shackle
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C1 verb /ˈʃækəl/

shackle

esposar
Meaning
to chain or restrain; to restrict someone’s actions or freedom
Example
Outdated regulations shackle small businesses and slow innovation.
Las regulaciones anticuadas encadenan a las pequeñas empresas y ralentizan la innovación.
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 noun /ˌdɛməˈlɪʃən/

demolition

demolición
Meaning
the act or process of destroying a building or structure
Example
The demolition of the old factory took several weeks.
La demolición de la antigua fábrica tomó varias semanas.
C1 adjective /ɪˈlʌstriəs/

illustrious

ilustre
Meaning
Well known, respected, and admired for past achievements.
Example
She had an illustrious career in medicine.
Tuvo una carrera ilustre en la medicina.
C1 verb /bɪˈsiːdʒ/

besiege

sitio
Meaning
to surround a place with armed forces to capture it; to overwhelm with requests or attention
Example
The city was besieged by enemy troops.
La ciudad fue sitiada por tropas enemigas.
C1 adjective /snaɪd/

snide

irónico
Meaning
mocking or insulting in an indirect way
Example
He couldn’t resist making a snide comment about her dress.
No pudo evitar hacer un comentario irónico sobre su vestido.
C1 adjective/verb /ˈkɒn.sə.mət/

consummate

completar o perfeccionar algo con gran habilidad
Meaning
To complete or perfect something with great skill
Example
He is a consummate artist with years of experience.
Él es un artista consumado con años de experiencia.
C1 noun /ɪˈnɜː.ʃə/

Inertia

inercia; falta de actividad
Meaning
a tendency to do nothing or remain unchanged; lack of activity or movement
Example
The team's inertia prevented them from adapting to the rapidly changing market conditions.
La inercia del equipo les impidió adaptarse a las condiciones de mercado en rápido cambio.
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 /ˈproʊbeɪt/

probate

prueba testamentaria
Meaning
the official proving of a will in a court of law
Example
The family had to go through probate after his death.
La familia tuvo que pasar por el proceso de prueba testamentaria después de su muerte.
C1 adjective ɪˈroʊ.ni.əs

erroneous

erróneo, incorrecto
Meaning
Wrong; incorrect.
Example
His assumptions were completely erroneous.
Sus suposiciones eran completamente erróneas.
C1 adjective /ʌnˈʃeɪkən/

Unshaken

inquebrantable; firme
Meaning
not disturbed or affected; firm and steady; unwavering
Example
Her faith remained unshaken despite all the challenges.
Su fe permaneció inquebrantable a pesar de todos los desafíos.
C1 noun /ˈkɑːrdəməm/

Cardamom

cardamomo
Meaning
aromatic seeds from a plant in the ginger family, used as a spice
Example
The recipe calls for a pinch of ground cardamom.
La receta requiere un poco de cardamomo molido.
C1 verb /ˌkɒntrəˈviːn/

contravene

contravenir
Meaning
to go against or act in opposition to a law, rule, or agreement
Example
He contravened the safety regulations and was fined.
Él contravino las normas de seguridad y fue multado.
C1 adjective /bræʃ/

brash

atrevido
Meaning
self-assertive in a rude, noisy, or overconfident way
Example
His brash comments offended many people at the meeting.
Sus comentarios atrevidos ofendieron a muchas personas en la reunión.
C1 noun /ˌdez.ɪɡˈneɪ.ʃən/

Designation

designación; cargo; título; estatus oficial
Meaning
the action of choosing someone for a position; a name, title, or official status
Example
His designation as team leader came with additional responsibilities and authority.
Su designación como líder del equipo vino con responsabilidades adicionales y autoridad.
C1 verb /dɪˈstɪl/

distill

destilar
Meaning
To purify a liquid by heating and cooling; to extract the essential meaning or most important aspects.
Example
The factory distills water to make it safe for drinking.
La fábrica destila agua para hacerla segura para beber.
C1 noun /plaɪt/

Plight

dificultad; situación desafortunada
Meaning
a dangerous, difficult, or unfortunate situation
Example
The refugees were in a desperate plight.
Los refugiados estaban en una difícil situación.
C1 noun /ˈpriːsɪŋkt/

precinct

distrito
Meaning
A district or area within the boundaries of a city, often for police or electoral purposes.
Example
She went to vote at her local precinct.
Ella fue a votar en su distrito local.
C1 noun /ˈmɒdɪfaɪər/

modifier

modificador
Meaning
a word or element that changes, limits, or describes the meaning of another word; something that alters or adjusts
Example
In the phrase 'very cold', 'very' is a modifier of 'cold'.
En la frase «very cold», «very» es un modificador de «cold».
C1 verb /ˈtrɪkl̩/

trickle

gotear
Meaning
To flow or fall in a small, slow stream or drops.
Example
Water began to trickle down the wall after the heavy rain.
Después de la lluvia intensa, el agua comenzó a gotear por la pared.
C1 adjective /ˌmɪsəˈleɪniəs/

Miscellaneous

misceláneo; diverso; mezclado
Meaning
various; diverse; mixed; assorted
Example
The box contained miscellaneous items from different periods.
La caja contenía artículos diversos de diferentes períodos.
C1 noun, verb /məˈnuː.vər/

maneuver

maniobra / hábil
Meaning
a planned or skillful movement or action; to move skillfully or carefully
Example
The pilot maneuvered the plane through the storm.
El piloto maniobró el avión a través de la tormenta.
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 /ˈraʊ.di/

Rowdy

ruidoso; desordenado; alborotador
Meaning
disorderly; unruly; noisy and disruptive
Example
The rowdy children were making too much noise.
Los niños ruidosos estaban haciendo demasiado ruido.
C1 verb /skʌf/

scuff

rasguñar
Meaning
to mark or scratch the surface of something by rubbing
Example
He scuffed his shoes on the pavement.
Él rasguñó sus zapatos en la acera.
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 /ˌpæθəˈdʒɛnɪk/

pathogenic

patógeno
Meaning
Capable of causing disease.
Example
Some bacteria are harmless, while others are highly pathogenic.
Algunas bacterias son inofensivas, mientras que otras son altamente patógenas.
C1 verb /ˈrætɪfaɪ/

ratify

ratificar
Meaning
to approve or confirm something officially, usually by law or formal consent
Example
The government ratified the trade agreement.
El gobierno ratificó el acuerdo comercial.
C1 adjective lɪŋˈɡwɪs.tɪk

linguistic

lingüístico
Meaning
Related to language or linguistics; concerning the scientific study of language.
Example
The AI model learns from linguistic patterns.
El modelo de IA aprende de los patrones lingüísticos.
C1 adjective /ʌnˈkwes.tʃən.ə.bl̩/

Unquestionable

indiscutible; seguro
Meaning
not able to be disputed or doubted; certain and beyond doubt
Example
Her honesty and integrity are unquestionable qualities.
Su honestidad e integridad son cualidades indiscutibles.
C1 noun /ˈpɜːrpɪtreɪtər/

perpetrator

delincuente
Meaning
a person who commits a harmful, illegal, or immoral act
Example
The police arrested the perpetrator of the crime.
La policía arrestó al delincuente del crimen.
C1 noun /ˈtʃænsələr/

chancellor

canciller / rector
Meaning
A senior state or legal official, or the head of a university.
Example
The chancellor delivered an inspiring speech at the graduation ceremony.
El canciller pronunció un discurso inspirador en la ceremonia de graduación.
C1 adjective /ʌnˈkɛmpt/

unkempt

desordenado
Meaning
Having an untidy or disheveled appearance.
Example
He looked unkempt after sleeping outdoors all night.
Se veía desordenado después de dormir al aire libre toda la noche.
C1 noun /ˌmʌltɪˈplɪsɪti/

multiplicity

multiplicidad
Meaning
A large number or variety of something.
Example
The project faced a multiplicity of challenges.
El proyecto enfrentó una multiplicidad de desafíos.
C1 adjective /ɛnˌsaɪkləˈpiːdɪk/

encyclopedic

enciclopédico
Meaning
Having comprehensive knowledge of many subjects; relating to or characteristic of an encyclopedia.
Example
Her encyclopedic knowledge of history amazed everyone at the conference.
Su conocimiento enciclopédico de la historia sorprendió a todos en la conferencia.
C1 noun kɒɡˈnɪʃ.ən

cognition

cognición
Meaning
The mental action or process of acquiring knowledge and understanding through thought, experience, and the senses.
Example
Cognition plays a key role in learning.
La cognición juega un papel clave en el aprendizaje.
C1 adjective /dɪˈklærətɪv/

declarative

declarativo
Meaning
relating to a statement that declares something; in grammar, a sentence that makes a statement
Example
A declarative sentence simply states a fact or opinion.
Una oración declarativa simplemente establece un hecho u opinión.
C1 verb /praʊl/

prowl

merodear (para cazar o buscar)
Meaning
To move around quietly and secretly, especially while hunting or searching.
Example
The cat prowled around the garden at night.
La gata merodeó alrededor del jardín por la noche.
C1 noun delˈteɪɪk ˈlændskeɪp

deltaic landscape

paisaje deltaico
Meaning
A geographical area formed by sediment deposits at the mouth of a river, creating a triangular land formation.
Example
Bangladesh has a unique deltaic landscape.
Bangladesh tiene un paisaje deltaico único.
C1 adjective /ˈɡrʌdʒɪŋ/

grudging

renuente
Meaning
Reluctant or unwilling; given or allowed only with hesitation.
Example
She gave him a grudging smile after the argument.
Le dio una sonrisa renuente después de la discusión.
C1 noun ˌæp.əˈreɪ.təs

apparatus

aparato
Meaning
The technical equipment or machinery needed for a particular activity or purpose.
Example
The apparatus was designed to be eco-friendly.
El aparato fue diseñado para ser ecológico.
C1 noun /ˈiːɡoʊˌtɪzəm/

egotism

egotismo
Meaning
The practice of talking and thinking about oneself excessively because of an inflated sense of self-importance.
Example
His constant boasting revealed his egotism.
Su constante jactancia reveló su egotismo.
C1 verb ˌkəʊ.əˈles

coalesce

fusionarse
Meaning
Come together and form one mass or whole; unite to form one organization or group.
Example
The different theories coalesced into one unified idea.
Las diferentes teorías se fusionaron en una idea unificada.
C1 noun /noʊˈbɪl.ə.ti/

Nobility

nobleza; rango alto
Meaning
the quality of being noble in character; people of noble rank
Example
He showed great nobility in forgiving his enemies.
Él mostró gran nobleza al perdonar a sus enemigos.
C1 noun /ˌhaɪ.roʊˈɡlɪf.ɪks/

hieroglyphics

jeroglíficos
Meaning
a system of writing using pictures or symbols, used especially by ancient Egyptians
Example
The tomb walls were covered with Egyptian hieroglyphics.
Las paredes de la tumba estaban cubiertas con jeroglíficos egipcios.
C1 verb /ɪˈlæps/

elapse

transcurrir
Meaning
to pass or go by, usually referring to time
Example
Several hours elapsed before he finally returned home.
Pasaron varias horas antes de que él finalmente regresara a casa.
C1 noun ˈsæŋktɪti

sanctity

santidad
Meaning
The state or quality of being holy, sacred, or saintly; ultimate importance.
Example
The sanctity of life should never be compromised.
La santidad de la vida nunca debe ser comprometida.
C1 verb /ˈaɪdəlaɪz/

idolize

idolatrar
Meaning
To admire or worship someone excessively.
Example
Fans often idolize celebrities for their talent and lifestyle.
Los fanáticos a menudo idolizan a las celebridades por su talento y estilo de vida.
C1 noun/verb /rɪˈpriːz/

reprise

repetición
Meaning
A repetition or return to an earlier theme, role, or action.
Example
The actor reprised his role in the sequel.
El actor repitió su papel en la secuela.
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 noun /ˈtɪt.bɪt/

Titbit

un pequeño trozo de comida sabrosa; una pequeña pieza interesante de información
Meaning
a small piece of tasty food; a small interesting piece of information
Example
She served delicious titbits at the party.
Ella sirvió deliciosos bocaditos en la fiesta.
C1 adjective ˈsɒvrɪn

sovereign

soberano, supremo
Meaning
Possessing supreme or ultimate power; independent.
Example
The sovereign government has control over its currency.
El gobierno soberano tiene control sobre su moneda.
C1 noun /ɡɔːrd/

Gourd

calabaza
Meaning
a climbing plant with large fruits that have hard shells when dried
Example
The bottle gourd curry was delicious and nutritious.
El curry de calabaza en botella estaba delicioso y nutritivo.
C1 verb /ˈbəʊl.stər/

bolster

fortalecer
Meaning
To support or strengthen; to prop up.
Example
The new policy aims to bolster economic growth.
La nueva política tiene como objetivo reforzar el crecimiento económico.
C1 noun /ˈpɛnɪtəns/

penitence

penitencia
Meaning
The action or feeling of showing sorrow and regret for having done wrong.
Example
His eyes were full of penitence after realizing his mistake.
Sus ojos estaban llenos de penitencia después de darse cuenta de su error.
C1 adjective ˈɪn.lənd

Inland

del interior
Meaning
Situated in the interior of a country; away from the coast.
Example
Inland transport boosts local trade.
El transporte del interior impulsa el comercio local.
C1 verb /ˈprɒfər/

proffer

ofrecer, presentar
Meaning
to offer something for acceptance; to present
Example
She proffered her hand as a sign of friendship.
Ella ofreció su mano como señal de amistad.
C1 verb /ɪnˈvælɪdeɪt/

invalidate

invalidar
Meaning
To make something not valid or legally acceptable.
Example
The new evidence may invalidate the previous ruling.
La nueva evidencia puede invalidar el fallo anterior.
C1 adjective /ˈpɛtjʊlənt/

petulant

irritable
Meaning
Childishly sulky or bad-tempered.
Example
The child became petulant when denied more candy.
El niño se volvió irritable cuando no le dieron más dulces.
C1 adjective /ˈɡlɛrɪŋ/

glaring

intenso / obvio
Meaning
Extremely obvious or shining intensely.
Example
There was a glaring mistake in the report.
Hubo un error obvio en el informe.
C1 noun /ɡruːv/

groove

hendidura / ritmo
Meaning
a long narrow cut or depression, or a rhythmic pattern in music
Example
The DJ kept the crowd dancing to the groove.
El DJ mantuvo a la multitud bailando al ritmo.
C1 verb/noun /ˈrɛlɪʃ/

relish

disfrutar / condimento
Meaning
to greatly enjoy; also a condiment or sauce
Example
She relished the opportunity to travel abroad.
Ella disfrutó mucho de la oportunidad de viajar al extranjero.
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 /kəʊˈhiːʒən/

cohesion

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

denunciation

denuncia / acusación pública
Meaning
the public condemnation or accusation of someone or something
Example
The journalist's article was a strong denunciation of corruption.
El artículo del periodista fue una fuerte denuncia de la corrupción.
C1 verb /ˈeɪ.li.ə.neɪt/

alienate

alienar
Meaning
To make someone feel isolated or estranged; to cause someone to become unfriendly.
Example
His rude behavior alienated many of his friends.
Su comportamiento grosero alienó a muchos de sus amigos.
C1 noun /aɪˈtɪnərɛri/

itinerary

itinerario
Meaning
A planned route or schedule of a journey or trip.
Example
The travel agent gave us a detailed itinerary for our vacation.
El agente de viajes nos dio un itinerario detallado para nuestras vacaciones.
C1 noun /ræmˈbuːtən/

Rambutan

rambután
Meaning
a tropical fruit with red spiky skin and white translucent sweet flesh similar to litchi
Example
The rambutan looks scary with its hairy skin but tastes very sweet inside.
El rambutan se ve aterrador con su piel peluda, pero tiene un sabor muy dulce por dentro.
C1 adverb /ˌhɛdˈfɜrst/

headfirst

cabeza adelante
Meaning
With the head leading; in a reckless or hasty manner.
Example
He dived headfirst into the pool.
Se zambulló cabeza primero en la piscina.
C1 noun /ænˈtɪθəsɪs/

antithesis

antítesis
Meaning
A person, thing, or idea that is the direct opposite of another; a rhetorical device contrasting opposing ideas in parallel structure.
Example
Love is the antithesis of hate.
El amor es la antítesis del odio.
C1 noun kəˈmjuːnɪti ˈsɜːrvɪs aɪˈdiːəlz

community service ideals

ideales de servicio comunitario
Meaning
Principles and standards of serving the community for social good.
Example
Community service ideals must be taught in schools.
Los ideales de servicio comunitario deben enseñarse en las escuelas.
C1 adjective /ˌɪn.səˈbɔːr.dɪ.nət/

insubordinate

insubordinado
Meaning
Defiant of authority; disobedient to orders.
Example
The insubordinate employee refused to follow the manager's instructions.
El empleado insubordinado se negó a seguir las instrucciones del gerente.
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 /ˈwaɪ.li/

Wily

astuto; astuto; engañoso
Meaning
clever; cunning; sly
Example
The wily fox escaped from the trap using his cunning intelligence.
El zorro astuto escapó de la trampa utilizando su inteligencia astuta.
C1 noun ˌpɒlɪˈneɪʃən

Pollination

polinización
Meaning
The process by which pollen is transferred from flowers, enabling plant reproduction.
Example
Butterflies play a vital role in pollination.
Las mariposas juegan un papel vital en la polinización.
C1 noun /ˈmɒn.ɑːk/

Monarch

monarca
Meaning
a sovereign ruler, especially a king or queen
Example
The monarch addressed the nation on television.
El monarca dirigió la nación en la televisión.
C1 adjective /bɪˈrɛft/

bereft

despojado
Meaning
Deprived of or lacking something, especially a nonmaterial asset.
Example
After the betrayal, he felt bereft of hope and trust.
Después de la traición, se sintió despojado de esperanza y confianza.
C1 verb /ˈdʒʌk.stə.poʊz/

juxtapose

colocar dos cosas diferentes cerca una de la otra
Meaning
To place two different things close together to show how they are different or similar.
Example
The artist juxtaposed traditional and modern elements in his painting.
El artista colocó elementos tradicionales y modernos en su pintura.
C1 noun /ɪnˈɛk.wɪ.ti/

inequity

inequidad
Meaning
Lack of fairness or justice; unequal distribution or treatment.
Example
Social inequity continues to be a global issue.
La inequidad social sigue siendo un problema global.
C1 adjective /ˈdʒɑː.rɪŋ/

jarring

desagradable, impactante
Meaning
Striking or shocking in a way that creates a strong contrast or clash.
Example
The sudden loud noise was jarring to everyone in the room.
El ruido fuerte y repentino fue impactante para todos en la sala.
C1 adjective /əbˈstrʌk.tɪv/

Obstructive

obstructivo
Meaning
deliberately creating difficulties or preventing progress; hindering or blocking something
Example
The obstructive policies hindered economic growth.
Las políticas obstructivas obstaculizaron el crecimiento económico.
C1 verb /kənˈsaɪn/

consign

consignar
Meaning
to deliver something to a person or place, often for selling or safekeeping
Example
He consigned the package to the shipping company.
Él consignó el paquete a la compañía de envíos.
C1 adjective /dɪsˈsɪmɪlər/

dissimilar

diferente
Meaning
Not alike; different.
Example
Though they are twins, their personalities are dissimilar.
Aunque son gemelos, sus personalidades son diferentes.
C1 verb /fɔːrˈʃædoʊ/

foreshadow

presagiar
Meaning
To indicate or suggest something that will happen in the future
Example
Dark clouds foreshadowed an approaching storm.
Las nubes oscuras presagiaron una tormenta inminente.
C1 adjective /rɪˈtɔːrɪkəl/

rhetorical

retórico
Meaning
relating to the art of effective or persuasive speaking or writing; often a question asked to make a point rather than get an answer
Example
He asked a rhetorical question during the debate.
Hizo una pregunta retórica durante el debate.
C1 noun /əˈkɔːrdiən/

accordion

acordión (instrumento musical)
Meaning
a musical instrument played by squeezing and expanding with keys and buttons
Example
The musician played a cheerful tune on the accordion.
El músico tocó una melodía alegre en el acordeón.
C1 noun /ʌnˈfeɪθfʊlnəs/

unfaithfulness

infidelidad
Meaning
the quality of being disloyal or not faithful; breach of trust or fidelity
Example
His unfaithfulness led to the end of their marriage.
Su infidelidad llevó al fin de su matrimonio.
C1 adjective /təˈrɛstriəl/

terrestrial

terrestre
Meaning
Relating to the Earth or land as opposed to the sea or air; living or growing on land.
Example
Humans are terrestrial beings who live on land.
Los humanos son seres terrestres que viven en la tierra.
C1 adjective /ˈdrɪəri/

dreary

triste / sombrío
Meaning
dull, bleak, and lifeless; depressing
Example
The long, dreary winter made everyone feel gloomy.
El largo y sombrío invierno hizo que todos se sintieran tristes.
C1 adjective dʒuːˈdɪʃ.əs

judicious

juicioso
Meaning
Having, showing, or done with good judgment or sense; wise and careful.
Example
A judicious decision can prevent future problems.
Una decisión juiciosa puede prevenir problemas futuros.
C1 noun /ˌpiːdiˈætrɪks/

pediatrics

pediatría
Meaning
the branch of medicine dealing with the health and medical care of children
Example
She decided to specialize in pediatrics after medical school.
Decidió especializarse en pediatría después de la escuela de medicina.
C1 adjective /kənˈdjuː.sɪv/

conducive

propicio
Meaning
Making a certain situation or outcome likely or possible; contributing to or helping to bring about.
Example
A quiet environment is conducive to studying.
Un ambiente tranquilo es propicio para estudiar.
C1 noun ˌmɒdɪfɪˈkeɪʃn

modification

modificación
Meaning
The action of making changes to something.
Example
The plan required modification.
El plan requirió modificación.
C1 verb/noun /pərˈvɜːrt/

pervert

pervertir / persona pervertida
Meaning
As a verb: to distort the meaning or purpose of something; as a noun: a person with abnormal or immoral sexual behavior.
Example
He tried to pervert the truth to escape punishment.
Él trató de pervertir la verdad para escapar del castigo.
C1 verb /ˈræŋɡl̩/

wrangle

discutir
Meaning
to argue or dispute noisily or angrily
Example
The two neighbors wrangled over the property line for hours.
Los dos vecinos discutieron durante horas sobre la línea de propiedad.
C1 adjective /stɔːntʃ/

staunch

firme, leal
Meaning
Loyal, committed, and firm in support.
Example
She is a staunch supporter of environmental protection.
Ella es una firme defensora de la protección del medio ambiente.
C1 adjective /ˌʌnəˈfɛktɪd/

unaffected

inafectado, genuino
Meaning
Not influenced or touched by something; genuine and natural.
Example
He remained unaffected by the criticism and kept working hard.
Él permaneció sin verse afectado por la crítica y siguió trabajando duro.
C1 verb /kənˈfaʊnd/

confound

desconcertar
Meaning
to confuse or surprise someone, often by acting against their expectations
Example
The magician's trick seemed to confound the entire audience.
El truco del mago parecía desconcertar a toda la audiencia.
C1 verb /ˈteɪpər/

taper

afinar
Meaning
To gradually decrease in width, thickness, or intensity.
Example
The road tapers off as it reaches the mountains.
La carretera se estrecha a medida que llega a las montañas.
C1 exclamation /juˈriːkə/

eureka

¡Eureka!
Meaning
An exclamation used to express a sudden discovery or realization.
Example
When the solution finally came to him, he shouted, 'Eureka!'
Cuando finalmente encontró la solución, gritó, '¡Eureka!'
C1 adjective ˈkwɒn.tɪ.faɪ.ə.bəl

quantifiable

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

nonchalance

despreocupación
Meaning
A relaxed and calm state, showing lack of concern or interest.
Example
She answered the tough questions with surprising nonchalance.
Ella respondió las preguntas difíciles con sorprendente despreocupación.
C1 noun /ˈwɔː.tər hen/

Water hen

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

plaintive

triste, lamentoso
Meaning
expressing sadness or sorrow
Example
He raised a plaintive cry for help.
Él levantó un grito lamentoso pidiendo ayuda.
C1 adjective ɪˌlektrəʊmæɡˈnetɪk

electromagnetic

electromagnético
Meaning
Relating to both electricity and magnetism or their interaction.
Example
Electromagnetic forces repel protons.
Las fuerzas electromagnéticas repelen los protones.
C1 noun

Kin

familia; parientes;
C1 adjective /ˈhæɡ.ərd/

Haggard

parecer exhausto y enfermo, especialmente por fatiga, preocupación o sufrimiento
Meaning
looking exhausted and unwell, especially from fatigue, worry, or suffering
Example
After working three nights without sleep, he looked haggard.
Después de trabajar tres noches sin dormir, se veía agotado.
C1 verb /ˈbɪkər/

bicker

discutir por cosas triviales
Meaning
To argue or quarrel about trivial matters.
Example
The children began to bicker over the last piece of cake.
Los niños comenzaron a discutir por el último pedazo de pastel.
C1 verb /pəˈveɪd/

pervade

permeabilizar
Meaning
to spread through and be present in every part of something
Example
The smell of fresh flowers pervaded the entire room.
El aroma de las flores frescas permeó toda la habitación.
C1 verb /ɪɡˈnaɪt/

ignite

encender
Meaning
To catch fire or cause to catch fire; to start or arouse.
Example
The sparks ignited the dry leaves in seconds.
Las chispas encendieron las hojas secas en segundos.
C1 noun /ˌmiːtiəˈrɒlədʒi/

meteorology

meteorología
Meaning
The scientific study of the atmosphere and weather.
Example
He chose to specialize in meteorology to study weather patterns.
Eligió especializarse en meteorología para estudiar los patrones climáticos.
C1 noun /njʊəˈrəʊ.sɪs/

neurosis

trastorno neurótico
Meaning
A relatively mild mental illness that is not caused by organic disease, involving symptoms of stress.
Example
His neurosis made social interactions difficult.
Su neurosis hizo que las interacciones sociales fueran difíciles.
C1 noun /ˈrep.lɪ.kə/

Replica

réplica
Meaning
an exact copy or model of something, especially one on a smaller scale
Example
The museum displayed a perfect replica of the ancient statue.
El museo exhibió una réplica perfecta de la estatua antigua.
C1 noun /ˈnjuːɑːns/

nuance

matiz
Meaning
A subtle difference in shade of meaning, appearance, or sound.
Example
He noticed the subtle nuance in her expression.
Notó el sutil matiz en su expresión.
C1 adjective /ɪˈnɛpt/

inept

inepto
Meaning
lacking skill or ability; clumsy or incompetent
Example
His inept handling of the situation made it worse.
Su manejo inepto de la situación lo empeoró.
C1 verb ˌæs.ɚˈteɪn

ascertain

verificar
Meaning
To find out or discover something with certainty; to verify.
Example
The police tried to ascertain the cause of the accident.
La policía intentó verificar la causa del accidente.
C1 noun /ˈɑd.ɪ.ti/

Oddity

rareza
Meaning
something that is strange or unusual; a peculiar trait
Example
His habit of sleeping standing up was considered an oddity.
Su hábito de dormir de pie se consideraba una rareza.
C1 adjective /ˌniːoʊˈlɪθɪk/

neolithic

neolítico
Meaning
Relating to the later part of the Stone Age, when ground or polished stone weapons and tools prevailed.
Example
Neolithic communities began practicing agriculture and domesticating animals.
Las comunidades neolíticas comenzaron a practicar la agricultura y a domesticar animales.
C1 noun /ˈiː.dən/

Eden

Edén
Meaning
a place or state of great happiness; paradise
Example
The garden was like Eden, filled with beautiful flowers and peaceful atmosphere.
El jardín era como el Edén, lleno de hermosas flores y una atmósfera tranquila.
C1 adjective /ɪˈræʃənəl/

irrational

irracional
Meaning
not logical or reasonable; lacking clear thought
Example
His fear of the dark was completely irrational.
Su miedo a la oscuridad era completamente irracional.