auxiliary
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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 /æbˈstrækʃən/

abstraction

abstracción
Meaning
the process of forming general ideas by removing specific details; an abstract concept or idea
Example
Abstraction allows complex ideas to be represented in a simplified form.
La abstracción permite representar ideas complejas de forma simplificada.
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 /ɔːˈrɔːrə/

aurora

aurora
Meaning
A natural display of lights in the sky, usually seen in polar regions.
Example
We traveled to Norway to see the northern aurora.
Viajamos a Noruega para ver la aurora del norte.
C1 noun, adverb /ˈeɪliəs/

alias

alias
Meaning
A false or assumed identity; also used to mean 'otherwise called'.
Example
The criminal was known by the alias 'Shadow'.
El criminal era conocido por el alias 'Sombra'.
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 noun /ˈæbət/

abbot

abad
Meaning
The head of a monastery for monks.
Example
The abbot welcomed the visitors to the monastery.
El abad dio la bienvenida a los visitantes al monasterio.
C1 verb /əˈtɛst/

attest

atestiguar
Meaning
To provide or serve as clear evidence of; to confirm or certify the truth of something.
Example
The witness attested to the accuracy of the report.
El testigo atestiguó la exactitud del informe.
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 noun /ˌæktʃuˈæləti/

actuality

actualidad
Meaning
The state of existing in reality rather than in appearance or imagination.
Example
The movie was based on historical actuality.
La película estaba basada en la actualidad histórica.
C1 noun /ˈæmnəsti/

amnesty

amnistía
Meaning
An official pardon granted to people who have been convicted of political offenses.
Example
The government announced an amnesty for all political prisoners.
El gobierno anunció una amnistía para todos los prisioneros políticos.
C1 adjective ˌæɡrɪˈkʌltʃərəli sɪɡˈnɪfɪkənt

agriculturally significant

importante relacionado con la agricultura
Meaning
Important or crucial related to farming and agriculture
Example
Winter is agriculturally significant for crop production.
El invierno es importante para la producción de cultivos.
C1 noun /əˌtɜːni ˈdʒɛnərəl/

attorney-general

fiscal general
Meaning
The chief legal officer of a state or country.
Example
The attorney-general announced new reforms to strengthen justice.
El fiscal general anunció nuevas reformas para fortalecer la justicia.
C1 noun /əˈkʌmpənɪmənt/

accompaniment

acompañamiento
Meaning
Something that goes together with or complements another thing, often music or food.
Example
The dish was served with a spicy sauce as an accompaniment.
El plato se sirvió con una salsa picante como acompañamiento.
C1 verb /ˈæmbʊʃ/

ambush

emboscar
Meaning
To attack suddenly and unexpectedly from a hidden position.
Example
The soldiers planned to ambush the enemy at dawn.
Los soldados planearon emboscar al enemigo al amanecer.
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 /əˈkleɪm/

acclaim

elogiar
Meaning
to praise enthusiastically and publicly
Example
The audience acclaimed the actor for his outstanding performance.
La audiencia aclamó al actor por su impresionante actuación.
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 noun /ˌævɒ̃ˈɡɑːrd/

avantgarde

vanguardia
Meaning
people or works that are innovative, experimental, and ahead of their time
Example
The avantgarde of the 20th century reshaped modern art.
La vanguardia del siglo XX remodeló el arte moderno.
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 /ˈæpəθi/

apathy

apatía
Meaning
a lack of interest, enthusiasm, or concern
Example
The students showed apathy towards the new rules.
Los estudiantes mostraron apatía hacia las nuevas reglas.
C1 noun /ˌɑːr.kəˈpɛl.əˌɡoʊ/

archipelago

archipiélago
Meaning
A group of islands clustered together in a body of water.
Example
Indonesia is an archipelago with thousands of islands.
Indonesia es un archipiélago con miles de islas.
C1 noun /ˈæl.kə.laɪ/

alkali

alcalino
Meaning
a soluble base substance, typically with a pH greater than 7, that neutralizes acids
Example
Soap contains alkali which helps remove grease.
El jabón contiene alcalino que ayuda a quitar la grasa.
C1 verb /əˈsæsɪneɪt/

assassinate

asesinar
Meaning
To murder someone important, often a political or religious leader, usually by surprise attack.
Example
The rebels planned to assassinate the king.
Los rebeldes planearon asesinar al rey.
C1 adjective /æbˈdɑː.mə.nəl/

abdominal

abdominal
Meaning
relating to the abdomen (the part of the body between the chest and pelvis)
Example
He complained of severe abdominal pain.
Se quejaba de un dolor abdominal severo.
C1 adjective /ˌeɪˈsɛkʃuəl/

asexual

asexual
Meaning
Without sexual feelings, associations, or reproduction through sex.
Example
Many plants reproduce through asexual methods like budding or splitting.
Muchas plantas se reproducen mediante métodos asexuales como la gemación o la división.
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 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 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 /ˈɔː.də.bəl/

Audible

audible
Meaning
able to be heard; loud enough to hear
Example
The speaker's voice was barely audible from the back of the large hall.
La voz del orador apenas era audible desde el fondo del gran salón.
C1 verb /ænˈtæɡənaɪz/

antagonize

antagonizar
Meaning
to cause someone to become hostile or angry; to provoke opposition
Example
His rude remarks only served to antagonize his colleagues.
Sus comentarios groseros solo sirvieron para antagonizar a sus colegas.
C1 adjective /əˈtjuːnd/

attuned

ajustado / sensible
Meaning
Being receptive or sensitive to something; well adjusted or in harmony.
Example
She is attuned to the needs of her students.
Ella está ajustada a las necesidades de sus estudiantes.
C1 noun /ˈæd.vənt/

advent

advenimiento
Meaning
The arrival of a notable person, thing, or event.
Example
The advent of the internet changed the way people communicate.
El advenimiento de Internet cambió la forma en que las personas se comunican.
C1 adjective /əˈtrəʊ.ʃəs/

Atrocious

atroz; extremadamente malo o desagradable
Meaning
horrifyingly wicked; extremely bad or unpleasant
Example
The conditions in the prison were atrocious.
Las condiciones en la prisión eran atroces.
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 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 adjective /ˈeɪ.mi.ə.bəl/

Amiable

amable y agradable; de buen carácter; bondadoso
Meaning
friendly and pleasant; good-natured; kind
Example
My neighbor is very amiable and always greets everyone warmly.
Mi vecino es muy amable y siempre saluda a todos calurosamente.
C1 noun /əˈrɪəz/

arrears

deuda pendiente
Meaning
Money that is owed and should have been paid earlier.
Example
She was months in arrears with her electricity bill.
Estaba meses en deuda con su factura de electricidad.
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 verb əˈnaɪ.ə.leɪt

annihilate

aniquilar
Meaning
Destroy utterly; obliterate; reduce to nothing.
Example
The explosion annihilated the entire village.
La explosión aniquiló toda la aldea.
C1 noun /ˌæntɪˈsiːdənt/

antecedent

antecedente
Meaning
something that came before; a previous event, condition, or cause
Example
The cultural antecedents of this festival go back centuries.
Los antecedentes culturales de este festival datan de siglos atrás.
C1 adjective eɪˈsɪŋ.krə.nəs

asynchronous

asíncrono
Meaning
Of or requiring a form of computer control timing protocol in which a specific operation begins upon receipt of an indication that the preceding operation has been completed.
Example
Asynchronous courses allow students to learn at their own pace.
Los cursos asincrónicos permiten a los estudiantes aprender a su propio ritmo.
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/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 /əˈrɛstɪŋ/

arresting

atractivo
Meaning
Attracting attention in a striking or impressive way.
Example
The actress gave an arresting performance.
La actriz dio una actuación atractiva.
C1 adverb /ˈæm.ɪ.kə.bli/

Amicably

amistosamente
Meaning
in a friendly way without anger or resentment
Example
The divorce was settled amicably between both parties.
El divorcio se resolvió amistosamente entre ambas partes.
C1 noun /əˈtoʊnmənt/

atonement

expiación
Meaning
the act of making amends for a wrong, sin, or injury
Example
The festival was celebrated as a day of atonement.
El festival fue celebrado como un día de expiación.
C1 noun /ədˈmɪtəns/

admittance

admisión
Meaning
the process or fact of entering or being allowed to enter a place
Example
No admittance without a valid ticket.
No hay admisión sin un boleto válido.
C1 noun /ˈæbdəmən/

abdomen

abdomen
Meaning
The part of the body below the chest and above the hips that contains the stomach and other organs.
Example
He complained of pain in his abdomen.
Él se quejó de dolor en su abdomen.
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 /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 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 /ədˈhɪə.rəns/

adherence

cumplimiento
Meaning
The practice of following or keeping to a rule, standard, or belief.
Example
Adherence to rules is crucial in any organization.
El cumplimiento de las reglas es crucial en cualquier organización.
C1 noun ˌæmbɪˈɡjuːɪti

ambiguity

ambigüedad, vaguedad
Meaning
The quality of being open to more than one interpretation; inexactness.
Example
The ambiguity of the statement caused confusion among the team.
La ambigüedad de la declaración causó confusión en el equipo.
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 noun, verb /əˈsɛnt/

assent

asentimiento
Meaning
To agree to something, especially after careful consideration; an expression of approval.
Example
She nodded her head in silent assent.
Ella asintió con la cabeza en silencio.
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 adverb /əˈtroʊʃəsli/

atrociously

atrozmente
Meaning
in a very cruel, shocking, or extremely bad manner
Example
The service at the restaurant was atrociously slow.
El servicio del restaurante fue atrozmente lento.
C1 noun /əˈlɒt.mənt/

allotment

asignación, reparto
Meaning
The distribution or allocation of something, especially resources or portions.
Example
Each department received an allotment of resources.
Cada departamento recibió una asignación de recursos.
C1 noun /ˈælɔɪ/

alloy

aleación
Meaning
A mixture of metals or a metal combined with another element.
Example
Bronze is an alloy of copper and tin.
El bronce es una aleación de cobre y estaño.
C1 noun /ˈɔːtəkræt/

autocrat

autócrata
Meaning
A ruler with absolute power.
Example
The autocrat controlled the country with an iron fist.
El autócrata controlaba el país con mano de hierro.
C1 noun əbˈzɔːrp.ʃən

absorption

absorción
Meaning
The process or action by which one thing absorbs or is absorbed by another.
Example
Plants help in the absorption of carbon dioxide.
Las plantas ayudan en la absorción de dióxido de carbono.
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 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 /æbˈdʌk.ʃən/

abduction

secuestro
Meaning
the act of taking someone away illegally by force; kidnapping
Example
The police are investigating the abduction of the child.
La policía está investigando el secuestro del niño.
C1 verb /ˈæɡənaɪz/

agonize

agonizar
Meaning
To suffer extreme physical or mental pain; to spend time worrying.
Example
She agonized for days over whether she had made the right decision.
Ella agonizó durante días sobre si había tomado la decisión correcta.
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 /ˌɔːtəˈkrætɪk/

autocratic

autocrático
Meaning
Relating to a ruler who has absolute power and does not consult others.
Example
The manager’s autocratic style discouraged employees from sharing their ideas.
El estilo autocrático del gerente desalentó a los empleados de compartir sus ideas.
C1 noun ˈæ.sɛt ˌæl.əˈkeɪ.ʃən

asset allocation

asignación de activos
Meaning
An investment strategy that aims to balance risk and reward by apportioning a portfolio's assets according to an individual's goals, risk tolerance, and investment horizon.
Example
Proper asset allocation is key to financial growth.
Una correcta asignación de activos es clave para el crecimiento financiero.
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 verb /əˈdʒɔɪn/

adjoin

unirse
Meaning
To be next to and joined with something.
Example
Their house adjoins the park.
Su casa está unida al parque.
C1 noun, verb /ˈɔːtɒpsi/

autopsy

autopsia
Meaning
a post-mortem examination to discover the cause of death or the extent of disease
Example
The autopsy revealed that the victim had died from poisoning.
La autopsia reveló que la víctima murió por envenenamiento.
C1 noun ˈælərdʒən

allergen

sustancia que causa una reacción alérgica
Meaning
A substance that causes an allergic reaction.
Example
Pollen is a common allergen that affects many people.
El polen es un alérgeno común que afecta a muchas personas.
C1 adjective /əˈbreɪsɪv/

abrasive

áspero, rugoso o capaz de desgastar por frotamiento
Meaning
harsh, rough, or capable of wearing down by rubbing
Example
His abrasive tone made everyone uncomfortable.
Su tono áspero hizo que todos se sintieran incómodos.
C1 noun əˌsɪm.ɪˈleɪ.ʃən

Assimilation

asimilación
Meaning
Connecting new information with existing knowledge
Example
Proper assimilation of knowledge leads to effective learning.
La correcta asimilación del conocimiento conduce a un aprendizaje efectivo.
C1 noun /ˌɑːrbɪˈtreɪʃən/

arbitration

arbitraje
Meaning
the process of resolving a dispute through an impartial third party whose decision is binding; formal judgment outside a court
Example
The contract requires arbitration to settle any disputes.
El contrato exige arbitraje para resolver cualquier disputa.
C1 adjective /ˌærɪˈstɒkrætɪk/

Aristocratic

aristocrático; perteneciente a la nobleza
Meaning
noble; having the manners of the upper class
Example
She had an aristocratic bearing that commanded respect.
Ella tenía una actitud aristocrática que imponía respeto.
C1 verb /əˈpreɪz/

appraise

evaluar
Meaning
to evaluate the value, quality, or importance of something
Example
The jeweler appraised the diamond before buying it.
El joyero evaluó el diamante antes de comprarlo.
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 /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 /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 noun /əˈkuːstɪks/

acoustics

acústica
Meaning
the science of sound, or the properties of a space that affect how sound is heard
Example
The hall’s excellent acoustics made the orchestra sound rich and clear.
La excelente acústica del salón hizo que la orquesta sonara rica y clara.
C1 noun /əˌsaɪˈniː/

assignee

persona asignada
Meaning
a person to whom a right or property is legally transferred
Example
The assignee of the contract is responsible for all future obligations.
El asignado del contrato es responsable de todas las obligaciones futuras.
C1 noun /ˈænərki/

anarchy

anarquía
Meaning
a state of disorder due to the absence or failure of government or authority
Example
The collapse of the regime led to anarchy in the streets.
El colapso del régimen llevó a la anarquía en las calles.
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 /əˈdʒeɪsənsi/

adjacency

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

anomalous

anómalo
Meaning
deviating from what is standard, normal, or expected
Example
Scientists observed an anomalous result during the experiment.
Los científicos observaron un resultado anómalo durante el experimento.
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 /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 /əbˈsteɪn/

abstain

abstenerse
Meaning
To restrain oneself from indulging in or partaking of something.
Example
People often abstain from digital devices to enhance focus.
Las personas a menudo se abstienen de los dispositivos digitales para mejorar su enfoque.
C1 noun /ˈɔːnɪŋ/

awning

toldo
Meaning
a sheet of canvas or material stretched on a frame to shelter a place from the sun or rain
Example
We sat under the awning to avoid the heavy rain.
Nos sentamos debajo del toldo para evitar la lluvia intensa.
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 adjective /iːsˈθɛθɪkəl/

aesthetical

estético
Meaning
concerned with beauty or the appreciation of beauty; related to artistic taste or appearance
Example
The architect focused on the aesthetical balance of the building.
El arquitecto se centró en el equilibrio estético del edificio.
C1 adjective /ˌæntiˈsleɪvəri/

antislavery

antiesclavismo
Meaning
Opposed to the practice or system of slavery.
Example
The antislavery movement gained momentum in the 19th century.
El movimiento antiesclavista cobró impulso en el siglo XIX.
C1 adjective /ˈɔːbərn/

auburn

castaño rojizo
Meaning
reddish-brown in color, especially used to describe hair
Example
She has long auburn hair that shines in the sunlight.
Ella tiene el cabello largo y castaño rojizo que brilla al sol.
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 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 noun /ˌæn.əˈnɪm.ə.ti/

anonymity

anonimato
Meaning
The state of being anonymous; having one's identity kept secret or unknown.
Example
Online anonymity protects users from cyber threats.
La anonimidad en línea protege a los usuarios de amenazas cibernéticas.
C1 adverb /əˈlɜːrtli/

alertly

atentamente
Meaning
in a watchful, attentive, and quick-to-notice manner
Example
She listened alertly to every sound in the dark forest.
Ella escuchó atentamente cada sonido en el bosque oscuro.
C1 noun /əˈstuːt.nəs/

astuteness

astucia
Meaning
The ability to accurately assess situations or people and turn this to one's advantage.
Example
His astuteness helped in negotiations.
Su astucia ayudó en las negociaciones.
C1 noun /əˈpɒsəl/

apostle

apóstol, defensor
Meaning
A vigorous and pioneering advocate or supporter of a particular cause, often used for the early Christian disciples.
Example
He became an apostle of environmental protection.
Él se convirtió en un apóstol de la protección del medio ambiente.
C1 noun /ˈæntlɚ/

antler

cuerno de ciervo
Meaning
The branched horns on the head of a deer or similar animal, usually shed and regrown annually.
Example
The deer’s antlers grew larger each year.
Los cuernos de ciervo crecían más grandes cada año.
C1 adjective /ˌæntiˈneɪtl/

antenatal

prenatal
Meaning
Relating to the medical care and treatment given to a pregnant woman before the birth of her child.
Example
She attended regular antenatal checkups throughout her pregnancy.
Ella asistió a chequeos prenatales regulares durante su embarazo.
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 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 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 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 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 /ˈeɪ.peks/

apex

ápice, cumbre, pico más alto
Meaning
The highest point or peak of something; the top or summit.
Example
He reached the apex of his career.
Él alcanzó el ápice de su carrera.
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 /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 /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 /ˌɑːrtʃˈbɪʃəp/

archbishop

arzobispo
Meaning
A senior bishop in charge of an archdiocese in the Christian Church.
Example
The archbishop delivered a sermon to thousands of people.
El arzobispo dio un sermón a miles de personas.
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 adjective, verb /ˈeɪlɪŋ/

ailing

enfermo
Meaning
suffering from illness or poor health; experiencing problems or decline
Example
The ailing patient slowly began to recover after treatment.
El paciente enfermo comenzó a recuperarse lentamente después del tratamiento.
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 verb /ɔːˈθɛntɪkeɪt/

authenticate

autenticar
Meaning
To prove or show that something is genuine or true.
Example
The bank uses advanced technology to authenticate online transactions.
El banco utiliza tecnología avanzada para autenticar las transacciones en línea.
C1 adjective ˈæl.ɡə.rɪ.ðəm drɪv.ən

algorithm-driven

impulsado por algoritmos.
Meaning
Controlled or powered by computer algorithms.
Example
Algorithm-driven systems increase accuracy.
Los sistemas impulsados por algoritmos aumentan la precisión.
C1 noun ˌæprɪˈhɛnʃən

apprehension

preocupación
Meaning
Anxiety or fear that something bad or unpleasant will happen.
Example
There is an apprehension about the depletion of fish stocks.
Hay preocupación por la disminución de las existencias de pescado.
C1 adjective /ɑːrˈkeɪɪk/

archaic

arcaico
Meaning
very old or old-fashioned; belonging to an earlier time
Example
Some laws are considered archaic and no longer relevant.
Algunas leyes se consideran arcaicas y ya no son relevantes.
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.