teeter
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C1 verb /ˈtiːtər/

teeter

tambalear
Meaning
to move or balance unsteadily; to wobble
Example
The glass began to teeter on the edge of the table.
El vaso comenzó a tambalearse en el borde de la mesa.
C1 adjective /ˈtæk.taɪl/

tactile

táctil
Meaning
Connected with the sense of touch; perceptible by touch or giving a sensation when touched.
Example
The tactile experience of the fabric was soft and smooth.
La experiencia táctil de la tela era suave y lisa.
C1 noun /ˈfɛərˌɡraʊndz/

fairgrounds

terreno de feria
Meaning
A designated area where fairs, exhibitions, and amusement events are held
Example
The town set up rides and stalls at the fairgrounds for the annual festival.
El pueblo montó atracciones y puestos en el terreno de feria para el festival anual.
C1 noun /roʊt/

rote

de memoria
Meaning
mechanical or habitual repetition, often without understanding
Example
He learned the poem by rote without understanding its meaning.
Él aprendió el poema de memoria sin entender su significado.
C1 noun /ˈmeɪhɛm/

mayhem

caos
Meaning
Violent or extreme disorder; chaos and destruction.
Example
The protest turned into mayhem when the crowd clashed with the police.
La protesta se convirtió en caos cuando la multitud chocó con la policía.
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 verb /rɪˈnɛɡ/

renege

romper un compromiso
Meaning
to go back on a promise, agreement, or commitment
Example
The company reneged on its promise to increase wages.
La empresa rompió su promesa de aumentar los salarios.
C1 adjective /ˈswɛltərɪŋ/

sweltering

abrasador
Meaning
uncomfortably hot
Example
The sweltering heat made it hard to work.
El calor abrasador hizo que fuera difícil trabajar.
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.
C1 verb /slɪŋk/

slink

deslizarse en silencio
Meaning
to move quietly and secretly, often to avoid being noticed
Example
The cat slunk into the room without making a sound.
El gato entró en la habitación sin hacer ruido.
C1 noun /ˈlɔː.ləs.nəs/

Lawlessness

anarquía
Meaning
absence of law and order; a state where laws do not exist or are not enforced
Example
The city descended into lawlessness after the government collapsed.
La ciudad descendió a la anarquía después del colapso del gobierno.
C1 verb /ˈɡrætɪfaɪ/

gratify

satisfacer, contentar
Meaning
to give pleasure or satisfaction to someone
Example
It gratified him to know his work was appreciated.
Le dio placer saber que su trabajo fue apreciado.
C1 noun /ɪˈlɪpsɪs/

ellipsis

elipsis
Meaning
The omission of words in a sentence, represented by three dots (...).
Example
The writer used an ellipsis to show that part of the quote was omitted.
El escritor utilizó una elipsis para mostrar que se omitió parte de la cita.
C1 noun /ˈtrɪkstər/

trickster

embaucador
Meaning
A person who cheats or deceives people.
Example
The old man turned out to be a clever trickster who fooled everyone.
El anciano resultó ser un astuto embaucador que engañó a todos.
C1 adjective /ˌʌnprɪˈtɛnʃəs/

unpretentious

modesto
Meaning
modest; not attempting to impress others with appearance or importance
Example
She lives in an unpretentious home but is very happy.
Ella vive en una casa modesta pero es muy feliz.
C1 adjective /ˌʌnəˈkaʊntəbl/

unaccountable

inexplicable
Meaning
Not able to be explained or justified.
Example
She felt an unaccountable fear as she entered the dark room.
Ella sintió un miedo inexplicable al entrar en la habitación oscura.
C1 noun /noʊˈteɪʃən/

notation

notación
Meaning
A system of symbols or signs used to represent information, especially in mathematics or music.
Example
The teacher explained the notation used in the algebra equations.
El profesor explicó la notación utilizada en las ecuaciones algebraicas.
C1 adjective /ɪɡˈzɔːstɪv/

exhaustive

exhaustivo y completo
Meaning
Fully comprehensive and including all possibilities.
Example
The report provides an exhaustive analysis of the issue.
El informe proporciona un análisis exhaustivo del problema.
C1 adjective /ˈtɪklɪʃ/

ticklish

cosquilloso, sensible
Meaning
easily made to laugh by being touched lightly; easily upset or sensitive
Example
She is very ticklish and bursts into laughter when touched on her feet.
Ella es muy cosquillosa y se echa a reír cuando la tocan en los pies.
C1 adjective /ɪˈrɛvərənt/

irreverent

irreverente
Meaning
showing a lack of respect for people or things that are usually respected
Example
The comedian’s irreverent jokes offended some of the audience.
Los chistes irreverentes del comediante ofendieron a algunos de la audiencia.
C1 adjective ˌɪn.təˈdɪs.ɪ.plɪ.nər.i

interdisciplinary

interdisciplinario
Meaning
Relating to more than one branch of knowledge.
Example
The interdisciplinary approach in education enhances problem-solving skills.
El enfoque interdisciplinario en la educación mejora las habilidades para resolver problemas.
C1 adjective /ɒˈstɛnsəbl/

ostensible

aparente
Meaning
stated or appearing to be true, but not necessarily so
Example
His ostensible reason for leaving was illness, but many doubted it.
Su aparente razón para irse era la enfermedad, pero muchos lo dudaron.
C1 noun /ˌprɒvəˈkeɪʃən/

provocation

provocación
Meaning
An action or statement that is intended to make someone angry or to cause a reaction.
Example
His rude comment was a clear provocation.
Su comentario grosero fue una clara provocación.
C1 noun /ˈtɛnər/

tenor

tenor / tono general
Meaning
the general meaning, drift, or character of something; a male singing voice between baritone and alto
Example
The overall tenor of his speech was hopeful and reassuring.
El tenor general de su discurso era esperanzador y tranquilizador.
C1 verb /hɔːrd/

hoard

acumular
Meaning
to accumulate and hide away a large supply of something, often secretly
Example
During the crisis, many people began to hoard food and water.
Durante la crisis, muchas personas comenzaron a acumular comida y agua.
C1 noun /əˈfen.dər/

Offender

delincuente; infractor de la ley
Meaning
a person who commits an illegal act; someone who breaks the law
Example
The young offender was sentenced to community service.
El joven delincuente fue sentenciado a servicio comunitario.
C1 noun /ˈtres.pæs.ər/

Trespasser

intruso
Meaning
a person who enters someone's property without permission
Example
The security guard caught the trespasser climbing over the fence.
El guardia de seguridad atrapó al intruso escalando la cerca.
C1 noun /ˌdʒenəˈræləti/

generality

generalidad
Meaning
A vague, non-specific statement or principle that applies broadly.
Example
The speech was full of generalities and lacked concrete details.
El discurso estaba lleno de generalidades y carecía de detalles concretos.
C1 verb /ˈɛkskəˌveɪt/

excavate

felicidad
Meaning
to dig out or remove earth carefully, often for building or archaeological purposes
Example
The workers excavated the site to prepare for construction.
No pudo esconder su felicidad cuando recibió el premio.
C1 noun /ˈbaɪ.laɪn/

byline

línea del nombre del escritor
Meaning
A line in a newspaper or magazine article that names the writer.
Example
Her byline appeared on the front page of the newspaper.
Su línea apareció en la primera página del periódico.
C1 adjective skiˈmæt.ɪk

Schematic

relacionado con un esquema o de forma resumida
Meaning
Presenting some framework or concept briefly
Example
The engineer provided a schematic diagram of the project.
El ingeniero proporcionó un diagrama esquemático del proyecto.
C1 noun /ˌnjʊə.roʊ.plæˈstɪs.ɪ.ti/

neuroplasticity

neuroplasticidad
Meaning
The brain's ability to reorganize itself by forming new neural connections throughout life.
Example
Neuroplasticity allows the brain to rewire itself after an injury.
La neuroplasticidad permite que el cerebro se recablee después de una lesión.
C1 verb /ˈlɪkwɪdeɪt/

liquidate

liquidar
Meaning
To sell assets in order to pay off debts; to close a business and convert assets into cash.
Example
The company decided to liquidate its assets to pay creditors.
La empresa decidió liquidar sus activos para pagar a los acreedores.
C1 adjective /bɪˈleɪtɪd/

belated

tardío
Meaning
coming or happening later than expected or usual
Example
She sent me a belated birthday card.
Me envió una tarjeta de cumpleaños tardía.
C1 verb /ˈpæri/

parry

desviar un ataque
Meaning
to ward off or deflect an attack, especially in fencing or conversation
Example
He managed to parry the opponent’s sword with quick reflexes.
Él logró desviar la espada del oponente con reflejos rápidos.
C1 adjective /məˈlɪɡnənt/

malignant

maligno
Meaning
dangerous or harmful in influence or effect; medically, tending to invade and destroy tissue
Example
Doctors confirmed that the tumor was malignant.
Los doctores confirmaron que el tumor era maligno.
C1 verb /rɪˈmɪt/

remit

enviar dinero / perdonar
Meaning
To send money in payment or as a gift; to cancel or refrain from exacting a debt or punishment.
Example
He promised to remit the payment by the end of the week.
Él prometió remitir el pago antes del final de la semana.
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 /ˈliːɡəlaɪz/

legalize

legalizar
Meaning
To make something lawful by official approval.
Example
The government decided to legalize online businesses.
El gobierno decidió legalizar los negocios en línea.
C1 noun /ˈmaɪlɪdʒ/

mileage

rendimiento de combustible
Meaning
The distance traveled in miles, or the fuel efficiency of a vehicle.
Example
This car gives excellent mileage on highways.
Este coche da un excelente rendimiento de combustible en las autopistas.
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 /ˈfɪʃ.ər/

fissure

fisura
Meaning
a long, narrow opening or crack in a surface or object
Example
The earthquake caused a deep fissure in the road.
El terremoto causó una fisura profunda en la carretera.
C1 noun ɡrɪt

grit

determinación
Meaning
Long-term determination and perseverance in the face of hardship and challenges.
Example
His grit and hard work led him to success.
Su determinación y trabajo arduo lo llevaron al éxito.
C1 noun /ˈmæroʊ/

Marrow

médula ósea
Meaning
A soft fatty substance in the cavities of bones; the essence of something
Example
The bone marrow produces blood cells in the human body.
La médula ósea produce células sanguíneas en el cuerpo humano.
C1 noun /ˈdrɛsˌmeɪkər/

dressmaker

modista
Meaning
A person who makes or alters women's clothing professionally.
Example
The dressmaker crafted a beautiful gown for the bride.
La modista confeccionó un hermoso vestido para la novia.
C1 verb /ɪnˈtɒksɪkeɪt/

intoxicate

felicidad
Meaning
to make someone lose control of their faculties or behavior due to alcohol or drugs
Example
The strong drink quickly intoxicated him.
No pudo esconder su felicidad cuando recibió el premio.
C1 noun /ɪkˈstrækʃən/

extraction

extracción
Meaning
the act of removing something, especially by pulling it out
Example
The extraction of oil from the ground requires special equipment.
La extracción de petróleo del suelo requiere equipos especiales.
C1 verb /prəˈkjʊər/

procure

conseguir
Meaning
to obtain something, especially with effort or difficulty
Example
They managed to procure enough supplies for the expedition.
Ellos lograron conseguir suficientes suministros para la expedición.
C1 noun /ˌfæb.rɪˈkeɪ.ʃən/

fabrication

invención falsa
Meaning
The invention of false or misleading information; a lie or falsehood.
Example
The article was full of fabrication and misleading claims.
El artículo estaba lleno de invenciones falsas y reclamos engañosos.
C1 adjective /ɪˈnænɪmət/

inanimate

objeto inanimado
Meaning
not alive, especially not in the manner of animals and humans; lifeless
Example
The museum was full of inanimate objects from ancient times.
El museo estaba lleno de objetos inanimados de tiempos antiguos.
C1 noun /ɪnˈvɜːrʒən/

inversion

inversión
Meaning
A reversal of the normal order, position, or relationship.
Example
In poetry, inversion is often used to create emphasis.
En poesía, la inversión se usa a menudo para crear énfasis.
C1 noun /ˈtrænsfərəns/

transference

transferencia
Meaning
The act of moving something from one place, person, or situation to another.
Example
The transference of knowledge is essential in education.
La transferencia de conocimiento es esencial en la educación.
C1 verb /dɪˈsɛkt/

dissect

disecar
Meaning
to cut apart an animal, plant, or other organism to study its internal parts; to analyze something in detail
Example
In biology class, students had to dissect a frog to learn about its anatomy.
En la clase de biología, los estudiantes tuvieron que diseccionar una rana para aprender sobre su anatomía.
C1 verb /ˌriːˈkɒn.stɪ.tʃuːt/

reconstitute

reconstituir
Meaning
to restore something to its original form or state; to reassemble
Example
The group was reconstituted after the leader returned.
El grupo fue reconstituido después de que el líder regresó.
C1 noun ˌdɪs.ɪnˈfek.ʃən

disinfection

desinfección
Meaning
The process of destroying harmful microorganisms to prevent infection.
Example
Kitchen appliances require frequent disinfection.
Los electrodomésticos requieren desinfección frecuente.
C1 noun /ɪkˈstræv.ə.ɡəns/

Extravagance

gasto excesivo; derroche
Meaning
lack of restraint in spending money; excessive expense
Example
The wedding celebration was criticized for its unnecessary extravagance.
La celebración de la boda fue criticada por su extravagancia innecesaria.
C1 adjective /ˈbɒt.əl ɡriːn/

Bottle-green

verde botella
Meaning
a dark green color similar to that of a green glass bottle
Example
She wore a beautiful bottle-green dress to the evening party.
Ella llevó un hermoso vestido de color verde botella a la fiesta de la noche.
C1 noun /jiːst/

Yeast

levadura
Meaning
microorganisms used in baking and brewing to cause fermentation
Example
Add yeast to the flour to make the bread rise.
Añade levadura a la harina para hacer que el pan suba.
C1 adjective /ˈbleɪtənt/

blatant

flagrante
Meaning
done openly and unashamedly; obvious and offensive
Example
The company's blatant disregard for safety regulations angered the public.
La flagrante indiferencia de la empresa hacia las normas de seguridad enfureció al público.
C1 verb /ˈhæmpər/

hamper

impedir
Meaning
to hinder or impede the movement or progress of
Example
The heavy rain hampered our travel plans.
La fuerte lluvia impidió nuestros planes de viaje.
C1 noun /kənˈtentmənt/

contentment

satisfacción
Meaning
a state of happiness and satisfaction with what one has
Example
She felt a deep sense of contentment after helping others.
Sintió una profunda satisfacción después de ayudar a otros.
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 /ləˈɡuːn/

lagoon

laguna
Meaning
A shallow body of water separated from the sea by sandbars or reefs.
Example
We swam in the calm waters of the lagoon.
Nadamos en las tranquilas aguas de la laguna.
C1 noun /ˈpɪɡmənt/

pigment

pigmento
Meaning
a natural or artificial substance used to give color to something
Example
The artist mixed different pigments to create the perfect shade of blue.
El artista mezcló diferentes pigmentos para crear el tono perfecto de azul.
C1 noun/adjective /ˈlɛzbiən/

lesbian

lesbiana
Meaning
a woman who is romantically or sexually attracted to other women
Example
She is a proud lesbian and advocates for equal rights.
Ella es una lesbiana orgullosa y aboga por los derechos iguales.
C1 noun /ˈɡæm.ət/

gamut

rango completo
Meaning
The complete range or scope of something.
Example
Her emotions ran the gamut from joy to sorrow in just a few minutes.
Sus emociones pasaron del gozo a la tristeza en solo unos minutos.
C1 verb /ˈræʃənaɪz/

rationlize

racionalizar
Meaning
to justify or explain something with logical reasons, even if not appropriate or true
Example
He tried to rationlize his mistake by blaming the system.
Él trató de racionalizar su error culpando al sistema.
C1 noun /ˈɡreɪvstoʊn/

gravestone

lápida
Meaning
A stone that marks a grave, usually inscribed with the name of the deceased.
Example
The gravestone had her name carved beautifully.
La lápida tenía su nombre grabado hermosamente.
C1 noun /ˈtæbloʊ/

tableau

tablao
Meaning
a striking or artistic scene or arrangement of people or objects, often presented on stage or in art
Example
The actors froze in a tableau that captured the final moment of the play.
Los actores se congelaron en un tablao que capturó el momento final de la obra.
C1 noun ˈtær.ɪf

tariff

arancel o impuesto sobre importaciones y exportaciones
Meaning
A tax or duty to be paid on a particular class of imports or exports.
Example
The government imposed high tariffs on luxury goods.
El gobierno impuso altos aranceles sobre los productos de lujo.
C1 verb /ɪˈnɔːɡjʊreɪt/

inaugurate

inaugurar
Meaning
To formally begin or introduce something, especially with a ceremony.
Example
The mayor will inaugurate the new bridge tomorrow.
El alcalde inaugurará el nuevo puente mañana.
C1 verb /rɪˈvoʊk/

revoke

revocar
Meaning
To officially cancel or withdraw a decision, privilege, or right.
Example
The government decided to revoke his passport.
El gobierno decidió revocar su pasaporte.
C1 noun /ˌkɒn.təmˈpleɪ.ʃən/

contemplation

profunda reflexión
Meaning
The action of looking thoughtfully at something for a long time; deep reflective thought.
Example
She sat in contemplation before making her decision.
Ella se sentó en profunda reflexión antes de tomar su decisión.
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 /ˈlætərəl/

lateral

lateral
Meaning
Relating to the side or sideways movement.
Example
The football player made a quick lateral pass.
El jugador de fútbol hizo un pase lateral rápido.
C1 noun /ˈpɛsəl/

pestle

pistilo
Meaning
A heavy tool with a rounded end used for crushing or grinding substances in a mortar.
Example
She used a pestle to grind the spices.
Ella usó un pistilo para moler las especias.
C1 noun ˈiːkəʊˌsɪstəm ˈsɜːvɪsɪz

ecosystem services

servicios ecosistémicos
Meaning
The benefits people obtain from ecosystems.
Example
Forests provide valuable ecosystem services, such as purifying air and water.
Los bosques proporcionan valiosos servicios ecosistémicos, como la purificación del aire y el agua.
C1 adjective /ˈbaɪtɪŋ/

Biting

mordiendo; frío intenso; crítico agudo o áspero
Meaning
extremely cold; sharply critical or harsh
Example
The biting cold made everyone shiver.
El frío mordaz hizo que todos temblaran.
C1 noun /ræˈpɔːr/

rapport

relación
Meaning
A close and harmonious relationship in which the people or groups concerned understand each other's feelings or ideas.
Example
The teacher built a strong rapport with her students.
La maestra construyó un fuerte rapport con sus estudiantes.
C1 verb /ˈhjuːmənaɪz/

humanize

humanizar
Meaning
To make something more humane, kind, or relatable.
Example
The teacher tried to humanize the lesson with personal stories.
La maestra trató de humanizar la lección con historias personales.
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 verb /sɪndʒ/

singe

quemar ligeramente
Meaning
To burn something superficially or lightly, especially at the edges.
Example
The fire singed his eyebrows.
El fuego le quemó las cejas.
C1 adjective /haɪˈdrɔːlɪk/

hydraulic

hidráulico
Meaning
operated by the pressure of liquid, especially water or oil
Example
The mechanic repaired the hydraulic system of the machine.
El mecánico reparó el sistema hidráulico de la máquina.
C1 adjective /həˈbɪtʃuəl/

habitual

habitual
Meaning
Done or doing constantly or as a habit; customary.
Example
He was a habitual latecomer to class.
Él era un habitual retrasado en clase.
C1 noun /ˈdɪm.pəl/

Dimple

hoyuelo
Meaning
a small depression in the flesh, either one that exists permanently or one that forms when smiling
Example
Her charming dimples appeared whenever she smiled at the children.
Sus encantadores hoyuelos aparecían siempre que sonreía a los niños.
C1 noun ˈrəʊvə

rover

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

taxonomy

ciencia de la clasificación
Meaning
The science or practice of classifying things, especially organisms.
Example
Modern taxonomy helps scientists organize and study biodiversity.
La taxonomía moderna ayuda a los científicos a organizar y estudiar la biodiversidad.
C1 noun /ˌdɪp.ləˈmæt.ɪk ˈmaɪl.stəʊn/

diplomatic milestone

hito diplomático
Meaning
A significant achievement or important event in diplomatic relations.
Example
Hosting the summit was a diplomatic milestone.
La organización de la cumbre fue un hito diplomático.
C1 verb, noun /kweɪl/

quail

atemorizarse; un pájaro pequeño de cola corta
Meaning
verb: to feel or show fear; noun: a small, short-tailed bird
Example
She quailed at the sight of the approaching storm.
Ella se acobardó al ver la tormenta que se acercaba.
C1 verb /kənˈstrɪkt/

constrict

contraer
Meaning
to make narrower or tighter; to shrink or compress
Example
The snake constricted its prey before swallowing.
La serpiente contrajo a su presa antes de tragarla.
C1 noun /pɜːrl drɒp/

Pearl drop

gota de perla
Meaning
a single pearl used as jewelry, often in earrings or pendants
Example
The elegant pearl drop earrings complemented her outfit perfectly.
Los elegantes pendientes de gota de perla complementaron su atuendo perfectamente.
C1 verb /ˈbæfəl/

baffle

desconcertar
Meaning
to confuse; to be too difficult to understand
Example
The math problem baffles me completely.
El problema de matemáticas me desconcierta completamente.
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 /ɪmˈbɛzlmənt/

embezzlement

malversación
Meaning
The act of dishonestly taking money or property entrusted to one's care.
Example
The accountant was arrested for embezzlement of company funds.
El contador fue arrestado por la malversación de fondos de la empresa.
C1 adjective /ˈfɜːr.vənt/

fervent

apasionado, entusiasta
Meaning
having or showing intense passion or enthusiasm
Example
She gave a fervent speech about climate change.
Ella dio un discurso apasionado sobre el cambio climático.
C1 verb /ˈrʌf.l̩/

ruffle

desordenar, molestar
Meaning
to disturb the smoothness of something; to annoy or upset someone
Example
The wind ruffled her hair.
El viento desordenó su cabello.
C1 adjective ˌæd.vɚˈser.i.əl

adversarial

adversarial
Meaning
Involving or characterized by conflict or opposition.
Example
The two companies have an adversarial relationship in the market.
Las dos empresas tienen una relación adversarial en el mercado.
C1 adjective /əbˈtjuːs/

Obtuse

tonto; obtuso; lento de comprensión
Meaning
annoyingly insensitive or slow to understand; lacking in intelligence or perception
Example
He was being deliberately obtuse about the instructions.
Él estaba siendo deliberadamente obtuso sobre las instrucciones.
C1 noun /ˈbuːt.stræp.ɪŋ/

bootstrapping

autofinanciamiento
Meaning
Starting a business with personal resources or small investments without external funding or venture capital.
Example
Many entrepreneurs rely on bootstrapping to launch their businesses.
Muchos emprendedores dependen del bootstrapping para lanzar sus negocios.
C1 noun /helm/

Helm

timón
Meaning
a tiller or wheel for steering a ship or boat; a position of leadership or control
Example
The experienced captain took the helm and expertly navigated the ship through the storm.
El capitán experimentado tomó el timón y navegó el barco a través de la tormenta con destreza.
C1 noun /ˈrʌfiən/

Ruffian

bribón; persona violenta;
Meaning
a violent person, especially one involved in crime; a brutal or lawless person
Example
The ruffian threatened the shopkeeper for money.
El bribón amenazó al tendero por dinero.
C1 adjective /bɪˈnaɪn/

benign

benigno, inofensivo
Meaning
Gentle, kind, or not harmful (especially of a disease or tumor).
Example
The doctor assured her that the tumor was benign.
El médico le aseguró que el tumor era inofensivo.
C1 noun /ˈskæf.əld/

Scaffold

andamio
Meaning
a temporary structure used by workers to stand on when building or repairing something high; a platform for execution
Example
The workers erected a scaffold to paint the building's exterior.
Los trabajadores erigieron un andamio para pintar el exterior del edificio.
C1 noun /ˈɪn.tə.mə.si/

Intimacy

intimidad; cercanía
Meaning
close familiarity or friendship; closeness; a private cozy atmosphere
Example
The couple valued the emotional intimacy they shared more than material possessions.
La pareja valoró más la intimidad emocional que compartieron que las posesiones materiales.
C1 verb /ˌmɪsˈmænɪdʒ/

mismanage

gestionar mal
Meaning
to handle or control something badly or inefficiently
Example
The company went bankrupt because it was mismanaged for years.
La empresa quebró porque estuvo mal gestionada durante años.
C1 adverb /ˈhʌŋ.ɡrə.li/

Hungrily

con hambre; avariciosamente; con ansia
Meaning
in a way that shows hunger; greedily; eagerly
Example
The dog ate hungrily after not eating for hours.
El perro comió con hambre después de no haber comido durante horas.
C1 verb /ədˈmɪnɪstreɪt/

administrate

administrar
Meaning
to manage or supervise the execution of duties, laws, or resources; to formally give or apply something such as a test or medicine
Example
The committee will administrate the new policy across all departments.
El comité administrará la nueva política en todos los departamentos.
C1 noun /næk/

knack

habilidad
Meaning
a natural skill or ability; a special talent for doing something easily
Example
She has a knack for making people feel comfortable.
Ella tiene una habilidad para hacer que las personas se sientan cómodas.
C1 verb /ˈnjuːtrəlaɪz/

neutralize

neutralizar
Meaning
to make something ineffective or harmless
Example
The medicine helped neutralize the poison in his system.
La medicina ayudó a neutralizar el veneno en su sistema.
C1 noun /ˈdɑːrwɪnɪzəm/

darwinism

darwinismo
Meaning
the theory of biological evolution developed by Charles Darwin, emphasizing natural selection
Example
Darwinism revolutionized the way scientists understood the origin of species.
El darwinismo revolucionó la forma en que los científicos entendían el origen de las especies.
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 noun /ˌæntɪˈsiːdənts/

antecedents

antecedentes
Meaning
previous events, conditions, or people that influence or serve as a basis for something that follows
Example
The lawyer examined the criminal antecedents of the suspect.
El abogado examinó los antecedentes criminales del sospechoso.
C1 noun /krəˈʃɛndoʊ/

crescendo

aumento gradual del volumen
Meaning
a gradual increase in loudness or intensity, especially in music
Example
The orchestra built to a powerful crescendo before the finale.
La orquesta construyó un poderoso crescendo antes del final.
C1 noun /ˈkɜːrfjuː/

curfew

toque de queda
Meaning
a rule requiring people to stay indoors after a certain time, usually at night
Example
The city imposed a curfew during the unrest.
La ciudad impuso un toque de queda durante los disturbios.
C1 verb /ˌoʊvərˈθroʊ/

overthrow

felicidad
Meaning
To remove a leader or government from power, often by force.
Example
The rebels planned to overthrow the corrupt regime.
No pudo esconder su felicidad cuando recibió el premio.
C1 noun /ˈsuːdənɪm/

pseudonym

seudónimo
Meaning
a fictitious name used by an author instead of their real name
Example
Mark Twain was the pseudonym of Samuel Clemens.
Mark Twain era el seudónimo de Samuel Clemens.
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, adjective /ˌproʊlɪˈtɛəriən/

proletarian

proletario
Meaning
Relating to the working class, especially those who do not own property.
Example
The movement was rooted in proletarian struggles.
El movimiento estaba arraigado en las luchas proletarias.
C1 noun /ɪˈreləvəns/

irrelevance

irrelevancia
Meaning
the quality of not being connected to or important for a particular matter; lack of significance
Example
His long explanation only highlighted the irrelevance of the details to the main issue.
Su larga explicación solo resaltó la irrelevancia de los detalles para el tema principal.
C1 verb /rɪˈsɪprəˌkeɪt/

reciprocate

reciprocidad
Meaning
To respond to an action or gesture by making a corresponding one.
Example
She smiled at him, and he reciprocated with a warm hug.
Ella sonrió, y él reciprocó con un abrazo cálido.
C1 verb /daɪˈvɛst/

divest

desinvertir
Meaning
to strip away possessions, rights, or assets; to rid oneself of
Example
The company decided to divest its unprofitable division.
La empresa decidió desinvertir su división no rentable.