scuttle
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C1 verb /ˈskʌt.əl/

scuttle

felicidad
Meaning
To run hurriedly with short, quick steps; or to deliberately sink a ship.
Example
The children scuttled back to their seats when the teacher entered.
Ella no podía ocultar su felicidad cuando recibió el premio.
C1 adjective /ˈstɛr.aɪl/

sterile

estéril
Meaning
Free from bacteria or other living microorganisms; incapable of producing offspring.
Example
The surgeon worked in a sterile environment to avoid infection.
El cirujano trabajó en un ambiente estéril para evitar infecciones.
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 adjective /spɑːrs/

sparse

escaso
Meaning
thinly scattered or distributed; not dense or abundant
Example
Vegetation was sparse in the desert.
La vegetación era escasa en el desierto.
C1 noun /səˈprɛʃən/

suppression

supresión
Meaning
the act of forcibly stopping something or holding back feelings or actions
Example
The suppression of free speech led to protests.
La supresión de la libertad de expresión llevó a protestas.
C1 verb /səˈkʌm/

succumb

sucumbir
Meaning
To give in to pressure, temptation, or illness; to yield or fail to resist.
Example
He finally succumbed to his illness after a long struggle.
Finalmente sucumbió a su enfermedad después de una larga lucha.
C1 noun /ˈskɛptɪk/

skeptic

escéptico
Meaning
A person who doubts or questions accepted beliefs or claims.
Example
The scientist was a skeptic of theories without solid evidence.
El científico era escéptico de las teorías sin evidencia sólida.
C1 noun /swiːt.laɪm/

Sweetlime

limón dulce
Meaning
a citrus fruit that is sweeter and less acidic than regular lime
Example
The sweetlime juice was refreshing on a hot day.
El jugo de limón dulce era refrescante en un día caluroso.
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 adjective /ˈsɛptɪk/

septic

infectado
Meaning
Infected with harmful bacteria; relating to or causing infection.
Example
The doctor treated the patient's septic wound immediately.
El doctor trató la herida séptica del paciente de inmediato.
C1 verb /səbˈsɪst/

subsist

subsistir
Meaning
To maintain or support oneself, especially at a minimal level.
Example
Many villagers still subsist on fishing and farming.
Muchos aldeanos todavía subsisten de la pesca y la agricultura.
C1 adjective /səˈdʒɛstɪv/

suggestive

sugestivo
Meaning
tending to suggest ideas or images; sometimes implies something sexual or provocative
Example
The painting was highly suggestive and sparked much debate.
La pintura era muy sugestiva y provocó mucho debate.
C1 verb /struː/

strew

esparcir
Meaning
to scatter or spread things untidily over a surface or area
Example
Clothes were strewn across the floor.
La ropa estaba esparcida por el suelo.
C1 noun səˈsteɪnəbəl ænd kəˈlæbərətɪv əˈproʊtʃ

sustainable and collaborative approach

enfoque sostenible y colaborativo
Meaning
A method of working together that can be maintained over time without depleting resources or causing harm.
Example
A sustainable and collaborative approach is crucial for solving environmental problems.
Un enfoque sostenible y colaborativo es crucial para resolver los problemas ambientales.
C1 noun /ʃæk/

Shack

choza
Meaning
a small, crudely built dwelling; a poorly constructed building
Example
The fisherman lived in a small shack near the beach.
El pescador vivía en una pequeña choza cerca de la playa.
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 noun /sɪˈdʌk.ʃən/

Seduction

seducción; tentación
Meaning
the action of seducing someone; temptation to do something wrong
Example
He fell victim to the seduction of easy money.
Cayó víctima de la seducción del dinero fácil.
C1 adjective /sɪmˈplɪstɪk/

simplistic

excesivamente simplificado
Meaning
treating complex issues as if they were much simpler than they really are
Example
His explanation was too simplistic and ignored key details.
Su explicación fue demasiado simplificada e ignoró detalles clave.
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 /ˈsɒlstɪs/

solstice

solsticio
Meaning
the two times in the year when the sun is at its greatest distance from the equator (summer and winter solstice)
Example
People celebrate the summer solstice with festivals and rituals.
La gente celebra el solsticio de verano con festivales y rituales.
C1 noun /sɪˈnɒpsɪs/

synopsis

sinopsis
Meaning
a brief summary of the main points of a text, film, or research
Example
The publisher asked the author to submit a one-page synopsis of the novel.
El editor le pidió al autor que enviara una sinopsis de una página de la novela.
C1 verb /ˈʃækəl/

shackle

esposar
Meaning
to chain or restrain; to restrict someone’s actions or freedom
Example
Outdated regulations shackle small businesses and slow innovation.
Las regulaciones anticuadas encadenan a las pequeñas empresas y ralentizan la innovación.
C1 adjective /ˈstɛriəˌtaɪpt/

stereotyped

estereotipado
Meaning
Conforming to a fixed or oversimplified idea of what someone or something is like.
Example
His stereotyped jokes failed to impress the audience.
Sus chistes estereotipados no lograron impresionar a la audiencia.
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 adjective /ˈspaɪni/

spiny

espinoso
Meaning
covered with or full of spines; having sharp points
Example
The spiny cactus stood tall in the desert.
El cactus espinoso se alzaba alto en el desierto.
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 noun /ˌsɑːrdʒənt ˈmeɪdʒər/

sergeant-major

sargento-mayor
Meaning
A senior non-commissioned officer in the army responsible for discipline and administration within a unit.
Example
The sergeant-major inspected the troops before the parade.
El sargento-mayor inspeccionó a las tropas antes del desfile.
C1 noun /ˈsɪk.əl/

Sickle

hoz
Meaning
a tool with a curved metal blade and short handle used for cutting grain crops
Example
The farmer harvested wheat using a traditional sickle.
El agricultor cosechó trigo usando una hoz tradicional.
C1 verb /sʌlk/

sulk

estar enojado
Meaning
to be silent and bad-tempered because you are angry or disappointed
Example
She sulked in her room after the argument.
Ella se enojó en su habitación después de la discusión.
C1 noun /ˈsʌnˌdaʊn/

sundown

puesta de sol
Meaning
the time in the evening when the sun goes below the horizon
Example
We planned to reach the village before sundown.
Planeamos llegar al pueblo antes de la puesta de sol.
C1 noun /səˈbraɪəti/

sobriety

sobriedad
Meaning
the state of being sober; self-restraint and seriousness
Example
He has maintained his sobriety for five years.
Ha mantenido su sobriedad durante cinco años.
C1 adjective /sɪˈkluːdɪd/

secluded

aislado
Meaning
Placed apart from other people or things; private and quiet.
Example
They spent their vacation in a secluded beach house.
Pasaron sus vacaciones en una casa de playa aislada.
C1 noun /ˈspɛktər/

specter

espectro
Meaning
A ghost or spirit; something that causes fear or dread.
Example
The specter of war still haunts the region.
El espectro de la guerra todavía acecha la región.
C1 noun /sɔɪl ˈmæn.ɪdʒ.mənt/

soil management

gestión del suelo
Meaning
The application of operations, practices, and treatments to protect soil and enhance its performance.
Example
Proper soil management improves long-term agricultural productivity.
La gestión adecuada del suelo mejora la productividad agrícola a largo plazo.
C1 adjective /ˈsɛn.sər.i/

sensory

sensorial
Meaning
Related to the five human senses (sight, hearing, taste, touch, smell).
Example
Sensory feedback enhances the VR experience.
La retroalimentación sensorial mejora la experiencia de VR.
C1 adjective /ˈseɪ.vər.i/

savory

sabroso (salado o picante)
Meaning
Having a pleasant salty or spicy taste; morally acceptable.
Example
The restaurant serves a variety of savory dishes.
El restaurante sirve una variedad de platos sabrosos.
C1 adjective /ˌsɛlf əbˈzɔːrbd/

self-absorbed

egocéntrico
Meaning
Excessively preoccupied with oneself and one’s own thoughts, feelings, or interests.
Example
He was too self-absorbed to notice his friend's distress.
Estaba demasiado egocéntrico para notar la angustia de su amigo.
C1 adjective /səˈriːn/

serene

sereno y pacífico
Meaning
Calm, peaceful, and untroubled; tranquil.
Example
The lake had a serene and peaceful atmosphere.
El lago tenía una atmósfera serena y pacífica.
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 verb /ˈsɪn.θə.saɪz/

synthesize

sintetizar
Meaning
To combine a number of things into a coherent whole.
Example
Scientists synthesize new compounds for medical research.
Los científicos sintetizan nuevos compuestos para la investigación médica.
C1 verb /sərˈmaɪz/

surmise

suponer
Meaning
to suppose something is true without having evidence
Example
She surmised that he was not coming to the meeting.
Ella supuso que él no iba a venir a la reunión.
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 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 /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 verb /ˈʃrɪvəl/

shrivel

arrugar
Meaning
To become dry, wrinkled, and smaller due to lack of moisture.
Example
The flowers shriveled under the hot sun.
Las flores se arrugaron bajo el sol caliente.
C1 noun, verb /slɜːr/

slur

insulto / palabra despectiva
Meaning
An insulting remark or suggestion; or to speak indistinctly.
Example
He made a slur against her character.
Hizo un comentario despectivo sobre su carácter.
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 /səbˈmɜːrdʒəns/

submergence

inmersión
Meaning
the act or process of being submerged or going underwater
Example
The submergence of coastal areas is a major concern due to rising sea levels.
La inmersión de las áreas costeras es una preocupación importante debido al aumento del nivel del mar.
C1 noun /ʃeɪl/

shale

pizarra
Meaning
a fine-grained sedimentary rock that can be split into thin layers
Example
The region is rich in shale and natural gas deposits.
La región es rica en pizarra y depósitos de gas natural.
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 /ˈspaɪn.ləs/

Spineless

sin coraje; débil de voluntad; cobarde
Meaning
lacking courage or determination; weak-willed
Example
He was too spineless to stand up for his beliefs.
Él fue demasiado sin columna vertebral para defender sus creencias.
C1 adjective /ˈsɛnʃənt/

sentient

sensible
Meaning
Able to perceive or feel things.
Example
Humans are sentient beings capable of reasoning.
Los humanos son seres sentientes capaces de razonar.
C1 noun /səˈlɛmnɪti/

solemnity

solemnidad
Meaning
the state or quality of being serious and dignified
Example
The ceremony was conducted with great solemnity.
La ceremonia se realizó con gran solemnidad.
C1 adjective /ˈsaʊnd.pruːf/

Sound-proof

a prueba de sonido; que evita que el sonido entre o salga
Meaning
impervious to sound; preventing sound from entering or leaving
Example
The recording studio has sound-proof walls.
El estudio de grabación tiene paredes a prueba de sonido.
C1 noun ˈsæŋktɪti

sanctity

santidad
Meaning
The state or quality of being holy, sacred, or saintly; ultimate importance.
Example
The sanctity of life should never be compromised.
La santidad de la vida nunca debe ser comprometida.
C1 adjective /ˈskrʌmpʃəs/

scrumptious

exquisito
Meaning
extremely tasty or delicious
Example
She baked a scrumptious chocolate cake for the party.
Ella horneó un exquisito pastel de chocolate para la fiesta.
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 noun /siˈɛrə klʌb/

Sierra Club

Sierra Club
Meaning
An American environmental organization founded in 1892 by John Muir, focused on promoting conservation of the natural environment by influencing public policy decisions.
Example
John Muir founded the Sierra Club in 1892 to protect wild areas.
John Muir fundó el Sierra Club en 1892 para proteger áreas salvajes.
C1 verb /sleɪ/

slay

matar
Meaning
to kill violently; informally, to impress greatly
Example
The hero vowed to slay the dragon.
El héroe juró matar al dragón.
C1 noun /ˌsʌpəˈzɪʃən/

supposition

suposición
Meaning
An assumption or belief that something is true without certain proof.
Example
His plan was based on the supposition that the market would recover quickly.
Su plan estaba basado en la suposición de que el mercado se recuperaría rápidamente.
C1 noun /səˈbætɪkəl/

sabbatical

período de descanso para estudio o viaje
Meaning
A period of paid leave granted to a teacher or worker for study or travel, traditionally every seventh year.
Example
She took a sabbatical to research her new book.
Ella tomó un sabático para investigar su nuevo libro.
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, verb /spreɪn/

sprain

esguince
Meaning
an injury to a joint in which the ligaments are stretched or torn
Example
She sprained her ankle while running in the park.
Ella se torció el tobillo mientras corría en el parque.
C1 noun /səˈlaɪ.və/

Saliva

saliva
Meaning
the watery liquid secreted into the mouth by glands
Example
The dentist asked her to rinse the saliva from her mouth.
El dentista le pidió que enjuagara la saliva de su boca.
C1 adjective /ˈsɔːrdɪd/

sordid

sórdido
Meaning
involving immoral or dishonorable actions; dirty or unpleasant
Example
The newspaper exposed the politician's sordid past.
El periódico expuso el pasado sórdido del político.
C1 adjective /ˈsʌmp.tʃu.əs/

sumptuous

suntuoso
Meaning
Splendid and expensive-looking; luxurious.
Example
The guests were treated to a sumptuous banquet.
Los invitados fueron tratados con un banquete suntuoso.
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 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 verb /ˈstɪɡmətaɪz/

stigmatize

estigmatizar
Meaning
to describe or regard someone as worthy of disgrace or disapproval
Example
People with certain illnesses are often unfairly stigmatized.
Las personas con ciertas enfermedades a menudo son estigmatizadas de manera injusta.
C1 verb /sərˈpæs/

surpass

superar
Meaning
to exceed or go beyond
Example
Her performance surpassed all expectations.
Su rendimiento superó todas las expectativas.
C1 adjective /ˈsʌlən/

sullen

gruñón
Meaning
bad-tempered and gloomy; silently resentful
Example
She gave him a sullen look and walked away.
Ella le dio una mirada gruñona y se fue.
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 /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 /suːˈpɜːrlətɪv/

superlative

superlativo
Meaning
Of the highest quality or degree; expressing the extreme form of an adjective or adverb.
Example
Her performance was superlative, earning her a standing ovation.
Su desempeño fue superlativo, ganándose una ovación de pie.
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 ˈsɛlfləsnɪs

selflessness

desinterés
Meaning
The quality of being concerned more with the needs of others than with one's own.
Example
Selflessness is a key value for community building.
El desinterés es un valor clave para la construcción de la comunidad.
C1 noun səˌfɪs.tɪˈkeɪ.ʃən

sophistication

nivel alto de complejidad o refinamiento
Meaning
High level of complexity or refinement.
Example
The sophistication of modern AI technology is remarkable.
La sofisticación de la tecnología moderna de IA es notable.
C1 adjective /ˌsuː.pəˈsɒn.ɪk/

Supersonic

más rápido que la velocidad del sonido; relacionado con velocidades mayores que la del sonido
Meaning
faster than the speed of sound; relating to speeds greater than the speed of sound
Example
The supersonic jet broke the sound barrier.
El avión supersónico rompió la barrera del sonido.
C1 adjective /ˈsɒmbər/

somber

sombrío
Meaning
Dark or dull in color or tone; gloomy or serious.
Example
The funeral had a somber atmosphere.
El funeral tenía un ambiente sombrío.
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 ˌsʌb.sɪ.dɪˈzeɪ.ʃən

subsidization

subsidio
Meaning
Financial assistance provided by government to make certain goods or services more affordable.
Example
Subsidization of agriculture helps farmers maintain crop production.
La subsidización de la agricultura ayuda a los agricultores a mantener la producción de cultivos.
C1 adverb spɒnˈteɪnɪəsli

spontaneously

espontáneamente
Meaning
In a spontaneous way; naturally and without planning or external cause.
Example
Children learn spontaneously through peer interactions.
Los niños aprenden espontáneamente a través de interacciones entre compañeros.
C1 noun/verb /smʌdʒ/

smudge

mancha, marca sucia
Meaning
a dirty mark or smear; to make something dirty or unclear by rubbing or touching
Example
She accidentally smudged her lipstick on the napkin.
Ella accidentalmente manchó su lápiz labial en la servilleta.
C1 noun /səbˈvɜːrʒən/

subversion

subversión
Meaning
the act of trying to destroy or undermine an established system or authority
Example
The government accused the rebels of planning subversion.
El gobierno acusó a los rebeldes de planear una subversión.
C1 adjective /ˈsiː.naɪl/

senile

debilidad relacionada con la vejez
Meaning
Showing the weaknesses of old age, especially mental decline.
Example
The old man became senile and forgot familiar faces.
El hombre viejo se volvió senil y olvidó rostros familiares.
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 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 noun /səˈlɪləkwi/

soliloquy

monólogo
Meaning
a speech in which a character talks to themselves, often used in drama to reveal inner thoughts
Example
Hamlet's soliloquy is one of the most famous passages in Shakespearean drama.
El monólogo de Hamlet es uno de los pasajes más famosos del drama shakesperiano.
C1 verb /ˈsmʌðər/

smother

sofocar / asfixiar
Meaning
to kill someone by covering their nose and mouth to prevent breathing; to cover something completely; to overwhelm with excessive attention or affection
Example
She smothered the fire with a blanket.
Ella sofocó el fuego con una manta.
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 /səbˈdʒɛkʃən/

subjection

subyugación
Meaning
the act of bringing someone or something under control or domination
Example
The people suffered under the subjection of a cruel ruler.
El pueblo sufrió bajo la subyugación de un gobernante cruel.
C1 noun /ˈswɪndlɚ/

swindler

estafador
Meaning
a person who cheats or deceives others for money or gain
Example
The police finally caught the notorious swindler.
La policía finalmente atrapó al notorio estafador.
C1 adjective /suːˈpɜːr.flu.əs/

superfluous

superfluo
Meaning
Unnecessary, especially through being more than enough.
Example
His speech contained too many superfluous details.
Su discurso contenía demasiados detalles superfluos.
C1 noun /ˌspɒn.təˈneɪ.ɪ.ti/

spontaneity

espontaneidad
Meaning
The quality of being spontaneous; natural and unplanned behavior.
Example
His spontaneity makes him a great conversationalist.
Su espontaneidad lo convierte en un gran conversador.
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 /ˈsɔːrsəri/

sorcery

hechicería
Meaning
the use of magical powers, especially through spells and enchantments
Example
The villagers believed the illness was caused by sorcery.
Los aldeanos creían que la enfermedad fue causada por hechicería.
C1 adjective /səˈnɔːrəs/

sonorous

sonido profundo
Meaning
Deep, full, and rich in sound.
Example
The actor's sonorous voice filled the entire theater.
La voz sonorosa del actor llenó todo el teatro.
C1 verb /ʃɜːrk/

shirk

evitar
Meaning
to avoid or neglect a duty or responsibility
Example
He always tries to shirk his responsibilities at work.
Él siempre trata de evitar sus responsabilidades en el trabajo.
C1 adjective /sɪˈnɒnɪməs/

synonymous

sinónimo
Meaning
having the same or nearly the same meaning; closely associated with something
Example
For many people, her name is synonymous with generosity.
Para muchas personas, su nombre es sinónimo de generosidad.
C1 verb /sɪft/

sift

tamizar / examinar cuidadosamente
Meaning
to separate or sort through carefully, often using a sieve or by examining closely
Example
She sifted the flour before adding it to the cake mixture.
Ella tamizó la harina antes de agregarla a la mezcla del pastel.
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 ˈsɒvrɪn

sovereign

soberano, supremo
Meaning
Possessing supreme or ultimate power; independent.
Example
The sovereign government has control over its currency.
El gobierno soberano tiene control sobre su moneda.
C1 noun /ˈsɪləbəl/

syllable

sílaba
Meaning
A unit of pronunciation having one vowel sound, with or without surrounding consonants, forming the whole or part of a word.
Example
The word 'computer' has three syllables.
La palabra 'computadora' tiene tres sílabas.
C1 noun /stɛntʃ/

stench

hedor
Meaning
A very strong and unpleasant smell.
Example
The stench of garbage filled the alley.
El hedor de la basura llenó el callejón.
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 verb /səˈplænt/

supplant

suplantar
Meaning
To take the place of something or someone, often by force or strategy.
Example
Digital platforms have supplanted traditional newspapers.
Las plataformas digitales han suplantado a los periódicos tradicionales.
C1 adjective /ˈsɪn.tɪ.leɪ.tɪŋ/

scintillating

deslumbrante
Meaning
brilliantly clever, exciting, or sparkling
Example
Her scintillating conversation kept everyone entertained.
Su conversación deslumbrante mantuvo a todos entretenidos.
C1 /splɪnt/

splint

férula
Meaning
A rigid device used to support and immobilize a broken or injured body part.
Example
The doctor applied a splint to stabilize the patient's broken arm.
El doctor aplicó una férula para estabilizar el brazo roto del paciente.
C1 noun /ʃoʊl/

shoal

cardumen
Meaning
a large group of fish swimming together; a shallow place in water
Example
We saw a shoal of fish near the coast.
Vimos un cardumen de peces cerca de la costa.
C1 verb /sɪˈsiːd/

secede

secesionar
Meaning
To formally withdraw from a political or organizational union.
Example
Several states threatened to secede from the union.
Varios estados amenazaron con separarse de la unión.
C1 verb, noun /spraʊt/

sprout

brotar
Meaning
to begin to grow; to produce new leaves or shoots
Example
The seeds began to sprout after a few days of rain.
Las semillas comenzaron a brotar después de unos días de lluvia.
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 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 verb /skʌf/

scuff

rasguñar
Meaning
to mark or scratch the surface of something by rubbing
Example
He scuffed his shoes on the pavement.
Él rasguñó sus zapatos en la acera.
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 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 noun /ˈskrɪmɪdʒ/

scrimmage

partido de práctica
Meaning
A practice game or informal match, often in sports, especially football.
Example
The team had a scrimmage before the official season started.
El equipo tuvo un partido de práctica antes de que comenzara la temporada oficial.
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 noun səˈlɪnɪti ɪnˈtruːʒən

salinity intrusion

intrusión de salinidad
Meaning
The movement of salt water into freshwater areas, typically affecting coastal regions.
Example
Salinity intrusion affects coastal regions.
La intrusión de salinidad afecta las regiones costeras.
C1 verb /ˈstriːm.laɪn/

streamline

simplificar o aumentar la eficiencia
Meaning
To make a process simpler and more efficient.
Example
The company aims to streamline production to reduce costs.
La compañía tiene como objetivo optimizar la producción para reducir los costos.
C1 verb /ˈʃɪmər/

shimmer

brillar tenuemente
Meaning
To shine with a soft, wavering light.
Example
The lake shimmered under the moonlight.
El lago brillaba bajo la luz de la luna.