strident
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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 verb /spɜːr/

spur

estimular / incentivar
Meaning
To encourage or motivate someone to take action.
Example
The teacher's praise spurred him to study harder.
El elogio del maestro lo estimuló a estudiar más duro.
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 /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 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 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 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 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 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 /ˈʃrɪŋkɪdʒ/

shrinkage

encogimiento
Meaning
The process of becoming smaller in size, amount, or value.
Example
The company reported a shrinkage in profits this quarter.
La empresa reportó un encogimiento en las ganancias de este trimestre.
C1 noun/verb /ˈskɜːrmɪʃ/

skirmish

escaramuza
Meaning
a small or brief fight between groups of soldiers; to engage in such a fight
Example
The soldiers got into a skirmish near the border.
Los soldados se metieron en una escaramuza cerca de la frontera.
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 verb /snʌb/

snub

despreciar
Meaning
to insult or ignore someone by treating them rudely
Example
He felt hurt when his invitation was snubbed.
Él se sintió herido cuando su invitación fue despreciada.
C1 noun ˈsɒv.rɪn.ti

sovereignty

soberanía
Meaning
The authority of a state to govern itself or another state; supreme power or authority.
Example
Sovereignty is essential for a nation's identity.
La soberanía es esencial para la identidad de una nación.
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 /sɪlk klɔːθ/

Silk cloth

tela de seda
Meaning
fabric made from natural fibers produced by silkworms
Example
The bride wore a beautiful dress made of silk cloth.
La novia llevaba un hermoso vestido hecho de tela de seda.
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 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 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 verb /ˈskwɒbəl/

squabble

discutir ruidosamente sobre algo sin importancia
Meaning
To argue noisily over something small or unimportant.
Example
The children squabbled over the last piece of cake.
Los niños discutían por el último trozo de pastel.
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.
C1 adjective /səbˈmɪs.ɪv/

Submissive

sumiso; obediente; sumiso
Meaning
ready to obey others; yielding to authority; humble and compliant
Example
She became submissive after years of harsh treatment.
Se volvió sumisa después de años de trato severo.
C1 verb /skrɔːl/

scrawl

escribir rápidamente y de manera desordenada
Meaning
to write or draw something quickly and carelessly, making it hard to read
Example
He scrawled his signature at the bottom of the page.
Él scrawle su firma en la parte inferior de la página.
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 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 /səˈrɛn.ɪ.ti/

serenity

serenidad
Meaning
The state of being calm, peaceful, and untroubled.
Example
Meditation helps in achieving inner serenity.
La meditación ayuda a alcanzar la serenidad interior.
C1 adjective /səbˈdʒɛktɪv/

subjective

subjetivo
Meaning
based on personal feelings, tastes, or opinions rather than facts
Example
Beauty is often considered a subjective concept.
La belleza a menudo se considera un concepto subjetivo.
C1 adjective ˌsəʊsɪəʊpəˈlɪtɪkəl

sociopolitical

sociopolítico
Meaning
Combining social and political factors.
Example
Sociopolitical factors often influence public policy decisions.
Los factores sociopolíticos a menudo influyen en las decisiones de políticas públicas.
C1 adjective /smʌɡ/

smug

presumido
Meaning
having or showing an excessive pride in oneself or one's achievements
Example
He wore a smug smile after winning the debate.
Llevaba una sonrisa presuntuosa después de ganar el debate.
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 noun/verb /snɛər/

snare

trampa
Meaning
a trap for catching animals; to catch or trap
Example
The hunter set a snare to catch rabbits.
El cazador puso una trampa para atrapar conejos.
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 /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 adjective/verb /ˈsiːzənd/

seasoned

experimentado / sazonado
Meaning
Experienced in a particular activity; also, flavored with spices.
Example
She is a seasoned teacher with over 20 years of experience.
Ella es una maestra experimentada con más de 20 años de experiencia.
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 /ˈsɛdətɪv/

sedative

sedante
Meaning
A substance that calms the nerves or induces sleep.
Example
The doctor prescribed a sedative to help the patient sleep.
El doctor recetó un sedante para ayudar al paciente a dormir.
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 /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 noun səˈsteɪnəbəl ˈpræktɪsɪz

sustainable practices

prácticas sostenibles
Meaning
Methods and activities that can be maintained over time without depleting natural resources or harming the environment.
Example
Sustainable practices are vital for environmental preservation.
Las prácticas sostenibles son vitales para la preservación del medio ambiente.
C1 noun /skɪt/

skit

sketch
Meaning
a short, humorous performance or piece of writing
Example
The students performed a funny skit at the event.
Los estudiantes realizaron un divertido sketch en el evento.
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 /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 /skɔːrtʃ/

scorch

quemar
Meaning
to burn the surface of something slightly
Example
The fire scorched the walls of the building.
El fuego quemó las paredes del edificio.
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 /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.
C1 noun /ˈspiːʃiː/

specie

moneda
Meaning
money in the form of coins rather than notes or credit
Example
The transaction was made in specie.
La transacción se hizo en monedas.
C1 adjective /sɛkˈtɛəriən/

sectarian

sectario
Meaning
relating to or characterized by the differences between sects, often leading to conflict
Example
The region has been troubled by sectarian violence for decades.
La región ha estado atormentada por la violencia sectaria durante décadas.
C1 adjective /ˈsɔːsi/

saucy

atrevido
Meaning
Boldly rude, cheeky, or playfully disrespectful.
Example
The child gave a saucy reply to his teacher.
El niño dio una respuesta atrevida a su maestro.
C1 adjective /sɑːrˈdɒnɪk/

sardonic

felicidad
Meaning
Grimly mocking or cynical.
Example
She gave him a sardonic smile after hearing his excuse.
Ella no pudo ocultar su felicidad cuando recibió el premio.
C1 verb /slɪŋk/

slink

deslizarse en silencio
Meaning
to move quietly and secretly, often to avoid being noticed
Example
The cat slunk into the room without making a sound.
El gato entró en la habitación sin hacer ruido.
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 /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 adjective /sɔɪld/

soiled

sucio
Meaning
dirty or stained; not clean
Example
His clothes were soiled after playing in the mud.
Su ropa estaba sucia después de jugar en el barro.
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 adjective /ˈsleɪ.vɪʃ/

slavish

esclavo
Meaning
showing no originality; completely imitative or overly submissive
Example
His slavish devotion to tradition prevented any innovation.
Su devoción esclava a la tradición impidió cualquier innovación.
C1 adjective /ˈstɪndʒi/

stingy

tacaño
Meaning
unwilling to spend or give; miserly
Example
He is too stingy to buy a gift for his friend.
Es demasiado tacaño para comprar un regalo para su amigo.
C1 verb /snɪp/

snip

cortar
Meaning
to cut something quickly with scissors or a sharp tool
Example
She snipped the loose thread from her dress.
Ella cortó el hilo suelto de su vestido.
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 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 /ˈsɛnʃuəs/

sensuous

sensual
Meaning
Relating to or affecting the senses rather than the intellect; pleasing to the senses.
Example
The garden was filled with sensuous colors and fragrances.
El jardín estaba lleno de colores y fragancias sensuales.
C1 adjective /ˈsɒljʊbəl/

soluble

soluble
Meaning
able to be dissolved, especially in water
Example
Sugar is soluble in water.
El azúcar es soluble en agua.
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 adjective /ˈstæɡ.nənt/

Stagnant

estancado; inmóvil; sin desarrollo
Meaning
not moving or flowing; showing no activity or development
Example
The stagnant water in the pond was covered with algae.
El agua estancada en el estanque estaba cubierta de algas.
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 adjective /ˈʃɑːdi/

shoddy

de mala calidad
Meaning
badly made or done; of poor quality
Example
The contractor did a shoddy job on the repairs.
El contratista hizo un trabajo de mala calidad en las reparaciones.
C1 noun /saɪð/

scythe

hoz
Meaning
A tool with a long curved blade used for cutting grass or grain.
Example
The farmer sharpened his scythe before harvesting the wheat.
El agricultor afiló su hoz antes de cosechar el trigo.
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 adjective /ˈsiːzənəbəl/

Seasonable

estacional
Meaning
occurring at the right time; appropriate for the season; timely
Example
The seasonable rain helped the farmers with their crops.
La lluvia estacional ayudó a los agricultores con sus cultivos.
C1 adjective /ˈsæŋɡwɪn/

sanguine

optimista
Meaning
Optimistic or positive, especially in a difficult situation.
Example
Despite the challenges, she remained sanguine about the future.
A pesar de los desafíos, ella se mantuvo optimista acerca del futuro.
C1 adjective /ˈskænti/

Scanty

pequeño en tamaño o cantidad; insuficiente; apenas adecuado
Meaning
small in size or amount; insufficient; barely adequate
Example
The refugee camp had scanty food supplies.
El campo de refugiados tenía suministros de comida escasos.
C1 adjective /ˈsɪnləs/

Sinless

sin pecado; inocente; puro
Meaning
free from sin; pure and innocent; without moral fault
Example
The innocent child appeared sinless in her pure white dress.
La niña inocente apareció sin pecado con su vestido blanco puro.
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 verb/noun /snɑːrl/

snarl

gruñido, atasco
Meaning
to growl aggressively with bared teeth; a tangle or mess
Example
The dog snarled at the stranger near the gate.
El perro gruñó al extraño cerca de la puerta.
C1 adjective /ˈsɜːrpənˌtiːn/

serpentine

serpenteante
Meaning
Having the shape, movement, or qualities of a serpent; winding or twisting.
Example
The road took a serpentine path through the mountains.
El camino tomaba una ruta serpenteante a través de las montañas.
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 noun /sloʊθ/

Sloth

pereza; reluctancia a trabajar o hacer un esfuerzo
Meaning
laziness; reluctance to work or make an effort
Example
His sloth prevented him from achieving his goals.
Su pereza le impidió alcanzar sus metas.
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 /slɪŋ/

sling

colgar, lanzar
Meaning
to throw or hang something roughly or carelessly
Example
He slung his bag over his shoulder before leaving.
Él colgó su bolso sobre su hombro antes de salir.
C1 verb /ˈstæɡ.neɪt/

stagnate

estancarse
Meaning
to stop developing, progressing, or moving
Example
Without innovation, the business will stagnate.
sin innovación, el negocio se estancará.
C1 verb /səˈfɪstɪkeɪt/

sophisticate

sofisticar
Meaning
to make something more complex or refined; to educate or develop in taste and manners
Example
Traveling abroad helped sophisticate his worldview.
Viajar al extranjero ayudó a sofisticar su visión del mundo.
C1 noun ˌsteɪbəlaɪˈzeɪʃən

stabilization

estabilización
Meaning
The process of making or becoming stable.
Example
The stabilization of the structure was essential after the earthquake.
La estabilización de la estructura fue esencial después del terremoto.
C1 noun/verb /ˈslʌmbər/

slumber

sueño
Meaning
A state of sleep; to sleep lightly or rest.
Example
The child slumbered peacefully through the night.
El niño durmió pacíficamente durante la noche.
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/noun /stuːp/

stoop

felicidad
Meaning
To bend one's body forward and downward; also a small porch or staircase at the entrance of a house
Example
He had to stoop to pick up the coin.
No pudo esconder su felicidad cuando recibió el premio.
C1 noun /stɪˈlɛtoʊ/

stiletto

zapato de tacón delgado / daga
Meaning
A small, thin, high-heeled shoe or a dagger with a slender blade.
Example
She wore elegant stiletto heels to the party.
Ella llevaba unos elegantes tacones stilettos a la fiesta.
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 verb /ˈsmoʊldər/

smolder

ardecer lentamente
Meaning
to burn slowly with smoke but no flame; to show suppressed anger or emotion
Example
The fire smoldered for hours before it went out.
El fuego ardió lentamente durante horas antes de apagarse.
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 /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 noun /sərˈveɪər/

surveyor

topógrafo
Meaning
A person who measures and maps land, buildings, or other features.
Example
The surveyor measured the land for construction.
El topógrafo midió la tierra para la construcción.
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 verb /ˈsɔːntər/

saunter

caminar despacio
Meaning
to walk in a slow, relaxed manner without hurry or effort
Example
We sauntered along the riverside, stopping now and then to watch the boats.
Caminamos lentamente por la orilla del río, deteniéndonos de vez en cuando para observar los botes.
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 /ˈʃɪp.ʃeɪp/

Shipshape

ordenado; bien organizado; en buen estado
Meaning
neat and tidy; in good order; well-organized
Example
Everything was shipshape before the inspection.
Todo estaba en perfecto estado antes de la inspección.
C1 adjective /ˈsliːzi/

sleazy

de mala calidad, inmoral o barato
Meaning
morally low, dirty, or cheap in quality
Example
He avoided the sleazy nightclub downtown.
Él evitó el club nocturno sórdido en el centro.
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 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 noun /ˈsiːskeɪp/

seascape

paisaje marino
Meaning
A view or painting of the sea.
Example
The artist painted a beautiful seascape at sunset.
El artista pintó un hermoso paisaje marino al atardecer.
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 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 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 adjective /ˈstoʊɪk/

stoic

estoico, imperturbable
Meaning
Showing little or no emotion, even in difficult situations.
Example
She remained stoic during the crisis, never showing fear or panic.
Ella permaneció estoica durante la crisis, sin mostrar miedo ni pánico.
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 /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 verb /ˈskwɒndər/

squander

malgastar
Meaning
to waste money, time, or opportunities in a careless way
Example
He squandered his inheritance on gambling.
Él malgastó su herencia en juegos de azar.
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 /ˌsəʊ.ʃi.əʊˈek.ə.nɒm.ɪk ˈprɒɡ.res/

socioeconomic progress

progreso socioeconómico
Meaning
Advancement in both social and economic conditions of a society or community.
Example
Socioeconomic progress uplifts marginalized communities.
El progreso socioeconómico eleva a las comunidades marginadas.
C1 verb /ˈʃʌdər/

shudder

temblar
Meaning
to tremble or shake suddenly, often due to fear, cold, or strong emotion
Example
She shuddered at the thought of walking alone in the dark forest.
Ella se estremeció al pensar en caminar sola en el oscuro bosque.
C1 verb/noun /ˈsɒldər/

solder

soldar
Meaning
To join metal parts together by melting and putting a filler metal into the joint
Example
He soldered the broken wires back together.
Él soldó los cables rotos de nuevo.
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 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 verb /sɪˈkriːt/

secrete

secreción
Meaning
to produce and release a substance from a cell, gland, or organ
Example
The pancreas secretes insulin to regulate blood sugar levels.
El páncreas secreta insulina para regular los niveles de azúcar en la sangre.
C1 adjective /ˈstɪltɪd/

stilted

artificial, forzado
Meaning
Speech or writing that is stiff, unnatural, or overly formal.
Example
His speech sounded stilted and rehearsed.
Su discurso sonaba forzado y ensayado.
C1 noun /ˈspɛkjʊˌleɪtər/

speculator

especulador
Meaning
A person who forms theories without evidence, or invests in assets hoping for profit.
Example
The real estate speculator bought land hoping its value would rise.
El especulador de bienes raíces compró tierras con la esperanza de que su valor aumentaría.
C1 adjective /ˈswɛltərɪŋ/

sweltering

abrasador
Meaning
uncomfortably hot
Example
The sweltering heat made it hard to work.
El calor abrasador hizo que fuera difícil trabajar.
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 adjective /ˈstrɪndʒənt/

stringent

estricto
Meaning
strict, precise, and exacting
Example
The government imposed stringent measures during the crisis.
El gobierno impuso medidas estrictas durante la crisis.
C1 noun /suˈpriː.mə.si/

Supremacy

supremacía; autoridad o poder más alto
Meaning
the state of being supreme; highest authority or power
Example
The country established naval supremacy in the region.
El país estableció supremacía naval en la región.
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 /ˈsaɪd.laɪn dɪˈskʌʃənz/

sideline discussions

discusiones secundarias
Meaning
Informal or secondary conversations that occur outside the main agenda of a formal meeting.
Example
Sideline discussions often lead to agreements.
Las discusiones secundarias a menudo conducen a acuerdos.
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.