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C1 verb /ˈrɪvɪt/

rivet

asegurar con remache / captar la atención
Meaning
to fasten or secure with a rivet; to hold someone’s attention firmly
Example
The craftsman riveted the metal plates together.
El artesano riveteó las placas de metal juntas.
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 verb /ˈɒp.tɪ.maɪz/

optimize

optimizar
Meaning
To make the best or most effective use of a situation, opportunity, or resource.
Example
The company is working to optimize its supply chain.
La empresa está trabajando para optimizar su cadena de suministro.
C1 noun /vərˈnækjələr/

vernacular

lengua vernácula
Meaning
the language or dialect spoken by ordinary people in a particular region
Example
He gave his speech in the local vernacular so everyone could understand.
Él dio su discurso en la lengua vernácula local para que todos pudieran entender.
C1 noun /ˈrɪpəl/

Ripple

onda
Meaning
a small wave on the surface of water; a spreading effect or influence
Example
The stone created ripples across the calm pond.
La piedra creó ondas en el tranquilo estanque.
C1 adjective /hɪpˈnɒtɪk/

hypnotic

hipnótico
Meaning
Producing sleep or a trance-like state; mesmerizing.
Example
The music had a hypnotic effect on the audience.
La música tuvo un efecto hipnótico en la audiencia.
C1 verb /dɪˈsɛm.ɪ.neɪt/

disseminate

diseminar
Meaning
To spread or give out something, especially news, information, ideas, etc., to a lot of people.
Example
Social media helps to disseminate information quickly.
Las redes sociales ayudan a difundir información rápidamente.
C1 adjective /ˈhæk.nid/

hackneyed

cliché
Meaning
Used too often and therefore lacking originality or freshness.
Example
The speech was filled with hackneyed phrases that failed to inspire the audience.
El discurso estaba lleno de frases cliché que no lograron inspirar al público.
C1 verb /ˌpriːˈmɛdɪteɪt/

premeditate

premeditar
Meaning
to think about and plan something (especially a crime) beforehand
Example
The suspect was accused of premeditating the crime.
El sospechoso fue acusado de premeditar el crimen.
C1 adjective /ˈskrɔːni/

scrawny

flaco
Meaning
very thin and bony, often looking unhealthy
Example
The scrawny boy could barely lift the heavy bag.
El chico flaco apenas podía levantar la bolsa pesada.
C1 adjective /riˈæk.tɪv/

Reactive

reactivo; químicamente activo
Meaning
responding to situations rather than initiating them; chemically active
Example
The company took a reactive approach to customer complaints.
La empresa adoptó un enfoque reactivo hacia las quejas de los clientes.
C1 noun /kwɔːrˈtɛt/

quartet

cuarteto
Meaning
A group of four people playing music or singing together.
Example
The string quartet performed beautifully at the concert.
El cuarteto de cuerdas actuó maravillosamente en el concierto.
C1 noun /rentʃ/

Wrench

llave inglesa
Meaning
a tool used for gripping and turning nuts, bolts, or pipes
Example
He used a wrench to tighten the bolt.
Usó una llave inglesa para apretar el perno.
C1 verb /ˈskævɪndʒ/

scavenge

buscar entre la basura
Meaning
to search through waste or discarded material to find useful items
Example
The children scavenged for food in the garbage dump.
Los niños scavengaron para encontrar comida en el basurero.
C1 verb /ɪmˈpɛər/

impair

deteriorar
Meaning
to weaken or damage something, especially a function or ability
Example
Smoking can impair your lung capacity.
Fumar puede dañar tu capacidad pulmonar.
C1 adjective /ˈliːf.ləs/

Leafless

sin hojas; desnudo
Meaning
without leaves; bare
Example
The leafless trees looked bare in winter.
Los árboles sin hojas se veían desnudos en invierno.
C1 noun /kənˈfaɪnmənt/

confinement

confinamiento
Meaning
the state of being confined or restricted
Example
The prisoner endured years of confinement.
El prisionero soportó años de confinamiento.
C1 verb /paʊt/

pout

hacer pucheros
Meaning
to push one's lips forward as an expression of annoyance or sulkiness
Example
The child began to pout when he didn’t get the toy.
El niño empezó a hacer pucheros cuando no consiguió el juguete.
C1 noun /pluːm/

plume

una gran pluma suave o algo que se asemeje a una pluma
Meaning
a large, soft feather or something resembling a feather
Example
The soldier wore a red plume on his helmet.
El soldado llevaba una pluma roja en su casco.
C1 adjective /steɪd/

staid

serio, respetable
Meaning
Serious, respectable, and unadventurous.
Example
He came from a staid family background.
Él vino de una familia seria.
C1 adjective ˈɪn.tər.ɪm

interim

interino
Meaning
In or for the intervening period; provisional or temporary.
Example
Interim governments manage transitional phases.
Los gobiernos interinos gestionan fases de transición.
C1 verb /dɪˈnəʊt/

denote

denotar
Meaning
To be a sign of; to indicate or mean something.
Example
A red flag denotes danger.
Una bandera roja denota peligro.
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 /θrɒb/

throb

latir
Meaning
to beat or pulse strongly, often with pain
Example
His head began to throb after the long day.
Su cabeza comenzó a latir después de todo el día.
C1 verb /struː/

strew

esparcir
Meaning
to scatter or spread things untidily over a surface or area
Example
Clothes were strewn across the floor.
La ropa estaba esparcida por el suelo.
C1 noun /rɪˌsɛptɪˈvɪti/

receptivity

receptividad
Meaning
The ability or willingness to receive something, especially signals or stimuli.
Example
Her receptivity to new ideas helped improve the project.
Su receptividad a nuevas ideas ayudó a mejorar el proyecto.
C1 noun /ˌdiːpɔːrˈteɪʃən/

deportation

deportación
Meaning
The act of expelling a foreigner from a country.
Example
The deportation of hundreds of workers sparked international criticism.
La deportación de cientos de trabajadores provocó críticas internacionales.
C1 verb /wɪns/

wince

hacer una mueca por dolor
Meaning
To make an involuntary movement of the face or body as a result of pain or distress.
Example
He winced when the doctor touched his injured arm.
Él hizo una mueca cuando el doctor tocó su brazo herido.
C1 verb /skrɔːl/

scrawl

escribir rápidamente y de manera desordenada
Meaning
to write or draw something quickly and carelessly, making it hard to read
Example
He scrawled his signature at the bottom of the page.
Él scrawle su firma en la parte inferior de la página.
C1 noun /ˌpærəˈnɔɪə/

paranoia

miedo irracional y persistente de que las personas están 'tratando de hacerle daño' o lo están observando constantemente
Meaning
an irrational and persistent feeling that people are 'out to get you' or are constantly watching you
Example
His constant paranoia made it hard for him to trust anyone.
Su paranoia constante hacía que fuera difícil confiar en cualquiera.
C1 noun ɪnˈdɪdʒɪnəs trəˈdɪʃənz

Indigenous Traditions

Tradiciones indígenas
Meaning
Cultural practices, beliefs, and customs that have been passed down through generations among native peoples.
Example
Indigenous traditions in the Chittagong Hill Tracts are unique.
Las tradiciones indígenas en los Chittagong Hill Tracts son únicas.
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 adjective /ɪmˈpɛn.ɪ.trə.bəl/

impenetrable

impenetrable
Meaning
Impossible to pass through or enter; impossible to understand.
Example
The dense forest was nearly impenetrable.
El bosque denso era casi impenetrable.
C1 adverb /ˈnoʊɪŋli/

knowingly

conscientemente
Meaning
in a way that shows you are aware of something; intentionally
Example
She knowingly kept the secret from her friends.
Ella conscientemente guardó el secreto de sus amigos.
C1 noun /ˌiː.kwɪˈlɪb.ri.əm/

equilibrium

equilibrio
Meaning
A state of physical balance or stability in physical, mental, or economic conditions.
Example
The market reached an equilibrium between supply and demand.
El mercado alcanzó un equilibrio entre la oferta y la demanda.
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 /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 /ˌæntiˈklaɪmæks/

anticlimax

anticlimax
Meaning
A disappointing end after a big build-up of excitement or expectation.
Example
The movie's ending was an anticlimax after such a thrilling story.
El final de la película fue un anticlimax después de una historia tan emocionante.
C1 verb /ˈɡlɪsən/

glisten

brillar
Meaning
To shine with a sparkling light, often when wet or polished.
Example
The grass glistened with morning dew.
La hierba brillaba con el rocío de la mañana.
C1 noun /ˈkɑːmənˌwɛlθ/

commonwealth

Commonwealth
Meaning
an independent community or state, especially one founded for the common good; also an association of nations
Example
Australia is a member of the Commonwealth of Nations.
Australia es miembro de la Commonwealth de Naciones.
C1 adjective /dɪˈsiːtfəl/

deceitful

engañoso
Meaning
Deliberately misleading or dishonest.
Example
She gave a deceitful answer to hide the truth.
Ella dio una respuesta engañosa para ocultar la verdad.
C1 noun /krʌˈsteɪʃən/

crustacean

animal acuático con caparazón duro
Meaning
an aquatic animal with a hard shell, such as crabs, lobsters, and shrimps
Example
Crabs and lobsters are well-known crustaceans.
Los cangrejos y langostas son conocidos crustáceos.
C1 adjective /ˈæm.ɪ.kə.bəl/

amicable

amistoso
Meaning
Having a spirit of friendliness; without serious disagreement or rancor.
Example
They reached an amicable agreement.
Alcanzaron un acuerdo amistoso.
C1 adjective /ˈtɜːrbjələnt/

turbulent

turbulento
Meaning
Characterized by conflict, disorder, or confusion; not stable or calm.
Example
The country went through a turbulent period of political change.
El país pasó por un período turbulento de cambio político.
C1 adjective /ɪɡˈzæspəˌreɪtɪd/

exasperated

muy molesto
Meaning
greatly annoyed or irritated
Example
She gave him an exasperated look after his repeated mistakes.
Ella le dio una mirada muy molesta después de sus errores repetidos.
C1 verb /trænˈspaɪər/

transpire

suceder
Meaning
to occur, happen, or become known
Example
It transpired that he had lied about his age.
Resultó que él había mentido sobre su edad.
C1 noun /ˈfɪɡjərˌhɛd/

figurehead

cabeza simbólica
Meaning
a nominal leader with no real power; a symbolic head
Example
The king was merely a figurehead with no real authority.
El rey era simplemente un líder simbólico sin poder real.
C1 adjective /ˌɪnkənˈkluːsɪv/

inconclusive

inconcluso
Meaning
Not leading to a definite result or decision.
Example
The investigation remained inconclusive due to a lack of evidence.
La investigación permaneció inconclusa debido a la falta de evidencia.
C1 adjective /ˌkɒndɪˈsɛndɪŋ/

condescending

condescendiente
Meaning
having or showing an attitude of patronizing superiority
Example
Her condescending tone upset her colleagues.
Su tono condescendiente molestó a sus compañeros.
C1 noun /kɑːrˈtɒɡrəfi/

cartography

cartografía
Meaning
The science or practice of drawing maps.
Example
She studied cartography at university to learn how to design maps.
Estudió cartografía en la universidad para aprender a diseñar mapas.
C1 verb /dɪˈfɔːrm/

deform

deformar
Meaning
to change the shape or form of something, especially in a way that makes it ugly or damaged; to distort
Example
The intense heat began to deform the plastic container.
El calor intenso comenzó a deformar el recipiente de plástico.
C1 noun /ˈdiːviəns/

deviance

desviación
Meaning
Behavior that differs from accepted social or moral standards.
Example
The book studies deviance in urban youth culture.
El libro estudia la desviación en la cultura juvenil urbana.
C1 adjective /ˈædʒɪteɪtɪd/

Agitated

agitado; inquieto; nervioso; excitado de manera negativa
Meaning
disturbed; anxious; restless; excited in a negative way
Example
He became agitated when he heard the bad news.
Se agitou cuando escuchó las malas noticias.
C1 noun /ˈmɪs.hæp/

Mishap

accidente; percance; desastre
Meaning
An unlucky accident or unfortunate event, typically minor
Example
The cooking mishap resulted in a burnt dinner.
El percance en la cocina resultó en una cena quemada.
C1 noun ˌkɒn.əˈteɪ.ʃən

connotation

significado implícito o sugerido
Meaning
The implied or suggested meaning of a word beyond its literal definition
Example
The word 'home' has a warm connotation of comfort and family.
La palabra 'hogar' tiene una connotación cálida de comodidad y familia
C1 noun /ˌɡaɪnəˈkɒlədʒi/

gynecology

ginecología
Meaning
the branch of medicine dealing with women's reproductive health
Example
She decided to specialize in gynecology after medical school.
Decidió especializarse en ginecología después de la escuela de medicina.
C1 noun /mæɡˈnɪfɪsəns/

magnificence

magnificencia
Meaning
splendor, grandeur, or impressive beauty
Example
The magnificence of the palace left everyone speechless.
La magnificencia del palacio dejó a todos sin palabras.
C1 noun /bɪz/

Biz

negocios
Meaning
business (informal); commercial enterprise or activity
Example
He's been in the restaurant biz for twenty years.
Ha estado en el negocio de los restaurantes durante veinte años.
C1 noun /ˈmoʊ.tər ˈlɔː.ri/

Motor lorry

camión motorizado
Meaning
a large motor vehicle used for transporting goods; truck
Example
The motor lorry delivered fresh vegetables to the market.
El camión motorizado entregó verduras frescas al mercado.
C1 noun /ˈlʊkaʊt/

lookout

vigilancia, vigilancia
Meaning
A place for watching; a person keeping watch.
Example
The guard kept a lookout for suspicious activity.
El guardia mantenía un lookout para actividades sospechosas.
C1 noun /kɒzˈmɒlədʒi/

cosmology

cosmología
Meaning
the science of the origin and development of the universe
Example
She studied cosmology to understand the origins of the universe.
Estudió cosmología para entender los orígenes del universo.
C1 noun /ˈded.lɑk/

Dead-lock

bloqueo; estancamiento
Meaning
a situation in which no progress is possible; complete standstill
Example
The negotiations reached a deadlock when neither side would compromise.
Las negociaciones llegaron a un bloqueo cuando ninguna de las partes estuvo dispuesta a ceder.
C1 adjective /ˈsæk.rəˌsæŋkt/

sacrosanct

sacrosonante
Meaning
Regarded as too important or valuable to be interfered with; sacred.
Example
Freedom of speech is considered sacrosanct in democratic societies.
La libertad de expresión se considera sacrosanta en las sociedades democráticas.
C1 noun kəˈmɑːnd ɪˈkɒn.ə.mi

command economy

economía planificada
Meaning
An economic system where economic activities are controlled by the government.
Example
In a command economy, the government controls production and prices.
En una economía planificada, el gobierno controla la producción y los precios.
C1 verb, noun /mʊər/

moor

atar / terreno baldío
Meaning
As a verb: to tie a ship so that it stays in place. As a noun: open, uncultivated land.
Example
The sailors moored the ship at the dock.
Los marineros amarraron el barco en el muelle.
C1 noun /ˈæltoʊ/

alto

alto (una voz de canto de adulto)
Meaning
the second highest adult singing voice, between soprano and tenor
Example
She sang the alto part in the choir beautifully.
Ella cantaba la parte del alto en el coro hermosamente.
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, noun /ˈdɛrəlɪkt/

derelict

abandonado
Meaning
in poor condition due to neglect or disuse; a homeless or neglected person
Example
The old factory stood derelict for decades.
La vieja fábrica estuvo abandonada durante décadas.
C1 noun /ˈræp.tʃər/

rapture

éxtasis, rapto
Meaning
A feeling of intense joy, delight, or ecstasy.
Example
She listened to the music in rapture.
Ella escuchaba la música en éxtasis.
C1 noun /ˌsaɪkoʊˈθɛrəpi/

psychotherapy

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

pinnacle

cima
Meaning
the highest point or peak of something, especially of success or achievement
Example
Winning the Nobel Prize was the pinnacle of her career.
Ganar el Premio Nobel fue el pináculo de su carrera.
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.
C1 adjective dɪ ˈskrɛʃ.ən.er.i

discretionary

discrecional
Meaning
Available for use at the discretion of the user; not required or mandatory.
Example
He set aside some discretionary income for travel.
Él apartó algo de ingreso discrecional para viajar.
C1 noun, adjective /ˈkɪndrəd/

kindred

felicidad
Meaning
A person's relatives or family; similar in nature or character.
Example
They discovered kindred spirits in each other.
No pudo esconder su felicidad cuando recibió el premio.
C1 noun /ˈrɛzɪn/

resin

resina
Meaning
a sticky organic substance, usually secreted by plants, often used in varnishes or plastics
Example
The craftsman used natural resin to make the sculpture shine.
El artesano usó resina natural para hacer que la escultura brillara.
C1 noun /ˈfaɪər.wɔːl/

firewall

cortafuegos
Meaning
A network security system that monitors and controls incoming and outgoing network traffic based on predetermined security rules.
Example
A firewall protects networks from cyber-attacks.
Un cortafuegos protege las redes de ciberataques.
C1 adverb /ˈpiːs.miːl/

Piecemeal

fragmentado; en pedazos
Meaning
done or made gradually, one piece at a time; fragmentary; unsystematic
Example
The renovation was done piecemeal over several years due to budget constraints.
La renovación se hizo poco a poco durante varios años debido a las restricciones presupuestarias.
C1 noun /əˈpɒlədʒɪst/

apologist

defensor
Meaning
a person who defends or justifies something, often a controversial belief or institution
Example
He is known as an apologist for authoritarian regimes.
Él es conocido como un defensor de los regímenes autoritarios.
C1 noun /məˈleɪz/

malaise

malestar
Meaning
a general feeling of discomfort, illness, or unease whose exact cause is difficult to identify
Example
After the long journey, she felt a general malaise.
Después del largo viaje, ella sintió un malestar general.
C1 adjective /ɪˈfɛm.ər.əl/

ephemeral

efímero
Meaning
Lasting for a very short time; temporary or transitory.
Example
The beauty of cherry blossoms is ephemeral.
La belleza de las flores de cerezo es efímera.
C1 adjective /həˈred.ɪ.ter.i/

Hereditary

hereditario; transmitido por los antepasados
Meaning
passed down through family genes; inherited from ancestors
Example
The hereditary disease was passed down through generations.
La enfermedad hereditaria se transmitió a través de las generaciones.
C1 noun ˈwaɪldlaɪf ˈkɔːrɪdɔːrz

wildlife corridors

corredores de vida silvestre
Meaning
Areas of habitat connecting wildlife populations separated by human activities or structures.
Example
Wildlife corridors connect fragmented habitats, enabling species migration.
Los corredores de vida silvestre conectan hábitats fragmentados, permitiendo la migración de especies.
C1 verb /ˈsmʌðər/

smother

sofocar / asfixiar
Meaning
to kill someone by covering their nose and mouth to prevent breathing; to cover something completely; to overwhelm with excessive attention or affection
Example
She smothered the fire with a blanket.
Ella sofocó el fuego con una manta.
C1 adjective /aɪˈdɪlɪk/

idyllic

idílico y hermoso
Meaning
Like an idyll; extremely happy, peaceful, or picturesque.
Example
They enjoyed an idyllic vacation by the sea.
Disfrutaron de unas vacaciones idílicas junto al mar.
C1 adjective /ˈstɪltɪd/

stilted

artificial, forzado
Meaning
Speech or writing that is stiff, unnatural, or overly formal.
Example
His speech sounded stilted and rehearsed.
Su discurso sonaba forzado y ensayado.
C1 adjective /ɪˈnɜːrt/

inert

inactivo
Meaning
lacking the ability or strength to move or act; chemically inactive
Example
The patient remained inert on the bed.
El paciente permaneció inactivo en la cama.
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 /ɪnˈfjuːʒən/

infusion

infusión
Meaning
the act of introducing something into another; a drink made by steeping leaves or herbs in liquid
Example
She prepared a calming infusion of chamomile tea.
Ella preparó una infusión calmante de té de manzanilla.
C1 noun /ˈmɜːrsəˌnɛri/

mercenary

mercenario
Meaning
a professional soldier hired to serve in a foreign army; also used to describe someone motivated solely by money.
Example
The mercenary fought for whoever paid the highest wage.
El mercenario luchó por quien pagó el salario más alto.
C1 adjective /rɪˈper.ə.bəl/

Repairable

reparable
Meaning
able to be fixed or mended; capable of being repaired
Example
The broken phone is repairable with the right parts.
El teléfono roto se puede reparar con las piezas adecuadas.
C1 verb /ˈlɪbəreɪt/

liberate

liberar
Meaning
to set free from imprisonment, oppression, or restraint
Example
The army liberated the city from enemy control.
El ejército liberó la ciudad del control enemigo.
C1 noun /ˌtrɛpɪˈdeɪʃən/

trepidation

temor
Meaning
a feeling of fear or anxiety about something that may happen
Example
She opened the letter with some trepidation.
Ella abrió la carta con algo de temor.
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 noun /ˈmɛləˌdrɑːmə/

melodrama

melodrama exagerado
Meaning
A dramatic piece with exaggerated characters and exciting events intended to appeal to the emotions.
Example
The movie was criticized for its excessive melodrama.
La película fue criticada por su melodrama excesivo.
C1 verb /loʊð/

loathe

detestar
Meaning
to feel intense dislike or disgust for
Example
He absolutely loathes being late to meetings.
Él odia llegar tarde a las reuniones.
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 noun /kwɑːm/

qualm

duda
Meaning
a feeling of doubt, worry, or fear about something
Example
She had no qualm about speaking her mind.
Ella no tuvo duda en decir lo que pensaba.
C1 verb /ˈwɒb.l̩/

wobble

tambalear
Meaning
to move unsteadily from side to side; to shake or tremble slightly
Example
The table began to wobble when he leaned on it.
La mesa comenzó a tambalear cuando él se apoyó sobre ella.
C1 noun /ˌɑːsɪˈleɪʃən/

oscillation

oscilación
Meaning
The movement back and forth at a regular speed.
Example
The oscillation of the pendulum controls the clock.
La oscilación del péndulo controla el reloj.
C1 noun /ɡəˈzet/

Gazette

gaceta
Meaning
an official journal or newspaper, especially one published by an organization or government
Example
The promotion was officially announced in the government gazette last week.
La promoción fue anunciada oficialmente en la gaceta del gobierno la semana pasada.
C1 verb /ˈhaɪbərˌneɪt/

hibernate

hibernar
Meaning
To spend the winter in a dormant state, as some animals do.
Example
Bears hibernate in caves during the winter.
Los osos hibernan en cuevas durante el invierno.
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 /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 adjective /ˈɪnsələnt/

insolent

insolente, arrogante
Meaning
showing a rude and arrogant lack of respect
Example
The insolent student refused to follow the teacher's instructions.
El estudiante insolente se negó a seguir las instrucciones del maestro.
C1 noun /nɔːrm/

Norm

norma; estándar; regla; tradición
Meaning
a standard of behavior; what is typical or expected
Example
Working late has become the norm in this company.
Trabajar hasta tarde se ha convertido en la norma en esta empresa.
C1 adjective, noun /rɪˈsiːvəbl/

receivable

cobrable
Meaning
Money that is owed to a company and is expected to be paid.
Example
The company's receivables increased significantly this quarter.
Los cobros de la empresa aumentaron significativamente este trimestre.
C1 noun /rɪˈfɜːrər/

referrer

referidor
Meaning
a person who directs someone to another person or service
Example
The referrer earned a bonus for recommending a new client.
El referidor ganó un bono por recomendar un nuevo cliente.
C1 noun, adjective /ˈlæksətɪv/

laxative

laxante
Meaning
A medicine or substance that stimulates bowel movements; tending to loosen or relieve constipation.
Example
The doctor prescribed a mild laxative for her condition.
El médico recetó un laxante suave para su condición.
C1 noun /mɪˈlɪʃə/

militia

milicia
Meaning
a group of ordinary people who are trained to act as soldiers in emergencies
Example
The village formed a militia to defend against attacks.
El pueblo formó una milicia para defenderse de los ataques.
C1 adjective /ˈmaʊntɪnəs/

Mountainous

montañoso
Meaning
having many mountains; characterized by mountains
Example
The mountainous region was difficult to travel through.
La región montañosa era difícil de recorrer.
C1 adjective /ˈsɪm.jʊ.leɪ.tɪd/

simulated

simulado
Meaning
Artificially created to look real but not actually real.
Example
The pilot trained in a simulated flight environment.
El piloto entrenó en un ambiente de vuelo simulado.
C1 noun /ɪˈnæməl/

enamel

esmalte
Meaning
a hard, glossy substance used as a protective or decorative coating; the hard outer layer of teeth
Example
The dentist explained that enamel protects the teeth from decay.
El dentista explicó que el esmalte protege los dientes de la caries.
C1 noun /krʌks/

crux

el núcleo
Meaning
the most important or decisive point of an issue
Example
The crux of the problem lies in poor communication.
El núcleo del problema radica en la mala comunicación.
C1 adjective /ˈkɔː.zəl/

causal

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

implore

implorar
Meaning
To beg someone earnestly or desperately to do something.
Example
She implored him to stay with her.
Ella le imploró que se quedara con ella.
C1 verb /sərˈmaɪz/

surmise

suponer
Meaning
to suppose something is true without having evidence
Example
She surmised that he was not coming to the meeting.
Ella supuso que él no iba a venir a la reunión.
C1 adjective /ɪˈluːsɪv/

elusive

difícil de encontrar
Meaning
Difficult to find, catch, or achieve; hard to understand or define.
Example
The solution to the problem proved elusive.
La solución al problema resultó difícil de encontrar.
C1 verb /rɪˈfjuːt/

refute

refutar
Meaning
To prove a statement, argument, or theory to be false or invalid.
Example
The lawyer refuted the witness's testimony with solid evidence.
El abogado refutó el testimonio del testigo con pruebas sólidas.
C1 noun/verb kənˈdʒɛk.tʃər

conjecture

conjetura
Meaning
An opinion or conclusion formed on the basis of incomplete information; to form an opinion or supposition about something.
Example
The scientist's conjecture was later proven true.
La conjetura del científico fue luego comprobada como cierta.
C1 verb /vaɪ/

vie

competir
Meaning
To compete eagerly with someone in order to do or achieve something.
Example
Several companies are vying for the contract.
Varias empresas están compitiendo por el contrato.
C1 adjective /ɪnˈsɪdiəs/

insidious

insidioso
Meaning
Proceeding in a gradual, subtle way but with harmful effects.
Example
The insidious spread of misinformation can damage trust.
La propagación insidiosa de la desinformación puede dañar la confianza.