aide-de-camp
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C2 noun /ˌeɪd də ˈkæmp/

aide-de-camp

oficial militar que actúa como asistente confidencial de un oficial superior
Meaning
A military officer acting as a confidential assistant to a senior officer.
Example
The general was accompanied by his aide-de-camp during the ceremony.
El general estuvo acompañado por su aide-de-camp durante la ceremonia.
C2 noun /ˈɔːɡjʊri/

augury

augurio
Meaning
A sign or omen that is believed to predict future events.
Example
The dark clouds were seen as an augury of an approaching storm.
Las nubes oscuras fueron vistas como un augurio de una tormenta que se acercaba.
C2 verb /əˈsɛvəˌreɪt/

asseverate

aseverar
Meaning
to affirm or declare positively and earnestly
Example
He asseverated that he had never seen the man before.
Él afirmó que nunca había visto al hombre antes.
C2 verb əˈmiːljəreɪt

ameliorate

mejorar, perfeccionar
Meaning
To make better; improve or enhance something.
Example
The new policies are designed to ameliorate living conditions.
Las nuevas políticas están diseñadas para mejorar las condiciones de vida.
C2 noun /ˌæntɪˈtɒksɪn/

antitoxin

antitoxina
Meaning
A substance that neutralizes a specific toxin in the body.
Example
The doctor administered an antitoxin to counter the snake venom.
El doctor administró una antitoxina para contrarrestar el veneno de la serpiente.
C2 noun /ˌæŋɡləˈfoʊbiə/

anglophobia

anglofobia
Meaning
Dislike or fear of England, English people, or English culture.
Example
The politician was accused of promoting Anglophobia in his speeches.
El político fue acusado de promover la anglofobia en sus discursos.
C2 noun əˈdrɔɪt.nəs

adroitness

destreza
Meaning
Cleverness or skill, especially in using the hands or mind; skillful dexterity.
Example
His adroitness in negotiations secured the deal.
Su destreza en las negociaciones aseguró el trato.
C2 verb /ˈæntɪdeɪtɪd/

antedated

fechado anteriormente
Meaning
assigned to an earlier date than the actual one; happened earlier
Example
The letter was antedated to appear more official.
La carta fue antedatada para parecer más oficial.
C2 adjective /ˈɑːrtləs/

artless

sencillo, natural
Meaning
Without deception or pretentiousness; natural and simple.
Example
Her artless smile made everyone feel at ease.
Su sonrisa sincera hizo que todos se sintieran cómodos.
C2 noun əˈlæk.rə.t̬i

alacrity

disposición rápida y alegre
Meaning
Brisk and cheerful readiness.
Example
He accepted the challenge with alacrity.
Aceptó el desafío con alacridad.
C2 noun /əˈklɪvɪti/

acclivity

pendiente ascendente
Meaning
An upward slope or incline on the ground.
Example
The hikers struggled as they climbed the steep acclivity.
Los excursionistas lucharon mientras subían la empinada pendiente ascendente.
C2 noun /ˈɪəri/ or /ˈɛəri/

aery

nido del águila
Meaning
An eagle’s nest, or a lofty, airy dwelling.
Example
The eagle perched proudly near its aery high on the cliff.
El águila se posó orgullosamente cerca de su nido alto en el acantilado.
C2 noun /ˈæsənəns/

assonance

asonancia
Meaning
the repetition of vowel sounds in nearby words in poetry or prose
Example
The poet used assonance to create a musical effect in his verse.
El poeta usó la asonancia para crear un efecto musical en su verso.
C2 adjective /ˌɑːrbəˈrɛsənt/

arborescent

arborescente
Meaning
having the appearance or characteristics of a tree; tree-like
Example
The coral had an arborescent form that resembled a miniature forest.
El coral tenía una forma arbórea que se parecía a un pequeño bosque.
C2 adjective /ˈædɪˌpoʊs/

adipose

adiposo
Meaning
Relating to or consisting of animal fat; fatty.
Example
The doctor explained that the tissue was mainly adipose in nature.
El doctor explicó que el tejido era principalmente adiposo en la naturaleza.
C2 noun /ˌæd.ʌmˈbreɪ.ʃən/

adumbration

presagio vago
Meaning
a vague foreshadowing or symbolic representation of something
Example
The play offers an adumbration of the political unrest to come.
La obra ofrece un presagio vago del malestar político que se avecina.
C2 adjective/adverb /ˌæ.prəˈpoʊ/

apropos

apropiado
Meaning
Appropriate to the situation; relevant. As an adverb, it means 'with reference to' or 'regarding'.
Example
His comments were not apropos of the discussion.
Sus comentarios no eran apropiados para la discusión.
C2 noun /ˈeɪ.pi.ˌɛr.i/

apiary

colmenar
Meaning
A place where beehives are kept, especially for commercial purposes.
Example
The farmer built a new apiary to produce organic honey.
El agricultor construyó un nuevo colmenar para producir miel orgánica.
C2 noun /əˈnæθəmə/

anathema

anatema / cosa condenada
Meaning
something or someone intensely disliked or strongly condemned
Example
Violence is anathema to her peaceful nature.
La violencia es anatema para su naturaleza pacífica.
C2 noun /ˌækwəˈpɒnɪks/

aquaponics

acuaponia
Meaning
A system of aquaculture in which the waste produced by farmed fish or other aquatic animals supplies nutrients for plants grown hydroponically.
Example
Aquaponics efficiently utilizes water by integrating fish and plant farming.
La acuaponia utiliza el agua de manera eficiente integrando la cría de peces y el cultivo de plantas.
C2 noun /ˌæs.əˈfet.ɪ.də/

Asafoetida

asafoétida
Meaning
a pungent spice derived from the resin of a plant, commonly used in Indian cooking
Example
A pinch of asafoetida adds a distinctive flavor to the lentil curry.
Una pizca de asafoétida añade un sabor distintivo al curry de lentejas.
C2 adjective /eɪˈsɛfələs/

acephalous

acéfalo
Meaning
having no leader or head; headless
Example
The acephalous group soon fell into disorganization.
El grupo acéfalo pronto cayó en desorganización.
C2 noun /ˈeə.rəm/

Arum

arum
Meaning
a plant with large arrow-shaped leaves and a white spathe, also known as taro
Example
Arum leaves are commonly used in Bengali cuisine for cooking.
Las hojas de Arum se utilizan comúnmente en la cocina india para cocinar.
C2 noun /ˌænɪˈmɒmɪtər/

anemometer

anemómetro
Meaning
An instrument used to measure the speed and direction of wind.
Example
The scientist used an anemometer to record the wind speed during the storm.
El científico utilizó un anemómetro para registrar la velocidad del viento durante la tormenta.
C2 verb /əˈɡrɛs/

aggress

agredir
Meaning
to initiate an attack or show hostile behavior
Example
The army chose not to aggress without provocation.
El ejército decidió no agredir sin provocación.
C2 verb /əˈkɒst/

accost

abordar de manera agresiva
Meaning
to approach and speak to someone boldly or aggressively
Example
The reporter was accosted by protesters outside the courthouse.
El reportero fue acosado por los manifestantes fuera del tribunal.
C2 adjective /əˈsɛt.ɪk/

ascetic

ascético
Meaning
Practicing strict self-denial and abstaining from worldly pleasures, often for religious reasons.
Example
He lived an ascetic life in the mountains, far from worldly comforts.
Vivió una vida ascética en las montañas, alejado de las comodidades mundanas.
C2 adverb /əˈmʌk/

amok

descontroladamente
Meaning
Behaving uncontrollably and disruptively.
Example
The angry mob ran amok after the verdict was announced.
La multitud enojada corrió descontroladamente después de que se anunció el veredicto.
C2 adjective /ɔːˈrɔːrəl/

auroral

relacionado con la aurora
Meaning
Relating to or resembling the aurora, especially the northern lights.
Example
The scientists observed auroral activity in the night sky.
Los científicos observaron actividad auroral en el cielo nocturno.
C2 adverb /əˈbæk/

Aback

sorprendido
Meaning
by surprise; unexpectedly
Example
I was taken aback by his sudden announcement.
Me sorprendió su anuncio repentino.
C2 adjective ˌeə.rəʊˈstæt.ɪk

aerostatic

aerostático
Meaning
Relating to or involving gases (especially air) in equilibrium and the equilibrium of balloons or aircraft under the influence of such gases.
Example
Aerostatic designs ensure stability at high altitudes.
Los diseños aerostáticos aseguran estabilidad a grandes altitudes.
C2 verb /ˌænɪmədˈvɜːt/

animadvert

criticar
Meaning
To comment critically or unfavorably.
Example
The teacher animadverted on the student's careless mistakes.
El maestro criticó los errores descuidados del estudiante.
C2 noun /əˈstɪɡmətɪzəm/

astigmatism

astigmatismo
Meaning
An eye defect causing blurred vision due to irregular curvature of the cornea or lens.
Example
She wears glasses to correct her astigmatism.
Ella usa gafas para corregir su astigmatismo.
C2 noun /ɑːmz/

alms

limosna
Meaning
Money, food, or goods given to the poor as charity.
Example
The monk distributed alms to the needy villagers.
El monje distribuyó limosnas a los pobres aldeanos.
C2 adjective /ˈæsɪnaɪn/

asinine

asinado
Meaning
Extremely foolish or stupid.
Example
It was an asinine idea to drive into the storm without checking the weather.
Fue una idea asina conducir hacia la tormenta sin revisar el clima.
C2 verb /əˈvɜːr/

aver

afirmar
Meaning
to state or assert something confidently and strongly
Example
She averred that she was innocent.
Ella afirmó que era inocente.
C2 adjective /ˌævəˈrɪʃəs/

avaricious

codicioso
Meaning
having or showing extreme greed for wealth or material gain
Example
The avaricious landlord increased the rent unfairly.
El codicioso propietario aumentó el alquiler de manera injusta.
C2 verb /əˈdʌltəreɪt/

adulterate

adulterar
Meaning
to make something poorer in quality by adding another substance, usually of lower quality
Example
The company was fined for adulterating its products with cheap chemicals.
La compañía fue multada por adulterar sus productos con productos químicos baratos.
C2 noun /əˈluː.vi.əm/

alluvium

aluvión
Meaning
Fertile soil deposited by flowing water, especially in riverbanks.
Example
The alluvium in riverbanks is highly fertile for agriculture.
El aluvión en las orillas de los ríos es muy fértil para la agricultura.
C2 noun /ˈæbɪs/

abbess

abadesa (mujer al cargo de un convento)
Meaning
the woman in charge of a convent of nuns
Example
The abbess welcomed the visitors to the convent.
La abadesa dio la bienvenida a los visitantes al convento.
C2 adjective əˈsɪd.ju.əs

assiduous

aplicado o diligente
Meaning
Showing great care and perseverance; diligent and hardworking.
Example
His assiduous efforts led to a successful career.
Sus esfuerzos diligentes lo llevaron a una carrera exitosa.
C2 noun /əˈdɛpt.nəs/

adeptness

destreza y habilidad
Meaning
Skill and dexterity in a task.
Example
His adeptness in negotiations helped close the deal successfully.
Su destreza en las negociaciones ayudó a cerrar el trato con éxito.
C2 noun /ˌænθrəpəˈsɛntrɪzəm/

anthropocentrism

antropocentrismo
Meaning
The belief that human beings are the most important or central element of existence.
Example
Anthropocentrism often shapes environmental policies.
El antropocentrismo a menudo da forma a las políticas medioambientales.
C2 noun /ˈɑːm.lət/

Armlet

brazalete
Meaning
a band worn around the upper arm as an ornament
Example
The traditional dancer wore golden armlets that gleamed in the spotlight.
La bailarina tradicional llevaba brazaletes dorados que brillaban bajo el reflector.
C2 noun /ˈɑːrbər/

arbor

sombrío refugio de jardín formado por árboles o plantas trepadoras
Meaning
a shady garden shelter formed by trees, climbing plants, or latticework
Example
They rested under the arbor covered with roses.
Ellos descansaron debajo del árbore cubierto con rosas.
C2 verb /əbˈskɒnd/

abscond

fugarse
Meaning
to leave secretly and quickly, often to avoid arrest or punishment
Example
The thief tried to abscond with the stolen jewelry.
El ladrón intentó fugarse con las joyas robadas.
C2 noun /ˈætəvɪzəm/

atavism

atavismo
Meaning
The recurrence of traits or characteristics from a remote ancestor.
Example
The scientist noted atavism in the child’s physical features.
El científico observó atavismo en las características físicas del niño.
C2 verb /əˈkuːtə/

accoutre

vestir
Meaning
to dress or equip, especially in something impressive or elaborate
Example
The knight was accoutred in shining armor.
El caballero estaba vestido con brillante armadura.
C2 noun /əˈnɔɪnt.mənt/

anointment

unción
Meaning
The act of anointing, usually with oil, as part of a ritual or ceremony.
Example
The anointment of the new leader was a sacred ritual.
La unción del nuevo líder fue un ritual sagrado.
C2 adjective /ˈærənt/

arrant

completo, absoluto
Meaning
complete or utter (used negatively, e.g., 'arrant nonsense')
Example
His excuse was arrant nonsense.
Su excusa fue una tontería absoluta.
C2 noun /ˈɑːrbɪtər/

arbiter

árbitro
Meaning
a person who has the authority to settle a dispute or decide an issue
Example
The principal acted as the arbiter in the conflict between the students.
El director actuó como el árbitro en el conflicto entre los estudiantes.
C2 verb /ˈæbnɪˌɡeɪt/

abnegate

renunciar
Meaning
to deny or renounce something, especially a right or desire
Example
She chose to abnegate her personal interests for the sake of the team.
Ella eligió renunciar a sus intereses personales por el bien del equipo.
C2 noun /ˌæk.rəˈfoʊ.bi.ə/

acrophobia

miedo a las alturas
Meaning
An extreme or irrational fear of heights.
Example
Her acrophobia prevented her from climbing the tall building.
Su acrofobia le impidió subir al edificio alto.
C2 noun /ˌæprəˈbeɪʃən/

approbation

aprobación / elogio
Meaning
approval or praise
Example
The plan won the approbation of the board members.
El plan ganó la aprobación de los miembros del consejo.
C2 noun /ˈɔːldərmən/

alderman

miembro del consejo municipal
Meaning
An elected member of a municipal council in certain cities and towns.
Example
The alderman proposed a new plan for community parks.
El concejal propuso un nuevo plan para los parques comunitarios.
C2 noun /əˈpɜːrtənəns/

appurtenance

complemento / accesorio
Meaning
an accessory or supplementary part of something
Example
The garage is an appurtenance of the main house.
El garaje es un complemento de la casa principal.
C2 noun /ˈædʒ.ə.tənt/

Adjutant

cigüeña adjutante
Meaning
a large water bird with long legs and neck, also known as adjutant stork
Example
The adjutant stork stood motionless in the shallow water.
La cigüeña adjutante estaba quieta en el agua poco profunda.
C2 noun əˈkjuː.ə.ti

acuity

agudeza
Meaning
Sharpness or keenness of thought, vision, or hearing.
Example
His intellectual acuity made him a brilliant scientist.
Su agudeza intelectual lo convirtió en un brillante científico.
C2 noun /ˈæk.rɪ.moʊ.ni/

acrimony

acrimonía
Meaning
Bitterness and anger, especially in speech or behavior.
Example
The divorce was filled with acrimony and disputes.
El divorcio estuvo lleno de acrimonía y disputas.
C2 verb /ˈæbrəɡeɪt/

abrogate

abrogar
Meaning
To formally repeal, cancel, or abolish a law, agreement, or custom.
Example
The government decided to abrogate the outdated treaty.
El gobierno decidió abrogar el tratado obsoleto.
C2 verb /ˈæd.ʌm.breɪt/

adumbrate

presagiar
Meaning
to foreshadow or suggest something in an unclear or indirect way
Example
The report adumbrates future economic challenges.
El informe presagia futuros desafíos económicos.
C2 adjective /ˈeɪkwiəs/

aqueous

acuoso
Meaning
related to or containing water; watery
Example
The solution was in an aqueous form.
La solución estaba en forma acuosa.
C2 verb /əˈbeɪs/

abase

rebajar
Meaning
to belittle or degrade someone
Example
He refused to abase himself before the king.
Él se negó a rebajarse ante el rey.
C2 adjective, adverb /əˈfʊt/

afoot

en marcha
Meaning
In progress; happening or being prepared.
Example
There are several new projects afoot in the company.
Hay varios proyectos nuevos en marcha en la empresa.
C2 noun /əˈbaɪdəns/

abidance

cumplimiento
Meaning
the act of following, accepting, or complying with something
Example
Her abidance by the rules impressed the committee.
Su cumplimiento de las reglas impresionó al comité.
C2 noun ˌæb.əˈreɪ.ʃən

aberration

aberración, desviación, anomalía
Meaning
A departure from what is normal, usual, or expected, typically one that is unwelcome.
Example
The scientist dismissed the data as an aberration.
El científico desestimó los datos como una aberración.
C2 adjective /ænˈdrɒdʒɪnəs/

androgynous

andrógino
Meaning
Having both male and female characteristics; not clearly masculine or feminine.
Example
The fashion show featured models with an androgynous look.
El desfile de moda presentó modelos con un look andrógino.
C2 noun /əˈfeɪ.ʒə/

aphasia

afasia
Meaning
a medical condition that causes loss of ability to speak or understand language
Example
After the stroke, she was diagnosed with aphasia.
Después del derrame cerebral, le diagnosticaron afasia.
C2 noun /ˈiːsθiːt/ or /ˈɛsθiːt/

aesthete

esteta
Meaning
A person who has a special appreciation of art and beauty.
Example
The aesthete admired the subtle details of the painting.
El esteta admiraba los detalles sutiles de la pintura.
C2 verb /əˈkriːt/

accrete

acumularse
Meaning
to grow or increase gradually by accumulation or addition
Example
Dust particles accrete over time to form larger celestial bodies.
Las partículas de polvo se acumulan con el tiempo para formar cuerpos celestes más grandes.
C2 noun /ˈæn.ə.lɪst/

annalist

análisis histórico
Meaning
A person who writes annals or records events year by year.
Example
The annalist carefully documented the events of the king's reign.
El analista documentó cuidadosamente los eventos del reinado del rey.
C2 noun /ˈeɪ.viˌɛr.i/

aviary

aviario
Meaning
a large enclosure for keeping birds
Example
The zoo built a new aviary for exotic parrots.
El zoológico construyó un nuevo aviario para los loros exóticos.
C2 verb /ˈæmərˌtaɪz/

amortize

amortizar
Meaning
To gradually reduce or pay off a debt with regular payments.
Example
They plan to amortize the mortgage over 20 years.
Ellos planean amortizar la hipoteca en 20 años.
C2 noun /ˈækəlaɪt/

acolyte

acólito
Meaning
a follower or assistant, especially in a religious service or as a devoted supporter of a leader
Example
The senator arrived with a small group of acolytes who handled the press.
El senador llegó con un pequeño grupo de acólitos que se encargaban de la prensa.
C2 noun /ˈæmjʊlət/

Amulet

amuleto; talismán
Meaning
an ornament or small piece of jewelry thought to give protection against evil, danger, or disease
Example
She wore a silver amulet around her neck for good luck.
Ella llevaba un amuleto de plata alrededor del cuello para la buena suerte.
C2 noun /əˈmæl.ɡəm/

amalgam

mezcla
Meaning
a mixture or blend of different things
Example
The new policy is an amalgam of several previous laws.
La nueva política es una mezcla de varias leyes anteriores.
C2 adjective /əˈθɜːrst/

athirst

sediento, ansioso
Meaning
Very eager or desirous for something.
Example
The explorer was athirst for adventure.
El explorador estaba sediento de aventura.
C2 noun (plural) /əˈspɜːr.ʒənz/

aspersions

aspersión
Meaning
Critical or slanderous remarks; multiple attacks on reputation.
Example
The politician rejected the aspersions cast against him.
El político rechazó las aspersiones lanzadas contra él.
C2 noun /əˌpɒθiˈoʊsɪs/

apotheosis

apoteosis, el punto más alto
Meaning
The highest point of development; the perfect example of something; the elevation of someone to divine status.
Example
Many see the Renaissance as the apotheosis of art and culture in Europe.
Muchos ven el Renacimiento como la apoteosis del arte y la cultura en Europa.
C2 adjective /ˌæk.rɪˈmoʊ.ni.əs/

acrimonious

amargo y lleno de ira
Meaning
Bitter and angry, often involving harsh words.
Example
The debate turned acrimonious after the controversial remark.
El debate se volvió acrimonioso después del comentario controversial.
C2 noun /əˈsɛt.ɪˌsɪz.əm/

asceticism

ascetismo, autodisciplina
Meaning
The practice of severe self-discipline and abstaining from indulgence, typically for religious or spiritual reasons.
Example
Asceticism has been a part of many religious traditions throughout history.
El ascetismo ha sido parte de muchas tradiciones religiosas a lo largo de la historia.
C2 adjective /ˌæktʃuˈɛəriəl/

actuarial

actuarial
Meaning
Relating to actuaries or their work of analyzing financial risk and uncertainty, especially in insurance and pensions.
Example
The company relied on actuarial reports to set insurance premiums.
La empresa confió en los informes actuariales para fijar las primas de seguros.
C2 noun /ænˈtɪpəθi/

antipathy

antipatía
Meaning
a deep-seated feeling of dislike or aversion toward something or someone
Example
There was a mutual antipathy between the two rival companies.
Había una antipatía mutua entre las dos empresas rivales.
C2 noun /əˈnæb.ə.lɪ.zəm/

anabolism

anabolismo
Meaning
The set of metabolic pathways that construct molecules from smaller units, involving tissue repair and growth.
Example
Anabolism is essential for muscle growth and tissue repair.
El anabolismo es esencial para el crecimiento muscular y la reparación de tejidos.
C2 noun /əˈɡrɒnəmi/

agronomy

Agronomía
Meaning
The science and practice of soil management and crop production, focusing on the principles of plant and soil science to optimize agricultural productivity.
Example
Agronomy focuses on soil management and crop production.
La agronomía se enfoca en la gestión del suelo y la producción de cultivos.
C2 adjective /ˈæfərənt/

afferent

aferente
Meaning
carrying impulses toward a central organ or part, especially toward the brain or spinal cord
Example
Afferent nerves carry signals from the body to the brain.
Los nervios aferentes llevan señales desde el cuerpo al cerebro.
C2 noun /əˈspɜːr.ʒən/

aspersion

calumnia
Meaning
An attack on the reputation or integrity of someone.
Example
He cast an aspersion on her character.
Él lanzó una calumnia sobre su carácter.
C2 noun /ˈæpəplɛksi/

apoplexy

Pérdida súbita de conciencia o control debido a un derrame cerebral o rabia extrema
Meaning
A sudden loss of consciousness or control due to stroke or extreme anger.
Example
The old man nearly had apoplexy when he heard the shocking news.
El anciano casi sufrió apoplejía cuando escuchó la noticia impactante.
C2 noun /ˈæntɪfɒn/

antiphon

antífona
Meaning
a short chant or verse sung responsively in Christian worship, typically sung before or after a psalm or canticle
Example
The choir sang the antiphon before beginning the main hymn.
El coro cantó la antífona antes de comenzar el himno principal.
C2 adjective /ˈæpəzɪt/

apposite

apropiado
Meaning
highly appropriate or relevant to what is being discussed
Example
Her remark was particularly apposite to the situation.
Su comentario fue particularmente apropiado para la situación.
C2 verb /əˈniːl/

anneal

endurecer con calor
Meaning
To heat and cool metal or glass to make it stronger or less brittle.
Example
The blacksmith annealed the steel to improve its durability.
El herrero aniló el acero para mejorar su durabilidad.
C2 noun /ˈæl.kə.laɪ ækt/

Alkali Act

Ley de Alcalinidad
Meaning
A British law passed in 1863 to regulate the emission of hydrochloric acid gas from alkali works, representing one of the first pieces of environmental legislation.
Example
The Alkali Act of 1863 was one of the first environmental laws.
La Ley de Alcalinidad de 1863 fue una de las primeras leyes ambientales.
C2 noun /ˈæntiruːm/

anteroom

antesala
Meaning
A small room leading to a main one, often used as a waiting area.
Example
The guests waited in the anteroom before being called inside.
Los invitados esperaron en la antesala antes de ser llamados adentro.
C2 adjective /əˈkwɪzətɪv/

acquisitive

adquisitivo
Meaning
excessively interested in acquiring money or material things
Example
The acquisitive businessman bought every piece of land he could find.
El empresario codicioso compró cada parcela de terreno que pudo encontrar.
C2 verb /əˈbreɪd/

abrade

desgastar por fricción
Meaning
to scrape or wear away the surface by friction or erosion
Example
The rough cloth can easily abrade the skin.
La tela rugosa puede fácilmente desgastar la piel.
C2 noun əˌten.juˈeɪ.ʃən

attenuation

atenuación, reducción, debilitamiento
Meaning
The reduction of the force, effect, or value of something.
Example
The attenuation of sound waves affects communication.
La atenuación de las ondas sonoras afecta la comunicación.
C2 noun /ænˈtɪstrəfi/

antistrophe

antístrofe (un recurso retórico)
Meaning
A rhetorical device in which a word or phrase is repeated at the end of successive clauses; in Greek choral poetry, the part of the ode sung by the chorus in return movement.
Example
The poet used antistrophe to emphasize the repeated phrase.
El poeta usó la antístrofe para enfatizar la frase repetida.
C2 noun /əˈbrɪdʒmənt/

abridgment

abreviatura
Meaning
A shortened version of a larger work, such as a book or speech.
Example
The publisher released an abridgment of the lengthy novel for students.
El editor lanzó una abreviatura de la larga novela para los estudiantes.
C2 verb /əˈbɑː.mə.neɪt/

abominate

abominar
Meaning
to feel hatred or loathing for something
Example
She abominates cruelty to animals.
Ella abomina la crueldad hacia los animales.
C2 noun /ˈæntiˌkraɪst/

antichrist

anticristo
Meaning
A person regarded as the supreme opponent of Christ, often seen as a figure of ultimate evil.
Example
Some people fear the rise of an Antichrist in the future.
Algunas personas temen el ascenso de un anticristo en el futuro.
C2 adjective /ˈæk.rɪd/

Acrid

ácido y fuerte
Meaning
having a strong, unpleasant, and sharp smell or taste
Example
The acrid smoke from the fire made everyone cough.
El humo acrid del fuego hizo toser a todos.
C2 adjective /ˌæntɪməˈrɪdiən/

antemeridian

antes del mediodía
Meaning
Relating to the time before noon; occurring in the morning.
Example
She scheduled all her important meetings during the antemeridian hours.
Ella programó todas sus reuniones importantes durante las horas antes del mediodía.
C2 verb /əˈsɪdɪfaɪ/

acidify

acidificar
Meaning
to make something acidic or more acidic
Example
Farmers worry that pollution will acidify the soil.
Los agricultores temen que la contaminación acidifique el suelo.
C2 noun ˈɔː.tɑː.ki

autarky

autarquía, autosuficiencia
Meaning
Economic independence or self-sufficiency; a policy of establishing a self-sufficient national economy.
Example
Some nations aim for autarky to reduce reliance on imports.
Algunas naciones buscan la autarquía para reducir la dependencia de las importaciones.
C2 adjective /əˈkɜːrsɪd/

accursed

maldito
Meaning
Doomed, detestable, or under a curse.
Example
The villagers avoided the accursed house on the hill.
Los aldeanos evitaban la casa maldita en la colina.
C2 noun /əˈsper.ɪ.ti/

asperity

asperidad
Meaning
Harshness of tone, manner, or surface.
Example
She spoke with asperity when she was interrupted.
Habló con aspereza cuando la interrumpieron.
C2 adjective /eɪˈrɪðmɪk/

arrhythmic

arítmico
Meaning
Lacking a regular rhythm or beat.
Example
The patient had an arrhythmic heartbeat.
El paciente tenía un latido cardíaco arítmico.
C2 adjective /ˌækrəˈmætɪk/

achromatic

acromático
Meaning
without color; free from color
Example
The designer chose an achromatic palette of black, white, and gray.
El diseñador eligió una paleta acromática de negro, blanco y gris.
C2 noun, verb /ˈæseɪ/

assay

ensayo
Meaning
To test or analyze the quality, purity, or content of a substance; the act of such testing.
Example
The scientists assayed the mineral sample for gold content.
Los científicos analizaron la muestra mineral para el contenido de oro.
C2 noun /ˈæpədʒiː/

apogee

ápice
Meaning
the highest or most distant point; the climax or peak of something
Example
The empire reached its apogee during the 18th century.
El imperio alcanzó su ápice durante el siglo XVIII.
C2 noun/adjective /ælˈbaɪ.noʊ/

albino

albino (persona/animal sin pigmentación)
Meaning
A person, animal, or plant lacking normal pigmentation, resulting in pale skin, hair, and eyes.
Example
The albino rabbit had white fur and pink eyes.
El conejo albino tenía pelaje blanco y ojos rosados.
C2 noun /əˈmɛrɪkəˌnɪzəm/

americanism

americanismo
Meaning
A word, phrase, or practice characteristic of American English or culture.
Example
The term 'sidewalk' is an Americanism, while 'pavement' is used in British English.
El término 'sidewalk' es un americanismo, mientras que 'pavement' se usa en el inglés británico.
C2 noun /əˈbeɪəns/

abeyance

suspensión temporal
Meaning
a state of temporary suspension or inactivity
Example
The project was held in abeyance until funds became available.
El proyecto fue suspendido hasta que los fondos estuvieran disponibles.
C2 adjective /əˈɡɒɡ/

agog

emocionado
Meaning
Highly excited by eagerness, curiosity, or anticipation.
Example
The children were agog with excitement as they waited for the magician to appear.
Los niños estaban muy emocionados mientras esperaban que apareciera el mago.
C2 noun /ˈæpəˌlɔːɡ/

apologue

cuento moral
Meaning
a short moral story or fable intended to teach a lesson
Example
The teacher used an old apologue to explain honesty to the children.
El maestro usó un viejo cuento moral para explicar la honestidad a los niños.
C2 adjective /æbˈhɔːr.ənt/

Abhorrent

aborrecible; repugnante
Meaning
extremely unpleasant and causing disgust; detestable
Example
The idea of animal cruelty is abhorrent to most people.
La idea de la crueldad animal es aborrecible para la mayoría de la gente.
C2 verb /əˈdjuːs/

adduce

presentar evidencia o razones
Meaning
To provide evidence or reasons to support an argument or idea.
Example
The lawyer adduced several examples to support his case.
El abogado adujo varios ejemplos para respaldar su caso.
C2 noun, verb /əˈfrʌnt/

affront

afrenta
Meaning
An action or remark that causes outrage or offense.
Example
He took her criticism as a personal affront.
Él tomó su crítica como una afrenta personal.
C2 adjective əˈdrɔɪt

adroit

habilidoso, astuto, hábil
Meaning
clever or skillful in using the hands or mind.
Example
She is adroit at solving complex problems.
Ella es hábil para resolver problemas complejos.
C2 adjective /əˈpɜːrtənənt/

appurtenant

pertinente
Meaning
Belonging to or associated with something, often used in legal/property contexts.
Example
The right of way is appurtenant to the landowner’s property.
El derecho de paso es pertinente a la propiedad del propietario.
C2 noun /əˈɡrɒnəmɪst/

agronomist

agronomo
Meaning
A scientist who studies soil management and crop production.
Example
The agronomist suggested new methods to improve rice yields.
El agrónomo sugirió nuevos métodos para mejorar los rendimientos del arroz.