decisiveness
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C1 noun dɪˈsʌɪsɪvnɪs

decisiveness

capacidad de tomar decisiones
Meaning
The ability to make decisions quickly and effectively.
Example
His decisiveness during the crisis saved the company.
Su capacidad de tomar decisiones durante la crisis salvó a la empresa.
C1 noun /ˈnaɪ.tɪŋ.ɡeɪl/

Nightingale

ruiseñor
Meaning
small songbird known for its beautiful singing, especially at night
Example
The nightingale sang sweetly in the moonlight.
El ruiseñor cantó dulcemente bajo la luz de la luna.
C1 noun /məˈnɒtəni/

monotony

monotonía
Meaning
Lack of variety and interest; tedious repetition and routine.
Example
Breaking the monotony of everyday life can improve mental health.
Romper la monotonía de la vida diaria puede mejorar la salud mental.
C1 adjective /ʌnˈkæni/

uncanny

extraño
Meaning
Strange or mysterious, especially in an unsettling way.
Example
She has an uncanny ability to predict the future.
Ella tiene una extraña habilidad para predecir el futuro.
C1 noun nɪˈmɒnɪks

mnemonics

técnica de memoria, ayudas mnemotécnicas
Meaning
A technique to aid memory; a device such as a pattern of letters, ideas, or associations
Example
Mnemonics help in remembering complex concepts easily.
Los mnemónicos ayudan a recordar conceptos complejos fácilmente.
C1 verb /dɪˈɡreɪd/

degrade

degradar
Meaning
To lower in dignity, quality, or value; to treat with disrespect or to deteriorate.
Example
Harsh words can degrade a person's confidence.
Las palabras duras pueden degradar la confianza de una persona.
C1 adjective /ˈrɛtɪsənt/

reticent

reservado
Meaning
not revealing one's thoughts or feelings readily; reserved
Example
She was reticent about her personal life.
Ella estaba reservada sobre su vida personal.
C1 adjective /ˌoʊvərˈrɔt/

overwrought

angustiado / excesivamente nervioso
Meaning
extremely agitated or nervous; excessively elaborate
Example
She was too overwrought to speak clearly after the accident.
Ella estaba demasiado angustiada para hablar claramente después del accidente.
C1 noun /ˌkɒŋɡrɪˈɡeɪʃən/

congregation

congregación
Meaning
a group of people assembled for religious worship or a common purpose
Example
The congregation gathered to hear the sermon.
La congregación se reunió para escuchar el sermón.
C1 adjective /ˈskeɪ.li/

Scaly

escamoso
Meaning
covered with scales; having a rough surface like scales
Example
The fish has scaly skin.
El pez tiene la piel escamosa.
C1 verb /ˈpæmpər/

pamper

mimar / consentir
Meaning
to treat with excessive care and attention; to spoil
Example
Parents often pamper their first child.
Los padres a menudo miman a su primer hijo.
C1 adjective /ˈtʃɛk.ərd/

checkered

a cuadros
Meaning
Having a pattern of alternating squares of different colors; also describing a past full of ups and downs or varied experiences.
Example
He had a checkered career with many highs and lows.
Él tuvo una carrera a cuadros con muchos altibajos.
C1 noun /ɪnˈdɪɡ.nə.ti/

Indignity

indignidad; humillación; deshonra;
Meaning
treatment or circumstances that cause one to feel shame or loss of dignity; humiliation
Example
She refused to suffer the indignity of being searched without proper cause.
Ella se negó a sufrir la indignidad de ser registrada sin causa justificada.
C1 adjective /ˈtɔːrtʃərəs/

torturous

tortuoso
Meaning
Extremely painful or causing great suffering; relating to or involving torture.
Example
The journey through the desert was long and torturous.
El viaje a través del desierto fue largo y tortuoso.
C1 verb /ˈstæmər/

stammer

tartamudear
Meaning
To speak with sudden involuntary pauses and a tendency to repeat the initial letters of words.
Example
The nervous student began to stammer during his speech.
El estudiante nervioso comenzó a tartamudear durante su discurso.
C1 noun /waɪld bɔːr/

Wild-Boar

jabalí salvaje
Meaning
a wild pig that lives in forests and has long curved teeth
Example
The wild boar ran through the forest quickly.
El jabalí salvaje corrió rápidamente a través del bosque.
C1 adjective /ˈædʒ.aɪl/

agile

rápido y flexible
Meaning
able to move quickly and easily; quick and adaptable in thinking or action
Example
The startup team was agile in responding to market changes.
El equipo de la startup fue ágil al responder a los cambios del mercado.
C1 noun /læps/

Lapse

fallo temporal; lapsus;
Meaning
a temporary failure of concentration, memory, or judgment; the termination of a right or privilege
Example
There was a brief lapse in security that allowed the intruder to enter the building.
Hubo un breve lapsus de seguridad que permitió al intruso entrar al edificio.
C1 noun /ˌæf.ɚˈmeɪ.ʃən/

affirmation

afirmación
Meaning
The action or process of affirming something or being affirmed; emotional support or encouragement.
Example
Daily affirmation of self-worth boosts confidence.
La afirmación diaria del autoestima aumenta la confianza.
C1 noun ɪˌməʊ.ʃəˈnæl.ɪ.ti

emotionality

emocionalidad
Meaning
The quality of being driven by emotions rather than reason; emotional responsiveness.
Example
His emotionality often influenced his decisions.
Su emocionalidad a menudo influía en sus decisiones.
C1 noun /səbˈmɪtəl/

submittal

entrega
Meaning
the act of submitting something, especially a document for consideration or approval
Example
The contractor sent the submittal to the client for approval.
El contratista envió la entrega al cliente para su aprobación.
C1 noun /ˈsɔː.dʌst/

sawdust

aserrín
Meaning
The tiny particles of wood produced by sawing or sanding.
Example
The floor was covered with sawdust from the carpentry work.
El suelo estaba cubierto con aserrín del trabajo de carpintería.
C1 verb /ˈbæbəl/

babble

balbucear
Meaning
to talk rapidly and continuously in a foolish way
Example
The baby babbles all day long.
El bebé balbucea todo el día.
C1 adjective, noun /ˈmɑːrʃən/

martian

marciano
Meaning
Related to the planet Mars; or an imaginary being from Mars.
Example
The movie showed a Martian visiting Earth.
La película mostró un marciano visitando la Tierra.
C1 verb /dɪˈtrækt/

detract

restar
Meaning
To reduce or take away the worth or value of something.
Example
His rude behavior will detract from his good reputation.
Su comportamiento grosero restará valor a su buena reputación.
C1 noun /sɔːd fɪʃ/

Sword fish

pez espada
Meaning
A large marine fish with an elongated bill resembling a sword
Example
The swordfish can swim at speeds up to 60 mph.
El pez espada puede nadar a velocidades de hasta 60 mph.
C1 noun /ˈskwɒlər/

squalor

miseria
Meaning
the state of being extremely dirty and unpleasant, especially due to poverty or neglect
Example
They lived in squalor without basic facilities.
Vivían en la miseria sin instalaciones básicas.
C1 adjective ˈsek.tər spəˈsɪf.ɪk

sector-specific

específico del sector
Meaning
Relating to or designed for a particular sector or industry.
Example
Sector-specific policies attract targeted investments.
Las políticas específicas del sector atraen inversiones dirigidas.
C1 noun /daɪˈsɛkʃən/

dissection

disección
Meaning
the act of cutting apart or analyzing something in detail, especially a body or structure
Example
The dissection of the specimen revealed important details about its structure.
La disección del espécimen reveló detalles importantes sobre su estructura.
C1 noun /ɑːˌtɪkjʊˈleɪʃən/

articulation

expresión
Meaning
The action of putting into words an idea or feeling of a specified type.
Example
His articulation during the debate impressed everyone.
Su articulación durante el debate impresionó a todos.
C1 adjective /ˈtɛmpərət/

temperate

moderado
Meaning
showing moderation or self-restraint; also describing mild climate.
Example
He is known for his temperate behavior even in stressful situations.
Es conocido por su comportamiento moderado incluso en situaciones estresantes.
C1 adjective səˈblaɪm

sublime

sublime, grandioso, majestuoso
Meaning
Of such excellence, grandeur, or beauty as to inspire great admiration or awe.
Example
The sublime beauty of the mountain landscape took my breath away.
La sublime belleza del paisaje montañoso me dejó sin aliento.
C1 noun ˌsɛlf.rɪˈstreɪnt

self-restraint

autocontrol
Meaning
The practice of restraining oneself from indulging in something, typically an impulse or desire.
Example
Practicing self-restraint helps in avoiding impulsive decisions.
Practicar el autocontrol ayuda a evitar decisiones impulsivas.
C1 adjective /diːˈsɛntrəlaɪzd/

decentralized

descentralizado
Meaning
Controlled by several local offices or authorities rather than one single one.
Example
The decentralized system allowed for more control at local levels.
El sistema descentralizado permitió un mayor control a nivel local.
C1 noun /ˈdʒuː.və.naɪl/

Juvenile

juvenil; menor
Meaning
a young person below the age of adult criminal responsibility; relating to young people
Example
The juvenile court handles cases involving young offenders under eighteen.
El tribunal juvenil maneja casos que involucran a jóvenes infractores menores de dieciocho años.
C1 adjective ˌɪn.təˈstel.ər

interstellar

entre las estrellas, interestelar, cósmico
Meaning
Occurring or situated between stars.
Example
Scientists study interstellar travel possibilities.
Los científicos estudian las posibilidades de viajes interestelares.
C1 adverb /ˈhed ɑn/

Head-on

de frente
Meaning
directly facing; in direct confrontation or collision
Example
The two cars collided head-on at the intersection.
Los dos autos colisionaron de frente en la intersección.
C1 verb /druːp/

droop

caer
Meaning
to bend or hang downward; to become weak or tired
Example
The flowers began to droop in the heat.
Las flores empezaron a caer debido al calor.
C1 verb /trʌdʒ/

trudge

caminar con esfuerzo
Meaning
To walk slowly and with heavy steps, typically because of exhaustion or harsh conditions.
Example
They had to trudge through the snow to reach the village.
Tuvieron que caminar con esfuerzo por la nieve para llegar al pueblo.
C1 noun ˌhaɪ.droʊˈpɒn.ɪks

hydroponics

hidroponía
Meaning
Growing plants using nutrient-rich water instead of soil.
Example
Hydroponics allows crops to grow without soil.
La hidroponía permite que los cultivos crezcan sin tierra.
C1 adjective /ˈtrænzvɜːrs/

transverse

transversal
Meaning
situated or lying across something
Example
The transverse road connects two highways.
La carretera transversal conecta dos autopistas.
C1 noun ˌvɛn.əˈreɪ.ʃən

veneration

veneración
Meaning
Great respect; reverence; the action of regarding with great respect or reverence.
Example
Many cultures show veneration for their ancestors.
Muchas culturas muestran veneración por sus antepasados.
C1 adjective /ˈwɔːrˌlaɪk/

warlike

bélico
Meaning
Having an aggressive or militant nature; inclined to fight or engage in war.
Example
The tribe was known for its warlike traditions.
La tribu era conocida por sus tradiciones bélicas.
C1 verb /əˈdɔːrn/

adorn

adornar
Meaning
to decorate or add beauty to something
Example
The hall was adorned with flowers for the wedding.
El salón fue adornado con flores para la boda.
C1 noun /ˈpraɪ.mər/ (US), /ˈprɪm.ər/ (UK)

primer

libro introductorio, imprimación
Meaning
A basic introductory book or a substance used to prepare a surface for painting.
Example
He read a primer on programming before starting his course.
Él leyó un libro introductorio sobre programación antes de comenzar su curso.
C1 noun /məˈtɜːrnəti/

Maternity

maternidad
Meaning
The state of being a mother; motherhood
Example
The hospital has an excellent maternity ward for new mothers.
El hospital tiene una excelente sala de maternidad para nuevas madres.
C1 noun /ˌænəlˈdʒiːzɪk/

analgesic

analgésico
Meaning
A drug or substance that relieves pain.
Example
She took an analgesic to ease her headache.
Ella tomó un analgésico para aliviar su dolor de cabeza.
C1 adjective /ˈperɪɡrɪn/

Peregrine

errante; migratorio; viajero
Meaning
wandering; traveling; migratory
Example
The peregrine falcon is known for its incredible speed.
El halcón peregrino es conocido por su increíble velocidad.
C1 adjective /ɪkˈspænsɪv/

expansive

expansivo
Meaning
covering a wide area or having a wide range of ideas or emotions
Example
They enjoyed the expansive view from the hilltop.
Disfrutaron de la vista expansiva desde la cima de la colina.
C1 noun /ˈæntlɚ/

antler

cuerno de ciervo
Meaning
The branched horns on the head of a deer or similar animal, usually shed and regrown annually.
Example
The deer’s antlers grew larger each year.
Los cuernos de ciervo crecían más grandes cada año.
C1 noun /rɪˈfaɪnəri/

refinery

refinería
Meaning
an industrial facility where raw materials are processed and purified
Example
The oil refinery processes thousands of barrels daily.
La refinería de petróleo procesa miles de barriles a diario.
C1 adverb /ˌðɛərˈɪn/

Therein

dentro de;
Meaning
in that place; in that respect
Example
The box contains many treasures, and therein lies its value.
La caja contiene muchos tesoros, y dentro de ella radica su valor.
C1 noun /ˈɔr.i.ənt/

Orient

Oriente, especialmente los países de Asia oriental
Meaning
the East, especially countries of eastern Asia; to determine one's position or direction
Example
Many spices come from the Orient.
Muchas especias vienen del Oriente.
C1 adjective /ˈsæv.i/

savvy

astuto, sabio
Meaning
Having practical knowledge and the ability to make good judgments.
Example
She is a tech-savvy entrepreneur.
Ella es una emprendedora experta en tecnología.
C1 noun /ˈnɒnʃələns/

nonchalance

despreocupación
Meaning
A relaxed and calm state, showing lack of concern or interest.
Example
She answered the tough questions with surprising nonchalance.
Ella respondió las preguntas difíciles con sorprendente despreocupación.
C1 noun /ˈmɑːrtərdəm/

Martyrdom

martirio
Meaning
The suffering of death on account of adherence to a cause or principle
Example
His martyrdom inspired countless others to join the freedom movement.
Su martirio inspiró a innumerables otros a unirse al movimiento por la libertad.
C1 verb /ˌriːəˈdʒʌst/

readjust

reajustar
Meaning
To change or move something again in order to achieve a better fit, condition, or balance.
Example
He readjusted the chair to make it more comfortable.
Él reajustó la silla para que fuera más cómoda.
C1 noun /æɡˈnɒs.tɪk/

agnostic

agnóstico
Meaning
a person who believes that nothing is known or can be known about the existence of God; uncertain in belief
Example
He described himself as an agnostic rather than an atheist.
Se describió a sí mismo como un agnóstico en lugar de un ateo.
C1 adjective /ˌhæpi ɡoʊ ˈlʌki/

happy-go-lucky

alegre, despreocupado, sin preocupaciones
Meaning
cheerfully unconcerned about the future; carefree
Example
She has a happy-go-lucky attitude and never worries about tomorrow.
Ella tiene una actitud feliz y despreocupada y nunca se preocupa por mañana.
C1 adjective ˌhaɪ.pəˈθet.ɪ.kəl

hypothetical

hipotético, supuesto, teórico
Meaning
Based on or serving as a hypothesis; supposed but not necessarily real or true.
Example
The discussion was based on hypothetical scenarios.
La discusión se basó en escenarios hipotéticos.
C1 adjective /prəˈsiːdʒərəl/

procedural

procedimental
Meaning
Relating to an established or official way of doing something; concerned with procedure.
Example
The committee followed the procedural rules strictly.
El comité siguió estrictamente las reglas procedimentales.
C1 adjective /ˈmɪnəskjuːl/

minuscule

minúsculo
Meaning
extremely small in size or importance
Example
She made only a minuscule contribution to the project.
Ella hizo solo una contribución minúscula al proyecto.
C1 verb /ɪnˈterəˌɡeɪt/

interrogate

interrogar
Meaning
to ask someone questions in a thorough and formal way; to question intensively
Example
The police interrogated the suspect for hours.
La policía interrogó al sospechoso durante horas.
C1 adjective /ˈkwɑː.rəl.səm/

Quarrelsome

pendenciero; belicoso; argumentativo
Meaning
given to arguing and fighting; argumentative and confrontational
Example
His quarrelsome nature makes it difficult to work with him.
Su naturaleza pendenciera hace que sea difícil trabajar con él.
C1 adjective /ˌɔːrnəˈmɛntl/

ornamental

ornamental
Meaning
Serving as decoration; decorative rather than functional.
Example
The garden was filled with ornamental plants.
El jardín estaba lleno de plantas ornamentales.
C1 adjective/noun /ˈsʌkjələnt/

succulent

jugoso
Meaning
Juicy or full of juice; also refers to a plant with thick, fleshy leaves adapted to storing water.
Example
The steak was so succulent that everyone enjoyed it.
El filete estaba tan jugoso que todos lo disfrutaron.
C1 verb /aʊtˈlɪv/

outlive

sobrevivir
Meaning
to live longer than someone or something else
Example
She outlived all her siblings.
Ella vivió más tiempo que todos sus hermanos.
C1 noun /ˈmjuːtɪni/

mutiny

motín
Meaning
an open rebellion against authority, especially by soldiers or sailors
Example
The sailors staged a mutiny against their captain.
Los marineros organizaron un motín contra su capitán.
C1 noun /wæks ɡɔːrd/

Wax Gourd

calabaza cerosa
Meaning
a large white or green gourd with waxy skin, commonly used in Asian cooking
Example
The wax gourd soup is very nutritious and helps with digestion.
La sopa de calabaza cerosa es muy nutritiva y ayuda con la digestión.
C1 verb /ɪnˈdaɪt/

indict

acusar
Meaning
to formally accuse someone of committing a serious crime
Example
The grand jury decided to indict the politician for corruption.
El gran jurado decidió acusar al político por corrupción.
C1 noun /ˈhɒl.ə.kɔːst/

holocaust

holocausto
Meaning
A large-scale destruction, especially by fire; historically, the genocide of Jews during World War II.
Example
Millions of people perished during the Holocaust.
Millones de personas perecieron durante el Holocausto.
C1 noun /ˌæmplɪfɪˈkeɪʃən/

amplification

amplificación
Meaning
the act or process of making something stronger, louder, or more intense; an expansion or elaboration of details
Example
The microphone provides amplification of the speaker’s voice.
El micrófono proporciona amplificación de la voz del orador.
C1 verb /ˈɪnsjuleɪt/

insulate

aislar
Meaning
To protect something by covering it, especially to prevent heat, sound, or electricity from escaping or entering.
Example
The house was insulated to reduce heating costs.
La casa fue aislada para reducir los costos de calefacción.
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 verb /splaɪs/

splice

unir
Meaning
to join two pieces of rope, film, or other material by weaving or attaching them together
Example
The technician spliced the two wires to restore the connection.
El técnico unió los dos cables para restaurar la conexión.
C1 adjective,noun /kənˈtɪn.dʒənt/

contingent

dependiente / contingente
Meaning
dependent on something else; a group of people representing an organization
Example
Attendance is contingent on prior registration. / A contingent of students attended the conference.
La asistencia depende de la inscripción previa. / Un contingente de estudiantes asistió a la conferencia.
C1 adjective /ˈfjuː.dəl/

feudal

feudal
Meaning
relating to the system of feudalism, a medieval social system based on land ownership and obligations
Example
The castle is a remnant of the feudal era.
El castillo es un vestigio de la era feudal.
C1 adjective /ˈfɔːrmətɪv/

formative

formativo
Meaning
Having a lasting influence on a person's development or character.
Example
Childhood is often described as a formative stage in life.
La infancia a menudo se describe como una etapa formativa en la vida.
C1 noun ˌtoʊ.kə.nɪˈzeɪ.ʃən

tokenization

El proceso de dividir el texto en unidades más pequeñas como palabras, frases o símbolos para su análisis.
Meaning
The process of breaking text into smaller units like words, phrases, or symbols for analysis.
Example
NLP uses tokenization to break text into smaller units.
NLP utiliza la tokenización para dividir el texto en unidades más pequeñas.
C1 adjective /məˈdʒen.tə/

Magenta

color magenta
Meaning
a bright purplish-red color
Example
She wore a beautiful magenta dress to the party.
Ella usó un hermoso vestido magenta para la fiesta.
C1 noun /ˈbʊl.ək/

Bullock

buey
Meaning
a young bull; a castrated bull used for farm work
Example
The farmer used a bullock to plow the field.
El agricultor usó un buey para arar el campo.
C1 noun /ˌɛtɪˈmɒlədʒi/

etymology

etimología
Meaning
The study of the origin of words and how their meanings and forms have evolved.
Example
The etymology of the word 'salary' comes from the Latin word for salt.
La etimología de la palabra 'salario' proviene de la palabra latina para sal.
C1 verb /ˈeɪ.li.ə.neɪt/

alienate

alienar
Meaning
To make someone feel isolated or estranged; to cause someone to become unfriendly.
Example
His rude behavior alienated many of his friends.
Su comportamiento grosero alienó a muchos de sus amigos.
C1 verb/noun /ˈswæɡ.ər/

swagger

presunción
Meaning
To walk or behave in a very confident and arrogant way.
Example
He swaggered into the room as if he owned the place.
Entró en la habitación como si fuera dueño del lugar.
C1 noun ˌæp.əˈreɪ.təs

apparatus

aparato
Meaning
The technical equipment or machinery needed for a particular activity or purpose.
Example
The apparatus was designed to be eco-friendly.
El aparato fue diseñado para ser ecológico.
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 /dɪˈspɛns/

dispense

distribuir
Meaning
To distribute or provide something, especially in portions.
Example
The machine dispenses clean drinking water.
La máquina dispensa agua potable limpia.
C1 verb /əˈtjuːn/

attune

sintonizar
Meaning
to make someone or something aware of or responsive to something; to adjust or harmonize
Example
She quickly attuned herself to the needs of her new team.
Ella se sintonizó rápidamente con las necesidades de su nuevo equipo.
C1 noun /ˈnɔːrməlsi/

normalcy

normalidad
Meaning
The condition of being normal; a return to usual or expected conditions.
Example
After the flood, the town struggled to regain a sense of normalcy.
Después de la inundación, la ciudad luchó por recuperar un sentido de normalidad.
C1 adjective /ʌnˈvɔɪst/

unvoiced

no expresado
Meaning
not expressed in speech; in phonetics, a sound produced without vocal cord vibration
Example
The student kept her opinion unvoiced during the meeting.
La estudiante mantuvo su opinión no expresada durante la reunión.
C1 verb /sərˈpæs/

surpass

superar
Meaning
to exceed or go beyond
Example
Her performance surpassed all expectations.
Su rendimiento superó todas las expectativas.
C1 noun njuːˈtræl.ə.ti

neutrality

neutralidad
Meaning
The state of not supporting or helping either side in a conflict, disagreement, etc.; impartiality.
Example
Neutrality fosters trust in decision-making.
La neutralidad fomenta la confianza en la toma de decisiones.
C1 adjective /ɪnˈses.ənt/

incessant

incesante
Meaning
Continuing without pause or interruption; constant.
Example
The incessant noise from the construction site made it hard to concentrate.
El ruido incesante del sitio de construcción dificultaba concentrarse.
C1 noun, verb /wɪf/

whiff

leve olor
Meaning
A brief, faint smell or puff of air; to get a quick smell of something.
Example
I caught a whiff of perfume as she passed by.
Sentí un leve olor a perfume mientras ella pasaba.
C1 noun /wʊd ˈæp.əl/

Wood Apple

manzana de madera
Meaning
a hard-shelled tropical fruit with aromatic pulp used in beverages and medicine
Example
The wood apple has a hard shell but sweet pulp inside.
La manzana de madera tiene una cáscara dura pero pulpa dulce en su interior
C1 noun /ˈklæmər/

clamor

alboroto
Meaning
a loud and confused noise, especially of people shouting insistently
Example
The clamor of the protesting crowd filled the square.
El alboroto de la multitud que protestaba llenó la plaza.
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 adjective /ˈstraɪ.dənt/

strident

estridente, ruidoso
Meaning
loud and harsh; presenting a point of view in a forceful way
Example
His strident voice made the debate uncomfortable.
Su voz estridente hizo que el debate fuera incómodo.
C1 noun /ˈpɔː.pəs/

Porpoise

delfín
Meaning
a small toothed whale with a low triangular dorsal fin and a blunt rounded snout
Example
The porpoise jumped gracefully out of the water.
El delfín saltó grácilmente fuera del agua.
C1 noun /ˈpɔːpər/

pauper

mendigo
Meaning
A very poor person.
Example
The pauper begged for food on the street corner.
El mendigo pidió comida en la esquina de la calle.
C1 noun /ˈhæŋ.ər/

Hangar

hangar
Meaning
a large building with extensive floor area, typically for housing aircraft; an aircraft shelter
Example
The airplane was stored safely in the hangar during the severe thunderstorm.
El avión fue guardado de forma segura en el hangar durante la tormenta severa.
C1 adjective /ˈɑːtfəl/

Artful

astuto; hábil; ingenioso
Meaning
clever or skillful, especially in a cunning way
Example
She gave an artful answer that avoided the real question.
Ella dio una respuesta astuta que evitó la verdadera pregunta.
C1 phrase ˌbaɪ.oʊ.daɪˈvɜː.sɪ.ti ˌprez.əˈveɪ.ʃən

biodiversity preservation

preservación de la biodiversidad
Meaning
The protection and conservation of the variety of life in all its forms, including different species, genetic diversity, and ecosystems.
Example
Biodiversity preservation is critical for ecological balance.
La preservación de la biodiversidad es crítica para el equilibrio ecológico.
C1 noun /ˌbɪbliˈɒɡrəfi/

bibliography

bibliografía
Meaning
a list of books, articles, or other sources used or referred to in scholarly work
Example
The report includes a detailed bibliography at the end.
El informe incluye una bibliografía detallada al final.
C1 adjective /ˈɔːrdɪnəl/

ordinal

ordinal
Meaning
Relating to the order or position of something in a sequence (first, second, third, etc.).
Example
The ordinal number 'third' indicates position in a sequence.
El número ordinal 'tercero' indica la posición en una secuencia.
C1 adjective /dɪˈskriːt/

discrete

discreto
Meaning
individually separate and distinct
Example
The course is divided into three discrete modules.
El curso está dividido en tres módulos discretos.
C1 adjective /ˌɪnkənˈkluːsɪv/

inconclusive

inconcluso
Meaning
Not leading to a definite result or decision.
Example
The investigation remained inconclusive due to a lack of evidence.
La investigación permaneció inconclusa debido a la falta de evidencia.
C1 adjective /ˈdiːviəs/

devious

astuto
Meaning
Skillful at using underhanded tactics to achieve goals; not straightforward.
Example
He used a devious plan to gain control of the company.
Usó un plan astuto para ganar el control de la empresa.
C1 verb /ˈsɪmjʊˌleɪt/

simulate

simular
Meaning
to imitate the appearance, character, or behavior of something; to pretend or reproduce conditions artificially
Example
The pilot had to simulate an emergency landing during training.
El piloto tuvo que simular un aterrizaje de emergencia durante el entrenamiento.
C1 verb /səbˈstænʃieɪt/

substantiate

substanciar
Meaning
To provide evidence to support or prove the truth of something.
Example
The lawyer worked to substantiate the claims with solid evidence.
El abogado trabajó para substanciar las reclamaciones con pruebas sólidas.
C1 noun /ˈrʌmpəs/

Rumpus

alboroto; ruido; escándalo
Meaning
a noisy disturbance; an uproar or commotion
Example
The children caused quite a rumpus in the playground.
Los niños causaron bastante alboroto en el patio de recreo.
C1 adjective /ʌnˈkwaɪ.ət/

Unquiet

inquieto; ansioso; perturbado
Meaning
restless; unable to remain still or quiet; anxious or troubled
Example
She spent an unquiet night worrying about the exam results.
Pasó una noche inquieta preocupada por los resultados del examen.
C1 adverb/noun /ˌhɪərˈæftər/

hereafter

a partir de ahora / más allá
Meaning
from now on; in the future; also refers to life after death.
Example
Hereafter, all reports must be submitted electronically.
A partir de ahora, todos los informes deben enviarse electrónicamente.
C1 adjective /ˈloʊli/

lowly

humilde
Meaning
humble in status, position, or manner
Example
She rose from a lowly position to become the company's CEO.
Ella subió de una posición humilde a ser la CEO de la empresa.
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 adjective /ˈpraɪ.məl/

primal

primitivo, esencial
Meaning
Relating to the earliest stage of development; essential or fundamental.
Example
Fear is one of the most primal emotions humans experience.
El miedo es una de las emociones más primarias que los humanos experimentan.
C1 noun ˌdep.əˈzɪʃ.ən

deposition

deposición, el proceso de depositar algo
Meaning
The action of depositing something; the laying down of matter by a natural process.
Example
River deposition leads to the formation of new landmasses.
La deposición de un río lleva a la formación de nuevas masas de tierra.
C1 adjective, verb /ɪɡˈzɛmpt/

exempt

exento
Meaning
Free from an obligation or liability imposed on others.
Example
Students with high grades are exempt from the final exam.
Los estudiantes con altas calificaciones están exentos del examen final.
C1 verb /əkˈsɛntʃueɪt/

accentuate

acentuar
Meaning
to emphasize or make something more noticeable
Example
The lighting accentuated the beauty of the painting.
La iluminación acentuó la belleza de la pintura.
C1 noun speɪst ˌrep.ɪˈtɪʃ.ən

spaced repetition

repetición espaciada
Meaning
A learning technique that involves reviewing information at increasing intervals to improve long-term retention.
Example
Spaced repetition helps in long-term memory retention.
La repetición espaciada ayuda a retener la memoria a largo plazo.
C1 verb θwɔːt

thwart

frustrar
Meaning
Prevent (someone) from accomplishing something; oppose successfully.
Example
His efforts to thwart the proposal were unsuccessful.
Sus esfuerzos para frustrar la propuesta no tuvieron éxito.