sophisticate
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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.
B2 noun /ˈsʌb.sɪ.di/

subsidy

subsidio
Meaning
Financial assistance provided by government to reduce costs of goods or services.
Example
The government provides a fuel subsidy to control prices.
El gobierno proporciona un subsidio de combustible para controlar los precios.
C2 adjective /ˈspaɪnəs/

spinous

espinoso
Meaning
Having spines or thorn-like projections
Example
The spinous cactus was difficult to handle without gloves.
El cactus espinoso era difícil de manejar sin guantes.
A2 adjective /ʃɑːrp/

Sharp

agudo; intenso; repentino y fuerte; rápido para entender
Meaning
having a cutting edge or point; sudden and intense; quick to understand
Example
The knife has a very sharp blade.
El cuchillo tiene una hoja muy afilada.
B2 verb /suː/

sue

demandar
Meaning
to bring a lawsuit against someone in a court of law
Example
She decided to sue the company for damages.
Ella decidió demandar a la empresa por daños.
C2 adjective, noun /səbˈmɜːrsəbl/

submersible

sumergible
Meaning
capable of being submerged; a small underwater craft
Example
The scientists explored the deep ocean using a submersible.
Los científicos exploraron el océano profundo utilizando un sumergible.
A2 noun /ˈsoʊ.fə/

Sofa

sofá
Meaning
a long upholstered seat for more than one person
Example
The family gathered on the sofa to watch TV.
La familia se reunió en el sofá para ver la televisión.
B1 noun /ˈswɛtʃɜːrt/

sweatshirt

sudadera
Meaning
A casual, long-sleeved pullover garment, typically made of cotton or fleece, worn for warmth or comfort.
Example
He wore a grey sweatshirt while jogging in the park.
Llevaba una sudadera gris mientras corría en el parque.
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.
B1 adjective /ʃeɪpt/

shaped

formado
Meaning
having a particular form or appearance
Example
The sculpture was shaped like a human figure.
La escultura estaba formada como una figura humana.
C1 noun /ˌsəʊʃəˈbɪləti/

sociability

sociabilidad
Meaning
The quality or state of being sociable; friendliness.
Example
Her sociability made her popular in the office.
Su sociabilidad la hizo popular en la oficina.
C1 adjective /ˌsækrəˈlɪdʒəs/

sacrilegious

sacrílego
Meaning
Showing disrespect or irreverence toward something sacred.
Example
The painting was criticized as being sacrilegious.
La pintura fue criticada por ser sacrílega.
B1 noun /steɪk/

steak

bistec
Meaning
a thick slice of meat, typically beef, cooked by grilling or frying
Example
He ordered a grilled steak with vegetables.
Él pidió un bistec a la parrilla con verduras.
C2 noun /səˈɡæs.ə.t̬i/

sagacity

sabiduría profunda
Meaning
The quality of being sagacious; having or showing keen mental discernment and good judgment.
Example
His sagacity made him a great leader.
Su sagacidad lo convirtió en un gran líder.
C2 noun /sælv/

salve

ungüento
Meaning
An ointment used to promote healing of the skin or as protection.
Example
She applied a salve to the burn on her hand.
Ella aplicó un ungüento en la quemadura de su mano.
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.
B1 noun, verb /spoʊk/

spoke

radios / habló
Meaning
As a noun, a bar connecting the center of a wheel to its rim; as the past tense of 'speak'.
Example
The bicycle's spoke was bent after the accident.
El radio de la bicicleta estaba doblado después del accidente.
B1 noun /ˈsɛtɪŋ/

setting

escenario
Meaning
the environment or place where something happens
Example
The setting of the movie was a beautiful beach.
El escenario de la película era una playa hermosa.
B2 adjective /ˈskɛptɪkəl/

skeptical

escéptico
Meaning
not easily convinced; having doubts or reservations
Example
She was skeptical about the new plan.
Ella era escéptica sobre el nuevo plan.
C1 adjective /ˈskɔːrnfəl/

Scornful

despectivo
Meaning
showing contempt or disdain; expressing scorn
Example
She gave him a scornful look when he made the rude comment.
Ella le dio una mirada desdeñosa cuando hizo el comentario grosero.
B2 noun /skoʊp/

scope

alcance
Meaning
the range of one's perception, understanding, or activity
Example
The project is beyond the scope of our resources.
El proyecto está más allá del alcance de nuestros recursos.
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.
A1 pronoun /ˈsʌmwʌn/

someone

alguien
Meaning
a person, but not specifically known or named
Example
Someone left their umbrella in the hallway.
Alguien dejó su paraguas en el pasillo.
B2 noun /ˈseɪf.ɡɑːrd/

Safeguard

salvaguarda
Meaning
measure or action designed to protect someone or something
Example
New safeguards were implemented to prevent data breaches.
Se implementaron nuevas salvaguardas para prevenir violaciones de datos.
C2 noun /ˌsɪɡnɪfɪˈkeɪʃən/

signification

significado
Meaning
the meaning or sense conveyed by a word, action, or symbol
Example
The signification of the gesture was misunderstood.
El significado del gesto fue malinterpretado.
B2 noun /skɛtʃ/

sketch

boceto
Meaning
a simple, rough drawing or outline
Example
He made a quick sketch of the landscape.
Él hizo un boceto rápido del paisaje.
A1 verb /send/

send

enviar
Meaning
to cause something to go or be taken to a particular destination; to transmit
Example
I will send you an email with the details.
Voy a enviarte un correo electrónico con los detalles.
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.
C2 noun /ˈstrɪk.tʃər/

stricture

restricción, crítica
Meaning
a restriction or limitation; a critical remark
Example
The new law placed a severe stricture on free speech.
La nueva ley impuso una restricción severa a la libertad de expresión.
C2 noun /ˈsɛpəlkər/

sepulcher

sepulcro
Meaning
A small room or monument, cut in rock or built of stone, in which a dead person is buried.
Example
The ancient king was laid to rest in a grand sepulcher.
El antiguo rey fue enterrado en un gran sepulcro.
B2 verb /ˈsʌfəkeɪt/

suffocate

asfixiar
Meaning
to cause someone to die or have difficulty breathing by depriving them of air
Example
The child nearly suffocated when trapped in the locked room.
El niño casi se asfixió cuando quedó atrapado en la habitación cerrada.
A1 adjective /ˈspɛʃəl/

special

especial
Meaning
different from what is usual; better or greater than normal
Example
This gift is very special to me.
Este regalo es muy especial para mí.
A1 noun ˈstjuː.dənt

student

estudiante
Meaning
A person who is studying at a school or university.
Example
Students participated actively in the protests.
Los estudiantes participaron activamente en las protestas.
C2 verb /ˈseɪʃiˌeɪt/

satiate

saciar
Meaning
To satisfy fully, especially with food or desire.
Example
The large meal satiated his hunger.
La gran comida sació su hambre.
B1 verb /ʃuːt/

shoot

disparar / tomar una foto
Meaning
to fire a bullet or arrow from a weapon; to take a photograph or film
Example
He learned how to shoot a bow and arrow.
Él aprendió a disparar un arco y flecha.
C2 noun /sɒmˈnæmbjʊlɪst/

somnambulist

sonámbulo
Meaning
A person who sleepwalks.
Example
The somnambulist wandered out of the house at night.
El sonámbulo salió de la casa por la noche.
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.
B2 noun /slɒt/

slot

ranura
Meaning
a narrow opening into which something fits or is placed
Example
Insert the card into the slot to open the door.
Inserta la tarjeta en la ranura para abrir la puerta.
C2 noun/verb /ˈsʌkər/

succor

socorro
Meaning
Assistance and support in times of hardship or distress.
Example
The charity provided succor to the flood victims.
La caridad proporcionó socorro a las víctimas de las inundaciones.
C1 noun /ˈʃær.ən fruːt/

Sharon fruit

fruta shéron
Meaning
a sweet orange persimmon fruit that can be eaten when firm
Example
The Sharon fruit is sweet and can be eaten like an apple.
la fruta shéron es dulce y se puede comer como una manzana.
C1 noun /sɪˈtɑːr/

Sitar

sitar
Meaning
a traditional Indian stringed musical instrument with a long neck and resonating body
Example
The sitar creates beautiful ragas in Indian classical music.
El sitar crea hermosos ragas en la música clásica india.
C2 adjective /ˈsɪlvən/

sylvan

boscosa
Meaning
Relating to or characteristic of the woods or forest.
Example
The cottage was set in a sylvan landscape full of tall trees.
La cabaña estaba situada en un paisaje boscosa lleno de árboles altos.
C2 noun /ˈʃʊərəti/

surety

garantía
Meaning
a person who takes responsibility for another's performance of an undertaking, such as appearing in court or paying a debt
Example
The landlord required a surety before renting the apartment.
El arrendador requirió una garantía antes de alquilar el apartamento.
B2 noun ˌsensɪˈtɪvɪti

sensitivity

sensibilidad
Meaning
The quality or condition of being sensitive; responsiveness to stimuli.
Example
Bose proved plant sensitivity through experiments.
Bose demostró la sensibilidad de las plantas a través de experimentos.
C2 adjective /ˈsiːmli/

seemly

apropiado
Meaning
proper or appropriate in behavior or appearance
Example
It was not seemly to argue loudly during the ceremony.
No era apropiado discutir en voz alta durante la ceremonia.
A2 adverb /ˈsɪə.ri.əs.li/

seriously

seriamente
Meaning
in a solemn or thoughtful manner
Example
She took the matter very seriously.
Ella tomó el asunto muy seriamente.
B2 adjective /ˈstɜːrdi/

sturdy

fuerte
Meaning
strongly and solidly built; not easily weakened
Example
The carpenter made a sturdy wooden table.
El carpintero hizo una mesa de madera fuerte.
C1 adjective /ˈsiː.di/

Seedy

lleno de semillas; sucio y despreciable; en mal estado
Meaning
squalid and disreputable; shabby and run-down; full of seeds
Example
They avoided walking through the seedy part of town at night.
Ellos evitaban caminar por la parte sucia y despreciable de la ciudad por la noche.
C2 noun /ˈsteɪtkraft/

statecraft

arte del gobierno
Meaning
The art of governing and managing state affairs effectively.
Example
The leader was praised for his exceptional statecraft in handling international relations.
El líder fue elogiado por su excepcional arte del gobierno en el manejo de relaciones internacionales.
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.
C2 adjective /ˈslʌvənli/

slovenly

desordenado
Meaning
Untidy or careless in appearance, habits, or work.
Example
His slovenly appearance made a bad impression at the interview.
Su apariencia desordenada causó una mala impresión en la entrevista.
C1 noun /stæɡˈneɪ.ʃən/

stagnation

estancamiento
Meaning
A state of inactivity or lack of growth, especially in an economy.
Example
High unemployment led to economic stagnation.
El alto desempleo condujo al estancamiento económico.
B2 noun steɪks

stakes

apuesta
Meaning
A strong wooden or metal post with a point at one end, driven into the ground.
Example
The stakes were high for the success of the project.
Las apuestas eran altas para el éxito del proyecto.
B1 adjective ˈʃɔːrt.tɜːrm

short-term

a corto plazo
Meaning
Occurring over or involving a relatively short period of time.
Example
Investing in stocks can yield short-term profits.
Invertir en acciones puede generar ganancias a corto plazo.
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.
B1 verb /seɪl/

sail

navegar con velas
Meaning
to travel on water in a boat or ship using sails or by wind power
Example
They sailed across the Atlantic Ocean last summer.
Ellos navegaron a través del océano Atlántico el verano pasado.
B2 noun /ˈsɪblɪŋ/

sibling

hermano/a
Meaning
A brother or sister.
Example
She has three siblings, two brothers and one sister.
Ella tiene tres hermanos, dos hermanos y una hermana.
C2 noun /ˌsæv.wɑːr ˈfeər/

savoir-faire

habilidad social
Meaning
The ability to act or speak appropriately in social situations; polished social skills.
Example
She handled the delicate situation with remarkable savoir-faire.
Ella manejó la situación delicada con un remarquable savoir-faire.
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.
B1 noun /soʊl/

Soul

alma
Meaning
the spiritual or immaterial essence of a human being or animal; a person's emotional or intellectual nature
Example
She poured her heart and soul into her artwork.
Ella vertió su corazón y alma en su obra de arte.
B2 noun sliːp ˌdɛprɪˈveɪʃən

sleep deprivation

falta de sueño
Meaning
The condition of not having enough sleep; lack of adequate sleep.
Example
Sleep deprivation can severely impact mental health.
La falta de sueño puede afectar gravemente la salud mental.
B2 adjective /ˈskɪni/

Skinny

delgado; flaco; escuálido
Meaning
very thin; having little flesh or fat on the body
Example
The skinny cat looked like it hadn't eaten for days.
El gato delgado parecía que no había comido en días.
C1 noun /spæt/

spat

disputa pequeña
Meaning
a short, petty quarrel or argument
Example
They had a brief spat about who should do the dishes.
Tuvieron una breve disputa sobre quién debería lavar los platos.
B2 noun /səbˈskraɪbər/

subscriber

suscriptor
Meaning
a person who receives or subscribes to a service, magazine, or service
Example
She is a subscriber to the monthly magazine.
Ella es suscriptora de la revista mensual.
B1 verb /sərˈvaɪv/

survive

sobrevivir
Meaning
To continue to live or exist after a difficult event or situation.
Example
He managed to survive the storm.
Él logró sobrevivir la tormenta.
C2 noun /ˈsɪŋ.krə.ni/

synchrony

sincronía
Meaning
Coordination in time, harmony in action or movement.
Example
Their dance performance showed perfect synchrony.
Su actuación de baile mostró una sincronía perfecta.
B2 noun /ˌspɛsɪfɪˈkeɪʃən/

specification

especificación
Meaning
a detailed description or assessment of something
Example
The product specification includes all the necessary details.
La especificación del producto incluye todos los detalles necesarios.
B2 adjective ˈstrʌktʃərd

structured

estructurado
Meaning
Having a clear organization or framework; systematically arranged.
Example
A structured execution plan is crucial for success.
Un plan de ejecución estructurado es crucial para el éxito.
C2 adjective /səˈɡeɪ.ʃəs/

sagacious

sabio
Meaning
Having or showing keen mental discernment and good judgment; wise.
Example
His sagacious leadership saved the company from failure.
Su sabio liderazgo salvó a la empresa del fracaso.
B1 noun ˈstrʌɡ.əl

struggle

lucha
Meaning
A forceful or violent effort to get free of restraint or resist attack; a determined effort under difficult circumstances.
Example
The struggle for independence united the nation.
La lucha por la independencia unió a la nación.
C2 noun /ˈsɔː.dər/

Sawder

adulación; halagos falsos
Meaning
flattering or wheedling talk; soft soap
Example
His sawder couldn't convince anyone of his sincerity.
Su adulación no pudo convencer a nadie de su sinceridad.
A2 noun, verb /ʃɒt/

shot

tiro
Meaning
a single attempt to hit something, usually with a weapon or a ball
Example
He took a shot at the goal.
Él tomó un tiro hacia la portería.
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.
A2 noun /ˈsuː.pəˌmɑː.kɪt/

supermarket

supermercado
Meaning
a large self-service store selling food and household goods
Example
She went to the supermarket to buy groceries.
Ella fue al supermercado a comprar víveres.
B2 noun /ˈsɪɡ.nə.tʃər/

Signature

firma
Meaning
a person's name written in their own handwriting as identification or authorization
Example
Please put your signature at the bottom of the document.
Por favor ponga su firma en la parte inferior del documento.
A2 noun /stɛps/

steps

pasos
Meaning
A measure or action, especially one of a series taken in order to deal with or achieve a particular thing.
Example
Taking small steps reduces overwhelm.
Dar pequeños pasos reduce el agobio.
B2 noun /skrɪpt/

script

guión
Meaning
The written text of a play, film, or broadcast; handwriting style.
Example
The actor memorized his lines from the script.
El actor memorizó sus répliques del guión.
B1 verb /stæmp/

stamp

estampar / pisotear
Meaning
To bring down (one's foot) heavily on the ground; to imprint a mark or seal.
Example
She stamped her foot in frustration.
Ella estampó su pie por frustración.
C2 adjective /sɪˈdɪʃəs/

seditious

sedicioso
Meaning
Encouraging rebellion against authority.
Example
The activist spread seditious pamphlets among the crowd.
El activista distribuyó folletos sediciosos entre la multitud.
C2 adjective /sɪˈlæbɪk/

syllabic

silábico
Meaning
Relating to or based on syllables.
Example
The teacher explained the syllabic structure of the word.
El maestro explicó la estructura silábica de la palabra.
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.
B2 noun /sɪlk/

silk

seda
Meaning
a fine, smooth fabric made from the threads produced by silkworms
Example
The dress was made of pure silk.
El vestido estaba hecho de seda pura.
B2 verb /ˈsʌməraɪz/

summarize

resumir
Meaning
To give a brief statement of the main points of something
Example
She summarized the report in just a few minutes.
Ella resumió el informe en solo unos minutos.
B2 noun /streɪn/

Strain

tensión; presión; agotamiento;
Meaning
pressure or tension; excessive demand on strength or resources
Example
Working long hours put a strain on his health.
Trabajar muchas horas puso una tensión en su salud.
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 /slæb/

slab

losa
Meaning
a large, thick, flat piece of stone, concrete, or other hard material
Example
The workers laid a concrete slab for the foundation.
Los trabajadores colocaron una losa de concreto para la fundación.
C1 verb /sɪndʒ/

singe

quemar ligeramente
Meaning
To burn something superficially or lightly, especially at the edges.
Example
The fire singed his eyebrows.
El fuego le quemó las cejas.
C2 adjective /ˈsæpɪd/

sapid

sabroso
Meaning
Having a pleasant taste; flavorful.
Example
The chef prepared a sapid dish that delighted everyone at the table.
El chef preparó un plato sabroso que encantó a todos en la mesa.
C2 adjective /ˈsɛrid/

serried

agrupado
Meaning
pressed or crowded together, often in rows or ranks
Example
The soldiers stood in serried ranks, ready for inspection.
Los soldados estaban en filas agrupadas, listos para la inspección.
C1 adjective /ˈsɛnʃuəl/

sensual

sensual
Meaning
Relating to or involving gratification of the senses and physical pleasure.
Example
The painting had a sensual quality that captivated viewers.
La pintura tenía una cualidad sensual que cautivó a los espectadores.
C1 verb /sərˈpæs/

surpass

superar
Meaning
to exceed or go beyond
Example
Her performance surpassed all expectations.
Su rendimiento superó todas las expectativas.
A2 abbreviation (noun/pronoun) /ˈsʌmθɪŋ/

sth.

algo
Meaning
abbreviation for 'something'
Example
Can you give me sth. to write with?
¿Puedes darme algo con qué escribir?
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.
B2 adjective /ˈstʌnɪŋ/

stunning

impresionante
Meaning
extremely impressive or attractive
Example
The view from the top of the mountain was absolutely stunning.
La vista desde la cima de la montaña era absolutamente impresionante.
C1 adjective /ˈskɛtʃi/

sketchy

incompleto
Meaning
not thorough or detailed; suspicious or unsafe
Example
The details of the project were still sketchy.
Los detalles del proyecto aún estaban incompletos.
C2 noun /ˈsɪlvər kɑrp/

Silver carp

carpa plateada
Meaning
a large freshwater fish with silvery scales, commonly farmed for food
Example
Silver carp is widely cultivated in fish farms across Asia.
La carpa plateada se cultiva ampliamente en las granjas de peces de Asia.
C2 noun /ˈstriːmlɪt/

streamlet

arroyo
Meaning
a small stream; a tiny brook or rivulet
Example
A streamlet flowed through the meadow.
Un arroyo fluía a través del prado.
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.
B2 verb /stroʊk/

stroke

acariciar
Meaning
to move your hand gently over something; to hit or touch something gently
Example
She stroked the cat's fur gently.
Ella acarició suavemente el pelaje del gato.
A2 adjective /ˈsɪŋɡəl/

single

único
Meaning
only one; not one of several
Example
She bought a single ticket for the concert.
Ella compró un boleto sencillo para el concierto.
C1 noun /ˈsɔːl.tɪd fɪʃ/

Salted fish

pescado salado
Meaning
fish preserved with salt; dried and salted fish for storage
Example
Salted fish is a traditional way to preserve seafood.
El pescado salado es una forma tradicional de conservar los mariscos.
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.
A2 adjective /ˈsɪli/

Silly

tonto; estúpido
Meaning
foolish; lacking good sense or judgement
Example
Don't be silly, of course you can do it!
¡No seas tonto, por supuesto que puedes hacerlo!
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.
B2 verb /stɜːr/

stir

revolver
Meaning
to mix or move something in a circular motion, especially in liquid
Example
She stirred the soup to make sure it didn't burn.
Ella revolvió la sopa para asegurarse de que no se quemara.
C1 adjective /ˈsʌbstəntɪv/

substantive

importante
Meaning
Having a firm basis in reality; important, meaningful, or considerable.
Example
The company made substantive changes to its policy.
La compañía hizo cambios importantes en su política.
C2 verb /skwɛltʃ/

squelch

hacer un sonido suave, como caminar en el barro; suprimir o callar
Meaning
to make a soft sucking sound, such as when walking on mud; to suppress or silence
Example
His boots squelched in the wet ground.
Sus botas hicieron un ruido de squelch en el suelo mojado.
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 verb /ʃɪə/

shear

cortar
Meaning
to cut the wool off a sheep or to cut something with sharp tools like scissors or shears
Example
The farmer will shear the sheep in the spring.
El agricultor sheará la oveja en la primavera.
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.
B2 noun /ˈsoʊlər ɪˈklɪps/

Solar eclipse

eclipse solar
Meaning
an eclipse in which the sun is obscured by the moon passing between it and the earth
Example
The solar eclipse will be visible from our city next month.
El eclipse solar será visible desde nuestra ciudad el próximo mes.
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.
C2 noun /ˈsɪmpəltən/

simpleton

persona tonta
Meaning
a foolish or gullible person
Example
They treated him like a simpleton who could not understand anything complex.
Lo trataron como una persona tonta que no podía entender nada complejo.
C2 noun /sɛnˈsɔːrɪəm/

sensorium

centro sensorial
Meaning
The part of the brain or mind concerned with the reception and interpretation of sensory stimuli.
Example
The patient’s sensorium was clouded after the accident.
El sensorium del paciente estaba nublado después del accidente.
B2 noun speɪs ɪksplɔːˈreɪʃən

space exploration

exploración espacial
Meaning
The investigation of outer space by means of manned and unmanned spacecraft.
Example
Space exploration has expanded our knowledge of the universe.
La exploración espacial ha ampliado nuestro conocimiento del universo.
B1 noun sɪˈkjʊə.rɪ.ti

security

seguridad
Meaning
The state of being free from danger, threat, or loss.
Example
Food security is essential for human survival.
La seguridad alimentaria es esencial para la supervivencia humana.
B2 adjective ˈskɒl.ə.li

scholarly

erudito
Meaning
Having or showing great knowledge or learning; academic in approach or method.
Example
He wrote a scholarly article on ancient philosophy.
Escribió un artículo erudito sobre la filosofía antigua.
B1 verb, adjective /spɛnt/

spent

gastado, agotado
Meaning
Past tense and past participle of 'spend'; also used as an adjective meaning exhausted or used up.
Example
She spent all her energy preparing for the exam.
Ella gastó toda su energía preparándose para el examen.
B2 verb /soʊ/

sow

sembrar
Meaning
to plant seeds in the ground; to scatter seeds for growing
Example
The farmer will sow wheat seeds in the field tomorrow.
El agricultor sembrará semillas de trigo en el campo mañana.
A2 noun /ˈspiːkər/

speaker

orador
Meaning
a person who speaks or talks, especially as an occupation
Example
The speaker delivered an inspiring speech at the conference.
El orador pronunció un discurso inspirador en la conferencia.
C2 noun /slaɪt/

sleight

habilidad
Meaning
Skill or dexterity, especially in performing tricks.
Example
The magician amazed the crowd with his sleight of hand.
El mago sorprendió a la multitud con su habilidad con las manos.