carbon sequestration
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C1 noun ˈkɑːr.bən ˌsiː.kwəˈstreɪ.ʃən

carbon sequestration

secuestro de carbono
Meaning
The process of capture and long-term storage of atmospheric carbon dioxide to mitigate or defer global warming.
Example
Forests play a key role in carbon sequestration.
Los bosques juegan un papel clave en la secuestración de carbono.
C1 noun /ˌkɒnfləˈɡreɪʃən/

conflagration

gran incendio destructor
Meaning
A large, destructive fire that destroys a great deal of land or property.
Example
The forest was devastated by a massive conflagration that lasted for days.
El bosque fue devastado por un enorme incendio que duró varios días.
C1 noun /ˈkrɛvɪs/

crevice

grieta
Meaning
a narrow crack or opening, especially in a rock or wall
Example
The lizard hid in a crevice between the stones.
El lagarto se escondió en una grieta entre las piedras.
C1 noun /kəmˈpəʊ.ʒər/

composure

estado de calma y autocontrol
Meaning
The state or feeling of being calm and in control of oneself.
Example
She maintained her composure during the interview.
Ella mantuvo su compostura durante la entrevista.
C1 noun /tʃæmp/

champ

campeón / ganador
Meaning
an informal word for champion or winner.
Example
He is the new champ of the boxing tournament.
Él es el nuevo campeón del torneo de boxeo.
C1 noun /ˈkɒrənər/

coroner

forense
Meaning
an official who investigates sudden, violent, or suspicious deaths
Example
The coroner determined the cause of death was natural.
El forense determinó que la causa de la muerte fue natural.
C1 noun /kənˈtɛndər/

contender

competidor, pretendiente
Meaning
a person or team competing for a title or prize
Example
She is a strong contender for the mayoral position.
Ella es una fuerte contendiente para el cargo de alcaldesa.
C1 noun/verb kənˈdʒɛk.tʃər

conjecture

conjetura
Meaning
An opinion or conclusion formed on the basis of incomplete information; to form an opinion or supposition about something.
Example
The scientist's conjecture was later proven true.
La conjetura del científico fue luego comprobada como cierta.
C1 noun /kəʊˈhiːʒən/

cohesion

cohesión
Meaning
The action or fact of forming a united whole.
Example
The team showed excellent cohesion throughout the project.
El equipo mostró excelente cohesión durante el proyecto.
C1 noun /klæn/

clan

clan
Meaning
a large family group or a close-knit community with shared interests or ancestry
Example
The entire clan gathered to celebrate the festival.
Todo el clan se reunió para celebrar el festival.
C1 verb /ˈkrɪsən/

christen

bautizar
Meaning
to give a name to someone at baptism or to name something officially
Example
They christened the ship after the queen.
Ellos bautizaron el barco después de la reina.
C1 noun /krəˈvæs/

crevasse

grieta profunda
Meaning
a deep crack in a glacier or the earth’s surface
Example
The climbers carefully crossed the icy crevasse.
Los escaladores cruzaron cuidadosamente la grieta helada.
C1 verb /ˈklæmbər/

clamber

escalar con dificultad
Meaning
to climb with effort or difficulty, often using both hands and feet
Example
The children clambered over the rocks to reach the cave.
Los niños escalaron las rocas para llegar a la cueva.
C1 noun /ˌkɒk.əˈtuː/

Cockatoo

cóctel
Meaning
a large parrot with a prominent crest that can be raised or lowered
Example
The white cockatoo raised its beautiful crest.
El cóctel blanco levantó su hermosa cresta.
C1 noun /ˈsɪtəˌdɛl/

citadel

ciudadela
Meaning
A fortress protecting or dominating a city.
Example
The ancient citadel stood guard over the town for centuries.
La antigua ciudadela protegía la ciudad durante siglos.
C1 adjective /kɜːrt/

curt

ríspido
Meaning
Rudely brief in speech or manner.
Example
His curt reply made everyone uncomfortable.
Su respuesta ríspida hizo que todos se sintieran incómodos.
C1 noun/verb /ˈsaɪ.fər/

cipher

cifrado
Meaning
A secret or disguised way of writing; a code; to put a message into secret writing.
Example
Military messages are protected using a cipher.
Los mensajes militares están protegidos mediante un cifrado.
C1 verb /ˈkælɪˌbreɪt/

calibrate

calibrar
Meaning
To adjust or mark something so it can be used accurately; to standardize.
Example
The technician calibrated the machine before starting the experiment.
El técnico calibró la máquina antes de comenzar el experimento.
C1 verb /kəˈleɪt/

collate

compilar
Meaning
to collect, arrange, and combine in order
Example
The secretary collated the reports before the meeting.
La secretaria recopiló los informes antes de la reunión.
C1 noun /krɛst/

crest

cima
Meaning
the top of a hill, wave, or mountain; a symbol of identity
Example
The hikers reached the crest of the mountain at sunrise.
Los excursionistas llegaron a la cima de la montaña al amanecer.
C1 verb /kəˈpɪtjʊˌleɪt/

capitulate

capitular
Meaning
to surrender or give in after resisting
Example
The army had no choice but to capitulate to the enemy.
El ejército no tuvo más opción que capitular ante el enemigo.
C1 noun /kənˈtɪn.dʒən.si/

contingency

plan de contingencia
Meaning
A provision for an unforeseen event or circumstance, especially in financial planning.
Example
The company has a contingency plan for economic downturns.
La empresa tiene un plan de contingencia para las recesiones económicas.
C1 noun /kənˈtɪn.ju.əns/

continuance

continuidad
Meaning
the state of continuing or being prolonged; persistence
Example
The continuance of the project depended on securing additional funding.
La continuación del proyecto dependía de asegurar fondos adicionales.
C1 verb /ˈkɒnfɪskeɪt/

confiscate

confiscar
Meaning
to take something away officially, often as a punishment
Example
The teacher confiscated the student's phone during class.
La profesora confiscó el teléfono del estudiante durante la clase.
C1 verb /kənˈkɜːr/

concur

concurrir
Meaning
To agree with someone or something.
Example
I concur with your opinion on this matter.
Yo concuerdo con tu opinión sobre este asunto.
C1 noun /ˌkɔr.diˈæl.ɪ.ti/

Cordiality

cordialidad; amabilidad
Meaning
sincere affection and kindness; warm and friendly behavior
Example
The host's cordiality made all the guests feel welcome and comfortable.
La cordialidad del anfitrión hizo que todos los invitados se sintieran bienvenidos y cómodos.
C1 verb koʊˈɜrs

coerce

coaccionar
Meaning
To force someone to do something against their will using threats or intimidation.
Example
The manager tried to coerce the employees into working overtime.
El gerente intentó coaccionar a los empleados para que trabajaran horas extras.
C1 noun /ˈsɪ.nɪk/

Cynic

cínico; persona escéptica
Meaning
a person who believes that people are motivated purely by self-interest; someone who is skeptical about human nature
Example
The old cynic believed that politicians only cared about getting votes.
El viejo cínico creía que los políticos solo se preocupaban por conseguir votos.
C1 verb /kɜːrˈteɪl/

curtail

reducir
Meaning
to reduce or limit something, especially something considered undesirable
Example
The company had to curtail its spending due to budget cuts.
La compañía tuvo que reducir su gasto debido a los recortes presupuestarios.
C1 noun /səˈvɪləti/

civility

cortesía
Meaning
Polite and courteous behavior.
Example
He treated his opponent with civility despite their differences.
Trató a su oponente con cortesía a pesar de sus diferencias.
C1 verb /tʃɑːr/

char

quemar
Meaning
To burn or scorch something so that it becomes blackened.
Example
The cook accidentally charred the steak.
El cocinero accidentalmente quemó el filete.
C1 noun /krəˈʃɛndoʊ/

crescendo

aumento gradual del volumen
Meaning
a gradual increase in loudness or intensity, especially in music
Example
The orchestra built to a powerful crescendo before the finale.
La orquesta construyó un poderoso crescendo antes del final.
C1 noun /ˈtʃɪz.əl/

Chisel

cincel
Meaning
a tool with a sharp flat edge used for cutting or shaping wood, stone, or metal
Example
The carpenter used a chisel to carve the wood.
El carpintero usó un cincel para tallar la madera.
C1 adjective ˈkɒn.təm.plə.tɪv

contemplative

reflexivo o pensativo
Meaning
Expressing or involving prolonged thought; meditative and reflective.
Example
He spent a contemplative evening reflecting on his decisions.
Él pasó una tarde contemplativa reflexionando sobre sus decisiones.
C1 adjective ˈkrɪp.tɪk

cryptic

críptico, enigmático, ambiguo
Meaning
Having a meaning that is mysterious or obscure; difficult to understand.
Example
The message was cryptic and hard to decipher.
El mensaje era críptico y difícil de descifrar.
C1 adjective /ˈkɒnvɛks/

convex

convexo, redondeado hacia afuera
Meaning
curved or rounded outward
Example
The lens has a convex shape to focus light.
La lente tiene una forma convexa para enfocar la luz.
C1 noun /ˈkoʊhɔːrts/

cohorts

cohortes
Meaning
Groups of people who share a common feature or experience.
Example
Researchers compared the health outcomes of different cohorts.
Los investigadores compararon los resultados de salud de diferentes cohortes.
C1 noun /ˈkoʊhɔːrt/

cohort

cohorte
Meaning
A group of people with a shared characteristic, usually of the same age or with a common experience.
Example
The study tracked a cohort of students over ten years.
El estudio siguió a una cohorte de estudiantes durante diez años.
C1 noun /ˈkɒt.ən ˈfæb.rɪk/

Cotton Fabric

tela de algodón
Meaning
textile made from cotton fibers, known for being soft, breathable, and comfortable
Example
Cotton fabric is perfect for summer clothing.
La tela de algodón es perfecta para la ropa de verano.
C1 noun /ˌkɔːriˈɒɡrəfi/

choreography

coreografía
Meaning
The art of designing and arranging dances and movements.
Example
The choreography of the ballet was breathtaking.
La coreografía del ballet fue impresionante.
C1 verb /ˈkriːmeɪt/

cremate

cremar
Meaning
to burn a dead body to ashes as a funeral rite
Example
According to his wishes, they cremated his body after the funeral.
Según sus deseos, cremaron su cuerpo después del funeral.
C1 adjective /kənˈtɪɡ.ju.əs/

contiguous

contiguo
Meaning
sharing a common border; touching
Example
The two continguous houses shared a wall.
Las dos casas contiguas compartieron una pared.
C1 adjective /kənˈdjuː.sɪv/

conducive

propicio
Meaning
Making a certain situation or outcome likely or possible; contributing to or helping to bring about.
Example
A quiet environment is conducive to studying.
Un ambiente tranquilo es propicio para estudiar.
C1 noun /ˌklɔːstrəˈfəʊbiə/

claustrophobia

claustrofobia
Meaning
an extreme or irrational fear of being in confined spaces
Example
He avoids elevators because of his claustrophobia.
Él evita los ascensores debido a su claustrofobia.
C1 adjective ˌkaʊntəprəˈdʌktɪv

counterproductive

contraproducente
Meaning
Having the opposite of the desired effect; tending to hinder rather than help.
Example
Counterproductive activities often stem from dissatisfaction.
Las actividades contraproducentes a menudo surgen de la insatisfacción.
C1 adjective /ˌkɒnsɪˈkwɛnʃəl/

consequential

trascendental
Meaning
Having important or significant consequences; resulting from something.
Example
The meeting was consequential for the future of the project.
La reunión fue trascendental para el futuro del proyecto.
C1 adjective /ˌkævəˈlɪər/

cavalier

despreocupado
Meaning
showing a lack of proper concern; dismissive or offhand
Example
He had a cavalier attitude toward safety regulations.
Tenía una actitud despreocupada hacia las normas de seguridad.
C1 adjective /ˈkæn.dɪd/

Candid

sincero; franco; honesto
Meaning
truthful and straightforward; frank and honest in expression
Example
I appreciate your candid opinion about the project.
Aprecio tu opinión sincera sobre el proyecto.
C1 adjective /ˈkɔː.zəl/

causal

causal
Meaning
relating to or acting as a cause
Example
There is a causal link between smoking and cancer.
Existe una relación causal entre fumar y el cáncer.
C1 noun koʊˈhisɪv ˈjunɪts

cohesive units

unidades cohesivas
Meaning
Groups or organizations that work together as unified wholes, with members closely bound together.
Example
Early humans formed cohesive units for survival.
Los primeros humanos formaron unidades cohesivas para sobrevivir.
C1 verb ˌsɝː.kəmˈvent

circumvent

evitar hábilmente o encontrar una manera de eludir obstáculos o reglas
Meaning
To cleverly avoid or find a way around obstacles or rules.
Example
He tried to circumvent the security system.
Él intentó eludir el sistema de seguridad.
C1 verb /klæsp/

clasp

agarrar / broche
Meaning
to grasp or hold tightly; also a device for fastening
Example
She clasped her hands together in prayer.
Ella entrelazó sus manos en oración.
C1 noun /ˈkæn.ə.pi/

canopy

la capa superior de un bosque formada por las copas de los árboles; cobertura superior
Meaning
The upper layer of a forest formed by the crowns of trees; overhead cover.
Example
The rainforest canopy provides shelter to many birds and insects.
El dosel del bosque tropical proporciona refugio a muchas aves e insectos.
C1 noun /kəˈnʌn.drəm/

conundrum

dilema complicado o acertijo
Meaning
A complex problem or puzzle without an easy solution
Example
The ethical conundrum puzzled the researchers.
El dilema ético desconcertó a los investigadores.
C1 adjective /kənˈtɛmptʃuəs/

contemptuous

despectivo, desdeñoso
Meaning
showing or expressing contempt; scornful
Example
She gave him a contemptuous glance.
Ella le dio una mirada desdeñosa.
C1 adjective /kənˈsɛntrɪk/

concentric

concentrico
Meaning
having a common center, as in circles or spheres
Example
The artist drew concentric circles on the canvas.
El artista dibujó círculos concéntricos en el lienzo.
C1 adjective /ˈkoʊvərt/

covert

secreto
Meaning
hidden, secret, or not openly acknowledged
Example
The spy conducted a covert operation behind enemy lines.
El espía llevó a cabo una operación encubierta detrás de las líneas enemigas.
C1 noun /ˈsɛtərə/

cetera

etcétera
Meaning
Latin for 'the rest' or 'others'; commonly used in the phrase 'et cetera' meaning 'and so on'.
Example
We need to buy pens, paper, notebooks, et cetera.
Necesitamos comprar bolígrafos, papel, cuadernos, etcétera.
C1 noun /ˌkɒrəˈneɪʃən/

coronation

coronación
Meaning
the act or ceremony of crowning a sovereign or monarch
Example
The coronation of the new king was attended by thousands of people.
La coronación del nuevo rey fue presenciada por miles de personas.
C1 noun/verb /ˈkætəpʌlt/

catapult

catapulta / dispositivo para lanzar
Meaning
A device for launching objects at high speed; to hurl or launch something suddenly.
Example
The invention catapulted him to international fame.
La invención lo catapultó a la fama internacional.
C1 noun ˌkɒn.ʃiˈen.ʃəs.nəs

conscientiousness

conciencia
Meaning
The quality of wishing to do one's work or duty well and thoroughly; diligence.
Example
Her conscientiousness in work led to a well-organized project.
Su conciencia en el trabajo condujo a un proyecto bien organizado.
C1 noun /ˈsɪvɪks/

civics

educación cívica
Meaning
the study of the rights and duties of citizens and how government works
Example
Civics helps students understand their responsibilities as citizens.
La educación cívica ayuda a los estudiantes a entender sus deberes como ciudadanos.
C1 noun ˈkætəlɪst

catalyst

catalizador
Meaning
A person or thing that precipitates an event or change.
Example
His speech acted as a catalyst for change in the community.
Su discurso actuó como un catalizador para el cambio en la comunidad.
C1 noun /ˈkæv.əl.ri/

Cavalry

caballería
Meaning
soldiers who fight on horseback; the part of an army formerly composed of troops on horseback
Example
The cavalry charged across the field with great speed.
La caballería cargó a través del campo con gran velocidad.
C1 noun kənˈfɔː.mə.ti

conformity

conformidad, obediencia, cumplimiento
Meaning
Compliance with standards, rules, or laws. Behavior in accordance with socially accepted conventions.
Example
Strict conformity to the rules ensures order in society.
La estricta conformidad con las reglas asegura el orden en la sociedad.
C1 noun /ˈkoʊtʃ.mən/

Coachman

cochero
Meaning
a person who drives a horse-drawn carriage or coach
Example
The coachman skillfully guided the horses through the busy streets.
El cochero guió hábilmente los caballos a través de las calles concurridas.
C1 adjective /kəˈrəʊsɪv/

corrosive

corrosivo, dañino
Meaning
tending to cause corrosion; harmful or destructive to materials or people
Example
The chemical is highly corrosive and should be handled with care.
El producto químico es altamente corrosivo y debe manejarse con cuidado.
C1 noun /kəˈlɪɡrəfi/

calligraphy

el arte de la escritura hermosa y decorativa
Meaning
The art of beautiful and decorative handwriting.
Example
She took a course to improve her calligraphy skills.
Ella tomó un curso para mejorar sus habilidades en caligrafía.
C1 verb /kənˈtɛkstʃuəlaɪz/

contextualize

contextualizar
Meaning
to place something in a context or interpret it in relation to its surroundings
Example
The teacher contextualized the historical event to make it more relevant for students.
El maestro contextualizó el evento histórico para hacerlo más relevante para los estudiantes.
C1 adjective /klaɪˈmæktɪk/

climactic

climático
Meaning
Relating to the most exciting or important moment of something.
Example
The film ended with a climactic battle scene.
La película terminó con una escena de batalla climática.
C1 adjective, noun /ˈkɑːr.dɪ.nəl/

cardinal

cardenal / principal
Meaning
As an adjective: of prime importance; as a noun: a high-ranking Catholic clergyman or a type of bird.
Example
Honesty is a cardinal virtue in life.
La honestidad es una virtud cardinal en la vida.
C1 noun /ˈkjuːmɪn/

Cumin

comino
Meaning
A spice made from the dried seeds of a plant in the parsley family, with a warm earthy flavor
Example
Cumin is an essential spice in Indian and Middle Eastern cooking.
El comino es una especia esencial en la cocina india y del Medio Oriente.
C1 noun /ˈkæpɪˌlɛri/

capillary

capilar
Meaning
a very thin blood vessel that connects arteries and veins
Example
Oxygen passes from the blood into tissues through capillaries.
El oxígeno pasa de la sangre a los tejidos a través de los capilares.
C1 verb /kliːv/

cleave

dividir, cortar
Meaning
to split or divide; to cut through forcefully
Example
He used an axe to cleave the wood.
Usó un hacha para dividir la madera.
C1 verb /ˌkaʊntərˈækt/

counteract

contrarrestar
Meaning
to act against something in order to reduce its effect
Example
The medicine helps counteract the side effects of the treatment.
El medicamento ayuda a contrarrestar los efectos secundarios del tratamiento.
C1 verb /ˌkɒndɪˈsɛnd/

condescend

mirar desde arriba con amabilidad
Meaning
to behave as if one is superior while being gracious to others
Example
He would not condescend to answer such a trivial question.
Él no se dignaría a responder una pregunta tan trivial.
C1 noun /ˌkɒn.təmˈpleɪ.ʃən/

contemplation

profunda reflexión
Meaning
The action of looking thoughtfully at something for a long time; deep reflective thought.
Example
She sat in contemplation before making her decision.
Ella se sentó en profunda reflexión antes de tomar su decisión.
C1 verb /kənˈspaɪər/

conspire

conspirar
Meaning
to secretly plan with others to do something harmful or illegal
Example
They conspired to overthrow the government.
Ellos conspiraron para derrocar al gobierno.
C1 noun/verb /kroʊˈʃeɪ/

crochet

croché
Meaning
Needlework made by interlocking loops of thread with a hooked needle; the act of making such items.
Example
She learned how to crochet a scarf for winter.
Ella aprendió a hacer un suéter de lana para el invierno.
C1 noun /krəˈnɒlədʒi/

chronology

cronología
Meaning
The arrangement of events or dates in the order of their occurrence.
Example
The chronology of the dynasty was carefully studied by historians.
La cronología de la dinastía fue cuidadosamente estudiada por los historiadores.
C1 noun /ˈkælkjʊləs/

calculus

cálculo
Meaning
A branch of mathematics concerned with rates of change and accumulation; also a hard mineral deposit in the body such as on teeth.
Example
Calculus is essential for advanced studies in physics and engineering.
El cálculo es esencial para los estudios avanzados en física e ingeniería.
C1 verb /koʊks/

coax

persuadir
Meaning
to persuade someone gently or gradually to do something
Example
She managed to coax the cat out of the tree with some food.
Ella logró convencer al gato para que bajara del árbol con algo de comida.
C1 adjective /koʊˈɪnsɪdənt/

coincident

coincidente
Meaning
Occurring at the same time; occupying the same position in space or time.
Example
The festival was coincident with the national holiday.
El festival fue coincidente con el día festivo nacional.
C1 adjective /ˈkræfti/

crafty

astuto, ingenioso, tramposo
Meaning
skilled at achieving goals through cunning or deceit; sly
Example
The crafty fox evaded the hunters again.
El astuto zorro evadió a los cazadores nuevamente.
C1 noun /krʊk/

crook

delincuente
Meaning
a dishonest person, especially a criminal
Example
The police finally caught the crook who had been stealing cars.
La policía finalmente atrapó al delincuente que había estado robando autos.
C1 adjective /ˈkɒn.ɪ.fər.əs/

coniferous

relacionado con los árboles que producen conos
Meaning
Relating to cone-bearing trees that usually have needle-like leaves and remain green year-round.
Example
Pine trees are coniferous and grow in colder climates.
Los pinos son coníferos y crecen en climas más fríos.
C1 verb /ˈkrʌmpəl/

crumple

arrugar
Meaning
to crush something into folds or wrinkles
Example
He crumpled the paper and threw it in the bin.
Él arrugó el papel y lo tiró a la papelera.
C1 noun /ˈkɒnsjʊlət/

consulate

consulado
Meaning
the building or office where a consul works
Example
He went to the consulate to renew his visa.
Él fue al consulado para renovar su visa.
C1 verb /kənˈsɛptʃuəlaɪz/

conceptualize

conceptualizar
Meaning
to form an idea or concept of something in your mind
Example
The artist conceptualized a new design for the exhibition.
El artista conceptualizó un nuevo diseño para la exposición.
C1 noun /kuː/

coup

golpe de estado
Meaning
a sudden, decisive action that brings about a change, especially in government
Example
The military staged a coup to overthrow the existing regime.
El ejército llevó a cabo un golpe para derrocar al régimen existente.
C1 verb /klɪntʃ/

clinch

asegurar
Meaning
To secure or settle something decisively; to grasp tightly.
Example
The team clinched the championship with a last-minute goal.
El equipo aseguró el campeonato con un gol en el último minuto.
C1 noun /kəˈluːʒən/

collusion

colusión
Meaning
A secret agreement or cooperation, especially for an illegal or dishonest purpose.
Example
There was evidence of collusion between the officials and the contractors.
Había evidencia de colusión entre los funcionarios y los contratistas.
C1 verb /kəˈluːd/

collude

conspirar
Meaning
To secretly cooperate or conspire with others, often for a deceitful purpose.
Example
The two companies colluded to fix prices in the market.
Las dos empresas conspiraron para fijar los precios en el mercado.
C1 noun /ˈkaʊntərˌpɔɪnt/

counterpoint

contrapunto
Meaning
an argument, idea, or theme contrasting with another; also a musical term for independent melody
Example
Her calm attitude was a counterpoint to his anger.
Su actitud tranquila fue un contrapunto a su ira.
C1 adjective /kəˈmɛmərətɪv/

commemorative

conmemorativo
Meaning
Serving as a reminder or in honor of a person or event.
Example
They issued a commemorative coin for the independence anniversary.
Emitieron una moneda conmemorativa para el aniversario de la independencia.
C1 noun /kliːk/

clique

clique
Meaning
a small, exclusive group of people
Example
The students formed a clique that excluded others.
Los estudiantes formaron una clique que excluía a los demás.
C1 noun /kræɡ/

crag

un acantilado o roca empinada
Meaning
a steep or rugged cliff or rock face
Example
The hikers climbed the jagged crag to reach the summit.
Los excursionistas subieron el acantilado escarpado para llegar a la cima.
C1 adverb /ˌkɒnfɪˈdenʃəli/

Confidentially

de manera confidencial
Meaning
in a confidential manner; secretly; privately
Example
The information was shared confidentially between the two managers.
La información fue compartida confidencialmente entre los dos gerentes.
C1 noun /kʌˈstoʊ.di.ən/

Custodian

conserje; guardián; encargado
Meaning
a person who has responsibility for or looks after something; a caretaker or guardian
Example
The school custodian ensures that all buildings are clean and secure.
El conserje de la escuela se asegura de que todos los edificios estén limpios y seguros.
C1 noun kəˈmɛns.mənt

commencement

comienzo
Meaning
The beginning of something; a ceremony at which degrees or diplomas are conferred on graduating students.
Example
The commencement ceremony marked the start of a new journey.
La ceremonia de comienzo marcó el inicio de un nuevo viaje.
C1 verb /ˈkəʊ.dɪ.faɪ/

codify

codificar
Meaning
to arrange laws, rules, or ideas into a clear and systematic code
Example
The committee worked to codify the existing laws.
El comité trabajó para codificar las leyes existentes.
C1 noun sɜːrˈkeɪdiən ˈrɪðəm

circadian rhythm

ritmo circadiano
Meaning
The body's natural sleep-wake cycle that occurs within 24 hours
Example
Exposure to natural light regulates the circadian rhythm.
La exposición a la luz natural regula el ritmo circadiano.
C1 noun /ˈkleɪmənt/

claimant

reclamante
Meaning
a person who makes a claim, especially in a legal or financial context
Example
The claimant filed for compensation after the accident.
El reclamante presentó una solicitud de compensación después del accidente.
C1 noun ˌkæl.ɪˈbreɪ.ʃən

calibration

calibración
Meaning
The action or process of adjusting or determining the accuracy of measuring instruments.
Example
The accuracy of a scale depends on regular calibration.
La precisión de una balanza depende de una calibración regular.
C1 noun kəˈrəʊ.ʒən

corrosion

corrosión
Meaning
The gradual destruction of materials by chemical or electrochemical reaction, especially of metals by oxidation.
Example
Corrosion in pipes leads to leakage.
La corrosión en las tuberías conduce a la fuga.
C1 noun /ˈkɜːr.i liːvz/

Curry Leaves

hojas de curry
Meaning
aromatic leaves from the curry tree used in South Asian cooking
Example
Fresh curry leaves add authentic flavor to Indian dishes.
Las hojas de curry frescas añaden un sabor auténtico a los platos indios.
C1 adjective /kənˈteɪ.dʒəs/

Contagious

contagioso; infeccioso
Meaning
likely to spread to and affect others; infectious
Example
Her laughter is contagious and makes everyone smile.
Su risa es contagiosa y hace sonreír a todos.
C1 adjective /ˈkʌlpəbl̩/

culpable

culpable
Meaning
deserving blame or responsibility for a wrongdoing
Example
The judge found him culpable for the accident.
El juez lo consideró culpable del accidente.
C1 noun /ˈkɜːrlər/

curler

rizador
Meaning
A small roller used for curling hair.
Example
She used a curler to style her hair for the party.
Ella usó un rizador para estilizar su cabello para la fiesta.
C1 adjective /ˈtʃɪə.ləs/

Cheerless

desolado; sombrío; triste; sin alegría
Meaning
lacking happiness or comfort; gloomy; depressing; without cheer
Example
The old house looked cheerless and abandoned in the winter rain.
La casa vieja se veía desolada y abandonada bajo la lluvia invernal.
C1 verb /ˈkʌvət/

covet

codiciar
Meaning
to desire something belonging to someone else
Example
He coveted his neighbor's new car.
Él codició el coche nuevo de su vecino.
C1 noun /ˈkɑːrkəs/

carcass

cuerpo muerto de un animal
Meaning
the dead body of an animal, especially after being slaughtered
Example
Vultures fed on the carcass left in the field.
Los buitres se alimentaron del cadáver dejado en el campo.
C1 noun /ˈkɑːmənˌwɛlθ/

commonwealth

Commonwealth
Meaning
an independent community or state, especially one founded for the common good; also an association of nations
Example
Australia is a member of the Commonwealth of Nations.
Australia es miembro de la Commonwealth de Naciones.
C1 adjective sɪˈlɛstʃəl

celestial

celestial
Meaning
Positioned in or relating to the sky, or outer space as observed in astronomy.
Example
The celestial bodies in the sky were clearly visible last night.
Los cuerpos celestes en el cielo eran claramente visibles la noche pasada.
C1 noun ˌsɛn.trə.laɪˈzeɪ.ʃən

centralization

centralización
Meaning
The concentration of control and decision-making power in a central authority.
Example
Excessive centralization can slow down decision-making.
La centralización excesiva puede ralentizar la toma de decisiones.
C1 verb /kraʊtʃ/

crouch

agacharse
Meaning
to bend your knees and lower your body close to the ground
Example
The cat crouched before leaping at its prey.
El gato se agachó antes de saltar hacia su presa.
C1 noun /kəˈnɛəri/

canary

canario
Meaning
a small, usually yellow bird known for its singing; also used as a warning sign in dangerous conditions
Example
The canary sang beautifully in its cage.
El canario cantaba hermosamente en su jaula.
C1 noun /kəˈloʊkwiəˌlɪzəm/

colloquialism

coloquialismo
Meaning
a word or phrase used in informal speech or writing
Example
The novel is full of regional colloquialisms.
La novela está llena de coloquialismos regionales.
C1 verb /kɑːrp/

carp

quejarse
Meaning
to complain or find fault continually, often about trivial matters
Example
She tends to carp about the smallest inconveniences.
Ella tiende a quejarse por los inconvenientes más pequeños.
C1 noun /ˈkɔːl.drən/

Cauldron

caldero
Meaning
a large metal pot with a lid and handle, used for cooking over a fire
Example
The witch stirred her potion in a large cauldron.
La bruja removió su poción en un gran caldero.
C1 noun /kɔːrs flaʊər/

Course flour

harina gruesa
Meaning
coarsely ground flour with larger particles, typically used for baking bread
Example
She used course flour to make homemade bread with a rustic texture.
Ella usó harina gruesa para hacer pan casero con una textura rústica.