sequester
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C1 verb sɪˈkwɛstər

sequester

aislar, esconder
Meaning
To isolate or hide away.
Example
The carbon captured by trees can be sequestered for years.
El carbono capturado por los árboles puede ser aislado durante años.
C1 adjective /ˈstrɛnjuəs/

strenuous

arduo
Meaning
Requiring or using great effort and energy.
Example
Climbing the mountain was a strenuous task.
Escalar la montaña fue una tarea ardua.
C1 noun ˈstræt.ə.sfɪər

stratosphere

estratósfera
Meaning
The layer of the earth's atmosphere above the troposphere, extending to about 50 km above the earth's surface.
Example
The stratosphere provides a unique environment.
La estratósfera proporciona un entorno único.
C1 noun /ˈstɪm.jʊ.laɪ/

stimuli

estímulo
Meaning
Things that create reactions or provide motivation.
Example
Bright light and loud sounds are common stimuli for alertness.
La luz brillante y los sonidos fuertes son estímulos comunes para la alerta.
C1 noun /ˌsɛnsəˈbɪləti/

Sensibility

sensibilidad
Meaning
the ability to appreciate and respond to complex emotional or aesthetic influences; sensitivity
Example
Her artistic sensibility made her appreciate fine details in paintings.
Su sensibilidad artística la hizo apreciar los detalles finos en las pinturas.
C1 noun, adjective, verb /ʃæm/

sham

farsa
Meaning
something that is not what it appears to be; a false or fake thing; to pretend
Example
The deal turned out to be a sham.
El trato resultó ser una farsa.
C1 noun /ˈskævɪndʒər/

scavenger

carroñero / recolector de basura
Meaning
an animal or person that feeds on dead or discarded material
Example
Vultures are natural scavengers that clean up the environment.
Los buitres son escavengers naturales que limpian el medio ambiente.
C1 noun /ˈsækrɪlɪdʒ/

sacrilege

sacrilegio
Meaning
Violation or misuse of what is regarded as sacred.
Example
Stealing from the temple was considered an act of sacrilege.
Robar del templo se consideraba un acto de sacrilegio.
C1 noun /ˈstjuːpər/

stupor

estupor
Meaning
a state of near-unconsciousness or insensibility
Example
He remained in a stupor after hearing the shocking news.
Él permaneció en un estupor después de escuchar la noticia impactante.
C1 noun /ˈstaɪləs/

stylus

estilógrafo
Meaning
a small tool used for writing, drawing, or touching screens
Example
She used a stylus to draw on her tablet.
Usó un estilógrafo para dibujar en su tableta.
C1 noun səˈsteɪ.nə.bəl tekˈnɒl.ə.dʒi

sustainable technology

tecnología sostenible
Meaning
Technology designed to meet present needs without compromising future generations' ability to meet their needs.
Example
Sustainable technology ensures a cleaner future.
La tecnología sostenible garantiza un futuro más limpio.
C1 adjective /ˈstɛlər/

stellar

excepcional
Meaning
Relating to stars; outstanding or excellent.
Example
She gave a stellar performance in the play.
Ella dio una actuación excepcional en la obra.
C1 adjective /stjuːˈpɛndəs/

stupendous

asombroso
Meaning
extremely impressive; amazing in size, degree, or excellence
Example
The magician’s performance was simply stupendous.
La actuación del mago fue simplemente asombrosa.
C1 noun /ˈʃʊɡ.ər ˈkæn.di/

Sugar candy

caramelo de azúcar
Meaning
crystallized sugar formed into small pieces; rock candy made from sugar syrup
Example
The children enjoyed eating colorful sugar candy at the festival.
Los niños disfrutaron comer dulces de azúcar coloridos en el festival.
C1 adjective /ˈspɛktrəl/

spectral

espectral
Meaning
Relating to a ghost or specter; ghostly. Also relating to a spectrum.
Example
The old mansion had a spectral atmosphere at night.
La vieja mansión tenía una atmósfera espectral por la noche.
C1 noun sælˈveɪʃən

salvation

salvación
Meaning
Deliverance from sin and its consequences, believed by Christians to be brought about by faith in Christ.
Example
The story revolves around the theme of salvation.
La historia gira en torno al tema de la salvación.
C1 noun /stents/

stents

stents
Meaning
Small mesh tubes used to treat narrow or blocked arteries.
Example
Stents were successfully placed using robotic techniques.
Los stents fueron colocados con éxito utilizando técnicas robóticas.
C1 noun, adjective /ˈsɒlvənt/

solvent

disolvente, capaz de pagar deudas
Meaning
a liquid that dissolves other substances; also means able to pay debts
Example
Acetone is a common solvent used in laboratories.
El acetona es un disolvente común usado en laboratorios.
C1 noun /ˈsɜːrtʃɑːrdʒ/

surcharge

recargo adicional
Meaning
an additional charge or payment added to the usual cost
Example
The airline ticket had a fuel surcharge added to it.
El boleto de avión tenía un recargo por combustible agregado.
C1 adjective /ˈskræpi/

scrappy

peleador / desordenado
Meaning
Determined and willing to fight or argue; also messy or disorganized.
Example
Despite being small, he was a scrappy fighter.
A pesar de ser pequeño, era un peleador audaz.
C1 adjective /ˈsɛm.ɪ.nəl/

seminal

felicidad
Meaning
Strongly influencing later developments; highly original and influential.
Example
His seminal book changed the course of modern philosophy.
No pudo ocultar su felicidad cuando recibió el premio.
C1 adjective skiˈmæt.ɪk

Schematic

relacionado con un esquema o de forma resumida
Meaning
Presenting some framework or concept briefly
Example
The engineer provided a schematic diagram of the project.
El ingeniero proporcionó un diagrama esquemático del proyecto.
C1 verb /ˈstaɪmi/

stymie

obstruir
Meaning
to prevent or hinder the progress of something
Example
The new regulations could stymie small businesses.
Las nuevas regulaciones podrían obstaculizar a las pequeñas empresas.
C1 verb /ˈsælvɪdʒ/

salvage

salvar
Meaning
To save something from loss, damage, or destruction.
Example
They managed to salvage some goods from the fire.
Lograron salvar algunos bienes del incendio.
C1 noun səbˈsɪs.təns

subsistence

subsistencia
Meaning
The action or fact of maintaining or supporting oneself at a minimum level.
Example
Many farmers depend on subsistence agriculture.
Muchos agricultores dependen de la agricultura de subsistencia.
C1 adjective /ˈsɪlkən/

Silken

de seda; suave; brillante;
Meaning
made of silk; smooth and soft like silk
Example
She wore a beautiful silken dress to the party.
Ella llevaba un hermoso vestido de seda a la fiesta.
C1 adjective /ˌsæŋktɪˈmoʊniəs/

sanctimonious

hipócrita y moralista
Meaning
Making a show of being morally superior to others; hypocritically pious.
Example
He gave a sanctimonious speech about honesty while he himself was corrupt.
Él dio un discurso hipócrita sobre la honestidad mientras él mismo era corrupto.
C1 noun səˈfɪʃənsi

sufficiency

suficiencia
Meaning
The condition of being adequate or enough; adequacy.
Example
The sufficiency of food supply is critical for survival.
La suficiencia del suministro de alimentos es crítica para la supervivencia.
C1 noun /stɛlθ/

stealth

sigilo, moverse en secreto
Meaning
The act of moving, doing, or achieving something quietly and secretly.
Example
The cat moved with stealth towards its prey.
El gato se movió sigilosamente hacia su presa.
C1 adjective /ˌsɛlf ɪˈfeɪsɪŋ/

self-effacing

modesto
Meaning
not drawing attention to oneself; modest
Example
Despite his success, he remained self-effacing and humble.
A pesar de su éxito, él se mantuvo modesto y humilde.
C1 adjective /ˌsuːɪˈsaɪdəl/

Suicidal

suicida
Meaning
relating to or having thoughts of killing oneself; extremely dangerous or harmful
Example
The reckless driving was suicidal behavior.
La conducción imprudente fue un comportamiento suicida.
C1 adjective /ˈseɪlaɪn/

Saline

salino; relacionado con agua salada
Meaning
containing salt; salty; relating to salt water
Example
The saline solution is used for medical treatments.
La solución salina se usa para tratamientos médicos.
C1 verb /ˈstaɪfəld/

stifled

sofocar
Meaning
to suppress, hold back, or prevent something from happening
Example
He stifled a laugh during the serious meeting.
Él sofocó una risa durante la reunión seria.
C1 noun /ˈskeɪp.ɡəʊt/

Scapegoat

chivo expiatorio
Meaning
a person who is blamed for the wrongdoings, mistakes, or faults of others
Example
He became the scapegoat for the team's poor performance.
Se convirtió en el chivo expiatorio del pobre rendimiento del equipo.
C1 noun /ˈsʌm.ɪt əv ðə ˈfjuː.tʃər/

Summit of the Future

Cumbre del futuro
Meaning
A high-level conference focused on addressing future challenges and opportunities.
Example
The Summit of the Future addressed global challenges.
La Cumbre del Futuro abordó los desafíos globales.
C1 noun /ˈspɔɪlˌspɔːrt/

spoilsport

aguafiestas
Meaning
A person who ruins other people's enjoyment or fun.
Example
Don't be a spoilsport and let us enjoy the party.
No seas un aguafiestas y déjanos disfrutar de la fiesta.
C1 noun /ˈsed.ɪ.mənt/

Sediment

sedimento
Meaning
matter that settles to the bottom of a liquid; particles deposited by water or wind
Example
The river carried sediment downstream during the flood.
El río llevó sedimento río abajo durante la inundación.
C1 noun /ˈstɔːrhaʊs/

storehouse

almacén
Meaning
A place where goods, supplies, or valuables are stored; a repository
Example
The warehouse acted as a storehouse for all the imported goods.
El almacén actuaba como un storehouse para todos los productos importados.
C1 noun /stɪnt/

stint

trabajo temporal
Meaning
a period of time spent doing a particular job or activity
Example
She did a short stint as a teacher before moving abroad.
Ella hizo un corto trabajo como profesora antes de mudarse al extranjero.
C1 adjective /ʃruːd/

Shrewd

astuto; inteligente; perspicaz
Meaning
having or showing sharp powers of judgment; astute
Example
The shrewd businessman made a profitable deal in the competitive market.
El astuto hombre de negocios hizo un trato rentable en el mercado competitivo.
C1 noun, verb /ˈskʌf.əl/

scuffle

pelea/disputa
Meaning
a short, confused fight or struggle; to engage in such a fight
Example
Two players scuffled on the field after the foul.
Dos jugadores se pelearon en el campo después de la falta.
C1 verb/noun /skɒtʃ/

scotch

poner fin / whisky escocés
Meaning
to put an end to something; also a type of whisky
Example
The report scotched the rumors of a merger.
El informe puso fin a los rumores sobre una fusión.
C1 verb /ˈstɪp.jʊ.leɪt/

stipulate

establecer
Meaning
to demand or specify a condition in an agreement or contract
Example
The contract stipulates that payment must be made within 30 days.
El contrato estipula que el pago debe realizarse dentro de 30 días.
C1 noun /skraɪb/

scribe

escriba
Meaning
a person who writes documents, especially in ancient times; a professional copyist
Example
In ancient Egypt, scribes recorded important events.
En el antiguo Egipto, los escribas registraron eventos importantes.
C1 noun /ˌsɛlfsəˈfɪʃənsi/

Self-sufficiency

autosuficiencia
Meaning
the ability to supply one's own needs without external assistance; independence
Example
The farm achieved complete self-sufficiency in food production.
La granja logró la autosuficiencia completa en la producción de alimentos.
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 /ˈsɒnɪt/

sonnet

soneto
Meaning
A poem of 14 lines using formal rhyme schemes, often about love.
Example
Shakespeare wrote many famous sonnets about love and beauty.
Shakespeare escribió muchos sonetos famosos sobre el amor y la belleza.
C1 verb /smɪr/

smear

untar / difamar
Meaning
to spread or apply a substance messily; to damage someone's reputation with false or unfair words
Example
The child smeared paint across the wall.
El niño untó pintura en la pared.
C1 verb /səbˈdjuː/

subdue

someter
Meaning
To bring under control, especially by force; to overcome or quiet.
Example
The army was able to subdue the rebellion quickly.
El ejército pudo someter la rebelión rápidamente.
C1 noun /ˈstɛə.rɪ.əʊˌtaɪ.pɪŋ/

stereotyping

estereotipar
Meaning
A widely held but fixed and oversimplified image or idea of a particular type of person or thing.
Example
Stereotyping people based on their race is harmful.
Estereotipar a las personas según su raza es perjudicial.
C1 noun /sleɪ/

sleigh

trineo
Meaning
A vehicle pulled by horses or reindeer over snow or ice.
Example
Children were excited to ride in the sleigh through the snowy village.
Los niños estaban emocionados de montar en el trineo por el pueblo nevado.
C1 verb /ˈslækən/

slacken

aflojar
Meaning
to make or become less tight, less active, or slower
Example
The driver slackened his speed as he approached the village.
El conductor redujo su velocidad al acercarse al pueblo.
C1 adjective ˈskruː.pjʊ.ləs

scrupulous

escrupuloso
Meaning
Diligent, thorough, and extremely attentive to details; having moral integrity; acting in strict regard for what is considered right or proper.
Example
He is known for being scrupulous in his work.
Es conocido por ser escrupuloso en su trabajo.
C1 noun /ˈʃɜːrbət/

sherbet

sorbete
Meaning
a sweet flavored drink or a frozen dessert made from sweetened fruit juice
Example
On hot days, she enjoys a glass of lemon sherbet.
En los días calurosos, disfruta de un vaso de sorbete de limón.
C1 adjective /ˌsækrɪˈfɪʃəl/

sacrificial

sacrificial
Meaning
Relating to or involving sacrifice.
Example
The lamb was used as a sacrificial offering in the ritual.
El cordero fue utilizado como una ofrenda sacrificial en el ritual.
C1 verb /ˈstɪntɪŋ/

stinting

dar con tacañería
Meaning
to supply sparingly or with restrictions
Example
He never stinting his efforts to help the poor.
Él nunca escatima esfuerzos para ayudar a los pobres.
C1 adjective /ˈsteɪtli/

stately

majestuoso y digno
Meaning
Having a dignified, majestic, and impressive appearance or manner.
Example
The stately mansion stood at the end of the long driveway.
La majestuosa mansión se encontraba al final del largo camino de entrada.
C1 noun /ˈsəʊdiəm/

sodium

sodio
Meaning
a soft, silver-white chemical element that is highly reactive and found in salt.
Example
Sodium is an essential element for maintaining fluid balance in the body.
El sodio es un elemento esencial para mantener el equilibrio de líquidos en el cuerpo.
C1 verb /səbˈsaɪd/

subside

disminuir
Meaning
to become less intense, violent, or severe; to sink or fall to a lower level
Example
After the storm, the floodwaters began to subside.
Después de la tormenta, las aguas de la inundación comenzaron a disminuir.
C1 verb /ˈskruː.tɪ.naɪz/

scrutinize

examinar o inspeccionar de cerca y a fondo
Meaning
Examine or inspect closely and thoroughly.
Example
The scientist scrutinized the data before publishing his findings.
El científico examinó los datos antes de publicar sus hallazgos.
C1 adjective /ˈspeɪʃəl/

spatial

espacial
Meaning
relating to space or the position, area, and size of things
Example
The scientist studied the spatial arrangement of stars.
El científico estudió la disposición espacial de las estrellas.
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 /ˈskwiːmɪʃ/

squeamish

fácilmente propenso a sentirse enfermo, mareado o disgustado
Meaning
easily made to feel sick, faint, or disgusted
Example
She felt squeamish at the sight of blood.
Se sintió mareada al ver sangre.
C1 adjective /swɑːv/

suave

atractivo y refinado
Meaning
charming, confident, and elegant, often in a smooth or polished way
Example
He was a suave gentleman who impressed everyone at the party.
Era un caballero refinado que impresionó a todos en la fiesta.
C1 noun /ˈsʌn.stroʊk/

Sunstroke

golpe de calor
Meaning
a serious condition caused by overheating from prolonged exposure to high temperatures
Example
The worker suffered from sunstroke after working outside all day.
El trabajador sufrió un golpe de calor después de trabajar afuera todo el día.
C1 noun /ˈsæŋk.ʃən/

Sanction

sanción
Meaning
official permission or approval; a penalty for disobeying a rule
Example
The government imposed economic sanctions on the country.
El gobierno impuso sanciones económicas al país.
C1 noun স্ক্রোলিং অ্যাডিকশন

scrolling addiction

adicción al desplazamiento
Meaning
A compulsive need to continuously scroll through content on digital devices, particularly smartphones and social media platforms.
Example
Scrolling addiction is a growing concern among smartphone users.
La adicción al desplazamiento es una preocupación creciente entre los usuarios de teléfonos inteligentes.
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 /ˈsætʃəˌreɪt/

saturate

saturar
Meaning
to fill completely with something until no more can be absorbed
Example
The heavy rain saturated the ground within minutes.
La lluvia intensa saturó el suelo en minutos.
C1 adjective /ˈsɪm.jʊ.leɪ.tɪd/

simulated

simulado
Meaning
Artificially created to look real but not actually real.
Example
The pilot trained in a simulated flight environment.
El piloto entrenó en un ambiente de vuelo simulado.
C1 adjective /ˈstrætɪfaɪd/

stratified

estratificado
Meaning
arranged or classified in layers or strata
Example
Society in the past was highly stratified based on class and wealth.
La sociedad en el pasado estaba altamente estratificada según la clase y la riqueza.
C1 noun /sʌˈmeɪʃən/

summation

suma, resumen
Meaning
The process of adding things together; a summary of points.
Example
The lawyer gave a powerful summation of the case.
El abogado dio un poderoso resumen del caso.
C1 noun /ʃraɪn/

Shrine

santuario; templo; lugar sagrado
Meaning
a holy or sacred place dedicated to a specific deity, ancestor, hero, or saint
Example
Pilgrims visit the shrine to pray for good health.
Los peregrinos visitan el santuario para rezar por buena salud.
C1 adjective /skəˈlæstɪk/

scholastic

escolar
Meaning
Relating to schools, education, or academic learning.
Example
The school organizes scholastic competitions every year.
La escuela organiza competencias escolares cada año.
C1 verb /ˈsʌkɪŋ/

sucking

chupar
Meaning
Drawing in a liquid, air, or other substance through the mouth or a tube by creating a vacuum; also used figuratively for something unpleasant or ineffective
Example
The baby is sucking on a pacifier.
El bebé está chupando un chupete.
C1 noun /ˈstætʃər/

stature

estatura, prestigio
Meaning
A person's natural height or their reputation and importance.
Example
Her intellectual stature made her a respected figure in academia.
Su estatura intelectual la convirtió en una figura respetada en el mundo académico.
C1 noun /ˈsɜːrmən/

sermon

sermón
Meaning
A religious discourse delivered by a preacher, often offering moral instruction or spiritual guidance.
Example
The pastor gave a moving sermon about compassion and forgiveness.
El pastor dio un sermón conmovedor sobre la compasión y el perdón.
C1 verb, adjective, noun /spruːs/

spruce

arreglar / un tipo de árbol
Meaning
to make neat or tidy in appearance; also refers to an evergreen tree
Example
He spruced up his room before the guests arrived.
Él arregló su habitación antes de que llegaran los invitados.
C1 noun ˈsɒl.vən.si

solvency

la posesión de activos en exceso de pasivos; capacidad para pagar deudas
Meaning
The possession of assets in excess of liabilities; ability to pay debts.
Example
The company's solvency improved after restructuring.
La solvencia de la empresa mejoró después de la reestructuración.
C1 adjective /ˈskrʌfi/

Scruffy

desaliñado o desordenado en apariencia; sucio y desgastado
Meaning
untidy or unkempt in appearance; shabby and worn
Example
The scruffy old dog wandered through the streets looking for food.
El perro desaliñado caminó por las calles buscando comida.
C1 verb /ʃʌn/

Shun

evitar
Meaning
to deliberately avoid or stay away from someone or something
Example
He shuns public attention and prefers privacy.
Él evita la atención pública y prefiere la privacidad.
C1 adjective /ˈskrɪptʃərəl/

scriptural

escritural
Meaning
Relating to or contained in the scriptures or holy writings.
Example
The priest gave a scriptural reference during the sermon.
El sacerdote dio una referencia escritural durante el sermón.
C1 noun /ˌsɛrənˈdɪpɪti/

serendipity

serendipia
Meaning
The occurrence of events by chance in a happy or beneficial way.
Example
Finding that old photo album was pure serendipity.
Encontrar ese viejo álbum de fotos fue pura serendipia.
C1 noun /ˈswiːt.miːt/

Sweetmeat

dulce
Meaning
a small piece of confectionery or candy; a sweet delicacy
Example
The children enjoyed the traditional sweetmeats during the festival.
Los niños disfrutaron de los dulces tradicionales durante el festival.
C1 noun ˌsætʃəˈreɪʃən

saturation

saturación
Meaning
The state of being saturated; the degree or extent to which something is dissolved or absorbed
Example
The saturation of the market with similar products reduced sales.
La saturación del mercado con productos similares redujo las ventas.
C1 noun /ˈsaɪnəs/

sinus

seno
Meaning
A cavity within a bone or tissue, especially those in the bones of the face connected with the nasal cavities.
Example
He suffered from a sinus infection that caused headaches.
Él sufrió de una infección sinusal que le causó dolor de cabeza.
C1 noun /ˌstætʃuˈɛt/

statuette

estatuilla
Meaning
A small statue, usually decorative or artistic.
Example
The artist won a gold statuette for his work.
El artista ganó una estatuilla de oro por su trabajo.
C1 noun /ˈsɔːjər/

Sawyer

aserrador
Meaning
a person who saws wood, especially as an occupation
Example
The skilled sawyer cut the logs into planks.
El hábil aserrador cortó los troncos en tablones.
C1 noun, verb /strænd/

strand

hilo / varado
Meaning
Noun: A single thin length of thread, wire, or similar. Verb: To leave someone or something without a way of moving or leaving.
Example
The storm stranded many tourists on the island.
La tormenta dejó a muchos turistas varados en la isla.
C1 verb /sɪˈdjuːs/

seduce

seducir
Meaning
to attract someone into doing something, especially something they might not normally do
Example
The advertisement was designed to seduce customers into buying luxury products.
El anuncio estaba diseñado para seducir a los clientes a comprar productos de lujo.
C1 adjective /snaɪd/

snide

irónico
Meaning
mocking or insulting in an indirect way
Example
He couldn’t resist making a snide comment about her dress.
No pudo evitar hacer un comentario irónico sobre su vestido.
C1 verb /ˌsuːpərˈsiːd/

supersede

reemplazar
Meaning
To replace or take the place of something because it is more modern or effective.
Example
This new law will supersede the old regulations.
Esta nueva ley reemplazará las viejas regulaciones.
C1 verb /ˈswɛltər/

swelter

sufrir por calor intenso
Meaning
to suffer from intense heat
Example
We began to swelter in the midday sun.
Empezamos a sudar bajo el sol del mediodía.
C1 adjective /ˈskrɔːni/

scrawny

flaco
Meaning
very thin and bony, often looking unhealthy
Example
The scrawny boy could barely lift the heavy bag.
El chico flaco apenas podía levantar la bolsa pesada.
C1 adjective sɪˈmæn.tɪk

semantic

relacionado con el significado en el lenguaje
Meaning
Related to meaning in language; concerning the interpretation of words and sentences.
Example
AI models use semantic analysis to understand context.
Los modelos de IA utilizan análisis semántico para entender el contexto.
C1 adjective səˈsaɪ.ə.təl

societal

social
Meaning
Relating to society or social relationships.
Example
Societal benefits of space tourism are under debate.
Los beneficios sociales del turismo espacial están en debate.
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 adjective /ˈsʌl.ki/

Sulky

malhumorado y taciturno; temperamental
Meaning
bad-tempered and sullen; moody
Example
The child became sulky when he couldn't get his favorite toy.
El niño se puso malhumorado cuando no pudo conseguir su juguete favorito.
C1 verb /ˈsɛvər/

sever

cortar, romper relaciones
Meaning
to cut off or separate, especially by cutting; to end a connection or relationship
Example
He had to sever ties with the company after the dispute.
Tuvo que cortar los lazos con la empresa después de la disputa.
C1 adverb /suːˈpɜːb.li/

Superbly

de manera excelente
Meaning
in an excellent or outstanding manner
Example
She performed superbly in the dance competition.
Ella actuó de manera excelente en la competencia de danza.
C1 noun ˌskeɪ.ləˈbɪl.ə.ti

scalability

escalabilidad
Meaning
The capacity to be changed in size or scale; the ability of a system to handle a growing amount of work.
Example
The new software offers high scalability for large enterprises.
El nuevo software ofrece alta escalabilidad para grandes empresas.
C1 noun ˈsʌs.tɪ.nəns

Sustenance

sustento o alimento
Meaning
Food or support necessary for sustaining life
Example
Water is essential for human sustenance.
El agua es esencial para la sustentación humana.
C1 noun /ˈsteɪtəs kwoʊ/

status quo

status quo
Meaning
The existing state of affairs, especially regarding social or political issues.
Example
The government decided to maintain the status quo until further review.
El gobierno decidió mantener el status quo hasta una revisión posterior.
C1 adjective /ˈspɛərɪŋ/

sparing

ahorrativo / moderado
Meaning
Using or giving only a little of something; economical.
Example
She is sparing in her use of words.
Ella es económica en el uso de las palabras.
C1 noun, verb /səˈpiːnə/

subpoena

citación judicial
Meaning
a legal document ordering someone to attend court; to summon someone with such a document
Example
The witness received a subpoena to appear in court next week.
El testigo recibió una citación judicial para comparecer en la corte la próxima semana.
C1 adjective /ˈsʌltri/

sultry

caluroso y húmedo, atractivo
Meaning
Uncomfortably hot and humid; also describes someone attractive in a passionate or sensual way.
Example
The sultry weather made it hard to focus on work.
El clima caluroso y húmedo dificultaba concentrarse en el trabajo.
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 /ˈsɛvərəns/

severance

indemnización por despido
Meaning
the act of ending something, especially a relationship or employment; compensation paid upon termination
Example
The company offered him severance pay after his job ended.
La empresa le ofreció indemnización por despido después de que terminó su empleo.
C1 noun /ˈskep.tɪ.sɪ.zəm/

skepticism

escepticismo, duda
Meaning
A skeptical attitude; doubt as to the truth of something.
Example
His skepticism about new technology often makes him resistant to change.
Su escepticismo sobre la nueva tecnología a menudo lo hace resistente al cambio.
C1 noun /ˈskælpəl/

scalpel

bisturí
Meaning
A small and extremely sharp bladed instrument used for surgery and dissection.
Example
The surgeon carefully used a scalpel to make the first incision.
El cirujano usó cuidadosamente un bisturí para hacer la primera incisión.
C1 noun /ˈstɪmjʊlənt/

stimulant

estimulante
Meaning
A substance that raises levels of physiological or nervous activity in the body.
Example
Coffee is a common stimulant that helps people stay awake.
El café es un estimulante común que ayuda a las personas a mantenerse despiertas
C1 verb /smɛlt/

smelt

fundir
Meaning
to extract metal from its ore by heating and melting
Example
The workers smelt iron from its ore in the factory.
Los trabajadores funden hierro de su mineral en la fábrica.
C1 noun /ˈʃeɪvɪŋ/

shaving

afeitado
Meaning
the act of removing hair with a razor; a thin strip or piece shaved from something
Example
He bought a new cream for shaving.
Compró una nueva crema para afeitarse.
C1 verb /ˈstaɪfl/

stifle

sofocar
Meaning
to prevent or restrain an action, idea, or emotion; to suffocate
Example
She tried to stifle a laugh during the serious meeting.
Ella intentó sofocar una risa durante la reunión seria.
C1 noun /ˈsɛntɪnəl/

sentinel

centinela
Meaning
A soldier or guard whose job is to stand and keep watch.
Example
A sentinel stood at the entrance of the camp.
Un centinela estaba de pie en la entrada del campamento.
C1 noun /ˌsɒl.jʊˈbɪləti/

solubility

solubilidad
Meaning
The ability of a substance to dissolve in a solvent.
Example
The solubility of salt in water is high.
La solubilidad de la sal en agua es alta.
C1 noun /ˌstætɪˈstɪʃən/

statistician

estadístico
Meaning
A person who specializes in collecting, analyzing, and interpreting numerical data.
Example
The statistician presented the survey results with great clarity.
El estadístico presentó los resultados de la encuesta con gran claridad.
C1 noun /ˈstoʊəˌweɪ/

stowaway

polizón
Meaning
A person who hides on a ship, plane, or other vehicle in order to travel secretly without paying.
Example
The crew discovered a stowaway hiding in the cargo hold.
La tripulación descubrió un polizón escondido en el compartimento de carga.
C1 adjective /ˈstætʃətɔːri/

statutory

estatutario
Meaning
Required, permitted, or enacted by law.
Example
The company must comply with all statutory regulations.
La empresa debe cumplir con todas las regulaciones estatutarias.
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/verb /spuːf/

spoof

imitación humorística
Meaning
A humorous imitation of something, or to trick or parody someone or something.
Example
The comedian spoofed the politician’s speech to entertain the audience.
El comediante parodió el discurso del político para entretener al público.