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C2 verb /ɜːrk/

irk

molestar
Meaning
to annoy or irritate someone
Example
It irks me when people are late without calling.
Me molesta cuando la gente llega tarde sin llamar.
C1 noun /ˌkɒnfləˈɡreɪʃən/

conflagration

gran incendio destructor
Meaning
A large, destructive fire that destroys a great deal of land or property.
Example
The forest was devastated by a massive conflagration that lasted for days.
El bosque fue devastado por un enorme incendio que duró varios días.
C1 noun /ˈstɪɡmə/

stigma

estigma
Meaning
a mark of shame or disgrace associated with a particular circumstance or quality
Example
There is still a stigma around mental health issues in many societies.
Todavía existe un estigma en torno a los problemas de salud mental en muchas sociedades.
B2 noun /əˈdɪkʃən/

addiction

adicción
Meaning
A strong and harmful need to regularly have or do something, such as drugs, alcohol, or habits.
Example
His addiction to video games affected his studies.
Su adicción a los videojuegos afectó sus estudios.
B1 adjective ˌsaɪənˈtɪfɪk

scientific

científico
Meaning
Based on or characterized by the methods and principles of science.
Example
Scientific discoveries continue to shape our understanding of the world.
Los descubrimientos científicos siguen dando forma a nuestra comprensión del mundo.
A2 noun /ˈʌn.jən/

Onion

cebolla
Meaning
a round vegetable with a strong taste and smell, made up of many layers
Example
I need to chop some onions for the curry recipe.
Necesito cortar algunas cebollas para la receta de curry.
C1 adjective /dɪsˈkɔːrdənt/

discordant

discordante
Meaning
disagreeing or clashing; harsh and jarring in sound
Example
The discordant notes of the band hurt our ears.
Las notas discordantes de la banda nos lastimaron los oídos.
C2 noun /ˌnjuːməˈreɪʃən/

numeration

numeración
Meaning
the action or process of counting or assigning numbers
Example
The teacher explained the basics of numeration to the students.
El maestro explicó los conceptos básicos de la numeración a los estudiantes.
A2 verb /əˈtrækt/

attract

atraer
Meaning
to cause someone to have interest or draw something towards
Example
The flowers attract bees with their bright colors.
Las flores atraen a las abejas con sus colores brillantes.
B1 adjective /ˌɔːtəˈmætɪk/

automatic

automático
Meaning
working by itself without direct human control
Example
This car has an automatic transmission.
Este coche tiene una transmisión automática.
C2 noun /roʊˈtʌn.də/

rotunda

edificio redondo
Meaning
a large circular building or hall, often with a dome
Example
Tourists gathered inside the grand rotunda of the capitol.
Los turistas se reunieron dentro de la gran rotonda del capitolio.
A2 verb /ɪˈmædʒɪn/

imagine

imaginar
Meaning
to form a mental image of; to believe something unreal to be true
Example
Can you imagine living in a different country?
¿Puedes imaginar vivir en un país diferente?
B1 noun /ˈsʌn.set/

Sunset

puesta del sol
Meaning
the time in the evening when the sun disappears below the horizon
Example
The romantic sunset painted the sky in golden colors.
El romántico atardecer pintó el cielo con colores dorados.
C1 noun dɪˈtætʃ.mənt

detachment

desapego
Meaning
The state of being objective or aloof; not being emotionally involved.
Example
Buddhist philosophy encourages detachment from material desires.
La filosofía budista fomenta el desapego de los deseos materiales.
A2 adjective /ˈhevi/

Heavy

pesado
Meaning
having great weight; intense or severe
Example
The heavy suitcase was difficult to carry up the stairs.
La maleta pesada fue difícil de llevar por las escaleras.
C1 adjective /ˈeɪmləs/

Aimless

sin rumbo; sin objetivo
Meaning
without purpose or direction; lacking a goal
Example
He wandered around the city in an aimless manner.
Él caminaba por la ciudad de manera sin rumbo.
C2 noun /ˈsælvoʊ/

salvo

salva
Meaning
A simultaneous discharge of guns or release of bombs; a sudden outburst of cheers or applause.
Example
The soldiers fired a salvo to honor the fallen general.
Los soldados dispararon una salva para honrar al general caído.
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 adjective /dɪˈspɒndənt/

despondent

desalentado
Meaning
feeling or showing deep hopelessness or discouragement
Example
She felt despondent after losing her job.
Ella se sintió desalentada después de perder su trabajo.
B2 noun /əˈkjuːzd/

accused

acusado
Meaning
a person who has been charged with a crime
Example
The accused pleaded not guilty in court.
El acusado se declaró no culpable en la corte.
C2 noun /rɪˈdʒɔɪndər/

rejoinder

réplica
Meaning
a quick or witty reply; a response to a remark or argument
Example
His sharp rejoinder silenced the crowd.
Su aguda réplica silenció a la multitud.
C1 verb /ˈɛnərˌdʒaɪz/

energize

energizar
Meaning
To give energy or vitality to something or someone.
Example
The motivational speech helped energize the team.
El discurso motivacional ayudó a energizar al equipo.
B2 noun /spaɪn/

Spine

columna vertebral; soporte central de una estructura
Meaning
the backbone or vertebral column of a vertebrate; the central support of a structure
Example
She injured her spine in the accident.
Ella se lesionó la columna vertebral en el accidente.
B1 verb /rʌb/

rub

frotar
Meaning
to press and move something firmly against a surface; to apply pressure with movement
Example
She rubbed her hands together to keep them warm.
Ella frotó sus manos juntas para mantenerlas calientes.
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.
B2 adverb /ˈoʊpənli/

Openly

abiertamente; públicamente
Meaning
in a frank and honest way; without concealment; publicly
Example
She spoke openly about her struggles with mental health.
Ella habló abiertamente sobre sus luchas con la salud mental.
B2 noun /ˌhɑː.spɪˈtæl.ə.ti/

Hospitality

hospitalidad
Meaning
the friendly and generous reception and entertainment of guests or strangers
Example
The hotel staff's exceptional hospitality made our vacation truly memorable and enjoyable.
La hospitalidad excepcional del personal del hotel hizo que nuestras vacaciones fueran realmente memorables y agradables.
B2 adjective /ɡəʊl ɔːˈrɪəntɪd/

goal-oriented

orientado a metas
Meaning
Focused on achieving specific objectives or targets; driven by clear aims.
Example
Being goal-oriented is crucial for achieving success.
Ser orientado a metas es crucial para alcanzar el éxito.
C2 adjective /rɪˈfɛrəbəl/

referable

referible
Meaning
able to be related or directed to something
Example
The issue is referable to the new policy changes.
El problema es referible a los nuevos cambios de política.
B1 noun, verb /ˈfaɪ.næns/ or /fəˈnæns/

finance

finanzas
Meaning
the management of money and investments, or to provide funds for something
Example
The company secured finance from a major bank.
La compañía obtuvo financiamiento de un banco importante.
B2 noun, verb /bəˈfeɪ/ (noun), /ˈbʌfɪt/ (verb)

buffet

buffet
Meaning
A meal where guests serve themselves from a variety of dishes arranged on a table; also means to strike repeatedly (as a verb).
Example
We enjoyed a large buffet at the wedding reception.
Disfrutamos de un gran buffet en la recepción de la boda.
C1 adjective /ˈmel.əʊ/

Mellow

suave y agradable; relajado y gentil
Meaning
soft and pleasant; relaxed and gentle
Example
The mellow evening light created a peaceful atmosphere.
La suave luz de la tarde creó una atmósfera tranquila.
B2 adjective /ˈɡlɒsi/

glossy

brillante
Meaning
Shiny and smooth in appearance; attractive on the surface but sometimes lacking depth.
Example
She bought a glossy magazine from the store.
Compró una revista brillante en la tienda.
C2 verb /ɪkˈstɛmpəraɪz/

extemporize

improvisar
Meaning
To speak or perform without preparation; improvise.
Example
The actor had to extemporize when he forgot his lines.
El actor tuvo que improvisar cuando olvidó sus líneas.
B1 adverb /ˈpriːviəsli/

previously

anteriormente
Meaning
at an earlier time or before now
Example
She had previously worked at a bank before starting her own business.
Ella había trabajado anteriormente en un banco antes de comenzar su propio negocio.
C1 adjective /ˈwɪm.zɪ.kəl/

Whimsical

caprichoso; extraño
Meaning
playfully quaint or fanciful, especially in an appealing and amusing way
Example
The artist created whimsical sculptures that delighted children.
El artista creó esculturas caprichosas que encantaron a los niños.
C2 adjective /splɪˈnɛtɪk/

splenetic

irritable, malhumorado
Meaning
bad-tempered, irritable, spiteful
Example
His splenetic remarks offended everyone in the room.
Sus comentarios iracundos ofendieron a todos en la sala.
A1 adjective /ˈfeɪ.məs/

famous

famoso
Meaning
Known about by many people; renowned.
Example
This area is famous for its unique heritage.
Esta área es famosa por su herencia única.
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 /ˈnɔːrməlsi/

normalcy

normalidad
Meaning
The condition of being normal; a return to usual or expected conditions.
Example
After the flood, the town struggled to regain a sense of normalcy.
Después de la inundación, la ciudad luchó por recuperar un sentido de normalidad.
B1 verb /əˈpriːʃieɪt/

appreciate

Apreciar
Meaning
to recognize the value or significance of; to be grateful for
Example
I really appreciate your help with this project.
Realmente aprecio tu ayuda con este proyecto.
B1 noun /ˈmoʊ.ʃən/

Motion

movimiento; acción de moverse
Meaning
the action of moving or being moved; a formal proposal
Example
The car was in constant motion during the journey.
El coche estaba en movimiento constante durante el viaje.
C1 verb /ˈtɒpl/

topple

caer
Meaning
to fall or cause to fall over; to overthrow
Example
The earthquake caused the old building to topple.
El terremoto causó que el viejo edificio se cayera.
C2 noun /ˈdʒaɪrəˌskoʊp/

gyroscope

giroscopio
Meaning
A device consisting of a wheel or disk mounted so it can spin rapidly and maintain orientation, used for navigation and balance.
Example
The airplane's navigation system relies on a gyroscope for stability.
El sistema de navegación del avión depende de un giroscopio para la estabilidad.
C1 adjective /rɪˈpʌl.sɪv/

Repulsive

repulsivo; desagradable; que causa aversión
Meaning
extremely unpleasant; causing strong dislike or disgust
Example
The smell of rotten eggs was absolutely repulsive.
El olor a huevos podridos era absolutamente repulsivo.
C1 noun /ɪnˈsɜːʃən/

insertion

inserción
Meaning
the action of inserting something into something else
Example
The insertion of the new data was completed successfully.
La inserción de los nuevos datos se completó con éxito.
C1 noun /ˈɪŋklɪŋ/

inkling

presentimiento
Meaning
A slight idea, hint, or suspicion about something.
Example
She had an inkling that he was planning a surprise.
Ella tenía una ligera sospecha de que él estaba planeando una sorpresa.
B1 verb /ˈfɛri/

ferry

transportar en ferry
Meaning
to transport by boat; to carry back and forth
Example
The boat ferried passengers across the river.
El bote transportó a los pasajeros a través del río.
B1 verb /səˈraʊnd/

surround

rodear
Meaning
To be all around someone or something.
Example
Mountains surround the small village.
Las montañas rodean el pequeño pueblo.
B1 noun /ˈmeɪkʌp/

makeup

maquillaje
Meaning
cosmetics used to enhance or alter appearance
Example
She applied makeup before the party.
Ella aplicó maquillaje antes de la fiesta.
C1 adjective /ˈmɑːr.dʒɪ.nəl/

Marginal

marginal; mínimo; leve
Meaning
relating to or situated at the edge; minimal; slight
Example
The marginal improvement in sales was barely noticeable.
La mejora marginal en las ventas fue apenas notable.
B2 noun /bent/

Bent

inclinación; tendencia
Meaning
a natural inclination or talent; a strong interest or liking for something
Example
She has a natural bent for music and art.
Ella tiene una inclinación natural por la música y el arte.
C1 noun /əˈdʒeɪsənsi/

adjacency

adyacencia
Meaning
The state of being next to or adjoining something else.
Example
The adjacency of the two buildings made it easy to connect them.
La adyacencia de los dos edificios hizo fácil conectarlos.
C1 noun/verb /ˈtæm.pər.ɪŋ/

tampering

alteración no autorizada
Meaning
The action of interfering with something in order to cause damage or make unauthorized alterations.
Example
Tampering with evidence is a criminal offense.
Alterar pruebas es un delito criminal.
C2 adjective /ɪnˈkɒntɪnənt/

incontinent

incontinente
Meaning
lacking control over urination or defecation; lacking self-restraint
Example
The patient was incontinent after surgery.
El paciente era incontinente después de la cirugía.
B2 verb /ɪkˈspaɪər/

expire

expirar
Meaning
to come to an end, especially a period of validity or life
Example
My passport will expire next month.
Mi pasaporte expirará el próximo mes.
A2 verb /ˈhɜːri/

hurry

apresurarse
Meaning
to move or act with great speed; to rush
Example
We need to hurry or we'll be late.
Necesitamos apresurarnos o llegaremos tarde.
C1 verb /dɪsˈɑːrm/

disarm

desarmar
Meaning
to take weapons away from someone; to make someone feel less hostile
Example
The soldiers were ordered to disarm the rebels.
A los soldados se les ordenó desarmar a los rebeldes.
C1 adjective /ˈdɔːr.mənt/

Dormant

inactivo; durmiendo; temporalmente suspendido; no actualmente activo
Meaning
inactive; sleeping; temporarily suspended; not currently active
Example
The volcano has been dormant for over a century.
El volcán ha estado inactivo por más de un siglo.
C2 noun /ˈskɔːrpiən fɪʃ/

Scorpion fish

pez escorpión
Meaning
a type of fish with venomous spines that belongs to the family Scorpaenidae
Example
The scorpion fish has dangerous spines that can inject venom.
El pez escorpión tiene espinas peligrosas que pueden inyectar veneno.
C2 noun /ˈpɒl.iˌθi.ɪz.əm/

polytheism

politeísmo
Meaning
the belief in or worship of multiple gods
Example
Ancient Greeks practiced polytheism, worshiping gods like Zeus and Athena.
Los antiguos griegos practicaban el politeísmo, adorando a dioses como Zeus y Atenea.
C2 noun /ˈnɛkrəˌmænsi/

necromancy

necromancia
Meaning
the practice of communicating with the dead, often to predict the future
Example
Ancient texts described rituals of necromancy performed by priests.
Los textos antiguos describen rituales de necromancia realizados por sacerdotes.
C2 adjective /daɪˈæfənəs/

diaphanous

diáfano
Meaning
Light, delicate, and translucent.
Example
She wore a diaphanous dress that shimmered in the sunlight.
Ella llevaba un vestido diáfano que brillaba a la luz del sol.
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 adjective /ˌkætəˈklɪzmɪk/

cataclysmic

catastrófico
Meaning
Relating to or denoting a violent natural event or upheaval.
Example
The war had cataclysmic effects on the nation's economy.
La guerra tuvo efectos catastróficos en la economía del país.
B2 adjective /ˌʌnrɪˈzɒlvd/

unresolved

no resuelto
Meaning
not solved or settled; remaining undecided or unclear
Example
The dispute remains unresolved despite several meetings.
La disputa sigue sin resolverse a pesar de varias reuniones.
B1 noun /ˌprezənˈteɪʃən/

presentation

presentación
Meaning
The manner or style in which something is given, offered, or displayed.
Example
The presentation of the new product was well received.
La presentación del nuevo producto fue bien recibida.
C2 adjective /dɪˈfjuːzəbl/

diffusible

difundible
Meaning
able to spread or be spread through a medium
Example
Oxygen is diffusible through cell membranes.
El oxígeno es difundible a través de las membranas celulares.
B2 noun /ˈkjuː.bɪ.kəl/

cubicle

cubículo
Meaning
A small partitioned-off area of a room, typically in an office.
Example
She works in a cubicle with three other colleagues.
Ella trabaja en un cubículo con tres compañeros de trabajo.
C1 noun /ˈstrɑːtəm/

stratum

estrato
Meaning
a layer or level of material, or a social class in society
Example
The upper stratum of society enjoyed privileges not available to others.
La capa superior de la sociedad disfrutaba de privilegios que no estaban disponibles para los demás.
C2 noun /ˈrɛkluːsəri/

reclusory

lugar de retiro
Meaning
A place for seclusion or retreat, especially for a recluse or hermit.
Example
The monk spent years in the reclusory away from society.
El monje pasó años en el lugar de retiro alejado de la sociedad.
C2 adjective /kənˈsʌmptɪv/

consumptive

consuntivo
Meaning
Relating to or characterized by consumption; historically used to describe someone suffering from tuberculosis.
Example
The doctor advised against consumptive habits.
El doctor aconsejó evitar los hábitos consumptivos.
B2 adjective /ˈkʌnɪŋ/

cunning

astuto
Meaning
Having or showing skill in achieving one's ends by deceit or evasion; cleverness in a tricky way.
Example
The cunning fox tricked the farmer.
El astuto zorro engañó al granjero.
C1 noun ˌsɪs.təˈmæt.ɪk ˈstræt.ə.dʒi

systematic strategy

estrategia sistemática
Meaning
A methodical and organized plan or approach to achieve specific objectives.
Example
A systematic strategy was employed to achieve objectives.
Se empleó una estrategia sistemática para alcanzar los objetivos.
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.
B2 verb /ɪˈreɪs/

erase

borrar
Meaning
to remove completely; to delete or wipe out
Example
Use an eraser to erase the pencil marks.
Usa un borrador para borrar las marcas de lápiz.
B1 noun /ˈfɪzɪks/

physics

física
Meaning
the natural science that studies matter, energy, and the interactions between them
Example
She decided to major in physics at the university.
Decidió especializarse en física en la universidad.
B2 noun /ˈriːzənɪŋ/

reasoning

razonamiento
Meaning
the process of thinking about something in a logical way in order to form a conclusion or judgment
Example
Her reasoning for leaving was clear and logical.
Su razonamiento para irse fue claro y lógico.
C2 noun /ɔːˈreɪʃən/

oration

discurso
Meaning
A formal speech, especially one given on a ceremonial occasion
Example
The president delivered an inspiring oration.
El presidente dio un discurso inspirador.
C1 adjective /ˈpraɪ.məl/

primal

primitivo, esencial
Meaning
Relating to the earliest stage of development; essential or fundamental.
Example
Fear is one of the most primal emotions humans experience.
El miedo es una de las emociones más primarias que los humanos experimentan.
A1 interjection /heɪ/

hey

¡Hey!
Meaning
used to attract attention, express surprise, or greet someone
Example
Hey, how are you doing today?
¡Hey, cómo estás hoy?
A2 adjective /fɪfθ/

fifth

quinto
Meaning
constituting number five in a sequence
Example
She lives on the fifth floor of the building.
Ella vive en el quinto piso del edificio.
C2 noun /ɪmˈprɑːvɪdəns/

improvidence

imprudencia
Meaning
Lack of foresight or care for future needs.
Example
His improvidence led to financial difficulties.
Su imprudencia lo llevó a dificultades financieras.
B1 verb /dɪˈpɑːrt/

depart

partir
Meaning
to leave, especially to start a journey
Example
The train will depart at 9 a.m.
El tren saldrá a las 9 a.m.
B1 noun /ˈrezɪdənt/

Resident

residente
Meaning
a person who lives somewhere permanently or on a long-term basis; living in a particular place
Example
She has been a resident of this city for over ten years.
Ella ha sido residente de esta ciudad durante más de diez años.
C2 noun /ˌpɜːrspɪˈkjuːəti/

perspicuity

claridad
Meaning
Clarity and ease in speech or writing; the quality of being clearly expressed.
Example
The perspicuity of his lecture made it easy for students to understand complex topics.
La claridad de su conferencia hizo que fuera fácil para los estudiantes entender temas complejos.
C1 verb /ɪnˈtrɛntʃ/

entrench

afianzar
Meaning
To establish something so firmly that it is difficult to change.
Example
The company entrenched its position in the market through innovation.
La empresa afianzó su posición en el mercado a través de la innovación.
C1 noun /ˈfɒdər/

fodder

forraje
Meaning
food for livestock such as cattle, horses, or sheep; also something considered of little value but used to supply a demand
Example
The farmer stored enough fodder for the cattle to last through winter.
El granjero almacenó suficiente forraje para que el ganado tuviera suficiente durante el invierno.
B2 adjective /səbˈstæn.ʃəl/

Substantial

sustancial; considerable; importante
Meaning
large in size, amount, or importance; considerable; significant
Example
There was a substantial increase in sales this quarter.
Hubo un aumento sustancial en las ventas de este trimestre.
C1 adjective /ɔːˈneɪt/

ornate

ornamentado
Meaning
elaborately or highly decorated
Example
The palace hall was filled with ornate furniture and paintings.
El salón del palacio estaba lleno de muebles ornamentados y pinturas.
C2 noun /kənˈsaɪnər/

consignor

remitente
Meaning
a person or company that sends goods to be sold or transported
Example
The consignor shipped the goods to the warehouse.
El remitente envió las mercancías al almacén.
B2 noun /ɪnˈveɪʒən/

invasion

invasión
Meaning
An instance of invading a country, region, or personal space with armed force or unwelcome presence.
Example
The army prepared for the possibility of an invasion.
El ejército se preparó para la posibilidad de una invasión.
A2 noun/verb /ˈtræn.spɔːrt/

transport

transporte
Meaning
The movement of people or goods from one place to another.
Example
Efficient transport systems reduce travel time.
Los sistemas de transporte eficientes reducen el tiempo de viaje.
C2 noun /dɪˈpɑːzɪtər/

depositor

depositante
Meaning
a person who places money in a bank or financial institution
Example
The bank provides insurance to protect depositors’ funds.
El banco ofrece un seguro para proteger los fondos de los depositantes.
C1 verb dɪˈlɪnieɪt

delineate

delinear
Meaning
To describe or portray something precisely
Example
The artist delineated the scene in intricate detail.
El artista delineó la escena con detalles intrincados.
B1 noun pəˈten.ʃəl

potential

potencial
Meaning
Having or showing the capacity to become or develop into something in the future.
Example
The potential for innovation is immense.
El potencial para la innovación es inmenso.
C1 noun /hɪˈpɑː.krə.si/

Hypocrisy

hipocresía; falsedad; engaño;
Meaning
the practice of claiming to have moral standards that one does not actually possess; insincerity
Example
His hypocrisy was exposed when he criticized others for the same mistakes he had made.
su hipocresía fue expuesta cuando criticó a otros por los mismos errores que él había cometido.
B2 adjective /hɑːrʃ/

Harsh

duro; áspero; cruel; severo
Meaning
unpleasantly hard or rough in texture; cruel or severe
Example
The teacher gave harsh criticism about my work.
La maestra dio críticas duras sobre mi trabajo.
C2 noun /ˈlæŋɡər/

languor

languidez
Meaning
A state of tiredness, inertia, or dreamy relaxation.
Example
The hot afternoon filled her with languor.
La cálida tarde la llenó de languidez.
C2 noun /ˈɛərəˌstæt/

aerostat

aerostato
Meaning
A lighter-than-air craft, such as a balloon, that is lifted by gas.
Example
The military used an aerostat for surveillance over the border.
El ejército usó un aerostato para vigilancia sobre la frontera.
B1 noun /ˈtɛkstbʊk/

textbook

libro de texto
Meaning
a book used for studying a subject in school or college
Example
She bought a new biology textbook for her class.
Ella compró un nuevo libro de biología para su clase.
C1 noun /ˈtriːzən/

Treason

traición
Meaning
the crime of betraying one's country, especially by attempting to kill or overthrow the sovereign or government
Example
He was accused of treason against the state.
Él fue acusado de traición contra el estado.
B2 noun /hʌb/

hub

centro
Meaning
the central part of a place or activity where things converge
Example
The city is the hub of the country's trade network.
La ciudad es el centro de la red comercial del país.
C2 verb /ˈreə.rɪ.faɪ/

rarefy

diluir, refinar
Meaning
To make something less dense or more refined.
Example
The air rarefies as you climb higher into the mountains.
El aire se diluye a medida que subes más alto en las montañas.
C1 adjective /əˈtjuːnd/

attuned

ajustado / sensible
Meaning
Being receptive or sensitive to something; well adjusted or in harmony.
Example
She is attuned to the needs of her students.
Ella está ajustada a las necesidades de sus estudiantes.
C2 noun /ˈbroʊɡən/

brogan

zapato pesado
Meaning
A heavy, sturdy shoe, often made of leather.
Example
The farmer wore old brogans while working in the field.
El granjero llevaba viejos brogans mientras trabajaba en el campo.
A1 adverb /waɪ/

Why

por qué
Meaning
For what reason or purpose; used to ask about the cause of something
Example
Why are you late today?
¿Por qué llegaste tarde hoy?
B2 adjective /ʌnˈdɪvaɪdɪd/

Undivided

Indiviso; completo; no separado ni dividido
Meaning
whole; complete; not separated or split
Example
The team showed undivided attention to the coach's instructions.
El equipo mostró atención indivisa a las instrucciones del entrenador.
A2 noun ˈmɒd.əl

model

modelo
Meaning
A framework, prototype, or simulation used to represent or understand a system or process.
Example
Scientists use a model to simulate climate change.
Los científicos usan un modelo para simular el cambio climático.
C1 adjective /ˌret.rəˈspek.tɪv/

Retrospective

retrospectivo
Meaning
looking back on or dealing with past events or situations
Example
The museum held a retrospective exhibition of the artist's work.
El museo organizó una exposición retrospectiva de la obra del artista.
C1 verb /ˈɪmprəvaɪz/

improvise

improvisar
Meaning
To create or perform something spontaneously without preparation.
Example
The actor had to improvise his lines when he forgot the script.
El actor tuvo que improvisar sus líneas cuando olvidó el guion.
B2 noun /əˈbjuːs/

Abuse

abuso; maltrato;
Meaning
cruel and violent treatment; improper use of something
Example
The abuse of power led to his resignation.
El abuso de poder llevó a su renuncia.
C2 noun /ˈsʌfərəns/

sufferance

tolerancia
Meaning
patient endurance of pain, hardship, or delay; passive consent or tolerance
Example
He lived in poverty with quiet sufferance.
Vivió en la pobreza con tolerancia silenciosa.
B2 noun /ˈaɪ.lɪd/

Eyelid

párpado
Meaning
either of the upper or lower folds of skin that cover the eye when closed
Example
Her eyelids felt heavy with sleep.
Sus párpados se sentían pesados por el sueño.
C2 verb /lɑːl/

loll

sentarse perezosamente
Meaning
To sit, lie, or stand in a lazy, relaxed way.
Example
He lolled on the sofa after a long day at work.
Se desplomó en el sofá después de un largo día de trabajo.
B1 noun, verb /ˈrɒkɪt/

rocket

felicidad
Meaning
a missile or vehicle propelled by a rocket engine; to increase or move very quickly
Example
The company’s profits rocketed after the new product launch.
No pudo ocultar su felicidad cuando recibió el premio.
C2 noun /rɪˈkwaɪtəl/

requital

retribución
Meaning
The act of returning something, such as a favor, service, or punishment; repayment or retaliation.
Example
She offered her time in requital for his kindness.
Ella ofreció su tiempo como retribución por su amabilidad.
B2 noun ˈbaɪ.əʊˌfjuː.əl

biofuel

biocombustible
Meaning
A fuel derived immediately from living matter, as opposed to fossil fuels derived from long-dead biological matter.
Example
Biofuels reduce dependence on conventional energy sources.
Los biocombustibles reducen la dependencia de fuentes de energía convencionales.
C1 adjective /ˈɜːr.θən/

Earthen

hecho de tierra o arcilla; relacionado con la cerámica
Meaning
made of earth or clay; relating to pottery or ceramic materials
Example
The kitchen had beautiful earthen pots for storage.
La cocina tenía hermosas ollas de barro para almacenamiento.
B1 noun, verb /ɡreɪd/

grade

nota, grado
Meaning
A level of quality, rank, or performance; to assign a score or mark to work or performance.
Example
The teacher graded all the papers by the weekend.
El profesor calificó todos los papeles para el fin de semana.
C2 noun /əˈsper.ɪ.ti/

asperity

asperidad
Meaning
Harshness of tone, manner, or surface.
Example
She spoke with asperity when she was interrupted.
Habló con aspereza cuando la interrumpieron.