convalesce
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C2 verb /ˌkɒnvəˈlɛs/

convalesce

recuperarse, recuperar salud y fuerza después de una enfermedad o tratamiento médico
Meaning
to recover health and strength after illness or medical treatment
Example
After the surgery, she spent several weeks convalescing at home.
Después de la cirugía, pasó varias semanas convaleciendo en casa.
C2 noun /dɪˈprævɪti/

depravity

depravación
Meaning
moral corruption; wickedness
Example
The film portrays the moral depravity of a corrupt society.
La película retrata la depravación moral de una sociedad corrupta.
C2 noun /ˈvaɪnəri/

vinery

bodega de vino
Meaning
A place where vines are cultivated, especially a vineyard or greenhouse for vines.
Example
The old vinery was filled with grapevines.
La vieja bodega de vino estaba llena de vides.
C2 noun /daɪˈvʌldʒəns/

divulgence

divulgación
Meaning
the act of revealing or disclosing something secret or private
Example
The divulgence of company secrets caused a major scandal.
La divulgación de secretos de la empresa causó un gran escándalo.
C2 adjective /prəˈpɪʃəs/

propitious

propicio
Meaning
giving or indicating a good chance of success; favorable
Example
The sunny weather was a propitious start to the picnic.
El clima soleado fue un comienzo propicio para el picnic.
C2 noun /ɡleɪd/

glade

claros en el bosque
Meaning
An open space in a forest or woods.
Example
They rested in a sunny glade after their long hike.
Descansaron en un claro soleado después de su largo paseo.
C2 adjective /fəˈsiːʃəs/

facetious

humerístico
Meaning
Treating serious issues with deliberately inappropriate humor
Example
He was being facetious when he said he wanted to live on the moon.
Estaba siendo humerístico cuando dijo que quería vivir en la luna.
C2 noun /ˈæstər/

Aster

flor de aster
Meaning
a flowering plant with daisy-like flowers that typically bloom in fall
Example
The purple asters bloomed beautifully in the autumn garden.
Los ásteres morados florecieron hermosamente en el jardín de otoño.
C2 noun, verb /ˈhæmstrɪŋ/

hamstring

tendón en la parte posterior del muslo; como verbo, dificultar o restringir severamente la efectividad de alguien o algo
Meaning
a tendon at the back of the thigh; as a verb, to cripple or severely restrict the effectiveness of someone or something.
Example
Budget cuts hamstrung the organization’s plans.
Los recortes presupuestarios han debilitado los planes de la organización.
C2 noun /ˈtoʊ.di/

Toady

adulador
Meaning
a person who acts obsequiously to gain favor; a sycophant
Example
He was known as a toady who always agreed with the boss.
Él era conocido como un adulador que siempre estaba de acuerdo con el jefe.
C2 noun /fləˈtɪlə/

flotilla

flotilla
Meaning
A small fleet of ships or boats operating together.
Example
A flotilla of fishing boats left the harbor at dawn.
Una flotilla de barcos pesqueros salió del puerto al amanecer.
C2 adjective /ˈflæs.ɪd/

Flaccid

flácido; flojo; colapsado;
Meaning
soft and limp; lacking firmness; drooping
Example
The plant's leaves became flaccid after days without water.
Las hojas de la planta se volvieron flácidas después de varios días sin agua.
C2 adjective /ˌsuːdəˈrɪfɪk/

sudorific

sudorífico
Meaning
causing or increasing sweating
Example
The doctor prescribed a sudorific drug to help reduce the fever.
El doctor recetó un medicamento sudorífico para reducir la fiebre.
C2 adjective /ˈpɑːrləs/

parlous

peligroso
Meaning
Full of danger or risk; precarious.
Example
The company is in a parlous financial state.
La compañía está en un estado financiero precario.
C2 verb /ɪnˈvaɪərən/

environ

rodear
Meaning
to surround or enclose; to encircle
Example
Mountains environ the small valley.
Las montañas rodean el pequeño valle.
C2 adjective /ˌɔːfˈkiː/

off-key

desafinado
Meaning
out of tune; not in accordance with expected standards
Example
The singer was slightly off-key during the performance.
El cantante estaba ligeramente desafinado durante la actuación.
C2 noun /ˌvælədɪkˈtɔːriən/

valedictorian

mejor estudiante
Meaning
The student with the highest academic achievements in a graduating class, often chosen to give the farewell speech.
Example
She was honored as the valedictorian of her class.
Fue honrada como la mejor estudiante de su clase.
C2 noun ˈɔː.tɑː.ki

autarky

autarquía, autosuficiencia
Meaning
Economic independence or self-sufficiency; a policy of establishing a self-sufficient national economy.
Example
Some nations aim for autarky to reduce reliance on imports.
Algunas naciones buscan la autarquía para reducir la dependencia de las importaciones.
C2 noun /ˈaɪdlər/

idler

holgazán
Meaning
A person who avoids work or spends time lazily.
Example
He was known as an idler who wasted his days.
Él era conocido como un holgazán que desperdiciaba sus días.
C2 noun /ˈhɜːrmɪtɪdʒ/

hermitage

ermita
Meaning
A secluded residence or retreat, often for a hermit or religious recluse.
Example
The monk spent years in a hermitage deep in the forest.
El monje pasó años en una ermita en lo profundo del bosque.
C2 verb /bɪˈfɪt/

befit

ser apropiado para
Meaning
to be suitable for; to be appropriate to
Example
Formal attire befits the seriousness of the occasion.
La vestimenta formal es apropiada para la seriedad de la ocasión.
C2 noun /ˈrɛk.tɪ.tjuːd/

rectitude

rectitud
Meaning
Morally correct behavior or thinking; righteousness and integrity.
Example
His rectitude earned him respect in society.
Su rectitud le ganó el respeto en la sociedad.
C2 verb /koʊˈæɡjəˌleɪt/

coagulate

coagular
Meaning
to cause a liquid, especially blood, to change into a solid or semi-solid state
Example
The blood quickly coagulated after the cut.
La sangre se coaguló rápidamente después del corte.
C2 noun /hɒtʃ pɒtʃ/

Hotch potch

puchero
Meaning
A mixed dish; a hodgepodge of ingredients cooked together
Example
She made a delicious hotch potch with rice, lentils, and vegetables.
Ella preparó un delicioso hotch potch con arroz, lentejas y verduras.
C2 noun /ɪnˈdɛntʃər/

indenture

contrato de servidumbre
Meaning
A formal legal agreement, contract, or document, often relating to work or service.
Example
In the 18th century, many workers came under indenture to work overseas.
En el siglo XVIII, muchos trabajadores estuvieron bajo un contrato de servidumbre para trabajar en el extranjero.
C2 noun /prɪˈfɜːrmənt/

preferment

ascenso
Meaning
promotion or advancement in rank, position, or office
Example
He hoped for preferment in the government office.
Él esperaba un ascenso en la oficina del gobierno.
C2 adjective ˈɛr.jʊ.daɪt

erudite

erudito o sabio
Meaning
Having or showing great knowledge or learning; scholarly and intellectual.
Example
The professor's erudite lecture fascinated the students.
La conferencia erudita del profesor fascinó a los estudiantes.
C2 adjective /juːˈʒʊəriəs/

usurious

usurero
Meaning
Charging excessively high interest rates on loans.
Example
The bank was accused of offering loans at usurious rates.
El banco fue acusado de ofrecer préstamos a tasas usureras.
C2 noun /ˈreɪdɪks/

radix

base
Meaning
the base or root of something; the number on which a system of numeration is built
Example
In mathematics, the decimal system has a radix of ten.
En matemáticas, el sistema decimal tiene una base de diez.
C2 verb /ˌɛfəˈvɛs/

effervesce

efervescer
Meaning
To give off bubbles of gas; to show excitement, liveliness, or enthusiasm.
Example
The soda began to effervesce as soon as it was opened.
El refresco comenzó a efervescer tan pronto como se abrió.
C2 noun kənˌsep.tʃu.ə.laɪˈzeɪ.ʃən

conceptualization

conceptualización
Meaning
The process of forming a concept or idea; the process of developing something in the mind.
Example
The conceptualization of renewable cities is groundbreaking.
La conceptualización de ciudades renovables es innovadora.
C2 adjective /ˌʌnəˈsweɪdʒd/

unassuaged

inquieto
Meaning
Not made less intense or relieved; unrelieved.
Example
His grief remained unassuaged despite the passage of time.
Su dolor permaneció inquieto a pesar del paso del tiempo.
C2 verb /ˌdɪsɪnˈfræntʃaɪz/

disenfranchise

privar de derechos
Meaning
To deprive someone of the right to vote or other rights.
Example
The new law could disenfranchise thousands of voters.
La nueva ley podría privar de derechos a miles de votantes.
C2 noun /ˈdəʊ.lər/

dolor

dolor
Meaning
A state of great sorrow or distress.
Example
The nation was in deep dolor after the tragedy.
La nación estaba en profundo dolor después de la tragedia.
C2 noun /ˈmɛndɪkənt/

mendicant

mendigo
Meaning
a beggar; a person who lives by asking for alms
Example
The mendicant asked for food at the monastery gate.
El mendigo pidió comida en la puerta del monasterio.
C2 noun /dʒeɪp/

jape

broma, chiste
Meaning
A practical joke or humorous remark.
Example
He enjoyed a harmless jape with his friends.
Disfrutó de una broma inofensiva con sus amigos.
C2 noun /ˌsɪɡnɪfɪˈkeɪʃən/

signification

significado
Meaning
the meaning or sense conveyed by a word, action, or symbol
Example
The signification of the gesture was misunderstood.
El significado del gesto fue malinterpretado.
C2 adjective /rəˈʃɛrʃ/

recherche

exclusivo
Meaning
Rare, exotic, or obscure, often in a sophisticated or refined way.
Example
The gallery displayed many recherche artworks from unknown artists.
La galería exhibió muchas obras de arte exclusivas de artistas desconocidos.
C2 noun /ˈfʌriər/

furrier

peluquero
Meaning
A person who prepares or deals in furs.
Example
The furrier displayed fine coats in his shop.
El peluquero exhibió abrigos finos en su tienda.
C2 noun /ˈvɛrɪti/

verity

veracidad
Meaning
a true principle or belief; the state of being true
Example
The verity of his statement was confirmed by evidence.
La veracidad de su declaración fue confirmada por evidencia.
C2 adjective /spɪk/

Spick

extremadamente limpio y ordenado; inmaculado
Meaning
extremely clean and neat; immaculate
Example
The house was spick and span after the cleaning.
La casa estaba completamente limpia y ordenada después de la limpieza.
C2 noun /dɪˈsweɪʒən/

dissuasion

desacuerdo
Meaning
The act of persuading someone not to take a course of action.
Example
Her dissuasion prevented him from making a bad investment.
Su desacuerdo le impidió hacer una mala inversión.
C2 adjective /bjuːˈkɒlɪk/

bucolic

bucólico
Meaning
Relating to the pleasant aspects of the countryside and country life.
Example
They enjoyed a bucolic picnic by the river.
Ellos disfrutaron de un picnic bucólico junto al río.
C2 adjective /ˌpɛntəˈveɪlənt/

pentavalent

pentavalente
Meaning
Having a valence of five, especially in chemistry.
Example
Phosphorus can exist in a pentavalent state.
El fósforo puede existir en un estado pentavalente.
C2 noun /ˈʃɑːdənfrɔɪdə/

schadenfreude

placer derivado de la desgracia ajena
Meaning
pleasure derived from another person's misfortune
Example
He felt a sense of schadenfreude when his rival failed.
Sintió una sensación de schadenfreude cuando su rival fracasó.
C2 noun /ˈdʒɪŋɡoʊˌɪzəm/

jingoism

patriotismo extremo
Meaning
extreme patriotism expressed in aggressive foreign policy
Example
The politician's speech was filled with jingoism.
El discurso del político estaba lleno de jingoísmo.
C2 noun/verb /ɡəˈfɔː/

guffaw

gran risa
Meaning
a loud and boisterous laugh
Example
The audience guffawed at the comedian’s joke.
La audiencia se rió ruidosamente con el chiste del comediante.
C2 adjective/noun /fɪˈduː.ʃi.er.i/

fiduciary

fiduciario
Meaning
Involving trust, especially with regard to the relationship between a trustee and a beneficiary.
Example
Banks have fiduciary duties towards their clients.
Los bancos tienen deberes fiduciarios hacia sus clientes.
C2 noun /ˈtrɛntʃərmən/

trencherman

tragón
Meaning
a person who eats in a hearty or robust manner; a big eater
Example
The trencherman devoured the feast with great enthusiasm.
El tragón devoró el banquete con gran entusiasmo.
C2 adjective /ˈpɛstɪlənt/

pestilent

pestilente
Meaning
Causing or tending to cause death or destruction; harmful or pernicious.
Example
The pestilent atmosphere of the swamp made people sick.
La atmósfera pestilente del pantano hizo que la gente se enfermara.
C2 verb /ˌmɪskənˈstruː/

misconstrue

malinterpretar
Meaning
To interpret something wrongly or misunderstand the meaning.
Example
She misconstrued his silence as anger.
Ella malinterpretó su silencio como ira.
C2 adjective /ɪkˈsɛpʃənəbl/

exceptionable

objecionable
Meaning
Open to objection; causing disapproval.
Example
His rude remarks were considered exceptionable by everyone present.
Sus comentarios groseros fueron considerados objetables por todos los presentes.
C2 adjective /ˈpjʊəraɪl/

puerile

infantil
Meaning
childishly silly or immature
Example
His puerile jokes annoyed the audience.
Sus bromas infantiles molestaron al público.
C2 noun ˈdɒɡ.ɪd.nəs

doggedness

perseverancia
Meaning
Stubborn persistence in achieving something without giving up.
Example
His doggedness in pursuing his goals was inspiring.
Su perseverancia en alcanzar sus metas fue inspiradora.
C2 adjective /ˈkeəwɔːn/

careworn

agotado y preocupado
Meaning
Showing signs of worry, stress, or exhaustion.
Example
His careworn face revealed years of struggle.
Su rostro agotado revelaba años de lucha.
C2 noun /ˈkɒnk.leɪv/

conclave

conclave secreto
Meaning
a private meeting, especially a secret or important one
Example
The leaders met in a secret conclave to discuss the strategy.
Los líderes se reunieron en un conclave secreto para discutir la estrategia.
C2 noun /ˈræbəl/

Rabble

turba
Meaning
a disorderly crowd; the common people regarded as socially inferior
Example
The politician dismissed the protesters as mere rabble.
El político desestimó a los manifestantes como una simple turba.
C2 adjective /əˈprəʊ.bri.əs/

opprobrious

despectivo
Meaning
Expressing strong criticism or scorn.
Example
He made opprobrious remarks about his opponent.
Él hizo comentarios despectivos sobre su oponente.
C2 noun /ˌfɔːrɔːrdɪˈneɪʃən/

foreordination

preordenación
Meaning
the act of determining something in advance; predestination
Example
The doctrine of foreordination suggests that events are fixed by divine will.
La doctrina de la preordenación sugiere que los eventos están fijados por la voluntad divina.
C2 noun /ˈɛksplətɪv/

expletive

palabra ofensiva
Meaning
a word or phrase used as an exclamation, often offensive or profane
Example
He shouted an expletive when he dropped the hammer on his foot.
Él gritó una palabra ofensiva cuando dejó caer el martillo sobre su pie.
C2 noun /ˈbɑːr.nɪ.kəl/

Barnacle

percebe
Meaning
a marine crustacean that attaches itself permanently to underwater surfaces
Example
The old ship's hull was covered with barnacles.
El casco del viejo barco estaba cubierto de percebes.
C2 adjective /ɪˈrɛfrəɡəbəl/

irrefragable

irrefutable
Meaning
Impossible to refute, deny, or break
Example
The lawyer presented irrefragable evidence that proved his client’s innocence.
El abogado presentó pruebas irrefutables que demostraron la inocencia de su cliente.
C2 noun /səbˈdʌk.ʃən/

subduction

El movimiento lateral y hacia abajo de una capa de la corteza terrestre hacia el manto debajo de otra capa.
Meaning
The lateral and downward movement of the edge of a plate of the earth's crust into the mantle beneath another plate.
Example
The Pacific Ring of Fire is an area of intense subduction.
El anillo de fuego del Pacífico es un área de intensa subducción.
C2 noun /ˈbɛlˌwɛðər/

bellwether

líder de tendencia
Meaning
A person or thing that leads or indicates a trend.
Example
The company is seen as a bellwether of the technology industry.
La compañía se ve como un líder de tendencia de la industria tecnológica.
C2 adjective /lʌɡˈʒʊəriənt/

luxuriant

exuberante
Meaning
abundant in growth or richly abundant
Example
The luxuriant forest was teeming with life.
El exuberante bosque estaba lleno de vida.
C2 adjective səˈluː.bri.əs

salubrious

saludable
Meaning
Health-giving; healthy; promoting health and well-being.
Example
The mountain air is salubrious and refreshing.
El aire de la montaña es saludable y refrescante.
C2 adjective /ˈlɪɡ.ni.əs/

ligneous

maderoso
Meaning
having the texture or appearance of wood; woody
Example
The ligneous stem supported the heavy flowers.
El tallo maderoso soportaba las flores pesadas.
C2 noun /ˈpær.əkˌsɪz.əm/

paroxysm

arrebato súbito
Meaning
A sudden, violent outburst of emotion or activity.
Example
She was seized by a paroxysm of laughter.
Ella fue tomada por un arrebato de risa.
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 /ˈsteɪ.dʒi/

stagy

excesivamente teatral
Meaning
Overly theatrical, artificial, or exaggerated in manner or style.
Example
Her performance felt stagy and unnatural.
Su actuación se sintió excesivamente teatral y antinatural.
C2 adjective /ˈpɑːmi/

palmy

próspero / glorioso
Meaning
prosperous, flourishing, or relating to palm trees
Example
He often reminisced about the palmy days of his youth.
A menudo recordaba los días prósperos de su juventud.
C2 adjective /ˌsʌb.əˈkwɒt.ɪk/

subaquatic

subacuático
Meaning
Existing, living, or located under water.
Example
Divers explored the subaquatic cave system filled with rare fish.
Los buzos exploraron el sistema de cavernas subacuáticas llenas de peces raros.
C2 noun /ˌkʌmˈʌpəns/

comeuppance

castigo merecido
Meaning
A deserved punishment or fate; just deserts.
Example
The corrupt official finally got his comeuppance in court.
El funcionario corrupto finalmente recibió su castigo merecido en el tribunal.
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 verb /ˌpriːɔːrˈdeɪn/

preordain

preordinar
Meaning
To decide or determine an outcome in advance, especially by fate or divine will.
Example
They believed their meeting was preordained by destiny.
Ellos creían que su encuentro estaba predestinado por el destino.
C2 noun /tiːˈtoʊtəlɪzəm/

teetotalism

abstinencia total del alcohol
Meaning
the practice or principle of abstaining completely from alcoholic drinks
Example
He practiced teetotalism throughout his life.
Él practicó el teetotalismo durante toda su vida.
C2 noun /ʃiːf/

sheaf

manojo de trigo
Meaning
a bundle of grain stalks laid lengthwise and tied together after reaping; a bundle of objects tied together
Example
The farmer carried a sheaf of wheat on his shoulder.
El agricultor llevaba un manojo de trigo sobre su hombro.
C2 adjective /həˈmɑː.lə.ɡəs/

homologous

homólogo (estructura)
Meaning
Having the same relation, relative position, or structure, especially due to evolutionary origin.
Example
The wings of bats and the arms of humans are homologous structures.
Las alas de los murciélagos y los brazos de los humanos son estructuras homólogas.
C2 noun /ˌɡæskəˈneɪd/

gasconade

presunción exagerada, jactancia
Meaning
Extravagant boasting or bragging.
Example
His endless gasconade made him unpopular among his peers.
Su interminable presunción lo hizo impopular entre sus compañeros.
C2 noun /ˈpriːskrɪpt/

prescript

prescripción
Meaning
An authoritative rule or direction; something laid down as a command.
Example
The prescript of the organization required strict punctuality.
El prescript de la organización requería estricta puntualidad.
C2 noun /ˈplɛdʒiː/

pledgee

la persona a la que se le ha otorgado algo como garantía
Meaning
a person to whom something is pledged or given as security
Example
The bank is the pledgee of the collateral until the loan is repaid.
El banco es el beneficiario del colateral hasta que el préstamo se pague.
C2 noun /loʊd/

lode

vetas minerales
Meaning
A rich source of something, often a vein of valuable metal in the earth.
Example
The miners discovered a rich lode of silver.
Los mineros descubrieron una rica veta de plata.
C2 verb /ˈɑːblɪˌɡeɪt/

obligate

obligar
Meaning
to bind legally or morally; to compel someone to do something
Example
The contract obligates the company to provide timely service.
El contrato obliga a la empresa a proporcionar un servicio puntual.
C2 adjective /ˈɑːbdjʊrət/

obdurate

obstinado
Meaning
Stubbornly refusing to change one's opinion or course of action.
Example
He remained obdurate despite everyone's pleas.
Él permaneció obstinado a pesar de las súplicas de todos.
C2 adjective /ˈlæk.rɪ.moʊs/

lachrymose

lloroso, triste
Meaning
tearful or given to weeping; sad and mournful
Example
The movie's lachrymose ending left the audience in tears.
El final lloroso de la película dejó al público en lágrimas.
C2 noun /bɪˈtroʊðəl/

betrothal

compromiso
Meaning
The formal engagement to be married.
Example
Their betrothal was announced to the whole village.
Su compromiso fue anunciado a todo el pueblo.
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 ˈtræn.zi.əns

transience

transitoriedad
Meaning
The state or fact of lasting only for a short time; impermanence.
Example
The transience of youth makes it more precious.
La transitoriedad de la juventud la hace más preciosa.
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 noun /kəˈraʊzl/

carousal

fiesta ruidosa
Meaning
A noisy or lively drinking party or festivity.
Example
They were exhausted after a night of wild carousal.
Estaban agotados después de una noche de fiesta ruidosa.
C2 noun /ˌpɒl.iˈsɪl.ə.bəl/

polysyllable

palabra polisílaba
Meaning
a word with more than one syllable
Example
The word 'elephant' is a polysyllable because it has three syllables.
La palabra 'elefante' es una palabra polisílaba porque tiene tres sílabas.
C2 noun /rɪˈfrækʃən/

refraction

refracción
Meaning
The bending of light, sound, or other waves when they pass from one medium to another of different density.
Example
The refraction of light in water makes objects appear bent.
La refracción de la luz en el agua hace que los objetos parezcan doblados.
C2 noun /rɪˈmɒnstrəns/

remonstrance

protesta
Meaning
A forceful protest or objection.
Example
The workers’ remonstrance against unfair treatment was ignored.
La protesta de los trabajadores contra el trato injusto fue ignorada.
C2 noun /ˌfəʊ.təʊ.sen.sɪˈtɪv.ɪ.ti/

photosensitivity

sensibilidad a la luz
Meaning
Sensitivity to light, especially abnormal sensitivity that may cause discomfort or damage.
Example
Overrubbing can increase photosensitivity.
Frotarse en exceso puede aumentar la sensibilidad a la luz.
C2 adjective /ˌvɛrɪˈsɪmɪlər/

verisimilar

parecido a la verdad
Meaning
appearing to be true or real
Example
The story seemed verisimilar though it was entirely fictional.
La historia parecía parecida a la verdad aunque era completamente ficticia.
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 noun /ˌɪkθiˈɒlədʒi/

ichthyology

icthología
Meaning
The branch of zoology that deals with fish.
Example
He pursued a degree in ichthyology at the university.
Obtuvo un título en ictiología en la universidad.
C2 verb /foʊˈmɛnt/

foment

fomentar
Meaning
To instigate or stir up (an undesirable or violent sentiment or course of action).
Example
The rebel leader tried to foment unrest among the people.
El líder rebelde trató de fomentar el descontento entre la gente.
C2 noun /kəˈtæb.ə.lɪ.zəm/

catabolism

catabolismo
Meaning
The breakdown of complex molecules in living organisms to form simpler ones together with the release of energy; destructive metabolism.
Example
Catabolism plays a crucial role in cellular energy production.
El catabolismo juega un papel crucial en la producción de energía celular.
C2 noun /ɪnˈɛrənsi/

inerrancy

inerrancia
Meaning
the belief or quality of being free from error; absolute correctness
Example
Some religious groups strongly affirm the inerrancy of their sacred texts.
Algunos grupos religiosos afirman fuertemente la inerrancia de sus textos sagrados.
C2 noun /ˈsʌplɪkənt/

supplicant

suplicante
Meaning
A person who humbly or earnestly asks for something, usually from a person of authority.
Example
The temple was filled with supplicants seeking blessings.
El templo estaba lleno de suplicantes buscando bendiciones.
C2 noun /ˈdɛkəˌɡɒn/

decagon

dodecágono
Meaning
A polygon with ten sides and ten angles.
Example
The geometry teacher drew a perfect decagon on the board.
El profesor de geometría dibujó un decágono perfecto en la pizarra.
C2 noun /ˌkæt ə ˈnaɪn ˌteɪlz/

cat-o-nine-tails

latigazo de nueve colas
Meaning
A whip with nine knotted cords, historically used for punishment.
Example
The sailor feared the cat-o-nine-tails more than the storm at sea.
El marinero temía más al cat-o-nine-tails que a la tormenta en el mar.
C2 verb /ˈɡrʌvəl/

grovel

arrodillarse
Meaning
To act in an excessively humble or submissive way to gain favor.
Example
He groveled before his boss to avoid punishment.
él se arrodilló ante su jefe para evitar el castigo.
C2 noun /ˈkɪləˌliːtər/

kiloliter

kilolitro
Meaning
a unit of capacity equal to 1,000 liters
Example
The tank can hold up to three kiloliters of water.
El tanque puede contener hasta tres kilolitros de agua.
C2 adjective /kəˈnaɪ.vɪŋ/

conniving

maquinador
Meaning
secretly scheming or plotting to help in wrongdoing
Example
He is a conniving politician who manipulates people for power.
Él es un político maquinador que manipula a la gente por poder.
C2 adjective /ˈʃɪft.ləs/

shiftless

perezoso
Meaning
Lacking ambition or the ability to accomplish anything; lazy and unmotivated.
Example
He was seen as a shiftless young man with no goals.
Se le vio como un joven perezoso sin metas.
C2 verb /ɪkˈstruːd/

extrude

extruir
Meaning
to force something out through a small opening; to shape by pushing material through a mold
Example
The factory extrudes plastic pipes using modern machines.
La fábrica extruye tubos de plástico utilizando máquinas modernas.
C2 verb /ˈdʒɛriˌmændər/

gerrymander

manipular los límites de los distritos electorales
Meaning
to manipulate the boundaries of an electoral constituency to favor one party or class
Example
The ruling party was accused of trying to gerrymander the districts to secure more seats.
Se acusó al partido gobernante de tratar de manipular los distritos para asegurar más escaños.
C2 noun /ˌɪndɛnˈteɪʃən/

indentation

sangría
Meaning
A space left at the beginning of a line of text; a notch or deep recess on a surface.
Example
The teacher asked the students to use proper indentation in their essays.
El profesor pidió a los estudiantes que usaran una sangría adecuada en sus ensayos.
C2 noun /ɪˈmɒdəsti/

immodesty

immodestia
Meaning
lack of modesty or decency; behavior or attitude that is overly bold or improper
Example
The article was criticized for its tone of immodesty.
El artículo fue criticado por su tono de immodestia.
C2 adjective /sʌbˈdʒeɪsənt/

subjacent

subyacente
Meaning
lying immediately beneath; underlying
Example
The geological survey revealed subjacent layers of rock.
La encuesta geológica reveló capas subyacentes de roca.
C2 noun /ˈrɒndoʊ/

rondo

composición musical (con tema recurrente)
Meaning
a musical composition with a recurring leading theme
Example
The pianist ended the recital with a lively rondo.
El pianista terminó el recital con un rondó animado.
C2 noun /ˈbɔːlsəm/

Balsam

flor de bálsamo
Meaning
a flowering plant with colorful blooms that often open in the evening; also refers to aromatic resin
Example
The garden balsam flowers bloomed beautifully in various shades of pink and purple.
Las flores de bálsamo del jardín florecieron hermosamente en varios tonos de rosa y morado.
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 noun /juːˌtrɑː.fɪˈkeɪ.ʃən/

eutrophication

exceso de nutrientes en un lago o cuerpo de agua
Meaning
Excessive richness of nutrients in a lake or other body of water, frequently due to runoff from the land, which causes a dense growth of plant life and death of animal life from lack of oxygen.
Example
Excess fertilizers lead to eutrophication in lakes.
Los fertilizantes excesivos provocan la eutrofización en los lagos.
C2 adjective /ˈtɛnɪbrəs/

tenebrous

tenebroso
Meaning
dark, shadowy, or obscure
Example
The cave was damp and tenebrous, filled with eerie sounds.
La cueva estaba húmeda y tenebrosa, llena de ruidos extraños.
C2 verb /ɪɡˈzɪləreɪt/

exhilarate

exaltar
Meaning
To make someone feel very happy, animated, or excited.
Example
The mountain view exhilarated the travelers.
La vista de la montaña exaltó a los viajeros.
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 /dɛnˈdrɒlədʒi/

dendrology

dendrología
Meaning
the scientific study of trees and woody plants
Example
He is studying dendrology at the university.
Él está estudiando dendrología en la universidad.
C2 adjective /ˈhɛtərəˌdɒks/

heterodox

heterodoxo
Meaning
not conforming with accepted or orthodox standards or beliefs
Example
The professor was known for his heterodox views on religion.
El profesor era conocido por sus puntos de vista heterodoxos sobre la religión.