categorically refuted
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C1 phrase ˌkæt.əˈɡɒr.ɪ.kəl.i rɪˈfjuː.tɪd

categorically refuted

totalmente refutado
Meaning
Completely and absolutely denied or disproved.
Example
The claims were categorically refuted by officials.
Las afirmaciones fueron categóricamente refutadas por los funcionarios.
C1 adjective /pəˈnɪnsjələr/

peninsular

peninsular
Meaning
Relating to or resembling a peninsula.
Example
The peninsular region is surrounded by water on three sides.
La región peninsular está rodeada de agua por tres lados.
C1 adjective /fəˈroʊ.ʃəs/

Ferocious

feroz, salvaje, cruel
Meaning
savagely fierce, cruel, or violent; extremely aggressive
Example
The ferocious storm destroyed many houses in the coastal area.
La feroz tormenta destruyó muchas casas en la zona costera.
C1 noun /ˈmælədi/

Malady

enfermedad; malestar; dolencia
Meaning
A disease or ailment; a serious problem
Example
The doctor diagnosed a rare malady that affected her nervous system.
El doctor diagnosticó una enfermedad rara que afectó su sistema nervioso.
C1 adjective tɪˈneɪ.ʃəs

tenacious

tenaz
Meaning
Not readily letting go of, giving up, or separated from an object that one holds, a position, or a principle; persistent.
Example
Her tenacious spirit helped her overcome hardships.
Su espíritu tenaz le ayudó a superar las dificultades.
C1 noun /ˈɑd.ɪ.ti/

Oddity

rareza
Meaning
something that is strange or unusual; a peculiar trait
Example
His habit of sleeping standing up was considered an oddity.
Su hábito de dormir de pie se consideraba una rareza.
C1 noun /ˈkælɪbər/

caliber

calibre
Meaning
The quality of someone's ability or character; the internal diameter of a gun barrel.
Example
The university attracts students of high caliber.
La universidad atrae a estudiantes de alto calibre.
C1 noun /trænsˈfjuːʒən/

transfusion

transfusión sanguínea
Meaning
the process of transferring blood or another fluid into a person's vein
Example
The patient received a blood transfusion after the accident.
El paciente recibió una transfusión de sangre después del accidente.
C1 noun /ˈæd.və.ser.i/

adversary

adversario
Meaning
One's opponent in a contest, conflict, or dispute.
Example
The boxer faced a strong adversary in the ring.
El boxeador enfrentó a un fuerte adversario en el ring.
C1 noun /vəˈræs.ə.ti/

veracity

veracidad
Meaning
Conformity to facts; accuracy and truthfulness.
Example
The journalist checked the veracity of the report.
El periodista verificó la veracidad del informe.
C1 noun /pæŋ/

pang

una sensación repentina de dolor o angustia emocional
Meaning
a sudden sharp feeling of pain or emotional distress
Example
She felt a pang of guilt after the argument.
Sintió un pang de culpa después de la discusión.
C1 adjective daɪˈvɜː.dʒənt

divergent

divergente
Meaning
Tending to be different or develop in different directions
Example
Divergent policies create challenges in collaboration.
Las políticas divergentes crean desafíos en la colaboración.
C1 noun /kənˈkʌrəns/

concurrence

concurrencia
Meaning
Agreement or union in action, opinion, or occurrence; simultaneous happening of events.
Example
The project was completed with the concurrence of all departments.
El proyecto se completó con la concurrencia de todos los departamentos.
C1 noun /ˈiːɡətɪst/

egotist

ególatra
Meaning
A person who is excessively self-centered or talks too much about themselves.
Example
The egotist dominated the conversation by talking only about his own achievements.
El ególatra dominó la conversación hablando solo de sus propios logros.
C1 adjective /ˌæprɪˈhɛnsɪv/

apprehensive

ansioso
Meaning
feeling anxious or fearful that something bad will happen
Example
He was apprehensive about starting a new job in a foreign country.
Estaba ansioso por comenzar un nuevo trabajo en un país extranjero.
C1 noun /təˈlɛpəθi/

telepathy

telepatía
Meaning
the supposed communication of thoughts or ideas by means other than the known senses
Example
The twins claimed to share telepathy with each other.
Los gemelos afirmaron compartir telepatía entre sí.
C1 verb /ɪnˈfjʊərieɪt/

infuriate

enfurecer
Meaning
To make someone extremely angry.
Example
His careless remarks infuriated the entire team.
Sus comentarios descuidados enfurecieron a todo el equipo.
C1 noun /ˈsaɪ.ən/

scion

descendiente
Meaning
a descendant of a wealthy, aristocratic, or influential family
Example
He is the scion of a wealthy industrialist family.
Él es el descendiente de una familia industrialista rica.
C1 noun ˈwaɪldlaɪf ˈkɔːrɪdɔːrz

wildlife corridors

corredores de vida silvestre
Meaning
Areas of habitat connecting wildlife populations separated by human activities or structures.
Example
Wildlife corridors connect fragmented habitats, enabling species migration.
Los corredores de vida silvestre conectan hábitats fragmentados, permitiendo la migración de especies.
C1 noun /ˈɒn.slɔːt/

onslaught

asalto
Meaning
A fierce or destructive attack.
Example
The village faced an onslaught of enemy forces.
El pueblo enfrentó un asalto de las fuerzas enemigas.
C1 verb /bɒtʃ/

botch

estropear
Meaning
to carry out a task badly or carelessly
Example
He completely botched the repair job.
Él estropeó completamente el trabajo de reparación.
C1 verb /ˈaɪdəlaɪz/

idolize

idolatrar
Meaning
To admire or worship someone excessively.
Example
Fans often idolize celebrities for their talent and lifestyle.
Los fanáticos a menudo idolizan a las celebridades por su talento y estilo de vida.
C1 verb /ˈfɔːrfɪt/

forfeit

perder, renunciar como penalización
Meaning
to lose or give up something, usually as a penalty for wrongdoing
Example
He had to forfeit the match after breaking the rules.
Tuvo que perder el partido después de romper las reglas.
C1 noun /rɑk sɔlt/

Rock Salt

sal de roca
Meaning
natural salt crystals formed from evaporated ancient seas; unrefined salt
Example
Rock salt is considered healthier than table salt.
La sal de roca se considera más saludable que la sal de mesa.
C1 noun /ˈsɛpərətɪst/

separatist

separatista
Meaning
A person who supports the separation of a group from a larger body, often for political or cultural independence.
Example
The separatist group demanded independence from the central government.
El grupo separatista exigió la independencia del gobierno central.
C1 adjective /ˈliː.ni.ənt/

Lenient

tolerante; indulgente; misericordioso; no estricto en el castigo o juicio
Meaning
tolerant; forgiving; merciful; not strict in punishment or judgment
Example
The teacher was lenient with students who submitted their homework late.
El maestro fue tolerante con los estudiantes que entregaron su tarea tarde.
C1 adjective /ɪnˈdiːsənt/

indecent

indecente
Meaning
not conforming to accepted standards of behavior or morality; improper or offensive
Example
He was warned for making an indecent remark during the meeting.
Fue advertido por hacer un comentario indecente.
C1 noun /ˈrɛdʒɪmənt/

regiment

regimiento
Meaning
A permanent unit of an army, typically commanded by a colonel and divided into several companies.
Example
The regiment marched proudly through the streets after returning from the mission.
El regimiento marchó orgullosamente por las calles tras regresar de la misión.
C1 noun /ɪmˈpɛd.ɪ.mənt/

impediment

obstáculo
Meaning
A hindrance or obstruction in doing something; something that prevents progress.
Example
Lack of funds is a major impediment to the project.
La falta de fondos es un gran obstáculo para el proyecto.
C1 noun /ˈpær.ə.kiːt/

Parakeet

periquito
Meaning
a small colorful parrot with a long tail, often kept as a pet
Example
The green parakeet learned to say hello.
El periquito verde aprendió a decir hola.
C1 noun /pəˈrɛnθəsɪs/

parenthesis

paréntesis
Meaning
A pair of curved marks ( ) used to enclose words or numbers; also an interruption or digression in speech or writing.
Example
The explanation was given in a parenthesis within the text.
La explicación se dio en un paréntesis dentro del texto.
C1 verb /ˌriːˈkɒn.stɪ.tʃuːt/

reconstitute

reconstituir
Meaning
to restore something to its original form or state; to reassemble
Example
The group was reconstituted after the leader returned.
El grupo fue reconstituido después de que el líder regresó.
C1 noun /ˈæmpɛər/

ampere

ámper
Meaning
A unit of electric current in the International System of Units (SI), symbolized as A.
Example
The current flowing through the wire is measured in amperes.
La corriente que fluye a través del cable se mide en amperios.
C1 adjective /ˌwɛlˈbrɛd/

well-bred

bien educado
Meaning
Having or showing good manners; properly raised.
Example
She is a well-bred young lady with excellent manners.
Ella es una joven bien educada con excelentes modales.
C1 noun /ɔːˈdæs.ə.ti/

audacity

osadía
Meaning
The willingness to take bold risks; boldness or fearlessness.
Example
His audacity to question authority was admirable.
Su osadía para cuestionar la autoridad era admirable.
C1 verb /prəˈkjʊər/

procure

conseguir
Meaning
to obtain something, especially with effort or difficulty
Example
They managed to procure enough supplies for the expedition.
Ellos lograron conseguir suficientes suministros para la expedición.
C1 verb /blɜːrt/

blurt

decir algo sin pensar
Meaning
to say something suddenly without thinking
Example
He blurts out the secret accidentally.
Él dice el secreto accidentalmente.
C1 adjective /ˈlaʊzi/

lousy

malo
Meaning
of very poor quality; bad or unpleasant
Example
He felt lousy after catching the flu.
Se sintió mal después de coger la gripe.
C1 noun ɪnˌvaɪ.rənˈmen.təl ˌtræns.fəˈmeɪ.ʃən

environmental transformation

transformación ambiental
Meaning
A significant change in environmental conditions or ecological systems.
Example
The city demonstrates environmental transformation.
La ciudad demuestra transformación ambiental.
C1 noun /ˈjeloʊ oʊliˈændər/

Yellow oleander

oleandro amarillo
Meaning
a tropical flowering shrub with bright yellow flowers; also known as lucky nut
Example
The yellow oleander blooms throughout the year in warm climates.
El oleandro amarillo florece durante todo el año en climas cálidos.
C1 adverb /ˈæmpli/

amply

ampliamente
Meaning
more than sufficiently; generously
Example
She was amply rewarded for her hard work.
Ella fue generosamente recompensada por su arduo trabajo.
C1 verb /dɪˈstɪl/

distill

destilar
Meaning
To purify a liquid by heating and cooling; to extract the essential meaning or most important aspects.
Example
The factory distills water to make it safe for drinking.
La fábrica destila agua para hacerla segura para beber.
C1 noun /kənˈvʌl.ʃən/

convulsion

convulsión
Meaning
a sudden, violent, involuntary contraction of muscles; a seizure
Example
The medicine helped prevent convulsions in children.
El medicamento ayudó a prevenir las convulsiones en los niños.
C1 noun /wɪsp/

wisp

un pequeño racimo o trozo
Meaning
A small thin or twisted bunch, piece, or amount of something.
Example
A wisp of smoke rose from the chimney.
Una wisp de humo subió por la chimenea.
C1 adjective /dɪˈpreɪvd/

depraved

depravado
Meaning
morally corrupt or wicked
Example
The film depicts the life of a depraved criminal.
La película describe la vida de un criminal depravado.
C1 noun /ˈɪmɪnəns/

imminence

inminencia, estado de proximidad
Meaning
the state of being about to happen
Example
The imminence of the storm forced people to take shelter.
La inminencia de la tormenta obligó a la gente a buscar refugio.
C1 noun /ˈtʃæplɪn/

chaplain

capellán
Meaning
A member of the clergy attached to a private chapel, institution, hospital, or military unit.
Example
The army chaplain offered prayers before the battle.
El capellán del ejército ofreció oraciones antes de la batalla.
C1 noun /haʊnd/

Hound

perro de caza
Meaning
a dog bred for hunting, typically having a keen sense of smell
Example
The bloodhound tracked the scent through the dense forest.
El bloodhound siguió el rastro a través del denso bosque.
C1 verb /ˈdʒɪtər/

jitter

temblar
Meaning
to shake or tremble slightly, often from fear, nervousness, or excitement
Example
He began to jitter nervously before giving his speech.
Comenzó a temblar nerviosamente antes de dar su discurso.
C1 adjective /ˈpriːmə/

prima

principal, excelente
Meaning
first or most important; excellent
Example
She was treated as the prima ballerina of the troupe.
Ella fue tratada como la prima bailarina del grupo.
C1 noun /ˈhjuːbrɪs/

hubris

hubris
Meaning
excessive pride or self-confidence
Example
His hubris led to his downfall.
Su hubris condujo a su caída.
C1 adjective əˈblɪv.i.əs

oblivious

despreocupado
Meaning
Being completely unaware of surrounding events.
Example
He was oblivious to the noise around him while reading.
Él no se dio cuenta del ruido a su alrededor mientras leía.
C1 noun /ˈflɔː.rə/

flora

la vida vegetal encontrada en una región o hábitat particular
Meaning
The plant life found in a particular region or habitat.
Example
The Amazon rainforest is home to a vast flora diversity.
La selva amazónica es hogar de una gran diversidad de flora.
C1 noun /kəˈlæm.ɪ.ti/

Calamity

calamidad; desastre
Meaning
an event causing great and often sudden damage or distress; a disaster
Example
The earthquake was a terrible calamity that affected thousands of families.
El terremoto fue una terrible calamidad que afectó a miles de familias.
C1 adjective ˌʌn.pəˈtɜːbd

unperturbed

no preocupado o perturbado por algo; calmado y compuesto
Meaning
Not worried or disturbed by something; calm and composed.
Example
She remained unperturbed despite the challenges.
Ella permaneció tranquila a pesar de los desafíos.
C1 noun /ˌmɔːrəˈtɔːriəm/

moratorium

moratoria
Meaning
A temporary suspension or delay of an activity, law, or obligation.
Example
The government announced a moratorium on new mining licenses.
El gobierno anunció una moratoria sobre las nuevas licencias de minería.
C1 noun /ˌɪmpɔːrˈteɪʃən/

importation

importación
Meaning
The act of bringing goods or services into a country from abroad
Example
The importation of luxury goods is strictly regulated.
La importación de productos de lujo está estrictamente regulada.
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 noun /rɪˈdʌn.dəns/

Redundance

redundancia
Meaning
the state of being not or no longer needed or useful; superfluous repetition of information
Example
The document contained redundance that made it unnecessarily long.
El documento contenía redundancia que lo hacía innecesariamente largo.
C1 noun /zest/

Zest

entusiasmo; energía y emoción; la cáscara exterior de una fruta cítrica
Meaning
great enthusiasm and energy; excitement and vigor; the outer peel of a citrus fruit
Example
She approached the new job with tremendous zest.
Ella asumió el nuevo trabajo con un enorme entusiasmo.
C1 noun /ˈbɑn.dɪdʒ/

Bondage

esclavitud; cautiverio
Meaning
the state of being a slave; the state of being under the control of a force or influence
Example
The people fought to escape from the bondage of oppression.
La gente luchaba para escapar de la esclavitud de la opresión.
C1 adverb /ˈnæroʊli/

Narrowly

por un pequeño margen; apenas
Meaning
by a small margin; barely; in a limited way
Example
She narrowly escaped the accident.
Ella escapó por poco del accidente.
C1 noun /speɪt/

spate

oleada
Meaning
a large number of things occurring in quick succession
Example
There has been a spate of robberies in the city.
Ha habido una oleada de robos en la ciudad.
C1 noun /ˈneɪ.vəl/

Navel

ombligo
Meaning
the small hollow in the center of the stomach where the umbilical cord was attached
Example
The baby's navel cord fell off after a week.
El cordón umbilical del bebé se cayó después de una semana.
C1 noun /ˌæntiˈklaɪmæks/

anticlimax

anticlimax
Meaning
A disappointing end after a big build-up of excitement or expectation.
Example
The movie's ending was an anticlimax after such a thrilling story.
El final de la película fue un anticlimax después de una historia tan emocionante.
C1 adjective /ˌiːɡoʊˈsentrɪk/

egocentric

egocéntrico
Meaning
thinking only about yourself and not about others
Example
His egocentric behavior annoyed everyone at the meeting.
Su comportamiento egocéntrico molestó a todos en la reunión.
C1 adjective /ˈfɪɡərətɪv/

figurative

figurado
Meaning
not literal; using figures of speech or symbolic representation
Example
She used figurative language to describe her feelings.
Ella usó lenguaje figurado para describir sus sentimientos.
C1 noun /ˈʌp.raɪt.nəs/

Uprightness

rectitud; integridad
Meaning
the quality of being honest and morally correct; integrity
Example
His uprightness in business dealings earned him great respect.
Su rectitud en los negocios le ganó gran respeto.
C1 noun ˌiː.kəʊˈfrend.li ˌɜː.bən.aɪˈzeɪ.ʃən

eco-friendly urbanization

urbanización ecológica
Meaning
The development of cities in a way that is not harmful to the environment.
Example
Eco-friendly urbanization reduces environmental degradation.
La urbanización ecológica reduce la degradación ambiental.
C1 noun /dʒɛˈsteɪʃən/

gestation

gestación
Meaning
the process of carrying or being carried in the womb between conception and birth; the development of an idea or plan
Example
The gestation period of an elephant is nearly two years.
El periodo de gestación de un elefante es casi dos años.
C1 noun /ˈænərki/

anarchy

anarquía
Meaning
a state of disorder due to the absence or failure of government or authority
Example
The collapse of the regime led to anarchy in the streets.
El colapso del régimen llevó a la anarquía en las calles.
C1 noun prɪˈsɪʒ.ən ˈæɡ.rɪ.kʌl.tʃər

precision agriculture

agricultura de precisión
Meaning
The technique of conducting agricultural work using advanced technology.
Example
Precision agriculture optimizes resource use and increases efficiency.
La agricultura de precisión optimiza el uso de los recursos y aumenta la eficiencia.
C1 noun /ˈrem.nənt/

Remnant

resto
Meaning
a small remaining quantity of something; a piece of cloth left over after the main piece has been used
Example
Only a remnant of the ancient wall remains.
Solo queda un resto de la antigua muralla.
C1 verb /kʌl/

cull

seleccionar / eliminar
Meaning
to select or remove from a larger group, often to reduce numbers
Example
The farmers decided to cull the sick animals from the herd.
Los granjeros decidieron eliminar a los animales enfermos del rebaño.
C1 adjective /kweɪnt/

quaint

antiguo y pintoresco
Meaning
attractively unusual or old-fashioned
Example
They stayed in a quaint little cottage by the sea.
Ellos se alojaron en una cabaña pintoresca junto al mar.
C1 noun /ˈaɪsətəʊp/

isotope

isótopo
Meaning
Atoms of the same element with equal number of protons but different numbers of neutrons.
Example
Carbon-14 is a radioactive isotope used in dating fossils.
El carbono-14 es un isótopo radiactivo utilizado en la datación de fósiles.
C1 noun /ˈves.tɪdʒ/

Vestige

vestigio
Meaning
a trace or remnant of something that is disappearing or no longer exists
Example
No vestige of the ancient city remains.
No queda ningún vestigio de la antigua ciudad.
C1 adjective /ˈmæn.li/

Manly

viril; valiente; audaz
Meaning
having qualities traditionally associated with men; brave; courageous
Example
He showed manly courage during the crisis.
Mostró coraje viril durante la crisis.
C1 noun /maɪm/

Mime

mimo; actor de mimo
Meaning
A performer who acts without words, using only gestures and body movements
Example
The street mime entertained the crowd with his invisible box routine.
El mimo callejero entretuvo a la multitud con su rutina de caja invisible.
C1 noun /ˈdɪsənˌtɛri/

dysentery

enfermedad intestinal (diarrea con sangre y moco)
Meaning
An infection of the intestines resulting in severe diarrhea with blood and mucus.
Example
Many soldiers suffered from dysentery during the war.
Muchos soldados sufrieron de disentería durante la guerra.
C1 verb /ʃraʊd/

shroud

envolver
Meaning
to cover or hide; to wrap in cloth
Example
The mountain peak was shrouded in mist.
La cima de la montaña estaba envuelta en niebla.
C1 noun /ˈʃæmbəlz/

shambles

desorden total
Meaning
a state of complete disorder or ruin
Example
After the storm, the whole town was in shambles.
Después de la tormenta, toda la ciudad estaba en desorden total.
C1 verb /ˈkʌl.mɪ.neɪt/

culminate

culminar
Meaning
To reach the final or climactic stage of a process or activity.
Example
Years of hard work culminated in his success.
Años de trabajo arduo culminaron en su éxito.
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 noun /ˌɪmɔːrˈtæləti/

immortality

inmortalidad
Meaning
the state of living forever; eternal life or lasting fame beyond death
Example
Many ancient cultures believed that heroes could achieve immortality through great deeds.
Muchas culturas antiguas creían que los héroes podían alcanzar la inmortalidad mediante grandes hazañas.
C1 noun ˈsɪmbəlɪzəm

symbolism

simbolismo
Meaning
The use of symbols to represent ideas or qualities.
Example
The use of symbolism in the novel is masterful.
El uso de simbolismo en la novela es magistral.
C1 verb /ˈwɪð.ər/

wither

marchitar
Meaning
to dry up and die, typically used for plants
Example
The flowers will wither without enough water.
Las flores se marchitarán sin suficiente agua.
C1 adjective + noun kəˈmendəbəl ɪˈnɪʃətɪvz

commendable initiatives

iniciativas loables
Meaning
Praiseworthy efforts or actions that deserve admiration and approval.
Example
The commendable initiatives aim to raise awareness.
Las iniciativas loables tienen como objetivo aumentar la conciencia.
C1 verb /ɪnˈtɒksɪkeɪt/

intoxicate

felicidad
Meaning
to make someone lose control of their faculties or behavior due to alcohol or drugs
Example
The strong drink quickly intoxicated him.
No pudo esconder su felicidad cuando recibió el premio.
C1 verb /əbˈsɛs/

obsess

obsesionarse
Meaning
To preoccupy or fill the mind of someone continually and to an excessive degree.
Example
She tends to obsess over small details.
Ella tiende a obsesionarse con los pequeños detalles.
C1 adjective /ˈfeɪl.seɪf/

fail-safe

antifallo
Meaning
designed to prevent failure or accidents; guaranteed to work correctly
Example
The engineers installed a fail-safe mechanism in the nuclear plant.
Los ingenieros instalaron un mecanismo antifallo en la planta nuclear.
C1 noun /ɒpˈtɒmɪtrɪst/

optometrist

optometrista
Meaning
A healthcare professional who examines eyes and prescribes corrective lenses.
Example
The optometrist prescribed new glasses for her.
El optometrista le recetó nuevos anteojos.
C1 adjective /æmˈfɪb.i.əs/

Amphibious

anfibio
Meaning
able to live both on land and in water; suitable for both land and water operations
Example
The amphibious vehicle can travel on both land and water.
El vehículo anfibio puede viajar tanto en tierra como en agua.
C1 verb /plʌm/

plumb

medir la profundidad o examinar de cerca
Meaning
to measure the depth of water or examine closely
Example
They used a line to plumb the depth of the lake.
Ellos usaron una línea para medir la profundidad del lago.
C1 noun /ˌdʒɛr.iˈætrɪks/

geriatrics

geriatría
Meaning
the branch of medicine dealing with the health and care of old people
Example
He specialized in geriatrics to care for the elderly.
Él se especializó en geriatría para cuidar a los ancianos.
C1 adjective /ˈskɔːrnfəl/

Scornful

despectivo
Meaning
showing contempt or disdain; expressing scorn
Example
She gave him a scornful look when he made the rude comment.
Ella le dio una mirada desdeñosa cuando hizo el comentario grosero.
C1 noun /sɪˈkriː.ʃən/

Secretion

secreción
Meaning
a process by which substances are produced and discharged from a cell or gland
Example
Insulin secretion is crucial for blood sugar regulation.
La secreción de insulina es crucial para la regulación del azúcar en sangre.
C1 adjective, noun /ˈkeɪnaɪn/

canine

relacionado con los perros / dientes caninos
Meaning
Relating to dogs; also refers to the pointed teeth in humans and animals
Example
The police trained a canine unit for search operations.
La policía entrenó una unidad canina para las operaciones de búsqueda.
C1 adjective /ˈbær.ən/

Barren

árido; estéril; desolado; improductivo
Meaning
sterile; unable to produce; desolate; unproductive
Example
The barren desert stretched for miles without any vegetation.
El desierto árido se extendía por millas sin vegetación.
C1 verb ɪˈluː.sɪ.deɪt

elucidate

elucidar, aclarar
Meaning
make (something) clear; explain.
Example
The professor elucidated the theory with simple examples.
El profesor elucidó la teoría con ejemplos sencillos.
C1 adjective /ʌnˈvaɪəbl/

unviable

inválido
Meaning
Not capable of working successfully; not feasible or practical.
Example
The project was deemed unviable due to high costs.
El proyecto fue considerado inviable debido a los altos costos.
C1 adjective /məˈtɜːrnəl/

Maternal

maternal
Meaning
relating to a mother; motherly
Example
She showed maternal care towards the orphan child.
Ella mostró cuidado maternal hacia el niño huérfano.
C1 adjective /ˌɪn.səˈbɔːr.dɪ.nət/

insubordinate

insubordinado
Meaning
Defiant of authority; disobedient to orders.
Example
The insubordinate employee refused to follow the manager's instructions.
El empleado insubordinado se negó a seguir las instrucciones del gerente.
C1 adjective /ˌɪndɪˈspjuːtəbəl/

Indisputable

indiscutible; innegable; cierto
Meaning
impossible to deny or argue against; undeniable; certain
Example
The evidence against him was indisputable.
La evidencia en su contra era indiscutible.
C1 noun /ˈɡær.ɪ.sən/

garrison

guarnición
Meaning
A body of troops stationed in a particular location, usually to defend it.
Example
The garrison defended the fortress against the invaders.
La guarnición defendió la fortaleza contra los invasores.
C1 noun /ˌrɛspɪˈreɪʃən/

respiration

respiración
Meaning
The process of breathing or the exchange of gases in living organisms.
Example
Respiration is essential for all living beings.
La respiración es esencial para todos los seres vivos.
C1 verb /ɪnˈvɜːrt/

invert

invertir
Meaning
To turn something upside down or in the opposite position, order, or direction.
Example
He inverted the glass to let the water drain out.
Él invirtió el vaso para dejar que el agua se drenara.
C1 verb /kəmˈpjuːt/

compute

calcular
Meaning
To calculate or determine by using a computer or mathematical methods.
Example
The software can compute the total cost in seconds.
El software puede calcular el costo total en segundos.
C1 adjective /ɪɡˈzɔːstɪv/

exhaustive

exhaustivo y completo
Meaning
Fully comprehensive and including all possibilities.
Example
The report provides an exhaustive analysis of the issue.
El informe proporciona un análisis exhaustivo del problema.
C1 adjective /ˈprɛdəˌtɔri/

predatory

depredador/explotador
Meaning
Relating to animals that prey on others; exploiting or victimizing others for personal gain.
Example
The predatory bird swooped down on its prey.
El pájaro depredador se lanzó sobre su presa.
C1 noun əˈtrɒs.ɪ.tiz

atrocities

atrocidades
Meaning
Extremely wicked or cruel acts, typically involving physical violence or injury.
Example
The atrocities shocked the international community.
Las atrocidades sorprendieron a la comunidad internacional.
C1 adjective /ˈsɪnjuəs/

sinuous

sinuoso
Meaning
Having many curves, bends, or turns; winding.
Example
The hikers followed a sinuous path through the forest.
Los excursionistas siguieron un camino sinuoso a través del bosque.
C1 noun, verb /ˈliːvər/ or /ˈlɛvər/

lever

palanca, barra rígida
Meaning
a rigid bar used to move or lift heavy objects; to move something using leverage.
Example
He used a lever to lift the heavy stone.
Él usó una palanca para levantar la piedra pesada.
C1 adjective fæsˈtɪd.i.əs

fastidious

meticuloso
Meaning
Very attentive to and concerned about accuracy and detail.
Example
She is fastidious about maintaining cleanliness.
Ella es meticulosa al mantener la limpieza.
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 /ˌəʊvərɪksˌplɔɪˈteɪʃən/

overexploitation

sobreexplotación
Meaning
The unsustainable use of natural resources at a rate that exceeds their ability to regenerate, leading to depletion and environmental degradation.
Example
Overexploitation of natural resources leads to environmental degradation.
La sobreexplotación de los recursos naturales conduce a la degradación ambiental.
C1 verb /fɔːrˈɡoʊ/

forgo

renunciar
Meaning
to decide not to do or have something
Example
She decided to forgo dessert to maintain her diet.
Ella decidió renunciar al postre para mantener su dieta.
C1 adjective /ˈkrɛdɪtəbl/

creditable

digno de elogio
Meaning
Deserving praise or acknowledgment, though not necessarily outstanding.
Example
She made a creditable effort in completing the project on time.
Ella hizo un esfuerzo digno de elogio al completar el proyecto a tiempo.
C1 noun /fəˈtæləti/

fatality

fatalidad
Meaning
An occurrence of death by accident, disaster, or violence.
Example
The accident resulted in one fatality.
El accidente resultó en una fatalidad.
C1 verb /ˈdɛsɪmeɪt/

decimate

destruir
Meaning
To destroy or kill a large proportion of something.
Example
The wildfire decimated the forest.
El incendio arrasó el bosque.
C1 verb /ˈræn.sæk/

ransack

saquear
Meaning
to search a place roughly and steal or damage things
Example
Burglars ransacked the house while the family was away.
Los ladrones saquearon la casa mientras la familia estaba fuera.