confederacy
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C1 noun /kənˈfɛdərəsi/

confederacy

confederación
Meaning
a group of states, people, or organizations united for a common purpose
Example
The southern states formed a confederacy during the civil war.
Los estados del sur formaron una confederación durante la guerra civil.
C1 adjective /ˈpjuːtrɪd/

putrid

podrido
Meaning
decayed and emitting a foul smell
Example
The garbage smelled putrid after days in the sun.
La basura olía a podrido después de varios días al sol.
C1 verb /proʊˈtruːd/

protrude

sobresalir
Meaning
To stick out or extend beyond a surface.
Example
A nail was protruding from the wooden board.
Un clavo sobresalía desde la tabla de madera.
C1 noun /ˈlaɪm.stoʊn/

Lime stone

piedra caliza
Meaning
a hard sedimentary rock, composed mainly of calcium carbonate or dolomite, used as building material and in the making of cement
Example
The ancient building was made of limestone blocks.
El antiguo edificio estaba hecho de bloques de piedra caliza
C1 adjective /ɪnˈdʒʊəriəs/

injurious

perjudicial
Meaning
Causing or likely to cause harm or damage.
Example
Smoking is injurious to health.
Fumar es perjudicial para la salud.
C1 noun /ˈpæstər/

pastor

pastor
Meaning
a minister in charge of a Christian church or congregation
Example
The pastor delivered a heartfelt sermon on compassion.
El pastor dio un sermón lleno de compasión.
C1 adjective /ʌnˈkuːθ/

uncouth

grosero
Meaning
Lacking good manners, refinement, or grace; awkward or rough.
Example
His uncouth behavior shocked the guests at the party.
Su comportamiento grosero sorprendió a los invitados en la fiesta.
C1 adjective /ˈɛntərˌpraɪzɪŋ/

enterprising

emprendedor
Meaning
showing initiative and resourcefulness; willing to take risks to achieve success
Example
She is an enterprising young entrepreneur.
Ella es una joven emprendedora emprendedora.
C1 adjective /ˈpɔːltri/

paltry

insignificante, trivial
Meaning
small or meager; lacking in value or importance
Example
They offered him a paltry sum for his work.
Le ofrecieron una suma insignificante por su trabajo.
C1 adjective /əˈniːmɪk/

anemic

anémico
Meaning
Suffering from anemia; lacking in vitality, strength, or color.
Example
The doctor prescribed iron supplements for her anemic condition.
El doctor recetó suplementos de hierro para su condición anémica.
C1 noun /rɪˈvɒl.vər/

Revolver

revólver
Meaning
a pistol with revolving chambers enabling several shots to be fired without reloading
Example
The detective drew his revolver from its holster.
El detective sacó su revólver de su funda.
C1 adjective /ɪˈspeʃəl/

especial

especial
Meaning
Particularly remarkable or significant; distinguished from others
Example
This is an especial opportunity you should not miss.
Esta es una oportunidad especial que no debes perder.
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 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 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 verb /ˈɔːstrəˌsaɪz/

ostracize

ostracizar
Meaning
to exclude someone from a group or society; to banish or shun
Example
After the scandal, he was ostracized by his former colleagues.
Después del escándalo, fue ostracizado por sus antiguos compañeros de trabajo.
C1 noun /krʊk/

crook

delincuente
Meaning
a dishonest person, especially a criminal
Example
The police finally caught the crook who had been stealing cars.
La policía finalmente atrapó al delincuente que había estado robando autos.
C1 adjective /fəˈnætɪkəl/

fanatical

fanático
Meaning
showing extreme enthusiasm or obsession
Example
She has a fanatical interest in collecting vintage stamps.
Ella tiene un interés fanático en coleccionar sellos antiguos.
C1 verb /dɪˈplɔːr/

deplore

deplorar
Meaning
to feel or express strong disapproval of something; to regret deeply
Example
Many people deplore the violence shown on television.
Muchas personas deploran la violencia mostrada en la televisión.
C1 noun /ˈtem.pɚ.əns/

temperance

templanza
Meaning
Moderation in action, thought, or feeling; restraint.
Example
Temperance is essential for a balanced life.
La templanza es esencial para una vida equilibrada.
C1 verb /druːp/

droop

caer
Meaning
to bend or hang downward; to become weak or tired
Example
The flowers began to droop in the heat.
Las flores empezaron a caer debido al calor.
C1 noun /trænsˈfjuːʒən/

transfusion

transfusión sanguínea
Meaning
the process of transferring blood or another fluid into a person's vein
Example
The patient received a blood transfusion after the accident.
El paciente recibió una transfusión de sangre después del accidente.
C1 verb /ˈæmbʊʃ/

ambush

emboscar
Meaning
To attack suddenly and unexpectedly from a hidden position.
Example
The soldiers planned to ambush the enemy at dawn.
Los soldados planearon emboscar al enemigo al amanecer.
C1 adjective /dæft/

daft

tonto
Meaning
Silly or foolish.
Example
It was a daft idea to go hiking without water.
Fue una idea tonta ir a hacer senderismo sin agua.
C1 adjective /ˈfruːt.ləs/

Fruitless

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

Emancipation

emancipación
Meaning
the fact or process of being set free from legal, social, or political restrictions
Example
The emancipation of slaves was a significant moment in American history.
La emancipación de los esclavos fue un momento significativo en la historia de América.
C1 noun /ˈkɑr.nɪdʒ/

Carnage

carnicería
Meaning
the killing of a large number of people; widespread slaughter
Example
The battlefield was filled with carnage after the brutal war.
El campo de batalla estaba lleno de carnicería después de la guerra brutal.
C1 noun /rɔ ˈtɜrmərɪk/

Raw Turmeric

cúrcuma cruda
Meaning
fresh unprocessed root of the turmeric plant used as a spice and medicine
Example
Grate raw turmeric into the curry for authentic flavor.
Ralla la cúrcuma cruda en el curry para un sabor auténtico.
C1 adjective /ˌiːɡəˈtɪstɪkəl/

egotistical

ególatra
Meaning
Excessively self-absorbed or conceited.
Example
Her egotistical behavior made it difficult for her to maintain friendships.
Su comportamiento ególatra hizo difícil que mantuviera amistades.
C1 noun /ˌsʌpəˈzɪʃən/

supposition

suposición
Meaning
An assumption or belief that something is true without certain proof.
Example
His plan was based on the supposition that the market would recover quickly.
Su plan estaba basado en la suposición de que el mercado se recuperaría rápidamente.
C1 noun ˌwɛðəraɪˈzeɪʃən

weatherization

climatización
Meaning
The practice of protecting a building and its interior from the elements.
Example
The house underwent weatherization to improve energy efficiency.
La casa pasó por un proceso de climatización para mejorar la eficiencia energética.
C1 adjective /ˈɡleɪʃəl/

glacial

relacionado con el hielo o los glaciares
Meaning
relating to ice or glaciers; extremely cold or unfriendly
Example
The mountains were covered in glacial ice.
Las montañas estaban cubiertas con hielo glacial.
C1 verb /ˈmɪt.ɪ.ɡeɪt/

mitigate

mitigar
Meaning
To make less severe, serious, or painful; to lessen the severity of damage or harm.
Example
Proper planning can mitigate financial risks.
La planificación adecuada puede mitigar los riesgos financieros.
C1 adjective /ˌʌnɪnˈhɪbɪtɪd/

uninhibited

desinhibido
Meaning
Not restrained or restricted; free in behavior or expression.
Example
She gave an uninhibited laugh at the joke.
Ella dio una risa desinhibida al chiste.
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 /ˌriːˈsiːt/

reseat

reubicar
Meaning
to seat someone again or to fit something back into its place
Example
The usher had to reseat the guests after the interruption.
El acomodador tuvo que reubicar a los invitados después de la interrupción.
C1 verb /ˈɪrɪˌɡeɪt/

irrigate

regar
Meaning
to supply water to land or crops; to wash out a wound with water
Example
Farmers irrigate their fields during dry seasons.
Los agricultores riegan sus campos durante la temporada seca.
C1 adjective /ɪˈkwɛstriən/

equestrian

equitación
Meaning
Relating to horse riding or horseback riders.
Example
She won several equestrian competitions.
Ella ganó varias competiciones ecuestres.
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 /ˈbɔɪstərəs/

boisterous

bullicioso
Meaning
noisy, energetic, and cheerful; rowdy
Example
The children were boisterous during the birthday party.
Los niños estaban bulliciosos durante la fiesta de cumpleaños.
C1 adjective /ˌzɛnəˈfoʊbɪk/

xenophobic

xenofóbico
Meaning
having or showing a dislike or fear of people from other countries
Example
The leader’s xenophobic comments sparked outrage across the country.
Los comentarios xenofóbicos del líder provocaron indignación en todo el país.
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 noun /ˈkoʊmə/

coma

coma
Meaning
A deep state of prolonged unconsciousness caused by illness or injury.
Example
The patient remained in a coma for several weeks.
El paciente permaneció en coma durante varias semanas.
C1 noun, adjective /ˈpɑːrtɪzən/

partisan

partidario
Meaning
A strong supporter of a party, cause, or person; showing biased allegiance.
Example
The debate quickly turned partisan, with each side defending their own agenda.
El debate rápidamente se volvió partidista, con cada lado defendiendo su propia agenda.
C1 noun /mɪˈrɑːʒ/

Mirage

espejismo
Meaning
An optical illusion caused by atmospheric conditions, especially in deserts
Example
The travelers saw a mirage of water in the desert.
Los viajeros vieron un espejismo de agua en el desierto.
C1 adjective /wɪðˈdrɔːn/

withdrawn

reservado
Meaning
quiet and shy; not wanting to talk to others
Example
After the incident, he became withdrawn and avoided his friends.
Después del incidente, se volvió reservado y evitó a sus amigos.
C1 adjective, noun /ˈɪnvəlɪd/ (adjective), /ɪnˈvælɪd/ (noun)

invalid

inválido
Meaning
Not valid; having no force or effect. Also refers to a person too weak or ill to care for themselves.
Example
The court declared the contract invalid.
El tribunal declaró el contrato inválido.
C1 adjective /dɪˈspɪrɪtɪd/

dispirited

desanimado
Meaning
Having lost enthusiasm, hope, or confidence; dejected.
Example
After losing the match, the team looked dispirited.
Después de perder el partido, el equipo se veía desanimado.
C1 verb /kənˈdʒɛst/

congest

congestionar
Meaning
To block or overcrowd a space, making movement or flow difficult.
Example
Heavy traffic can congest the city streets during rush hour.
El tráfico pesado puede congestionarse las calles de la ciudad durante la hora punta.
C1 noun /ˈtraɪ.pɒd/

tripod

trípode
Meaning
A three-legged stand used to support a camera, telescope, or other object.
Example
The photographer set up his camera on a tripod.
El fotógrafo colocó su cámara en un trípode.
C1 noun /ˌsʌb.stɪˈtjuː.ʃən/

substitution

sustitución
Meaning
the action of replacing someone or something with another
Example
The substitution of the old system with the new one was difficult.
La sustitución del antiguo sistema por el nuevo fue difícil.
C1 noun /ˈsɪstərn/

cistern

cisterna
Meaning
A tank or container for storing water, usually for household use.
Example
The old house still had a cistern to collect rainwater.
La casa antigua todavía tenía una cisterna para recoger agua de lluvia.
C1 noun ˌɪnsjʊˈleɪʃən

insulation

aislamiento
Meaning
Material used to prevent heat, sound, or electricity from being transmitted from one area to another.
Example
Insulation of food storage areas can prevent pests from entering.
El aislamiento de las áreas de almacenamiento de alimentos puede evitar que entren plagas.
C1 adjective /ˈtæksɪŋ/

taxing

agotador
Meaning
Requiring a lot of effort; physically or mentally demanding.
Example
Preparing for the exam was a taxing experience.
Preparar para el examen fue una experiencia agotadora.
C1 noun /ˈplʌn.dər.ər/

Plunderer

saqueador
Meaning
a person who steals goods, especially during war or civil disorder
Example
The plunderers ransacked the village after the battle.
Los saqueadores saquearon el pueblo después de la batalla.
C1 adjective /ˌæbəˈrɪdʒənəl/

aboriginal

aborigen
Meaning
Relating to the original inhabitants of a region.
Example
The museum has a large collection of aboriginal art.
El museo tiene una gran colección de arte aborigen.
C1 adjective ˌnɒnˈvɜːr.bəl

nonverbal

no verbal
Meaning
Communication using body language, facial expressions, or gestures instead of words
Example
Nonverbal cues play a crucial role in effective communication.
Las señales no verbales juegan un papel crucial en la comunicación efectiva.
C1 verb /ˌoʊvərˈruːl/

overrule

anular
Meaning
to reject or disallow by exercising one's superior authority; to override a decision
Example
The judge overruled the objection from the defense attorney.
El juez anuló la objeción del abogado defensor.
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 /ˈɛf.ɪ.kə.si/

efficacy

eficacia
Meaning
The ability to produce a desired or intended result; effectiveness.
Example
The efficacy of the vaccine has been proven in trials.
La eficacia de la vacuna se ha demostrado en los ensayos.
C1 noun /fəˈsɑːd/

facade

fachada
Meaning
The front of a building; a false or superficial appearance
Example
The building's glass facade reflected the sunset.
La fachada de vidrio del edificio reflejaba el atardecer.
C1 noun /ˈʌp.rɔːr/

Uproar

alboroto; ruido; disturbio
Meaning
a loud and emotional noise or disturbance; public outcry
Example
The announcement caused an uproar among the students.
El anuncio causó un alboroto entre los estudiantes.
C1 noun /ˈdɔːrˌkiːpər/

doorkeeper

portero
Meaning
A person whose job is to guard or manage the entrance of a building or room.
Example
The doorkeeper checked everyone’s passes before they entered the hall.
El doorkeeper revisó los pases de todos antes de que entraran al salón.
C1 noun /ˈɪnkwest/

inquest

investigación
Meaning
A legal or official inquiry, especially into the cause of a death.
Example
The inquest revealed the cause of the accident.
La investigación reveló la causa del accidente.
C1 noun /ˌkʌl də ˈsæk/

cul de sac

calle sin salida
Meaning
A street or passage closed at one end; a dead end.
Example
They bought a house at the end of a quiet cul de sac.
Compraron una casa al final de una tranquila calle sin salida.
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 noun /ˈsɛntrɪˌfjuːdʒ/

centrifuge

centrífuga
Meaning
A machine that spins substances at high speed to separate different components.
Example
The lab technician used a centrifuge to separate the blood cells from the plasma.
El técnico de laboratorio usó una centrífuga para separar las células sanguíneas del plasma.
C1 verb /ˈdɪs.ɪ.peɪt/

dissipate

desaparecer gradualmente
Meaning
To disappear or cause to disappear gradually.
Example
The tension in the room slowly dissipated.
La tensión en la sala desapareció lentamente.
C1 noun ˌæf.ɔːr.ɪˈsteɪ.ʃən

afforestation

reforestación
Meaning
The action of planting trees on an area of land in order to form a forest.
Example
Afforestation helps restore biodiversity.
La reforestación ayuda a restaurar la biodiversidad.
C1 verb /əˈbaʊnd/

abound

abundar
Meaning
To exist in large numbers or amounts.
Example
Opportunities abound in the field of technology.
Las oportunidades abundan en el campo de la tecnología.
C1 adjective /əˈrɛstɪŋ/

arresting

atractivo
Meaning
Attracting attention in a striking or impressive way.
Example
The actress gave an arresting performance.
La actriz dio una actuación atractiva.
C1 adjective /əˈprɛs.ɪv/

Oppressive

opresivo
Meaning
Harsh and authoritarian; overwhelming; causing distress; tyrannical;
Example
The oppressive heat made it difficult to work outside during the summer.
El calor opresivo dificultaba trabajar afuera durante el verano.
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 ˈzɛləs

zealous

celoso
Meaning
Having or showing great energy or enthusiasm in pursuit of a cause or objective; fervent.
Example
The zealous volunteers worked tirelessly for the cause.
Los voluntarios celosos trabajaron incansablemente por la causa.
C1 noun /ˌɪnfɪˈdɛləti/

infidelity

infidelidad
Meaning
the act of being unfaithful to a spouse or partner
Example
Their marriage ended due to his infidelity.
Su matrimonio terminó debido a su infidelidad.
C1 noun/verb /ɡæʃ/

gash

corte profundo
Meaning
A long, deep cut or wound; to cut deeply or violently.
Example
He had a deep gash on his leg after the accident.
Él tenía un corte profundo en su pierna después del accidente.
C1 noun /ˈəʊ.nəs/

onus

responsabilidad
Meaning
A duty or responsibility, especially a heavy one.
Example
The onus is on the government to provide relief to the victims.
El ónus está en el gobierno para proporcionar alivio a las víctimas.
C1 noun /ˌvaɪ.əˈbɪl.ə.ti/

viability

viabilidad
Meaning
Ability to work successfully; feasibility.
Example
The viability of the project depends on funding.
La viabilidad del proyecto depende de la financiación.
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 /ˈkɔːl.drən/

Cauldron

caldero
Meaning
a large metal pot with a lid and handle, used for cooking over a fire
Example
The witch stirred her potion in a large cauldron.
La bruja removió su poción en un gran caldero.
C1 adjective /əbˈdʒek.ʃən.ə.bəl/

Objectionable

objecionable
Meaning
arousing distaste or opposition; unpleasant or offensive
Example
His objectionable behavior made everyone uncomfortable.
Su comportamiento objetable hizo que todos se sintieran incómodos.
C1 noun /ˈslændər/

Slander

calumnias
Meaning
the action of making false spoken statements damaging to someone's reputation
Example
The politician sued the newspaper for slander.
El político demandó al periódico por calumnias.
C1 adjective /ˈɪntrɪkət/

intricate

intrincado
Meaning
very detailed, complex, and difficult to understand
Example
The artist created an intricate pattern on the wall.
El artista creó un patrón intrincado en la pared.
C1 adjective /ˈnjuː.tri.ənt dɛns/

nutrient-dense

rico en nutrientes
Meaning
Rich in nutrients and high nutritional value.
Example
Organic food is often more nutrient-dense than processed food.
Los alimentos orgánicos suelen ser más ricos en nutrientes que los alimentos procesados.
C1 adjective /ɪnˈdiːsənt/

indecent

indecente
Meaning
not conforming to accepted standards of behavior or morality; improper or offensive
Example
He was warned for making an indecent remark during the meeting.
Fue advertido por hacer un comentario indecente.
C1 verb /ɪnˈskraɪb/

inscribe

grabar
Meaning
to write or carve words or symbols on a surface
Example
They inscribed her name on the trophy.
Ellos grabaron su nombre en el trofeo.
C1 noun /deɪˈtɑːnt/

detente

distensión
Meaning
the easing of hostility or strained relations, especially between countries
Example
The two nations worked toward detente after decades of conflict.
Las dos naciones trabajaron hacia la distensión después de décadas de conflicto.
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 /ˈtændʒənt/

tangent

tangente
Meaning
a straight line or plane that touches a curve or curved surface at a point but does not cross it
Example
The teacher drew a tangent to the circle on the board.
El profesor dibujó una tangente al círculo en la pizarra.
C1 adjective /kəˈləʊ.kwi.əl/

colloquial

coloquial
Meaning
Used in ordinary conversation rather than formal speech or writing; informal language.
Example
His colloquial expressions made the speech relatable.
Sus expresiones coloquiales hicieron que el discurso fuera más accesible.
C1 verb /kəˈmɛmɔˌreɪt/

commemorate

conmemorar
Meaning
To honor and remember someone or something through a ceremony or action.
Example
The statue was built to commemorate the fallen heroes.
La estatua fue construida para conmemorar a los héroes caídos.
C1 adjective /dɪˈlæpɪˌdeɪtɪd/

dilapidated

deteriorado
Meaning
Fallen into disrepair or ruin due to neglect or age.
Example
The family lived in a dilapidated house at the edge of town.
La familia vivía en una casa deteriorada al borde de la ciudad.
C1 phrase ˌkæt.əˈɡɒr.ɪ.kəl.i rɪˈfjuː.tɪd

categorically refuted

totalmente refutado
Meaning
Completely and absolutely denied or disproved.
Example
The claims were categorically refuted by officials.
Las afirmaciones fueron categóricamente refutadas por los funcionarios.
C1 adjective /ˌpɜːrpənˈdɪkjələr/

perpendicular

perpendicular
Meaning
At an angle of 90 degrees to a given line, plane, or surface.
Example
The ladder was placed perpendicular to the ground for safety.
La escalera fue colocada perpendicular al suelo por seguridad.
C1 adjective /ˌɪnkəʊˈhɪərənt/

incoherent

incoherente
Meaning
Not clear or easy to understand; lacking logical connection.
Example
His explanation was so incoherent that nobody could follow it.
Su explicación era tan incoherente que nadie pudo seguirla.
C1 adjective /ɪɡˈzɪləreɪtɪŋ/

exhilarating

emocionante
Meaning
Making someone feel very excited, happy, or thrilled.
Example
Skydiving was the most exhilarating experience of his life.
El paracaidismo fue la experiencia más emocionante de su vida.
C1 verb /krɪndʒ/

cringe

encogerse
Meaning
To shrink back in fear, embarrassment, or discomfort.
Example
She cringed when she remembered her mistake.
Ella se encogió cuando recordó su error.
C1 noun /ˌstætɪˈstɪʃən/

statistician

estadístico
Meaning
A person who specializes in collecting, analyzing, and interpreting numerical data.
Example
The statistician presented the survey results with great clarity.
El estadístico presentó los resultados de la encuesta con gran claridad.
C1 noun /ˌɪnsəˈfɪʃənsi/

insufficiency

insuficiencia
Meaning
The state of not being enough or not being adequate.
Example
The project failed due to the insufficiency of funds.
El proyecto falló debido a la insuficiencia de fondos.
C1 adjective /ˈspjʊəriəs/

spurious

falso / fraudulento
Meaning
Not genuine, authentic, or true; false or fake.
Example
The report was based on spurious claims.
El informe se basó en afirmaciones falsas.
C1 noun ɪnˈdʌldʒəns

indulgence

indulgencia
Meaning
The practice of allowing oneself to enjoy the pleasure of something.
Example
His indulgence in junk food affected his health.
La indulgencia en la comida chatarra afecto su salud.
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 noun /prəˈspɛktəs/

prospectus

prospecto
Meaning
a printed document that advertises or describes a school, business, or investment offering
Example
The university sent out a prospectus to attract new students.
La universidad envió un prospecto para atraer nuevos estudiantes.
C1 verb /daɪˈleɪt/

dilate

dilatar
Meaning
To make wider, larger, or more open.
Example
The doctor used drops to dilate the patient's pupils.
El doctor usó gotas para dilatar las pupilas del paciente.
C1 noun /ʃraɪn/

Shrine

santuario; templo; lugar sagrado
Meaning
a holy or sacred place dedicated to a specific deity, ancestor, hero, or saint
Example
Pilgrims visit the shrine to pray for good health.
Los peregrinos visitan el santuario para rezar por buena salud.
C1 verb /ˌriːɪnˈtɪɡreɪt/

reintegrate

reintegrar
Meaning
To bring someone or something back into a group or society after being separated.
Example
The program helps prisoners reintegrate into society.
El programa ayuda a los prisioneros a reintegrarse en la sociedad.
C1 noun /ˈtreɪ.ki.ə/

Trachea

tráquea
Meaning
the tube that carries air from the throat to the lungs; windpipe
Example
The trachea is protected by cartilage rings that keep it open.
La tráquea está protegida por anillos de cartílago que la mantienen abierta.
C1 adjective /kənˈdʒenɪtl/

congenital

congénito
Meaning
existing from birth, usually describing a disease or condition
Example
The child was born with a congenital heart defect.
El niño nació con un defecto congénito en el corazón.
C1 adjective/verb /ˈwɒrəntɪd/

warranted

justificado
Meaning
Justified or authorized under the circumstances.
Example
Her anger was warranted after the unfair treatment.
Su enojo fue justificado después del trato injusto.
C1 verb /prəˈfes/

profess

profesar
Meaning
to declare or claim openly; to state one's belief
Example
He professes his love for classical music.
Él profesa su amor por la música clásica.
C1 noun /pərˈvɜr.sə.ti/

Perversity

perversidad; obstinación;
Meaning
deliberate determination to behave in an unreasonable or unacceptable way; the quality of being contrary or obstinate
Example
His perversity in refusing help frustrated everyone.
su perversidad al rechazar ayuda frustró a todos.
C1 verb /ɪnˈfleɪt/

inflate

inflar
Meaning
to fill with air or gas so it expands; to increase excessively or artificially
Example
The mechanic inflated the tire to the correct pressure.
El mecánico infló el neumático a la presión correcta.
C1 noun kəˈmɛns.mənt

commencement

comienzo
Meaning
The beginning of something; a ceremony at which degrees or diplomas are conferred on graduating students.
Example
The commencement ceremony marked the start of a new journey.
La ceremonia de comienzo marcó el inicio de un nuevo viaje.
C1 adjective /ˈpəʊ.tənt/

Potent

potente; fuerte; eficaz
Meaning
having great strength, power, or effect; influential
Example
The medicine is very potent and should be taken carefully.
La medicina es muy potente y debe tomarse con cuidado.
C1 noun, verb /ˈfɛrɪt/

ferret

hurón, buscar persistentemente o descubrir algo
Meaning
a small domesticated animal used for hunting; to search or uncover something persistently
Example
He ferreted out the hidden documents.
Él sacó los documentos ocultos.
C1 noun ˈpɑː.sɪŋ

parsing

análisis de la estructura de la oración
Meaning
The process of analyzing sentence structure to understand grammatical relationships.
Example
The AI model performs parsing to understand syntax.
El modelo de IA realiza el análisis de oraciones para entender la sintaxis.
C1 adjective /ˈrɛtroʊˌɡreɪd/

retrograde

retrógrado
Meaning
moving backward or returning to a worse condition
Example
The policy was seen as a retrograde step for human rights.
Se consideró que la política era un paso retrógrado para los derechos humanos.
C1 adjective /ˈtækt.ləs/

tactless

insensato
Meaning
showing a lack of sensitivity in dealing with others
Example
His tactless remark embarrassed everyone at the meeting.
Su comentario insensato avergonzó a todos en la reunión.
C1 adjective /ˈtɑːrdi/

tardy

tarde
Meaning
Delayed; arriving or happening late.
Example
The student received a warning for being tardy to class.
El estudiante recibió una advertencia por llegar tarde a clase.
C1 verb /ˈmɒd.jʊ.leɪt/

modulate

modular
Meaning
To change the strength, tone, or pitch of something; to adjust or regulate.
Example
A good speaker knows how to modulate their voice.
Un buen orador sabe cómo modular su voz.
C1 noun /ˈkælkjʊləs/

calculus

cálculo
Meaning
A branch of mathematics concerned with rates of change and accumulation; also a hard mineral deposit in the body such as on teeth.
Example
Calculus is essential for advanced studies in physics and engineering.
El cálculo es esencial para los estudios avanzados en física e ingeniería.