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C2 verb /ˌæd ˈlɪb/

ad-lib

decir improvisado
Meaning
to speak or perform without preparation; to improvise
Example
The comedian ad-libbed a joke when the microphone failed.
El comediante improvisó un chiste cuando el micrófono falló.
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 /ˈæpəˌsteɪt/

apostate

apóstata
Meaning
A person who renounces a religious or political belief or principle.
Example
He was labeled an apostate after abandoning the faith of his community.
Fue etiquetado como apóstata después de abandonar la fe de su comunidad.
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 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 verb /əbˈhɔːr/

abhor

aborrecer
Meaning
to regard with disgust and hatred
Example
She abhors cruelty to animals.
Ella aborrece la crueldad hacia los animales.
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 /ˌænɪmædˈvɜːʒən/

animadversion

crítica
Meaning
Strong criticism or censure.
Example
The policy attracted severe animadversion from the public.
La política atrajo una severa crítica del público.
C2 adjective /ɔːˈɡʌst/

august

augusto
Meaning
Respected and impressive; inspiring reverence or admiration.
Example
The king entered the hall with an august presence.
El rey entró al salón con una presencia augusto.
C2 noun /ˈæl.mɪ.rə/

Almirah

armario
Meaning
a large cupboard or wardrobe used for storing clothes and other items
Example
I keep all my clothes in the wooden almirah.
Guardo toda mi ropa en el armario de madera.
C2 noun /əbˈdʌktər/

abductor

secuestrador
Meaning
a person who kidnaps or forcibly takes someone away
Example
The police arrested the abductor after a nationwide search.
La policía arrestó al secuestrador después de una larga búsqueda.
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.
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 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 noun /əˈmʊr/

amour

amor secreto
Meaning
A secret or illicit love affair.
Example
The novel tells the story of a forbidden amour between two characters.
La novela cuenta la historia de un amor prohibido entre dos personajes.
C2 adjective /əˈdʌltəreɪtɪd/

adulterated

adulterado
Meaning
describes food, drink, or medicine made weaker or impure by the addition of another substance
Example
Authorities seized adulterated drugs from the warehouse.
Las autoridades incautaron medicamentos adulterados del almacén.
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 /ˈɑːriə/

aria

pieza vocal en solitario
Meaning
a solo vocal piece with instrumental accompaniment, typically in an opera
Example
The soprano performed a moving aria during the second act.
La soprano interpretó un aria conmovedora durante el segundo acto.
C2 noun (plural) /ˈɔːspɪsɪz/

auspices

auspicio
Meaning
Patronage, support, or guidance, often used in the phrase 'under the auspices of'.
Example
The conference was held under the auspices of the United Nations.
La conferencia fue celebrada bajo los auspicios de las Naciones Unidas.
C2 adjective /əˈluːsɪv/

allusive

alusivo
Meaning
Making indirect references or hints; suggestive without being explicit.
Example
The novel is full of allusive passages that point to classical literature.
La novela está llena de pasajes alusivos que apuntan a la literatura clásica.
C2 noun /ˈiːɒn/ or /ˈiːən/

aeon

eón
Meaning
An indefinitely long period of time; an age or eternity.
Example
Dinosaurs roamed the Earth millions of aeons ago.
Hace millones de eones que los dinosaurios vagaban por la Tierra.
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 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 noun /ˌæriˈviːst/

arriviste

nueva riqueza
Meaning
A person who has recently gained wealth or status but is considered arrogant or socially unsophisticated.
Example
The business world is full of ambitious arrivistes.
El mundo de los negocios está lleno de arrivistas ambiciosos.
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 noun /ˈɔːrɪkl̩/

auricle

parte externa del oído
Meaning
The external part of the ear; also an upper chamber of the heart in anatomy.
Example
The doctor examined the patient’s auricle for signs of infection.
El doctor examinó la parte externa del oído del paciente en busca de signos de infección.
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 adjective, noun /ˈænθrəpɔɪd/

anthropoid

antropoide
Meaning
Resembling a human being in form; a primate such as apes and monkeys.
Example
The gorilla is considered an anthropoid ape.
El gorila es considerado un antropoide.
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 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 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 /ænˈhaɪdrəs/

anhydrous

anhídrido
Meaning
Containing no water.
Example
The chemist used anhydrous ammonia for the experiment.
El químico usó amoníaco anhidro para el experimento.
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 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 adjective /ˌæp.rɪˈhen.sə.bəl/

Apprehensible

comprensible
Meaning
able to be understood or grasped; comprehensible
Example
The complex theory became apprehensible after the professor's explanation.
La teoría compleja se volvió comprensible después de la explicación del profesor.
C2 adjective /ˈæfəbəl/

affable

afable
Meaning
friendly, easy to talk to, and pleasant in manner
Example
He is such an affable host that everyone feels comfortable at his parties.
Es un anfitrión tan afable que todos se sienten cómodos en sus fiestas.
C2 noun /ˈeɪʒən swɒmp iːl/

Asian swamp eel

anguila de pantano asiática
Meaning
a snake-like freshwater fish that can survive in muddy waters and is considered a delicacy in South Asian cuisine
Example
Asian swamp eel can breathe air and survive in shallow muddy waters.
La anguila de pantano asiática puede respirar aire y sobrevivir en aguas fangosas poco profundas.
C2 verb /ˈæpɪtaɪz/

appetize

estimular el apetito
Meaning
to stimulate the appetite; to make someone eager or interested
Example
The aroma of fresh bread will appetize the guests before dinner.
El aroma del pan fresco estimulará el apetito de los invitados.
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 /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 /əˈluːviən/

alluvion

aluvión
Meaning
The gradual increase of land by the deposit of soil from water; also, a flood or overflow of water.
Example
The river’s alluvion added new fertile land to the village fields.
El aluvión del río añadió nueva tierra fértil a los campos del pueblo.
C2 noun /ˈɑːrkeɪˌɪzəm/

archaism

arcaísmo
Meaning
a word, expression, or style of language that is no longer in everyday use
Example
The poem is full of archaisms that give it an old-fashioned flavor.
El poema está lleno de arcaísmos que le dan un sabor anticuado.
C2 noun /ˈæl.baɪt/

albite

albita
Meaning
A white or colorless mineral of the feldspar group, often found in igneous rocks.
Example
Geologists discovered albite crystals in the rock sample.
Los geólogos descubrieron cristales de albita en la muestra de roca.
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 noun/adjective /ˈæl.əˌbæs.tər/

alabaster

alabastro (piedra blanca mineral)
Meaning
A fine-grained, usually white variety of gypsum, often used for carving; also describes something smooth and pale like alabaster.
Example
The statue was carved from pure alabaster.
La estatua fue esculpida en puro alabastro.
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 verb /ˈædjʊˌleɪt/

adulate

adular excesivamente
Meaning
to praise or flatter excessively
Example
The fans adulated the actor after his performance.
Los fans adulaban al actor después de su actuación.
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 verb /əˈbʌt/

abut

colindar
Meaning
to be next to or share a border with
Example
The park abuts the river on the north side.
El parque colinda con el río en el lado norte.
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 adverb /əˈmʌk/

amuck

de manera descontrolada
Meaning
in a frenzied, uncontrolled, or chaotic manner
Example
The bull ran amuck through the village.
El toro corrió de manera descontrolada por el pueblo.
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 noun /ˈɔːldər/

alder

Árbol de aliso
Meaning
A type of tree from the birch family that typically grows in wet ground and has simple, serrated leaves.
Example
The alder trees grew thick along the riverbank.
Los árboles de aliso crecían densos a lo largo de la orilla del río.
C2 noun /əˌkædəˈmɪʃən/

academician

académico
Meaning
a member of an academy; a scholar or expert in a field of study
Example
The academicians gathered to discuss the future of education.
Los académicos se reunieron para discutir el futuro de la educación.
C2 noun /əˈpɒθəˌkɛri/

apothecary

boticario
Meaning
A historical term for a person who prepared and sold medicines and drugs.
Example
The village apothecary provided remedies for many common illnesses.
El boticario del pueblo proporcionó remedios para muchas enfermedades comunes.
C2 noun /ˌæbnɪˈɡeɪʃən/

abnegation

abnegación
Meaning
the act of renouncing or rejecting something, especially self-denial
Example
The monk’s life was one of complete abnegation of worldly pleasures.
La vida del monje era una de completa abnegación de los placeres mundanos.
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 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 /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 /ˌætəlˈjeɪ/

atelier

taller (estudio de un artista o diseñador)
Meaning
A workshop or studio, especially for an artist or designer.
Example
The painter invited us to his atelier to view his new collection.
El pintor nos invitó a su taller para ver su nueva colección.
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 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 adjective /əˈkjuː.zəˌtɔːr.i/

accusatory

acusatorio
Meaning
Suggesting blame or indicating someone has done wrong.
Example
He gave her an accusatory glance.
Él le dio una mirada acusatoria.
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 /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 noun əˌmæl.ɡəˈmeɪ.ʃən

amalgamation

fusión, integración, amalgama
Meaning
The action, process, or result of combining or uniting.
Example
The amalgamation of AI and big data is transforming industries.
La fusión de IA y grandes datos está transformando las industrias.
C2 adjective /ˈæstrəl/

astral

astral
Meaning
Relating to the stars or to spiritual, non-physical realms.
Example
Some believe in astral projection, the ability to leave the body and travel spiritually.
Algunas personas creen en la proyección astral, la capacidad de abandonar el cuerpo y viajar espiritualmente.
C2 adjective /ˌæl.ɪˈmen.tər.i/

alimentary

relacionado con la digestión
Meaning
relating to nourishment or the organs of digestion
Example
The doctor explained the role of the alimentary canal in digestion.
El doctor explicó el papel del canal alimentario en la digestión.
C2 adverb /əˈbɛd/

abed

en la cama
Meaning
in bed
Example
She stayed abed all day due to illness.
Se quedó en la cama todo el día debido a la enfermedad.
C2 verb /ˈæsəneɪt/

assonate

asonar
Meaning
To correspond or agree in sound, especially by vowel sounds; to rhyme approximately.
Example
The lines assonate beautifully, giving the song a unique flow.
Las líneas asonan hermosamente, dándole a la canción un flujo único.
C2 noun /ˌɑːrbəˈriːtəm/

arboretum

arborétum
Meaning
a place where trees, shrubs, and plants are grown for scientific study or public display
Example
We visited the city’s arboretum to learn about exotic trees.
Visitamos el arborétum de la ciudad para aprender sobre árboles exóticos.
C2 noun /ˌæk.wiˈes.əns/

acquiescence

acuerdo tácito
Meaning
The reluctant acceptance of something without protest.
Example
His silent acquiescence to unfair rules was surprising.
Su silencioso acuerdo tácito con las reglas injustas fue sorprendente.
C2 noun /əˈrɔɪ.oʊ/

arroyo

arroyo seco
Meaning
A dry creek or stream bed that temporarily fills with water after heavy rain.
Example
After the storm, the arroyo quickly filled with rushing water.
Después de la tormenta, el arroyo se llenó rápidamente de agua.
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 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 noun /əˈbluːʃən/

ablution

ablución
Meaning
the act of washing oneself, often for religious purposes
Example
He performed his morning ablution before the prayer.
Él realizó su ablución matutina antes de la oración.
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 adjective /əˈstrɪndʒənt/

astringent

áspero
Meaning
sharp or severe in manner or style; also describes a substance that contracts skin or body tissues
Example
Her astringent tone silenced the noisy class.
Su tono áspero silenció a la clase ruidosa.
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 /ˈɑːrtɪfɪs/

artifice

artificio
Meaning
clever or cunning devices or tricks used to deceive others
Example
The politician's charm was nothing but artifice.
El encanto del político no era más que artificio.
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 adjective /ˈækwɪˌlaɪn/

aquiline

de pico de águila
Meaning
curved like an eagle's beak; hooked
Example
He had an aquiline nose that gave him a distinguished appearance.
Él tenía una nariz de pico de águila que le daba una apariencia distinguida.
C2 verb /əˈpraɪz/

apprise

informar
Meaning
to inform or notify someone
Example
The manager will apprise the staff of the new policies.
El gerente informará al personal sobre las nuevas políticas.
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 adjective /ɔːˈrɪfərəs/

auriferous

aurífero
Meaning
Containing or producing gold.
Example
The miners discovered an auriferous vein in the mountains.
Los mineros descubrieron una veta aurífera en las montañas.
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 noun /əˈrɪə/

arrear

deuda pendiente
Meaning
A debt or payment that is overdue and unpaid.
Example
He was sued for an arrear of rent.
Fue demandado por una deuda pendiente de alquiler.
C2 noun /əˈpɜːrtənənsɪz/

appurtenances

pertenencias
Meaning
Additional items or accessories associated with something, often used in a legal or property context.
Example
The house was sold along with all its appurtenances, including the garage and garden.
La casa fue vendida junto con todas sus pertenencias, incluyendo el garaje y el jardín.
C2 verb əˈtɛn.ju.eɪt

attenuate

atenuar
Meaning
To reduce the force, effect, or value of something; to make weak or thin.
Example
The medicine helps attenuate the pain.
La medicina ayuda a atenuar el dolor.
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 adjective /əˌnækrəˈnɪstɪk/

anachronistic

anacrónico
Meaning
belonging to a period other than that being portrayed; old-fashioned or outdated
Example
His views on gender roles are considered anachronistic.
Sus puntos de vista sobre los roles de género se consideran anacrónicos.
C2 adjective /eɪˈsɛptɪk/

aseptic

libre de gérmenes
Meaning
Free from contamination caused by harmful microorganisms; sterile.
Example
Surgeons must work in an aseptic environment to prevent infection.
Los cirujanos deben trabajar en un ambiente aséptico para prevenir infecciones.
C2 adjective /əˈskjuː/

askew

torcido
Meaning
Not in a straight or level position; crooked or tilted.
Example
The picture on the wall hung slightly askew.
El cuadro en la pared estaba colgado ligeramente torcido.
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 /əˈnjuː.ɪ.ti/

annuity

pensión anual
Meaning
a fixed sum of money paid to someone each year, typically for the rest of their life
Example
She receives an annuity from her late husband's insurance policy.
Ella recibe una pensión anual de la póliza de seguros de su difunto esposo.
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 /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 adjective /ˌæpəˈplɛktɪk/

apoplectic

apoplético
Meaning
Extremely angry; furious.
Example
He was apoplectic when he heard about the unfair decision.
Estaba apoplético cuando escuchó sobre la decisión injusta.
C2 noun /əˈkwaɪərmənt/

acquirement

adquisición; logro
Meaning
the act of acquiring something; something that has been acquired, especially a skill or possession
Example
Language proficiency is an important acquirement for global careers.
El dominio del idioma es una adquisición importante para carreras globales.
C2 verb /əˈmælɡəmeɪt/

amalgamate

amalgamar
Meaning
to combine or unite to form one organization or structure; to merge
Example
The two companies decided to amalgamate their operations.
Las dos compañías decidieron amalgamar sus operaciones.
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 /əˈbɛt/

abet

fomentar un crimen
Meaning
to encourage or assist someone to commit a crime or wrongdoing
Example
He was accused of abetting the criminals in their escape.
Fue acusado de ayudar a los criminales en su escape.
C2 noun /əˈpɒstəsi/

apostasy

apostasía
Meaning
The abandonment or renunciation of a religious or political belief.
Example
His public apostasy shocked his followers.
Su apostasía pública sorprendió a sus seguidores.
C2 noun /ˈæp.ɪˌkʌl.tʃər/

apiculture

apicultura
Meaning
The practice of keeping and raising bees for honey and other products.
Example
Apiculture plays a vital role in agriculture by supporting pollination.
La apicultura juega un papel vital en la agricultura al apoyar la polinización.
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 /əˈnækrəˌnɪzəm/

anachronism

anacronismo
Meaning
something that is out of its proper time period, especially something old-fashioned in a modern context
Example
Using a typewriter today feels like an anachronism.
Usar una máquina de escribir hoy se siente como un anacronismo.
C2 noun əˌdʌl.təˈreɪ.ʃən

adulteration

adulteración
Meaning
The action of making something poorer in quality by the addition of another substance.
Example
Adulteration of food is a serious health risk.
La adulteración de alimentos es un serio riesgo para la salud.
C2 noun /ˈeɪ.pi.ə.rɪst/

apiarist

apicultor
Meaning
a person who keeps and tends bees for honey production
Example
The apiarist collected fresh honey from the hives.
El apicultor recogió miel fresca de las colmenas.
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 /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 adjective /æbˈstruːs/

abstruse

abstruso
Meaning
Difficult to understand; obscure.
Example
The abstruse nature of the philosophical debate left many confused.
La naturaleza abstrusa del debate filosófico dejó a muchos confundidos.
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 /ˈɑːrtləsnəs/

artlessness

simplicidad, naturalidad
Meaning
The quality of being natural and simple without deceit or pretension.
Example
Her artlessness made her beloved by all.
Su artlessness la hizo querida por todos.
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 adjective /ˈæmbjələˌtɔːri/

ambulatory

ambulatorio
Meaning
Relating to or able to walk; relating to outpatient medical care.
Example
The patient is ambulatory and does not require bed rest.
El paciente está ambulatorio y no requiere reposo en cama.
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 /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 noun /ˌɑːrtʃˈdiːkən/

archdeacon

archidiácono
Meaning
A senior clergyman in the Christian Church ranking below a bishop.
Example
The archdeacon assisted the bishop in administrative duties.
El archidiácono ayudó al obispo en los deberes administrativos.
C2 noun /ˌær.əˈbesk/

arabesque

diseño ornamentado
Meaning
a complex, ornate design featuring intertwined flowing lines, often used in architecture or ballet poses
Example
The ceiling was decorated with delicate arabesque patterns.
El techo estaba decorado con delicados patrones de arabesco.
C2 adverb /ˌeɪˈmɔːrəli/

amorally

inmoralmente
Meaning
In a way that shows no concern about whether behavior is morally right or wrong.
Example
He acted amorally, ignoring the consequences of his actions.
Actuó inmoralmente, ignorando las consecuencias de sus acciones.
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.