrimonio después de años de amistad.
C1 noun /ɡriːn ˈkəʊ.kə.nʌt/

Green Coconut

coco verde
Meaning
a young coconut with green outer shell containing refreshing coconut water
Example
We drank fresh water from a green coconut on the beach.
Bebimos agua fresca de un coco verde en la playa.
C1 noun /ˈɒktɪv/

octave

octava
Meaning
A series of eight musical notes, or the interval between one musical pitch and another with double its frequency.
Example
The singer's voice could easily reach the higher octave.
La voz del cantante podría alcanzar fácilmente la octava más alta.
C1 noun /ˈprɒksi/

proxy

representante
Meaning
A person authorized to act on behalf of another; a substitute.
Example
She voted by proxy at the meeting.
Ella votó por proxy en la reunión.
C1 adjective /ˈspɪndli/

spindly

delgado y débil
Meaning
Long, thin, and weak-looking
Example
The spindly tree bent under the weight of the snow.
El árbol delgado se inclinó bajo el peso de la nieve.
C1 noun ˈkeɪ.dəns

cadence

ritmo de habla con subida y bajada de tono
Meaning
The rhythm and flow of speech with rise and fall in tone.
Example
His speech had a natural cadence that captivated the audience.
Su discurso tenía una cadencia natural que cautivó a la audiencia.
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 adjective /ˌɪntərˈtʃeɪndʒəbl/

interchangeable

intercambiable
Meaning
able to be exchanged with each other without difference or loss of function
Example
These machine parts are interchangeable, so they can be replaced easily.
Estas piezas de la máquina son intercambiables, por lo que se pueden reemplazar fácilmente.
C1 adjective /ˌdɪktəˈtɔːriəl/

dictatorial

dictatorial
Meaning
Having or showing a tendency to tell people what to do in an autocratic way.
Example
His dictatorial style made him unpopular among colleagues.
Su estilo dictatorial lo hizo impopular entre los compañeros de trabajo.
C1 adjective /əˈbreɪsɪv/

abrasive

áspero, rugoso o capaz de desgastar por frotamiento
Meaning
harsh, rough, or capable of wearing down by rubbing
Example
His abrasive tone made everyone uncomfortable.
Su tono áspero hizo que todos se sintieran incómodos.
C1 verb/noun /ˈsɒldər/

solder

soldar
Meaning
To join metal parts together by melting and putting a filler metal into the joint
Example
He soldered the broken wires back together.
Él soldó los cables rotos de nuevo.
C1 noun /ˈwɔːtəʃɛd/

watershed

punto de inflexión, línea divisoria
Meaning
An event or period marking a turning point in a situation; also refers to a ridge dividing two drainage areas.
Example
The independence movement was a watershed in the nation's history.
El movimiento de independencia fue un punto de inflexión en la historia de la nación.
C1 verb /ˈlɪŋɡər/

linger

quedarse más tiempo del necesario
Meaning
to stay in a place longer than necessary; to persist
Example
The smell of coffee lingered in the kitchen.
El aroma del café permaneció en la cocina por más tiempo.
C1 noun /ˈpæd.ək/

paddock

campo cerrado para caballos u otros animales
Meaning
a small enclosed field where horses or other animals are kept
Example
The horses were grazing in the paddock.
Los caballos estaban pastando en el paddock.
C1 adjective /kənˈtɪɡ.ju.əs/

contiguous

contiguo
Meaning
sharing a common border; touching
Example
The two continguous houses shared a wall.
Las dos casas contiguas compartieron una pared.
C1 verb /ˌmɪsˈpleɪs/

misplace

poner en el lugar equivocado
Meaning
To put something in the wrong location and temporarily lose it.
Example
I often misplace my keys when I am in a hurry.
A menudo pongo mis llaves en el lugar equivocado cuando tengo prisa.
C1 noun /ˈʃrɪŋkɪdʒ/

shrinkage

encogimiento
Meaning
The process of becoming smaller in size, amount, or value.
Example
The company reported a shrinkage in profits this quarter.
La empresa reportó un encogimiento en las ganancias de este trimestre.
C1 adjective /ˈtɪərfəl/

Tearful

lloroso; inclinado a llorar
Meaning
expressing or showing sadness and sorrow; inclined to weep
Example
She gave a tearful goodbye to her friends at the airport.
Ella dio una despedida llorosa a sus amigos en el aeropuerto.
C1 noun /ˈɪntrɪkəsi/

intricacy

complejidad
Meaning
the quality of being very detailed or complicated
Example
The intricacy of the design impressed everyone.
La complejidad del diseño impresionó a todos.
C1 noun /təˈbuː/

taboo

tabú
Meaning
a social or cultural prohibition against certain practices or discussions
Example
Talking about money is considered a taboo in some cultures.
Hablar de dinero se considera un tabú en algunas culturas.
C1 verb /pəˈruːz/

peruse

felicidad
Meaning
to read something carefully and thoroughly; sometimes used to mean to browse casually
Example
She sat down to peruse the contract before signing it.
Ella no podía ocultar su felicidad cuando recibió el premio.