allay
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C2 verb /əˈleɪ/

allay

aliviar
Meaning
to reduce the intensity of fear, worry, or pain; to calm
Example
The teacher tried to allay the students’ fears before the exam.
El maestro intentó aliviar los miedos de los estudiantes antes del examen.
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 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 /ˌæntɪˈmʌndeɪn/

antemundane

previo a la creación del mundo
Meaning
Existing or occurring before the creation of the world.
Example
Some myths speak of an antemundane chaos before order was established.
Algunos mitos hablan de un caos antemundano antes de que se estableciera el orden.
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 adjective /əˈbɪs.əl/

abyssal

relacionado con el océano profundo
Meaning
Related to or characteristic of the deep ocean, especially the zone below 4000 meters.
Example
Abyssal creatures survive in extreme pressure conditions.
Las criaturas abisales sobreviven en condiciones de presión extrema.
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 noun /ˈæsɪˌteɪt/

acetate

acetato
Meaning
a salt or ester of acetic acid; a synthetic material used in textiles and film
Example
The company produces acetate fibers for clothing.
La empresa produce fibras de acetato para ropa.
C2 noun /əˈdɛndəm/

addendum

adenda
Meaning
an additional item or piece of information added at the end of a document or book
Example
The report included an addendum with updated statistics.
El informe incluía un adenda con estadísticas actualizadas.
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 noun /əˈzeɪ.li.ə/

azalea

azalea
Meaning
a flowering shrub with brightly colored blooms, often grown ornamentally
Example
The garden was full of blooming azaleas in spring.
El jardín estaba lleno de azaleas floreciendo en primavera.
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 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 verb /əˈbrɪdʒ/

abridge

abreviar
Meaning
to shorten a text without losing its meaning
Example
The editor decided to abridge the long novel for young readers.
El editor decidió abreviar la larga novela para los jóvenes lectores.
C2 noun /ˈæntɪk/

antic

payasada
Meaning
a playful, funny, or silly act or gesture
Example
The children laughed at the clown’s antics.
Los niños se rieron de las payasadas del payaso.
C2 verb /əkˈsiːd/

accede

acceder
Meaning
to agree to a request, proposal, or demand; to assume an office or position
Example
The government finally acceded to the demands of the protesters.
El gobierno finalmente accedió a las demandas de los manifestantes.
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 noun /ˈæntɪˌtʃeɪmbər/

antechamber

salita de entrada
Meaning
a small room serving as an entry to a larger one
Example
The guests waited in the antechamber before being admitted to the hall.
Los invitados esperaron en la salita de entrada antes de ser admitidos al salón.
C2 noun /əˌɡlɒməˈreɪʃən/

agglomeration

aglomeración
Meaning
A mass or collection of things, sometimes clustered together.
Example
The city is an agglomeration of diverse cultures and communities.
La ciudad es una aglomeración de diversas culturas y comunidades.
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 adjective, adverb /əˈbʌvˌbɔːrd/

aboveboard

Honesto y abierto
Meaning
Open and honest; without deception or trickery.
Example
The business deal was completely aboveboard.
El acuerdo de negocios fue completamente honesto y abierto.
C2 noun /ˈæpəˌθɛm/

apothegm

máxima, dicho
Meaning
A short, witty, and instructive saying or maxim.
Example
His speech was filled with apothegms about life and success.
Su discurso estaba lleno de máximas sobre la vida y el éxito.
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 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 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 /ˈɔːldərmənʃɪp/

aldermanship

cargo de concejal
Meaning
The office, position, or dignity of an alderman.
Example
He was honored with aldermanship after years of service.
Fue honrado con el cargo de concejal después de años de servicio.
C2 noun /ˌæv.oʊˈkeɪ.ʃən/

avocation

afición
Meaning
a hobby or minor occupation pursued in addition to one's main work
Example
Painting is his avocation after office hours.
La pintura es su afición después del horario de oficina.
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 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 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 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 verb /əˈnɔɪnt/

anoint

ungir, consagrar
Meaning
To smear or rub with oil, often as part of a religious ceremony or as a sign of consecration.
Example
The priest anointed the king with holy oil.
El sacerdote ungió al rey con aceite santo.
C2 adjective /ˌænθrəpəˈmɔːrfɪk/

anthropomorphic

antropomórfico
Meaning
attributing human characteristics to non-human things, like animals or objects
Example
The cartoon shows an anthropomorphic cat walking on two legs.
El dibujo animado muestra un gato antropomórfico caminando sobre dos patas.
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 noun /ˈɔːriˌoʊl/

aureole

aureola
Meaning
A halo or radiance surrounding the head or body, often in religious art.
Example
The painting showed the saint with an aureole around his head.
La pintura mostró al santo con un aureól alrededor de su cabeza.
C2 noun /ˌæpəˈleɪʃən/

appellation

título / nombre
Meaning
a name or title
Example
The city has earned the appellation 'The Big Apple'.
La ciudad ha ganado el título 'La Gran Manzana'.
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 /əˌbɑː.məˈneɪ.ʃən/

abomination

abominación
Meaning
a thing that causes disgust or hatred
Example
Slavery was considered an abomination.
La esclavitud fue considerada una abominación.
C2 noun /əˈkʌmpənɪst/

accompanist

acompañante
Meaning
A person who plays a musical instrument to support a singer or another musician.
Example
The pianist served as the accompanist for the singer during the concert.
El pianista actuó como acompañante del cantante durante el concierto.
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 adverb /əˈsɪdʒuəsli/

assiduously

asiduamente
Meaning
with great care and persistence
Example
He worked assiduously to complete the project before the deadline.
Trabajó asiduamente para completar el proyecto antes de la fecha límite.
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 noun /ˈɔːlmənæk/

almanac

almanaque
Meaning
An annual publication containing calendars, weather forecasts, astronomical data, and other useful information.
Example
He consulted the almanac to check the phases of the moon.
Consultó el almanaque para verificar las fases de la luna.
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 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 /ˌæpəˈzɪʃən/

apposition

aposición (gramática paralela)
Meaning
a grammatical construction in which two elements are placed side by side, with one explaining the other
Example
In the phrase 'my friend John,' the word 'John' is in apposition to 'my friend.'
En la frase 'mi amigo Juan', la palabra 'Juan' está en aposición a 'mi amigo'.
C2 adverb /əˈskæns/

askance

despectivamente
Meaning
With suspicion, mistrust, or disapproval.
Example
She looked askance at his unusual proposal.
Ella miró despectivamente su propuesta inusual.
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 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 /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 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 /əˈsiːtɪk/

acetic

ácetico
Meaning
relating to or containing acetic acid; sour or vinegary in taste or smell
Example
The acetic smell of vinegar filled the kitchen.
El olor acético del vinagre llenó la cocina.
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 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 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 /ˌæpərˈteɪn/

appertain

pertenecer
Meaning
to relate to or be connected with something
Example
The rules only appertain to members of the club.
Las reglas solo pertenecen a los miembros del club.
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 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, adjective /ˌæntiˌspæzˈmɒdɪk/

antispasmodic

antiespasmódico
Meaning
A drug or agent that relieves or prevents muscle spasms.
Example
The doctor prescribed an antispasmodic to ease the pain.
El doctor recetó un antiespasmódico para aliviar el dolor.
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 /ˌæk.si.əˈmæt.ɪk/

axiomatic

autoevidente, obviamente cierto sin necesidad de prueba
Meaning
Self-evident, obviously true without need for proof
Example
It is axiomatic that hard work leads to success.
Es autoevidente que el trabajo duro conduce al éxito.
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 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 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 noun /ˈænsɛstrɪs/

ancestress

ancestro femenina
Meaning
a female ancestor; a woman from whom one is descended
Example
She discovered that her ancestress came from a small village in Bengal.
Descubrió que su ancestro femenina provenía de un pequeño pueblo de Bengala.
C2 noun /ˈæn.oʊd/

anode

electrodo positivo
Meaning
The positive electrode in a device such as a battery, where current flows into a polarized electrical device.
Example
The anode of the battery was corroded after long use.
El electrodo positivo de la batería se corroyó después de un uso prolongado.
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 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 adjective /əˈmɔːrfəs/

amorphous

amórfico
Meaning
Lacking a clear shape or form; without a defined structure.
Example
The plan remained amorphous and lacked concrete details.
El plan permaneció amorfo y carecía de detalles concretos.
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 adjective /ˈæməˌtɔːri/

amatory

relacionado con el amor
Meaning
Relating to or expressing sexual love.
Example
The poet’s verses were filled with amatory themes.
Los versos del poeta estaban llenos de temas amorosos.
C2 adjective /ˈæprəbəˌtɔːri/

approbatory

aprobatorio
Meaning
expressing approval or praise
Example
The teacher gave an approbatory nod after reading the essay.
El maestro asintió con la cabeza de manera aprobatoria después de leer el ensayo.
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 noun /ˈæf.ə.rɪ.zəm/

aphorism

aforismo
Meaning
a short, witty saying that expresses a general truth or principle
Example
He began his speech with an aphorism about life and success.
Él comenzó su discurso con un aforismo sobre la vida y el éxito.
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 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 verb /əˈvʌls/

avulse

arrancar
Meaning
to tear away or separate forcibly, especially in medical or geological contexts
Example
The surgeon had to avulse the damaged tissue during the operation.
El cirujano tuvo que arrancar el tejido dañado durante la operación.
C2 noun /əˌnʌn.siˈeɪ.ʃən/

annunciation

anuncio, buena nueva
Meaning
The announcement of something; in Christianity, the announcement by the angel Gabriel to Mary that she would conceive Jesus.
Example
The church celebrated the Feast of the Annunciation with a special service.
La iglesia celebró la fiesta de la Anunciación con un servicio especial.
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 adjective /æmˈbroʊʒiəl/

ambrosial

ambrosial
Meaning
Exceptionally pleasing to taste or smell; divine.
Example
The aroma of freshly baked bread was simply ambrosial.
El aroma del pan recién horneado era simplemente ambrosial.
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 /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 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 verb /ˌæntɪˈsiːd/

antecede

preceder
Meaning
to come before in time or order
Example
A short introduction usually antecedes the main text.
Una introducción corta generalmente antecede al texto principal.
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 noun /ˈændaɪərn/

andiron

soporte de metal para madera
Meaning
a metal support used in a fireplace to hold logs
Example
The logs rested on the andirons in the old fireplace.
Los troncos descansaban sobre los ándiros en la vieja chimenea.
C2 adverb /əˈθwɔːrt/

athwart

de forma transversal, en oposición
Meaning
Across or in opposition to something.
Example
A fallen tree lay athwart the road, blocking traffic.
Un árbol caído yacía de forma transversal en la carretera, bloqueando el tráfico.
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 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 /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 adjective /ˌæntɪˈθɛtɪkəl/

antithetical

antitético
Meaning
Directly opposed or contrasted; mutually incompatible.
Example
His views were antithetical to the values of the organization.
Sus puntos de vista eran antitéticos a los valores de la organización.
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 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 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 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 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 /ˈɛərəˌstæt/

aerostat

aerostato
Meaning
A lighter-than-air craft, such as a balloon, that is lifted by gas.
Example
The military used an aerostat for surveillance over the border.
El ejército usó un aerostato para vigilancia sobre la frontera.
C2 noun /əˈkjuːtnəs/

acuteness

agudeza; intensidad
Meaning
sharpness of mind or senses; severity or intensity of a condition
Example
Her acuteness allowed her to notice details others missed.
Su agudeza le permitió notar detalles que otros pasaron por alto.
C2 noun /ˈæmpərˌsænd/

ampersand

ampersand
Meaning
The symbol '&' used to represent the word 'and'.
Example
Use an ampersand instead of writing the word 'and' in the company name.
Usa un ampersand en lugar de escribir la palabra 'y' en el nombre de la empresa.
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 adjective /ˌæntɪdəˈluːviən/

antediluvian

anticuado
Meaning
extremely old-fashioned; belonging to the time before the biblical flood
Example
His views on women are positively antediluvian.
Sus opiniones sobre las mujeres son positivamente anticuadas.
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 adjective /əˈsɪdjʊləs/

acidulous

ligeramente ácido o amargo
Meaning
slightly sour or sharp in taste or manner
Example
The critic wrote an acidulous review of the movie.
El crítico escribió una reseña ácida de la película.
C2 noun /ˈænɪməs/

animus

animosidad / propósito
Meaning
A strong feeling of hostility; motivation or purpose behind an action.
Example
His speech was driven by animus against the policy.
Su discurso fue impulsado por animosidad contra la política.
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 /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 noun /ˈæn.dʒi.əʊ.plæs.ti/

angioplasty

procedimiento médico para abrir vasos sanguíneos bloqueados o estrechados que suministran sangre al corazón
Meaning
A medical procedure to open blocked or narrowed blood vessels that supply blood to the heart.
Example
Angioplasty is now safer with robotic assistance.
La angioplastia ahora es más segura con asistencia robótica.
C2 noun /ˈækmi/

acme

cima
Meaning
the highest point of achievement or excellence
Example
Winning the award was the acme of his career.
Ganar el premio fue la cima de su carrera.
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 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 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 /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 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 /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 verb /ˈæntɪkweɪt/

antiquate

antiquear
Meaning
To make something old-fashioned or obsolete.
Example
The rise of digital cameras antiquated traditional film photography.
El auge de las cámaras digitales dejó obsoleta la fotografía tradicional en película.
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 /ˌæɡ.rəˈdeɪ.ʃən/

aggradation

proceso de construcción de tierra por depósito de sedimentos
Meaning
The process of land being built up by sediment deposition.
Example
Aggradation helps in the natural expansion of riverbanks.
La aggradación ayuda en la expansión natural de las orillas de los ríos.
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 /ænˈtɪpədiːz/

antipodes

antípodas
Meaning
places on opposite sides of the Earth; also refers to things that are direct opposites
Example
Australia and Britain are often considered antipodes of each other.
Australia y Gran Bretaña suelen considerarse antípodas entre sí.
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 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.