acrimonious
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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 /ˈænɪ siːd/

Ani seed

anís
Meaning
Small aromatic seeds used as a spice and for medicinal purposes, with a sweet licorice-like flavor
Example
Anise seeds are often used in traditional desserts and teas.
Las semillas de anís se usan con frecuencia en postres y tés tradicionales.
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 /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 adjective /ɔːˈrɪkjʊlər/

auricular

relacionado con el oído
Meaning
Relating to the ear or hearing.
Example
The doctor used an auricular thermometer to check the patient's temperature.
El doctor usó un termómetro auricular para revisar la temperatura del paciente.
C2 noun /ˈiːdʒɪs/

aegis

protección
Meaning
The protection, backing, or support of a particular person or organization.
Example
The project was carried out under the aegis of the United Nations.
El proyecto se llevó a cabo bajo el auspicio de las Naciones Unidas.
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 /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 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 adjective /əˈfɔːrsed/

Aforesaid

mencionado anteriormente
Meaning
mentioned before; previously stated
Example
The aforesaid conditions must be met before approval.
Las condiciones mencionadas anteriormente deben cumplirse antes de la aprobación.
C2 adjective /ˌænθrəpəˈmɔːrfəs/

anthropomorphous

antropomórfico
Meaning
having the form or attributes of a human
Example
The statue had an anthropomorphous shape resembling a human.
La estatua tenía una forma antropomórfica que se parecía a un ser humano.
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 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 noun /əkˈsɛʃən/

accession

acceso al trono / aceptación de un tratado
Meaning
the attainment of a position of rank or power, especially a monarch or president; the formal acceptance of an agreement or treaty
Example
The king's accession to the throne was celebrated with great ceremony.
La ascensión del rey al trono fue celebrada con gran ceremonia.
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 /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 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 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 /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 /əˈkwɪtəns/

acquittance

recibo de pago
Meaning
a written receipt acknowledging payment or discharge of a debt
Example
He demanded an acquittance after paying the loan.
Él exigió un recibo de pago después de pagar el préstamo.
C2 noun /əˈspær.ə.ɡəs biːn/

Asparagus bean

judía de espárragos
Meaning
a long, thin green vegetable pod that grows on vines; also known as yard-long bean
Example
The asparagus bean grows up to three feet long and is commonly used in Asian cooking.
La judía de espárragos crece hasta tres pies de largo y se utiliza comúnmente en la cocina asiática.
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 verb /əˈreɪn/

arraign

procesar
Meaning
to formally accuse someone in a court of law and ask them to respond to the charges
Example
The suspect was arraigned before the judge this morning.
El sospechoso fue procesado ante el juez esta mañana.
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 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 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 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 /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 /ˌɔːltərˈkeɪʃən/

altercation

altercado, pelea
Meaning
a noisy argument or quarrel
Example
There was a brief altercation between the two drivers.
Hubo una breve altercación entre los dos conductores.
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 /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 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 /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 /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 /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 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 /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 /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 /ˈæpəfθɛm/

apophthegm

dicho o refrán corto, ingenioso y educativo
Meaning
A short, pithy, and instructive saying or maxim.
Example
She always had a witty apophthegm to share at meetings.
Ella siempre tenía un apofema ingenioso para compartir en las reuniones.
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 /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 /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 adjective /əˈsɜːrbɪk/

acerbic

ácido
Meaning
sharp, harsh, or bitter in tone or taste
Example
His acerbic comments offended many people in the meeting.
Sus comentarios ácidos ofendieron a muchas personas en la reunión.
C2 noun /ˈɛəri/

aerie

nido de águila
Meaning
A large nest of a bird of prey, especially an eagle, typically built high in a tree or on a cliff.
Example
The eagle built its aerie on the high cliff.
El águila construyó su nido en el alto acantilado
C2 adjective /ˈæn.ə.daɪn/

anodyne

inofensivo, que alivia el dolor
Meaning
Not likely to cause offense; bland or harmless. Also refers to something that relieves pain.
Example
The speaker’s anodyne remarks avoided controversy.
Los comentarios anodinos del orador evitaron la controversia.
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 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 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 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 /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 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 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 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 adjective /əˈluːviəl/

alluvial

aluvial
Meaning
Relating to or derived from alluvium (loose soil or sediment deposited by rivers).
Example
The farmers cultivate crops on the fertile alluvial plains.
Los agricultores cultivan cultivos en las fértiles llanuras aluviales.
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 verb /əˈbæʃ/

abash

avergonzar
Meaning
to make someone feel embarrassed or ashamed
Example
Her sudden question seemed to abash him.
Su repentina pregunta pareció avergonzarlo.
C2 noun /əˈdjuː/

adieu

adiós
Meaning
A farewell or goodbye, often used in a formal or poetic sense.
Example
She bid her friends adieu before leaving for France.
Ella se despidió de sus amigos antes de partir hacia Francia.
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 adjective /ˌæd.vɛnˈtɪʃ.əs/

adventitious

accidental
Meaning
Happening by chance or accident, not planned.
Example
His success was partly due to adventitious circumstances.
Su éxito se debió en parte a circunstancias accidentales.
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 /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 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 /əˈfleɪtəs/

afflatus

inspiración divina
Meaning
a sudden divine inspiration or creative impulse
Example
The poet wrote the verses under a sudden afflatus of inspiration.
El poeta escribió los versos bajo una súbita inspiración divina.
C2 noun /ˌɔːskʌlˈteɪʃən/

auscultation

auscultación
Meaning
The act of listening to internal sounds of the body, typically using a stethoscope.
Example
The doctor performed auscultation to check the patient’s lungs.
El médico realizó la auscultación para revisar los pulmones del paciente.
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 /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 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 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 /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 /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 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 /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 /ˈævərɪs/

avarice

avaricia
Meaning
extreme greed for wealth or material gain
Example
His avarice led him to exploit his workers.
Su avaricia lo llevó a explotar a sus trabajadores.
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 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 /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 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 /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 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 /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 /ˈɑːr.bɪ.trɑːʒ/

arbitrage

arbitraje
Meaning
The simultaneous buying and selling of securities in different markets to take advantage of differing prices.
Example
Investors use arbitrage to make profits in global markets.
Los inversionistas utilizan el arbitraje para obtener ganancias en los mercados globales.
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 adverb /əˈbæk/

Aback

sorprendido
Meaning
by surprise; unexpectedly
Example
I was taken aback by his sudden announcement.
Me sorprendió su anuncio repentino.
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 /əˈreɪ.bi.ən ˈdʒæz.mɪn/

Arabian Jasmine

jazmín árabe
Meaning
A fragrant white flower native to South and Southeast Asia, commonly used in perfumes and religious ceremonies
Example
The Arabian jasmine filled the garden with its sweet fragrance.
El jazmín árabe llenó el jardín con su dulce fragancia.
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, 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 adjective /əˈɡeɪp/ or /əˈɡɑːp/

agape

boquiabierto
Meaning
With the mouth wide open in surprise or wonder.
Example
She stood agape at the breathtaking view.
Ella se quedó boquiabierta ante la vista impresionante.
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 /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 /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 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 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 /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 /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 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 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 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 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 /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 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 /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 noun /æmˈbroʊʒə/

ambrosia

ambrosía
Meaning
The food of the gods in classical mythology; something extremely pleasing to taste or smell.
Example
The dessert was so delicious that it tasted like ambrosia.
El postre estaba tan delicioso que sabía a ambrosía.
C2 noun /ˈæktʃuˌɛri/

actuary

actuario
Meaning
A professional who analyzes financial risk using mathematics, statistics, and financial theory, especially in insurance and pensions.
Example
The actuary calculated the risk before finalizing the insurance policy.
El actuario calculó el riesgo antes de finalizar la póliza de seguro.
C2 noun əˌklaɪ.mə.tɪˈzeɪ.ʃən

acclimatization

aclimatación
Meaning
The process of adapting to a new environment or condition.
Example
The hikers needed time for acclimatization to high altitudes.
Los excursionistas necesitaron tiempo para la aclimatación a grandes altitudes.
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 /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/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 /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 /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 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 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 (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 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 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 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 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 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 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 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.