auricle
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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 /ænˈtɪlədʒi/

antilogy

antilogía
Meaning
A contradiction in terms or ideas; inconsistency in speech or writing.
Example
The politician's statement was criticized for its antilogy.
La declaración del político fue criticada por su antilogía.
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 /əˈpɒfəsɪs/

apophasis

apofasis
Meaning
A rhetorical device where the speaker brings up a subject by denying it or pretending to pass over it.
Example
The politician used apophasis by saying, 'I won’t even mention my opponent’s scandals.'
El político usó la apofasis al decir: 'Ni siquiera mencionaré los escándalos de mi oponente'.
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 noun /əˈkriːʃən/

accretion

acreción
Meaning
The process of growth or increase, typically by the gradual accumulation of additional layers or matter.
Example
The accretion of wealth allowed him to invest in various projects.
La acumulación de riqueza le permitió invertir en varios proyectos.
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, 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 /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 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 /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 verb /ˈɔːltərˌkeɪt/

altercate

discutir
Meaning
to argue or dispute angrily or noisily
Example
The neighbors began to altercate over the boundary wall.
Los vecinos comenzaron a discutir sobre la pared del límite.
C2 verb /ˈɔːɡər/

augur

augurar
Meaning
To be a sign of something to come; to predict or foretell.
Example
Dark clouds augur a coming storm.
Las nubes oscuras auguran una tormenta que se avecina.
C2 verb /əˈɡlɒməˌreɪt/

agglomerate

aglutinar
Meaning
To collect or form into a mass or group.
Example
The dust particles began to agglomerate into larger clusters.
Las partículas de polvo comenzaron a aglomerarse en grupos más grandes.
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 /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 adjective /ˈæpəˌleɪt/

appellate

relacionado con apelaciones
Meaning
relating to appeals in a court of law
Example
The case was taken to an appellate court.
El caso fue llevado a un tribunal de apelaciones.
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 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 /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 /ˈæʒər/

azure

azur
Meaning
A bright blue color like that of a clear sky.
Example
The clear sky was painted in a deep shade of azure.
El cielo claro fue pintado con un profundo tono de azul.
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 /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 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 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 /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 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 /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 /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 /əbˈhɔːr/

abhor

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

acquiesce

aceptar sin protestar
Meaning
to accept something reluctantly but without protest
Example
She decided to acquiesce to her parents’ wishes.
Ella decidió aceptar sin protestar los deseos de sus padres.
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 /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 verb /ˈæntɪdeɪt/

antedate

anteceder
Meaning
to be earlier in time; to assign a date earlier than the actual one
Example
The manuscript antedates the modern printing press.
El manuscrito es anterior a la prensa moderna de impresión.
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 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 /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 adjective /ˈeɪ.li.ə.nə.bəl/

alienable

transferible
Meaning
Able to be transferred or surrendered, usually referring to rights or property.
Example
Property rights are alienable and can be sold or transferred.
Los derechos de propiedad son transferibles y pueden ser vendidos o transferidos.
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 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 noun /əˈvɪdəti/

avidity

avidez
Meaning
extreme eagerness or enthusiasm
Example
He accepted the offer with avidity.
Aceptó la oferta con avidez.
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 /ˈæltruɪst/

altruist

altruista
Meaning
a person who has an unselfish concern for the welfare of others
Example
He is an altruist who always puts others' needs before his own.
Él es un altruista que siempre pone las necesidades de los demás antes que las suyas propias.
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 /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 /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 /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 verb /əˈsweɪdʒ/

assuage

aliviar
Meaning
To make an unpleasant feeling less intense; to ease or relieve.
Example
The kind words helped assuage her anxiety.
Las palabras amables ayudaron a aliviar su ansiedad.
C2 adjective /əˈpɒ.krɪ.fəl/

apocryphal

dudoso
Meaning
Of doubtful authenticity, though widely circulated as true.
Example
The story about him saving the village is probably apocryphal.
La historia de él salvando el pueblo probablemente es dudosa.
C2 adjective /ˌæn.θrə.pəˈdʒen.ɪk/

anthropogenic

antropogénico
Meaning
Originating in human activity; caused by humans.
Example
Climate change is largely due to anthropogenic activities.
El cambio climático se debe en gran parte a actividades antropogénicas.
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 noun /əˈfreɪ/

affray

pelea pública
Meaning
A public fight or noisy disturbance that causes alarm.
Example
The police were called to break up an affray outside the stadium.
La policía fue llamada para romper una pelea afuera del estadio.
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 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 /ˈænti/

ante

apuesta inicial en un juego
Meaning
a stake put up by a player in poker or similar games before receiving cards; also used figuratively to mean an initial investment or contribution
Example
Each player placed an ante before the game began.
Cada jugador colocó una ante antes de que comenzara el juego.
C2 noun /ænˈtɪfəni/

antiphony

antífona
Meaning
a form of music in which two or more groups or choirs sing alternately in response to each other
Example
The cathedral's architecture was designed to enhance the effect of antiphony.
La arquitectura de la catedral fue diseñada para mejorar el efecto de la antífona.
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 /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 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 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 /æbˈsɪʒən/

abscission

caída de hojas
Meaning
The natural detachment of parts of a plant, typically leaves or fruit.
Example
The autumn season is marked by the abscission of leaves from trees.
La temporada de otoño se caracteriza por la caída de hojas de los árboles.
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 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 /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 /ænˈtɪpəθaɪz/

antipathize

antipatizar
Meaning
to feel or express a strong dislike or aversion toward something or someone
Example
He seemed to antipathize with the new management's approach.
Parece que él antipatiza con el enfoque de la nueva administración.
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 /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 /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 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 /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 verb /əˈɡræn.daɪz/

aggrandize

engrandecer
Meaning
To increase the power, wealth, or importance of a person or entity.
Example
The politician tried to aggrandize himself through exaggerated claims.
El político trató de engrandecerse a sí mismo a través de afirmaciones exageradas.
C2 verb /ˈæd.l̩/

addle

confundir
Meaning
To confuse or muddle someone’s mind.
Example
The complicated instructions only served to addle him.
Las instrucciones complicadas solo sirvieron para confundirme.
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 /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 /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 /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 noun /ˌæntiˈsaɪkloʊn/

anticyclone

anticiclón
Meaning
A weather system with high atmospheric pressure at its center, usually bringing calm and clear conditions.
Example
An anticyclone brought sunny weather across the region.
Un anticiclón trajo clima soleado en toda la región.
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 /ˈænɪməlˌkjuːl/

animalcule

animalcule
Meaning
A microscopic animal, especially a protozoan or other minute organism.
Example
The scientist observed an animalcule moving under the microscope.
El científico observó un animalcule moviéndose bajo el microscopio.
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 /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 /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 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 /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 /ˈɑːrɡoʊ/

argot

jerga especializada
Meaning
the specialized vocabulary or jargon of a particular group, especially one with a common interest or occupation
Example
The thieves communicated in an argot that outsiders could not understand.
Los ladrones se comunicaron en un argot que los forasteros no pudieron entender.
C2 noun /ˌɛərəˈstætɪks/

aerostatics

aerostática
Meaning
The branch of physics that deals with the equilibrium of air and gases and the forces acting on bodies in them.
Example
Aerostatics is essential for understanding how balloons float.
La aerostática es esencial para entender cómo flotan los globos.
C2 verb /əˈdʒʌdʒ/

adjudge

adjudicar
Meaning
to consider or declare officially in a legal or formal manner
Example
He was adjudged guilty by the court.
Fue declarado culpable por el tribunal.
C2 noun ˌæɡ.roʊ.iˈkɒl.ə.dʒi

agroecology

agroecología
Meaning
A scientific discipline that studies agricultural systems by applying ecological concepts and principles.
Example
Agroecology promotes eco-friendly farming.
La agroecología promueve la agricultura ecológica.
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 noun /əˈplɒm/

aplomb

aplomo
Meaning
Complete and confident self-assurance or poise.
Example
She handled the difficult questions with aplomb.
Ella manejó las preguntas difíciles con aplomo.
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 noun ˌæɡ.roʊˈiː.koʊˌsɪs.təm

agroecosystem

agroecosistema
Meaning
An ecological system centered on agricultural activities and processes.
Example
A healthy agroecosystem improves soil fertility.
Un agroecosistema saludable mejora la fertilidad del suelo.
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 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 /ˈæntɪkwɛri/

antiquary

antiquario
Meaning
A person who studies, collects, or deals in antiques or ancient objects.
Example
The antiquary spent years collecting rare manuscripts from the medieval period.
El antiquario pasó años recolectando manuscritos raros del período medieval.
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 /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 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 /əˈdʌltərənt/

adulterant

adulterante
Meaning
a substance added to something else, often food or drink, to reduce its quality or strength
Example
The laboratory found an adulterant in the milk samples.
El laboratorio encontró un adulterante en las muestras de leche.
C2 adjective /ˈæsənənt/

assonant

asonante
Meaning
Having or characterized by assonance; repeating similar vowel sounds.
Example
The poem is filled with assonant words that create a musical rhythm.
El poema está lleno de palabras asonantes que crean un ritmo musical.
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 /ˈɔːspɪs/

auspice

augurio, patrocinio
Meaning
A sign, omen, or divine token; also refers to protection or support.
Example
The project was launched under the auspice of the government.
El proyecto se lanzó bajo el auspicio del gobierno.
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 /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 /əbˈhɒrəns/

abhorrence

abominación
Meaning
a feeling of strong disgust or hatred
Example
He expressed his abhorrence of racial discrimination.
Expresó su abominación hacia la discriminación racial.
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 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 verb /əˈɡriːv/

aggrieve

agraviar
Meaning
to cause distress or make someone feel resentful
Example
She felt aggrieved by the unfair decision.
Ella se sintió agraviada por la decisión injusta.
C2 verb /əˈvaʊ/

avow

declarar abiertamente
Meaning
to openly declare or admit something, often publicly and firmly
Example
He avowed his loyalty to the cause without hesitation.
Él declaró abiertamente su lealtad a la causa sin dudar.
C2 verb /əˈfaɪəns/

affiance

prometerse
Meaning
to promise or pledge marriage; to formally engage
Example
They decided to affiance after years of friendship.
Decidieron prometerse después de años de amistad.
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 /ˈɑːrbərɪˌkʌltʃər/

arboriculture

arboricultura
Meaning
the cultivation and management of trees and shrubs
Example
He studied arboriculture to improve urban green spaces.
Estudió arboricultura para mejorar los espacios verdes urbanos.
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 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.