albino
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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 /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 /ˌæk.rəˈfoʊ.bi.ə/

acrophobia

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

abstemious

abstemio
Meaning
not allowing oneself much food or drink; marked by moderation
Example
She lived an abstemious life, avoiding all luxuries.
Ella vivió una vida abstemio, evitando todos los lujos.
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 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 /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 /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 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 /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 /ˈædɪˌpoʊs/

adipose

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

acquiescence

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

absolution

absolución
Meaning
formal release from guilt, obligation, or punishment
Example
The priest granted him absolution for his sins.
El sacerdote le concedió la absolución por sus pecados.
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 /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 /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 /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 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 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 /ˌæktʃuˈɛəriəl/

actuarial

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

attenuate

atenuar
Meaning
To reduce the force, effect, or value of something; to make weak or thin.
Example
The medicine helps attenuate the pain.
La medicina ayuda a atenuar el dolor.
C2 noun /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 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 verb /æbˈdʒʊər/

abjure

abjurar
Meaning
to formally renounce or give up a belief, cause, or claim
Example
He abjured his allegiance to the old regime.
Él renunció a su lealtad al viejo régimen.
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 /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 /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 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 /ˈæpəˌlɔːɡ/

apologue

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

annalist

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

arbor

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

archangel

arcángel
Meaning
A high-ranking angel, often considered a chief messenger or leader among angels.
Example
Michael is often depicted as the most powerful archangel.
Miguel suele ser representado como el arcángel más poderoso.
C2 noun əˈdʒuː.dɪ.kə.tɪv ˈbɒd.i

adjudicative body

organismo adjudicativo
Meaning
An official organization that has the authority to judge disputes and make decisions.
Example
The adjudicative body deliberated on the case.
El organismo adjudicativo deliberó sobre el caso.
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 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 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 /ˌætəlˈjeɪ/

atelier

taller (estudio de un artista o diseñador)
Meaning
A workshop or studio, especially for an artist or designer.
Example
The painter invited us to his atelier to view his new collection.
El pintor nos invitó a su taller para ver su nueva colección.
C2 adjective /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 adjective /ˈæpəzɪt/

apposite

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

assay

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

animadvert

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

alder

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

anointment

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

arrogate

apropiarse injustamente
Meaning
To claim or take something without justification.
Example
The dictator arrogated all powers to himself.
El dictador se apropió injustamente de todos los poderes para él mismo.
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 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 /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 /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 /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 /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 /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 verb /əˈbɑː.mə.neɪt/

abominate

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

arboreal

relativo a los árboles
Meaning
Relating to trees or living in trees; tree-dwelling.
Example
Monkeys are arboreal animals that spend most of their time in trees.
Los monos son animales arbóreos que pasan la mayor parte de su tiempo en los árboles.
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 noun /ˈeɪʒən siː bæs/

Asian sea bass

lubina asiática
Meaning
a large predatory fish found in coastal waters and estuaries of the Indo-Pacific region, prized for its white meat
Example
Asian sea bass is highly valued in aquaculture for its fast growth.
La lubina asiática es muy valorada en la acuicultura por su rápido crecimiento.
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 /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 /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 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 verb /ˈæmbl/

amble

caminar despacio
Meaning
To walk at a slow, relaxed pace.
Example
They amble through the park on Sunday mornings.
Ellos caminan despacio por el parque los domingos por la mañana.
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 adverb /əˈsʌndər/

asunder

en pedazos
Meaning
into separate parts; apart
Example
The ancient empire was torn asunder by war.
El antiguo imperio fue destrozado por la guerra.
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 noun /ˈɑːm.lət/

Armlet

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

Aback

sorprendido
Meaning
by surprise; unexpectedly
Example
I was taken aback by his sudden announcement.
Me sorprendió su anuncio repentino.
C2 noun /əˈmæl.ɡəm/

amalgam

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

actuate

activar
Meaning
to put into action or motion; to motivate or activate
Example
The engineer actuated the machine with a simple switch.
El ingeniero activó la máquina con un simple interruptor.
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 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 /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 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 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 /ˈænθrəsaɪt/

anthracite

carbón duro
Meaning
A hard, shiny form of coal that burns with little smoke and a high heat value.
Example
The factory used anthracite as its primary fuel source.
La fábrica usaba antracita como su fuente primaria de combustible.
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 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 adjective /ˌækwiˈɛsənt/

acquiescent

sumiso
Meaning
ready to accept something without protest, or to do what someone else wants
Example
He gave an acquiescent smile and agreed to the plan.
Él dio una sonrisa sumisa y aceptó el plan.
C2 verb /əˈvaʊtʃ/

avouch

afirmar
Meaning
to affirm or assert something as true
Example
He avouched his innocence before the judge.
Él afirmó su inocencia ante el juez.
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 /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 /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 /ˌædjʊˈleɪʃən/

adulation

adulación excesiva
Meaning
excessive admiration or flattery
Example
The singer enjoyed the adulation of her fans.
La cantante disfrutó de la adulación de sus fans.
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 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 /ˈeɪ.viˌɛr.i/

aviary

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