annul
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C1 verb /əˈnʌl/

annul

anular
Meaning
to declare something legally invalid or cancel it
Example
The court decided to annul the marriage due to fraud.
El tribunal decidió anular el matrimonio debido al fraude.
C1 noun /əˈboʊd/

abode

morada
Meaning
a place of residence; a home
Example
They invited us to their humble abode.
Nos invitaron a su humilde morada.
C1 noun /əˈnɒməli/

anomaly

anomalía
Meaning
something that deviates from the norm or expected result
Example
The sudden drop in temperature was considered an anomaly.
La caída repentina de la temperatura fue considerada una anomalía.
C1 adjective /əˈnæl.ə.ɡəs/

analogous

análogo
Meaning
Comparable in certain respects, typically in a way that makes clearer the nature of things being compared.
Example
The human brain is analogous to a supercomputer.
El cerebro humano es análogo a una supercomputadora.
C1 adjective /ˌæprɪˈhɛnsɪv/

apprehensive

ansioso
Meaning
feeling anxious or fearful that something bad will happen
Example
He was apprehensive about starting a new job in a foreign country.
Estaba ansioso por comenzar un nuevo trabajo en un país extranjero.
C1 noun əˈpreɪ.zəl

appraisal

evaluación
Meaning
An assessment or evaluation of performance or quality.
Example
The annual appraisal determines salary increments.
La evaluación anual determina los incrementos salariales.
C1 noun /ˈæmpɛər/

ampere

ámper
Meaning
A unit of electric current in the International System of Units (SI), symbolized as A.
Example
The current flowing through the wire is measured in amperes.
La corriente que fluye a través del cable se mide en amperios.
C1 noun /ˈeɪθiɪzəm/

atheism

ateísmo
Meaning
The belief that there is no God or gods.
Example
He declared his atheism openly despite social pressure.
Él declaró su ateísmo abiertamente a pesar de la presión social.
C1 verb /əˈlʊər/

allure

atraer
Meaning
to attract or tempt someone with something desirable; to entice
Example
The beautiful garden allured visitors from far away.
El hermoso jardín atrajo a los visitantes desde lejos.
C1 noun /əˈsæsɪn/

Assassin

asesino
Meaning
a person who murders an important person for political or religious reasons
Example
The president was protected from potential assassins by security guards.
El presidente fue protegido de los posibles asesinos por los guardias de seguridad.
C1 noun /ˈæd.və.ser.i/

adversary

adversario
Meaning
One's opponent in a contest, conflict, or dispute.
Example
The boxer faced a strong adversary in the ring.
El boxeador enfrentó a un fuerte adversario en el ring.
C1 verb /ˈæn.ə.teɪt/

annotate

añadir notas o comentarios
Meaning
to add notes or comments to a text, diagram, or document for explanation or clarification
Example
The teacher asked the students to annotate the poem with their interpretations.
El maestro pidió a los estudiantes que anotaran el poema con sus interpretaciones.
C1 noun /əˈsem.bli ˈseʃ.ən/

assembly session

sesión de asamblea
Meaning
A formal meeting where representatives gather to discuss and make decisions on important matters.
Example
The assembly session discussed global challenges.
La sesión de asamblea discutió los desafíos globales.
C1 noun /ˌænəlˈdʒiːzɪk/

analgesic

analgésico
Meaning
A drug or substance that relieves pain.
Example
She took an analgesic to ease her headache.
Ella tomó un analgésico para aliviar su dolor de cabeza.
C1 noun /ˈælɪbaɪ/

alibi

coartada
Meaning
A claim or piece of evidence that one was elsewhere when an act, typically a crime, was committed.
Example
She had a strong alibi that proved she was at the cinema during the theft.
Ella tenía una coartada sólida que demostró que estaba en el cine durante el robo.
C1 adjective /ˈæntɪkweɪtɪd/

antiquated

anticuado
Meaning
Old-fashioned or outdated.
Example
The office still uses an antiquated filing system.
La oficina todavía usa un sistema de archivos anticuado.
C1 adjective /əˈluːf/

aloof

distante
Meaning
Not friendly or forthcoming; cool and distant.
Example
He remained aloof during the entire discussion.
Él permaneció distante durante toda la discusión.
C1 adjective /ˈɑːrɡjuəbl/

arguable

discutible
Meaning
open to debate or discussion; not certain and capable of being argued for or against
Example
It is arguable that technology has improved our quality of life.
Es discutible que la tecnología haya mejorado nuestra calidad de vida.
C1 adjective /ˈɑːr.dənt/

Ardent

ardiente; entusiasta; fervoroso
Meaning
very enthusiastic; passionate; fervent
Example
She is an ardent supporter of environmental conservation.
Ella es una ferviente defensora de la conservación ambiental.
C1 noun ænˈtɪk.wə.ti

antiquity

antigüedad
Meaning
The ancient past, especially the period of classical and other human civilizations before the Middle Ages.
Example
The ruins are a reminder of the city's antiquity.
Las ruinas son un recordatorio de la antigüedad de la ciudad.
C1 adjective ˈeɪlɪəneɪtɪd

alienated

alienado
Meaning
Feeling isolated or estranged; disconnected from others or society.
Example
Alienated students are more prone to delinquency.
Los estudiantes alienados son más propensos a la delincuencia.
C1 noun /ˈænəɡræm/

anagram

una palabra o frase formada reordenando las letras de otra palabra o frase.
Meaning
A word or phrase formed by rearranging the letters of another word or phrase.
Example
The word 'listen' is an anagram of 'silent'.
La palabra 'listen' es un anagrama de 'silent'.
C1 noun /əˈsɛsər/

assessor

evaluador
Meaning
a person who evaluates or estimates the nature, ability, or quality of something
Example
An external assessor reviewed the project report.
Un evaluador externo revisó el informe del proyecto.
C1 noun/verb /ˈætrəfi/

atrophy

atrofia
Meaning
a decrease in size or wasting away of a body part, tissue, or ability due to lack of use
Example
Without regular exercise, muscles may atrophy over time.
Sin ejercicio regular, los músculos pueden atrofiarse con el tiempo.
C1 adjective /ˌæl.ɡəˈrɪð.mɪk/

algorithmic

basado en algoritmos
Meaning
Based on or using algorithms; relating to mathematical rules or procedures.
Example
Algorithmic processes power artificial intelligence systems.
Los procesos algorítmicos impulsan los sistemas de inteligencia artificial.
C1 noun /ˈɑːrmfʊl/

armful

brazo lleno
Meaning
As much as can be carried in one or both arms.
Example
She carried an armful of books into the library.
Ella llevó un brazo lleno de libros a la biblioteca.
C1 noun /ˈælkoʊv/

alcove

rinconcito
Meaning
A small recessed section of a room or a nook.
Example
She placed a reading chair in the alcove near the window.
Ella colocó una silla de lectura en el rincón cerca de la ventana.
C1 noun ˈæf.lu.əns

affluence

afluencia
Meaning
The state of having a great deal of money; wealth.
Example
His affluence allowed him to travel the world.
Su afluencia le permitió viajar por el mundo.
C1 noun əˌkred.ɪˈteɪ.ʃən

accreditation

acreditación
Meaning
The action or process of officially recognizing someone or something as having a particular status or being qualified to perform a particular activity.
Example
Accreditation ensures institutional credibility.
La acreditación asegura la credibilidad institucional.
C1 adjective əsˈtjuːt

astute

astuto o sagaz
Meaning
Having or showing an ability to accurately assess situations or people and turn this to one's advantage.
Example
His astute observations helped solve the complex problem.
Sus observaciones astutas ayudaron a resolver el problema complejo.
C1 adjective, noun /ɔːɡˈzɪliəri/

auxiliary

auxiliar
Meaning
(adjective) providing supplementary or additional help and support; (noun) a person or thing that provides auxiliary support
Example
The hospital has an auxiliary power generator in case of emergencies.
El hospital tiene un generador de energía auxiliar en caso de emergencias.
C1 noun /ˈɑːrdər/

ardor

pasión, entusiasmo
Meaning
Great enthusiasm or passion.
Example
She spoke with ardor about her new project.
Ella habló con ardor sobre su nuevo proyecto.
C1 adjective /əˈdɛpt/

adept

hábil
Meaning
Very skilled or proficient at something.
Example
She is adept at solving complex mathematical problems.
Ella es hábil para resolver problemas matemáticos complejos.
C1 adjective /əˈpriː.ʃə.bəl/

Appreciable

apreciable; significativo; considerable en cantidad
Meaning
noticeable; significant; considerable in amount
Example
There was an appreciable improvement in his test scores.
Hubo una mejora apreciable en sus puntuaciones de prueba.
C1 adverb /əˈbrɛst/

abreast

lado a lado
Meaning
side by side and facing the same direction; informed about something
Example
The soldiers marched two abreast down the street.
Los soldados marcharon dos lado a lado por la calle.
C1 noun ˌæɡ.rəʊˈkem.ɪ.kəl

agrochemical

agroquímico
Meaning
A chemical product used in agriculture, especially a pesticide or fertilizer.
Example
Excessive use of agrochemicals can degrade soil quality.
El uso excesivo de agroquímicos puede degradar la calidad del suelo.
C1 adjective /æmˈfɪb.i.əs/

Amphibious

anfibio
Meaning
able to live both on land and in water; suitable for both land and water operations
Example
The amphibious vehicle can travel on both land and water.
El vehículo anfibio puede viajar tanto en tierra como en agua.
C1 noun ˌæf.ɔːr.ɪˈsteɪ.ʃən

afforestation

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

amiss

equivocado
Meaning
Not quite right; inappropriate or out of place.
Example
Something seems amiss with the car's engine.
Parece haber algo equivocado con el motor del coche.
C1 noun /ænˈθɒlədʒi/

anthology

antología
Meaning
A collection of literary works, such as poems, short stories, or essays, compiled into one volume.
Example
She contributed a poem to the new poetry anthology.
Ella contribuyó con un poema a la nueva antología de poesía.
C1 verb ɔːɡˈmɛntɪŋ

augmenting

aumentar
Meaning
Increasing; making something greater in size, number, or degree
Example
Life expectancy is augmenting with advancements in healthcare.
La esperanza de vida está aumentando con los avances en la atención sanitaria.
C1 adjective /ˌeɪsɪˈmɛtrɪk/

asymmetric

asimétrico
Meaning
Not having equal or corresponding parts; lacking symmetry.
Example
The design of the building is asymmetric and unusual.
El diseño del edificio es asimétrico y poco común.
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 verb əˈkruː

accrue

acumular
Meaning
To accumulate or receive (payments or benefits) over time.
Example
Interest accrues on the savings account every month.
Los intereses se acumulan en la cuenta de ahorros cada mes.
C1 noun /ˈævətɑːr/

avatar

avatar
Meaning
an icon or figure representing a person in digital contexts; in Hinduism, a divine incarnation
Example
She changed her social media avatar to a new cartoon image.
Ella cambió su avatar en las redes sociales por una nueva imagen de dibujo animado.
C1 adjective /əˈlʊr.ɪŋ/

Alluring

atractivo y tentador; fascinante
Meaning
attractive and tempting; fascinating
Example
The alluring fragrance of roses filled the garden.
La fragancia atractiva de las rosas llenó el jardín.
C1 noun /ˌæfəˈdeɪvɪt/

affidavit

declaración jurada
Meaning
a written statement confirmed by oath or affirmation, used as evidence in court
Example
The witness submitted an affidavit to the court.
El testigo presentó un affidavit ante el tribunal.
C1 verb /əˈbriːvieɪt/

abbreviate

abreviar
Meaning
To shorten a word, phrase, or text by leaving out letters or parts.
Example
We often abbreviate 'Doctor' to 'Dr'.
A menudo abreviamos 'Doctor' a 'Dr'.
C1 noun æmˈbɪvələns

ambivalence

ambivalencia
Meaning
Having mixed feelings or contradictory ideas about something; uncertainty or confusion.
Example
She felt ambivalence about taking the job offer.
Ella sintió ambivalencia al aceptar la oferta de trabajo.
C1 noun /ɑːˌtɪkjʊˈleɪʃən/

articulation

expresión
Meaning
The action of putting into words an idea or feeling of a specified type.
Example
His articulation during the debate impressed everyone.
Su articulación durante el debate impresionó a todos.
C1 noun /ˌæmplɪfɪˈkeɪʃən/

amplification

amplificación
Meaning
the act or process of making something stronger, louder, or more intense; an expansion or elaboration of details
Example
The microphone provides amplification of the speaker’s voice.
El micrófono proporciona amplificación de la voz del orador.
C1 noun /əˈsɛnʃən/

ascension

ascensión
Meaning
The act of rising or going up, often to an important position or a higher place.
Example
His rapid ascension in the company surprised everyone.
Su rápida ascensión en la empresa sorprendió a todos.
C1 noun /ɔːˈtɒmətən/

automaton

máquina automática
Meaning
A machine that works automatically; also refers to a person who behaves like a machine, without thinking.
Example
He worked like an automaton, without showing any emotion.
Él trabajaba como un autómata, sin mostrar ninguna emoción.
C1 verb /əˈfɪks/

affix

adjuntar / pegar
Meaning
to attach or stick something firmly to another thing
Example
Please affix the stamp to the envelope.
Por favor, adjunte el sello al sobre.
C1 verb /əˈmæs/

amass

acumular
Meaning
to gather together or accumulate over a period of time
Example
He managed to amass a fortune through wise investments.
Logró acumular una fortuna a través de inversiones sabias.
C1 noun /ˈɑːrməri/

armory

arsenal
Meaning
A place where weapons are stored; a supply of resources or skills.
Example
The soldiers kept their weapons in the armory.
Los soldados guardaron sus armas en el arsenal.
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.
C1 noun, adjective /ˌæntiˈsɛptɪk/

antiseptic

antiséptico
Meaning
A substance that prevents the growth of disease-causing microorganisms; clean and free from germs.
Example
The nurse applied an antiseptic to the wound.
La enfermera aplicó un antiséptico a la herida.
C1 adjective /ˈɔːdəˌtɔːri/

auditory

auditivo
Meaning
Relating to the sense of hearing.
Example
The lecture was designed to enhance students' auditory learning skills.
La conferencia fue disenada para mejorar las habilidades de aprendizaje auditivo de los estudiantes.
C1 adjective /ˌeɪ.bəlˈbɒd.id/

able-bodied

físicamente apto
Meaning
physically strong and healthy, not disabled
Example
The company is looking for able-bodied workers for the construction site.
La empresa está buscando trabajadores físicamente aptos para el sitio de construcción.
C1 verb /əˈbaʊnd/

abound

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

adjudicate

adjudicar
Meaning
to make a formal judgment or decision about a problem or dispute
Example
The committee was formed to adjudicate disputes between the parties.
Se formó un comité para adjudicar disputas entre las partes.
C1 adjective /əˈmiːnəbl/

amenable

dispuesto
Meaning
willing to cooperate or be influenced; open to suggestions
Example
She was amenable to the idea of working longer hours.
Ella estaba dispuesta a la idea de trabajar más horas.
C1 verb /əˈtjuːn/

attune

sintonizar
Meaning
to make someone or something aware of or responsive to something; to adjust or harmonize
Example
She quickly attuned herself to the needs of her new team.
Ella se sintonizó rápidamente con las necesidades de su nuevo equipo.
C1 adjective /ˈæŋ.ɡjə.lər/

Angular

angular
Meaning
having sharp corners or edges; relating to angles
Example
The building has an angular design with sharp corners.
El edificio tiene un diseño angular con esquinas afiladas.
C1 adjective /əˈvɜːrs/

averse

reacio
Meaning
having a strong dislike of or opposition to something
Example
He was averse to taking unnecessary risks.
Él estaba reacio a tomar riesgos innecesarios.
C1 adjective /əˈfɜːrmətɪv/

affirmative

afirmativo
Meaning
expressing agreement, approval, or a positive response
Example
She gave an affirmative answer to the proposal.
Ella dio una respuesta afirmativa a la propuesta.
C1 adjective /əˈkɪn/

akin

similar
Meaning
Of similar character or related by blood.
Example
His reaction was akin to shock.
Su reacción fue similar a un shock.
C1 noun ˌɔːɡ.menˈteɪ.ʃən

augmentation

aumento o expansión
Meaning
Increasing quantity, power or performance.
Example
The company invested in the augmentation of its workforce.
La empresa invirtió en la augmentación de su fuerza laboral.
C1 noun /ˈænti ˈeəkræft ɡʌn/

Anti-aircraft-gun

cañón antiaéreo
Meaning
a weapon designed to attack aircraft from the ground
Example
The anti-aircraft gun was positioned to defend the military base.
El cañón antiaéreo estaba posicionado para defender la base militar.
C1 verb /ˌæprɪˈhɛnd/

apprehend

detener
Meaning
to arrest or seize someone; to understand or perceive something
Example
The police managed to apprehend the thief after a long chase.
La policía logró apresar al ladrón después de una larga persecución.
C1 verb /əˈfɪliˌeɪt/

affiliate

afiliar
Meaning
to officially attach or connect (a group or organization) to a larger body
Example
The school is affiliated with the local university.
La escuela está afiliada a la universidad local.
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 preposition /əˈtɒp/

atop

encima
Meaning
on the top of something
Example
A flag was placed atop the tower.
Una bandera fue colocada encima de la torre.
C1 noun /ˈeɪ.kər.ɪdʒ/

acreage

hectárea
Meaning
An area of land measured in acres.
Example
The farmer owns a large acreage of fertile land.
El agricultor posee una gran hectárea de tierra fértil.
C1 adjective /ˌeɪˈtɪpɪkəl/

atypical

atípico
Meaning
not representative of a type, group, or class; unusual or abnormal
Example
The doctor said it was an atypical case of the disease.
El doctor dijo que era un caso atípico de la enfermedad.
C1 noun /əˈbreɪʒən/

abrasion

raspadura o desgaste de la piel o superficie debido a la fricción
Meaning
a scrape or wearing away of the skin or surface due to friction
Example
He suffered a minor abrasion on his knee after falling.
Él sufrió una pequeña raspadura en su rodilla después de caerse.
C1 verb /ˈæk.lɪ.meɪt/

acclimate

aclimatarse
Meaning
To adapt or become accustomed to a new environment or situation
Example
It takes time to acclimate to a new climate.
Se necesita tiempo para aclimatarse a un nuevo clima.
C1 noun /ˌæn.ɪˈmɒs.ə.ti/

Animosity

animosidad; hostilidad
Meaning
strong hostility or dislike; active hatred or ill will
Example
There was clear animosity between the two rival teams.
Había una clara animosidad entre los dos equipos rivales.
C1 noun /əˈkwɪtl/

acquittal

absolucion
Meaning
a judgment that a person is not guilty of the crime with which they have been charged
Example
The acquittal of the accused shocked the public.
La absolucion del acusado sorprendio al publico.
C1 adjective /ˌæl.truˈɪs.tɪk/

altruistic

altruista
Meaning
Showing a disinterested and selfless concern for the well-being of others.
Example
Her altruistic nature led her to volunteer for charities.
Su naturaleza altruista la llevó a ser voluntaria para organizaciones benéficas.
C1 verb /əˈbɔːrt/

abort

abortar; cancelar
Meaning
to stop a process or action before it is completed; to end a pregnancy deliberately
Example
The pilot decided to abort the mission due to bad weather.
El piloto decidió abortar la misión por el mal tiempo.
C1 verb /əˈtoʊn/

atone

expiar
Meaning
to make amends for a wrong or injury; to make reparation
Example
He tried to atone for his mistakes by helping others.
Él intentó expiar sus errores ayudando a los demás.
C1 noun /ˈæpərtʃər/

aperture

abertura / agujero
Meaning
an opening, hole, or gap, especially one that lets in light
Example
Light entered through the small aperture in the wall.
La luz entró a través de la pequeña abertura en la pared.
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 verb /ˈæn.ɛks/

annex

anexar
Meaning
To take control of a territory and add it to one's own.
Example
The empire annexed the neighboring kingdom after the war.
El imperio anexó el reino vecino después de la guerra.
C1 noun /əˈsɛndənsi/

ascendancy

ascendencia, dominio
Meaning
A position of power, influence, or control over others.
Example
The company gained ascendancy in the market through innovation.
La empresa logró ascendencia en el mercado a través de la innovación.
C1 verb /əˈflɪkt/

afflict

afligir
Meaning
to cause pain, suffering, or distress to someone or something
Example
Many people are afflicted by seasonal allergies.
Muchas personas están afligidas por alergias estacionales.
C1 noun ˈæltruɪzəm

altruism

altruismo, preocupación desinteresada por el bienestar de los demás
Meaning
The belief in or practice of disinterested and selfless concern for the well-being of others.
Example
His altruism motivated others to volunteer.
Su altruismo motivó a otros a ofrecerse como voluntarios.
C1 noun /əˈfɪn.ɪ.ti/

affinity

afinidad
Meaning
A natural liking for or attraction to a person, thing, idea, etc.
Example
She has an affinity for classical music.
Ella tiene una afinidad por la música clásica.
C1 adjective ˈɑː.dʒu.əs

arduous

arduo
Meaning
Involving or requiring strenuous effort; difficult and tiring.
Example
The trek through the mountains was an arduous journey.
La caminata por las montañas fue un viaje arduo.
C1 adjective /əˈθɔːrɪtətɪv/

authoritative

autoritario
Meaning
Having or showing authority; commanding and self-confident; reliable as a source of information.
Example
She spoke in an authoritative tone that silenced the room.
Ella habló con un tono autoritario que silenció la habitación.
C1 noun /ˈæmplɪtjuːd/

amplitude

amplitud
Meaning
the maximum extent of a vibration or oscillation, or the size of something
Example
The amplitude of the earthquake was measured on the Richter scale.
La amplitud del terremoto fue medida en la escala de Richter.
C1 adjective /ɔːˈtʌmnəl/

autumnal

otoñal
Meaning
relating to or characteristic of autumn; occurring in autumn
Example
The autumnal colors of red and gold filled the forest.
Los colores otoñales de rojo y oro llenaron el bosque.
C1 noun əˈɡrɛriən səˈsaɪətiz

agrarian societies

sociedades agrarias
Meaning
Societies based on agriculture and farming as the primary economic activity.
Example
Agrarian societies emerged from a need for stable food sources.
Las sociedades agrarias surgieron por la necesidad de fuentes estables de alimentos.
C1 noun /əˈliː.dʒəns/

allegiance

lealtad
Meaning
Loyalty or commitment of a subordinate to a superior or of an individual to a group or cause.
Example
Soldiers take an oath of allegiance to their country.
Los soldados hacen un juramento de lealtad a su país.
C1 adjective /ænˈtɪriər/

anterior

anterior
Meaning
Situated at or toward the front; coming before in position or time.
Example
The anterior part of the brain controls logical thinking.
La parte anterior del cerebro controla el pensamiento lógico.
C1 noun /ədˈhɪərənt/

adherent

seguidor
Meaning
a person who supports or follows a particular belief, cause, or leader
Example
He is a strong adherent of democratic values.
Él es un fuerte seguidor de los valores democráticos.
C1 noun /ˈæftərˌθɔːt/

afterthought

un añadido
Meaning
Something added or considered later than originally planned.
Example
The gift seemed like an afterthought rather than a genuine gesture.
El regalo parecía un detalle de última hora más que un gesto genuino.
C1 noun /əˈdʒɪl.ɪ.ti/

agility

agilidad
Meaning
Ability to work quickly and easily, both physically and mentally.
Example
Mental agility is essential for problem-solving.
La agilidad mental es esencial para resolver problemas.
C1 adverb /ɔːˈtɒnəməsli/

autonomously

de forma autónoma
Meaning
In an independent or self-governing manner.
Example
The robot can operate autonomously without human intervention.
El robot puede operar de forma autónoma sin intervención humana.
C1 noun /ˈeɪ.nəs/

Anus

ano
Meaning
the opening at the end of the digestive tract through which waste leaves the body
Example
The doctor examined the patient's anus during the medical checkup.
El doctor examinó el ano del paciente durante el chequeo médico.
C1 noun /ˌædməˈnɪʃən/

admonition

amonestación
Meaning
a firm warning or reprimand; gentle or earnest advice
Example
He received an admonition for his careless work.
Él recibió una amonestación por su trabajo descuidado.
C1 noun ˈæk.si.əm

axiom

axioma
Meaning
A statement or principle that is considered true and does not require proof.
Example
Actions speak louder than words is a well-known axiom.
Las acciones hablan más fuerte que las palabras, es un axioma conocido.
C1 verb /əˈvɛndʒ/

avenge

vengar
Meaning
to inflict harm in return for an injury or wrong done to oneself or another
Example
He vowed to avenge his brother's death.
Él juró vengar la muerte de su hermano.
C1 noun /ˈɑː.kɪ.taɪp/

archetype

arquetipo, modelo original
Meaning
A very typical example of a certain person or thing; an original model or prototype.
Example
This painting is the archetype of modern art.
Esta pintura es el arquetipo del arte moderno.
C1 noun /ˌæbəˈrɪdʒəniːz/

aborigines

aborígenes
Meaning
The original inhabitants of a land, especially in Australia.
Example
The aborigines have preserved their traditions for thousands of years.
Los aborígenes han preservado sus tradiciones durante miles de años.
C1 noun /ˈæŋɡwɪʃ/

anguish

angustia
Meaning
Severe mental or physical pain or suffering.
Example
She was in deep anguish after hearing the tragic news.
Ella estaba en profunda angustia después de escuchar la trágica noticia.
C1 adverb /əˈfrɛʃ/

afresh

de nuevo
Meaning
From the beginning, in a new way.
Example
After the failure, they started the project afresh.
Después del fracaso, comenzaron el proyecto de nuevo.
C1 verb /əˈluːd/

allude

aludir
Meaning
To refer to something indirectly or casually.
Example
The professor alluded to Shakespeare during the lecture.
El profesor aludió a Shakespeare durante la conferencia.
C1 noun /ˈælkəmi/

alchemy

alquimia
Meaning
A medieval practice combining elements of chemistry and philosophy, aimed at transforming matter, especially turning base metals into gold.
Example
Medieval scientists devoted their lives to alchemy.
Los científicos medievales dedicaron sus vidas a la alquimia.
C1 noun /əˈrɪs.tə.kræt/

Aristocrat

aristócrata; persona de nobleza
Meaning
a member of the aristocracy; a person of noble rank or birth
Example
The aristocrat lived in a magnificent castle.
El aristócrata vivía en un castillo magnífico.
C1 noun /ˌænəsˈθetɪk/

anesthetic

anestésico
Meaning
A substance that causes loss of sensation or consciousness, especially used during surgery.
Example
The doctor administered a local anesthetic before stitching the wound.
El doctor administró un anestésico local antes de suturar la herida.
C1 adjective /ˈæv.ɪd/

avid

ávido
Meaning
having an eager desire or enthusiasm for something
Example
She is an avid reader of mystery novels.
Ella es una ávida lectora de novelas de misterio.
C1 verb /eɪl/

ail

padecer una enfermedad
Meaning
to be ill or suffer from a physical or mental problem; to trouble or afflict
Example
She has been ailing since last winter.
Ella ha estado enferma desde el invierno pasado.
C1 verb /ədˈmɒnɪʃ/

admonish

amonestar
Meaning
to warn or reprimand someone firmly; to advise or urge earnestly
Example
The teacher admonished the students for being late.
El profesor amonestó a los estudiantes por llegar tarde.
C1 adjective /ədˈmɪsəbl/

admissible

admisible
Meaning
acceptable or valid, especially as evidence in a court of law
Example
The judge ruled that the document was admissible as evidence.
El juez dictaminó que el documento era admisible como prueba.
C1 noun /ɔːˈtɒkrəsi/

autocracy

autocracia
Meaning
A system of government in which one person has absolute power.
Example
The country suffered under decades of autocracy.
El país sufrió durante décadas bajo una autocracia.
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 adjective /ɔːˈtɒn.ə.məs/

autonomous

autónomo
Meaning
Acting independently or having the freedom to do so.
Example
Autonomous systems ensure greater precision.
Los sistemas autónomos garantizan mayor precisión.
C1 noun /əˈlʌmnəs/

alumnus

exalumno
Meaning
a former student or graduate of a school, college, or university
Example
He is an alumnus of Harvard University.
Él es un exalumno de la Universidad de Harvard.