scuffle
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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.
B2 noun /ˌsuːvəˈnɪər/

Souvenir

souvenir
Meaning
a thing that is kept as a reminder of a person, place, or event; a memento
Example
I bought a small souvenir from the gift shop.
Compré un pequeño souvenir en la tienda de regalos.
C2 noun /ˈsʌfrədʒɪst/

suffragist

sufragista
Meaning
a person advocating the extension of suffrage, especially to women
Example
The suffragists organized rallies to demand voting rights for women.
Los sufragistas organizaron manifestaciones para exigir los derechos de voto para las mujeres.
C2 adjective /ˈstɪdʒiən/

stygian

tenebroso
Meaning
extremely dark, gloomy, or forbidding
Example
They walked through the stygian cave with torches.
Caminaban a través de la cueva tenebrosa con antorchas.
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.
B1 noun səˈplaɪ

supply

suministro. provisión.
Meaning
A stock or amount of something supplied or available for use.
Example
Supply chains ensure resource availability.
Las cadenas de suministro aseguran la disponibilidad de recursos.
C2 noun /ˈsælvər/

salver

bandeja de plata
Meaning
A tray, typically made of silver, used for serving food or drinks.
Example
The butler brought in the tea on a silver salver.
El mayordomo trajo el té en una bandeja de plata.
B2 verb /straɪd/

stride

caminar con pasos largos y decisivos; hacer progresos
Meaning
to walk with long, decisive steps; to make progress
Example
She strode confidently across the stage.
Ella caminó con confianza por el escenario.
C2 verb /sʌbˈtɛnd/

subtend

subtender
Meaning
To extend across or form an angle at a particular point, often used in geometry.
Example
The arc subtends a 60-degree angle at the center of the circle.
El arco subtende un ángulo de 60 grados en el centro del círculo.
B2 noun /sɪˈver.ə.ti/

Severity

gravedad; severidad; dureza
Meaning
the quality of being extremely serious or harsh; intensity of something bad
Example
The severity of the storm caused widespread damage across the city.
La severidad de la tormenta causó daños generalizados en toda la ciudad.
C2 adjective /səˈmætɪk/

somatic

somático
Meaning
Relating to the body, especially as distinct from the mind.
Example
Yoga can improve both somatic and mental health.
El yoga puede mejorar tanto la salud somática como mental.
A2 verb /sɑːlv/

solve

resolver
Meaning
to find an answer to a problem or question; to resolve a difficulty
Example
The detective finally solved the mysterious case.
El detective finalmente resolvió el caso misterioso.
B1 noun /sleɪv/

slave

esclavo
Meaning
a person who is the legal property of another and is forced to work for them
Example
The abolitionist movement fought for the rights of slaves.
El movimiento abolicionista luchó por los derechos de los esclavos.
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 adjective /sɪˈnɒptɪk/

synoptic

sinóptico
Meaning
giving a general overview or summary; presenting a broad view
Example
The report offers a synoptic view of climate trends over the past century.
El informe ofrece una vista sinóptica de las tendencias climáticas del siglo pasado.
B2 verb /skwɒʃ/

squash

aplastar
Meaning
to crush or squeeze something with force so that it becomes flat or broken
Example
She accidentally squashed the bug with her shoe.
Ella accidentalmente aplastó el insecto con su zapato.
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.
B1 noun ˈsaɪləns

silence

silencio
Meaning
Complete absence of sound; quietness.
Example
Silence filled the air near the graves.
El silencio llenó el aire cerca de las tumbas.
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 /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.
A2 noun /soʊp/

Soap

jabón
Meaning
a cleaning agent made from fats or oils and used for washing
Example
Please wash your hands with soap and water.
Por favor, lávese las manos con jabón y agua.
B1 adjective ˌsaɪənˈtɪfɪk

scientific

científico
Meaning
Based on or characterized by the methods and principles of science.
Example
Scientific discoveries continue to shape our understanding of the world.
Los descubrimientos científicos siguen dando forma a nuestra comprensión del mundo.
A2 adverb /ˈsʌm.taɪm/

sometime

algún día
Meaning
at a time that is not known or stated; occasionally
Example
Let's meet for coffee sometime next week.
Vamos a encontrarnos para tomar un café algún día la próxima semana.
B2 verb /skeər/

scare

asustar
Meaning
to frighten someone or make them feel afraid
Example
The loud noise scared the baby.
El ruido fuerte asustó al bebé.
C2 adjective /spæzˈmɒdɪk/

spasmodic

espasmódico
Meaning
occurring irregularly or in sudden bursts
Example
The patient experienced spasmodic coughing during the night.
El paciente experimentó tos espasmódica durante la noche.
A1 pronoun /ʃi/

she

ella
Meaning
a female person or animal previously mentioned or easily identified
Example
She is going to the market to buy vegetables.
Ella va al mercado a comprar verduras.
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.
B2 noun /ˈsɪnənɪm/

Synonym

sinónimo
Meaning
a word or phrase that means exactly or nearly the same as another word or phrase in the same language
Example
Happy and joyful are synonyms.
Feliz y alegre son sinónimos.
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.
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 /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.
A2 noun /stɛp/

step

paso
Meaning
a movement made by lifting one foot and putting it down in a new position
Example
She took a step towards the door.
Ella dio un paso hacia la puerta.
B2 noun /skɑːr/

Scar

cicatriz
Meaning
a mark left on the skin after a wound has healed; lasting emotional damage
Example
The accident left a permanent scar on his forehead.
El accidente dejó una cicatriz permanente en su frente.
B2 adverb /ˈstɛdɪli/

steadily

de manera constante
Meaning
in a regular and continuous way; without stopping or changing
Example
The company's profits have been increasing steadily.
Las ganancias de la empresa han aumentado de manera constante.
C2 noun /sfɛˈrɪsɪti/

sphericity

esfericidad
Meaning
The quality or state of being spherical; roundness.
Example
The sphericity of the ball made it roll smoothly on the ground.
La esfericidad de la pelota permitió que rodara suavemente sobre el suelo.
C1 noun /ˈsɪstərhʊd/

sisterhood

hermandad
Meaning
The relationship between sisters, or a community of women united by shared experiences or goals.
Example
The feminist movement created a strong sense of sisterhood among women.
El movimiento feminista creó un fuerte sentido de hermandad entre las mujeres.
C2 noun /ˈseɪnjər/

seignior

señor feudal
Meaning
A feudal lord; a man of authority in medieval Europe.
Example
The seignior demanded taxes from the peasants.
El señor feudal exigió impuestos a los campesinos.
B2 verb /ˈskrɪbəl/

scribble

garabatear
Meaning
to write or draw carelessly or quickly
Example
The child scribbled all over the wall.
El niño garabateó por toda la pared.
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.
B1 noun /ˈsæm.pəl/

Sample

muestra
Meaning
a small part taken as an example of the whole; a specimen
Example
The doctor took a blood sample for testing.
El doctor tomó una muestra de sangre para la prueba.
B2 adjective strəˈtiː.dʒɪk

strategic

estratégico
Meaning
Relating to the identification of long-term or overall aims and interests and the means of achieving them.
Example
Strategic policies enhance competitiveness.
Las políticas estratégicas mejoran la competitividad.
A2 verb /sɔːrt/

sort

ordenar
Meaning
to arrange or categorize something
Example
Please sort the files by date.
Por favor ordena los archivos por fecha.
A1 noun /ˈsɛvən/

seven

siete
Meaning
the number following six and preceding eight
Example
She has seven apples in her basket.
Ella tiene siete manzanas en su cesta.
B2 adverb /ˈsɪmɪlərli/

similarly

de manera similar
Meaning
in a similar way
Example
Similarly, we can achieve success with dedication and hard work.
De manera similar, podemos lograr el éxito con dedicación y trabajo arduo.
A1 noun /ˈsʌmər/

summer

verano
Meaning
the warmest season of the year, between spring and autumn
Example
We love going to the beach during summer.
Nos encanta ir a la playa durante el verano.
A2 noun /ˈswɛtər/

sweater

suéter
Meaning
a warm knitted piece of clothing worn on the upper body
Example
She wore a red sweater to keep warm in the cold weather.
Ella llevó un suéter rojo para mantenerse abrigada en el clima frío.
C2 noun /sneɪk ɡɔːrd/

Snake gourd

calabaza serpiente
Meaning
a long, curved vegetable that resembles a snake, commonly used in South Asian cuisine
Example
The snake gourd grows in a twisted, serpentine shape in the garden.
La calabaza serpiente crece en una forma retorcida y serpenteante en el jardín.
B2 verb /swer/

swear

jurar; maldecir; prometer solemnemente
Meaning
to use offensive language; to promise solemnly; to take an oath
Example
I swear to tell the truth.
Juro decir la verdad.
C1 noun /ˈspaɪər/

spire

aguja
Meaning
a tall, pointed structure on top of a building, especially a church
Example
The church spire could be seen from miles away.
La aguja de la iglesia se podía ver desde kilómetros de distancia.
B2 verb /ˈstræŋɡəl/

strangle

estrangular
Meaning
to kill or stop someone or something by squeezing the throat or restricting flow
Example
The villain tried to strangle his opponent in the dark alley.
El villano intentó estrangular a su oponente en el callejón oscuro.
C2 noun /stɒˈkeɪd/

stockade

murallas de madera
Meaning
a defensive barrier made of strong posts or timbers, often around a fort or prison
Example
The prisoners were kept inside the wooden stockade.
Los prisioneros fueron mantenidos dentro de las murallas de madera.
B2 noun ˈsoʊʃəl rɪˌspɒnsəˈbɪləti

social responsibility

responsabilidad social
Meaning
The duty to act in ways that benefit society as a whole.
Example
Social responsibility should be part of the education curriculum.
La responsabilidad social debe ser parte del currículo educativo.
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.
B1 noun /ˈsʌn.flaʊər/

Sun flower

girasol
Meaning
a large yellow flower that turns to face the sun
Example
The sunflower field looked amazing in the bright sunlight.
El campo de girasoles se veía increíble bajo la luz brillante del sol.
C2 noun /spʌndʒ ɡɔːrd/

Sponse gourd

calabaza esponjosa
Meaning
a fibrous gourd that becomes sponge-like when dried, used for cleaning and in cooking when young
Example
The sponge gourd can be eaten when young or dried to make natural scrubbers.
La calabaza esponjosa puede comerse cuando está joven o secarse para hacer estropajos naturales.
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.
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.
B2 noun /skwɒd/

squad

escuadra
Meaning
a small group of people organized for a specific purpose or task, often in the military or sports
Example
The football squad trained hard before the championship match.
El equipo de fútbol entrenó duro antes del partido de campeonato.
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.
A2 noun /ʃiːp/

sheep

oveja
Meaning
a farm animal with thick wool that is raised for its wool, meat, and milk
Example
The farmer keeps a large flock of sheep.
El granjero mantiene un gran rebaño de ovejas.
A2 noun /ˈsɛlər/

seller

felicidad
Meaning
a person who sells something
Example
The seller offered a discount on bulk purchases.
Ella no pudo ocultar su felicidad cuando recibió el premio.
B2 noun /ˈspaɪs bɒks/

Spice box

caja de especias
Meaning
a container used to store various spices and seasonings
Example
She opened the spice box to find cumin for her curry.
Ella abrió la caja de especias para encontrar comino para su curry.
B2 adjective ˈstrʌktʃərəl

structural

estructural
Meaning
Relating to or forming part of a structure.
Example
The structural integrity of the bridge was tested after the storm.
La integridad estructural del puente fue probada después de la tormenta.
C1 adjective /ˈsɒnɪk/

sonic

sonico
Meaning
Relating to or involving sound waves or speed of sound.
Example
The jet created a loud boom when it broke the sonic barrier.
El jet creó un fuerte estruendo cuando rompió la barrera sónica.
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.
C2 adjective /ˌsuː.pər.ɪˈrɑː.ɡə.tɔːr.i/

supererogatory

supererogatorio
Meaning
Going beyond what is required or expected; more than necessary.
Example
His donation was supererogatory, far beyond what anyone had asked for.
Su donación fue supererogatoria, mucho más allá de lo que alguien había pedido.
C1 adjective /ˈspel.baʊnd/

Spellbound

hechizado; cautivado
Meaning
completely fascinated and unable to move or think about anything else; enchanted
Example
The children sat spellbound as the magician performed his tricks.
Los niños se quedaron hechizados mientras el mago hacía sus trucos.
B2 adverb /ˈstrɪktli/

strictly

estrictamente
Meaning
in a way that follows rules or limits completely
Example
Smoking is strictly prohibited inside the building.
Fumar está estrictamente prohibido dentro del edificio.
C2 noun /ˈsaʊər wʊd ˈæp.əl/

Sour wood apple

manzana de elefante
Meaning
a tropical fruit with hard shell and tangy flesh; elephant apple
Example
The sour wood apple has a unique taste that many people enjoy.
La manzana de elefante tiene un sabor único que muchas personas disfrutan.
C2 adjective /ˈsɑːdn/

sodden

empapado
Meaning
thoroughly soaked or saturated with liquid
Example
His clothes were sodden after the heavy rain.
Su ropa estaba empapada después de la lluvia intensa.
C2 noun /ˈsɒlɪˌsɪzəm/

solecism

solecismo
Meaning
a grammatical mistake in speech or writing; a breach of good manners or etiquette
Example
His speech was full of solecisms and awkward phrases.
Su discurso estaba lleno de solecismos y frases incómodas.
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.
A2 noun /ˈsɪŋ.ər/

Singer

cantante
Meaning
a person who sings, especially as a job or profession
Example
The singer performed beautifully at the concert last night.
El cantante realizó una hermosa actuación en el concierto de anoche.
B2 noun /səˈnɛərioʊ/

scenario

situación posible
Meaning
a possible situation or sequence of events
Example
The company prepared for the worst-case scenario.
La empresa se preparó para el peor de los casos.
B1 noun /ˈsɛkʃən/

section

sección
Meaning
a distinct part or subdivision of something larger
Example
This section of the report needs further review.
Esta sección del informe necesita una revisión adicional.
B2 adjective /ˈslɒp.i/

Sloppy

desordenado; sucio; hecho sin cuidado o atención a los detalles
Meaning
careless; messy; done without care or attention to detail
Example
His sloppy handwriting was difficult to read.
Su escritura desordenada era difícil de leer.
C1 adjective /stɔːntʃ/

staunch

firme, leal
Meaning
Loyal, committed, and firm in support.
Example
She is a staunch supporter of environmental protection.
Ella es una firme defensora de la protección del medio ambiente.
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.
A2 adjective /sər'praɪzd/

Surprised

sorprendido
Meaning
feeling or showing surprise; astonished
Example
I was surprised to see my old friend at the market.
Me sorprendió ver a mi viejo amigo en el mercado.
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.
C2 noun /ˈseɪ.li.əns/

salience

saliencia
Meaning
The quality of being particularly noticeable or important; prominence.
Example
The salience of the issue was highlighted in the debate.
La saliencia del asunto se destacó en el debate.
C1 noun /ˌsæbəˈtɜːr/

saboteur

saboteador
Meaning
A person who engages in sabotage.
Example
The saboteur was arrested before he could plant the bomb.
El saboteador fue arrestado antes de poder plantar la bomba.
B2 verb /səbˈtrækt/

subtract

restar
Meaning
to take away a number or amount from another number or amount
Example
If you subtract 5 from 10, you get 5.
Si restas 5 de 10, obtienes 5.
A2 noun /ˈsɒftweə/

software

software
Meaning
the programs and other operating information used by a computer
Example
He installed the software to enhance the performance of his computer.
Instaló el software para mejorar el rendimiento de su computadora.
B1 noun /ˈsiː.hɔːrs/

Sea-horse

caballo marino
Meaning
a small marine fish with segmented bony armor, an upright posture, and a curled prehensile tail
Example
The seahorse gracefully floated among the coral reefs.
El caballo marino flotó graciosamente entre los arrecifes de coral.
A2 noun /siːd/

seed

semilla
Meaning
the small, hard part of a plant from which a new plant can grow
Example
I planted a seed in the garden.
Plante una semilla en el jardín.
B1 noun /ʃeɪm/

Shame

vergüenza
Meaning
a painful feeling of humiliation or distress; something regrettable
Example
He felt deep shame for his dishonest behavior at work.
Sintió una profunda vergüenza por su comportamiento deshonesto en el trabajo.
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.
C2 verb /ˈsæŋktɪfaɪ/

sanctify

santificar
Meaning
to make holy or sacred; to purify
Example
The priest will sanctify the marriage ceremony.
El sacerdote santificará la ceremonia de matrimonio.
B2 noun /səˈspɛnʃən/

suspension

suspensión
Meaning
The act of temporarily stopping something; also refers to a system in vehicles that absorbs shock.
Example
The player received a three-game suspension for misconduct.
El jugador recibió una suspensión de tres partidos por mala conducta.
C2 verb /ˈstʌltɪfaɪ/

stultify

hacer parecer tonto o dificultar la efectividad y el entusiasmo
Meaning
to make someone or something appear foolish, or to hinder effectiveness and enthusiasm
Example
The repetitive tasks seemed to stultify the workers' creativity.
Las tareas repetitivas parecían atontar la creatividad de los trabajadores.
B2 adjective /ˈspaɪ.rəl/

Spiral

espiral
Meaning
winding in a continuous curve; helical
Example
The spiral staircase led to the top floor.
La escalera espiral condujo al piso superior.
C1 noun səˌsɛp.təˈbɪl.ə.ti

susceptibility

susceptibilidad
Meaning
The quality of being likely to be influenced or harmed by a particular thing; vulnerability.
Example
High susceptibility to infections requires extra care.
Alta susceptibilidad a infecciones requiere atención adicional.
C2 noun /sʌbˈɔːl.tən/

subaltern

persona en una posición subordinada; en el ejército, un oficial joven
Meaning
A person holding a subordinate position; in the military, a junior officer.
Example
The subaltern was responsible for leading a small platoon of soldiers.
El subalterno era responsable de dirigir un pequeño pelotón de soldados.
C2 adjective /ˈsɪbɪlaɪn/

sibylline

sibila
Meaning
Prophetic, mysterious, or cryptic in meaning.
Example
The old woman gave a sibylline warning about the future.
La anciana dio una advertencia sibila sobre el futuro.
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 /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.
B2 adverb ˌsɪməlˈteɪnɪəsli

simultaneously

simultáneamente
Meaning
At the same time; occurring or existing at the same time.
Example
He worked on two projects simultaneously.
Trabajó en dos proyectos simultáneamente.
B2 noun /sfɪər/

sphere

esfera
Meaning
a round, three-dimensional shape that is perfectly symmetrical around its center; an area of activity or knowledge
Example
The Earth is almost a perfect sphere.
La Tierra es casi una esfera perfecta.
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.
B2 noun/verb /skɔːrn/

scorn

desprecio
Meaning
the feeling or expression of contempt or disdain; to treat with contempt
Example
She looked at him with open scorn.
Ella lo miró con desprecio.
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 verb /səbˈmɜːrdʒ/

submerge

sumergir
Meaning
to put under water or cover with liquid
Example
The floodwaters threatened to submerge the village.
Las aguas de la inundación amenazaron con sumergir el pueblo.
B2 noun /ˈsɜr.neɪm/

Surname

apellido
Meaning
a hereditary name common to all members of a family; family name
Example
Please write your first name and surname on the form.
Por favor, escriba su primer nombre y apellido en el formulario.
C1 verb /ˈsnɪkər/

snicker

reírse disimuladamente
Meaning
to laugh quietly in a disrespectful or mocking way
Example
The students snickered when the teacher made a mistake.
Los estudiantes se rieron cuando el maestro cometió un error.
C1 noun /ˈsɑːɡə/

saga

gran historia
Meaning
A long story of heroic achievement, or a long, complex series of events.
Example
The company's rise and fall became a corporate saga.
El ascenso y la caída de la empresa se convirtió en una saga corporativa.
B2 adjective /ˈspiː.di/

Speedy

rápido; veloz; ágil;
Meaning
moving or happening quickly; fast
Example
The speedy delivery service arrived within an hour.
El servicio de entrega rápido llegó en una hora.
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.
C2 noun /ˌsuː.pɚˈfluː.ə.t̬i/

superfluity

superfluidad
Meaning
An excessive amount of something; more than what is needed.
Example
The room was filled with a superfluity of decorations.
La habitación estaba llena de una superfluidad de decoraciones.
C1 noun /ˈsɜːrəɡət/

surrogate

sustituto
Meaning
A substitute, especially a person deputizing for another in a specific role or office.
Example
The surrogate mother gave birth to the child after carrying it for nine months.
La madre sustituta dio a luz al niño tras llevarlo durante nueve meses.
B2 noun /spɑːrk/

Spark

chispa
Meaning
a small fiery particle thrown off from a fire; a flash of light; something that triggers or initiates
Example
A spark from the campfire ignited the dry leaves.
Una chispa del fuego de campamento encendió las hojas secas.
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.
A2 noun/verb/adjective /ˈsʌbdʒɪkt/ (noun), /səbˈdʒɛkt/ (verb)

subject

tema
Meaning
noun: a topic or theme; verb: to cause to undergo; adjective: dependent or under authority
Example
The teacher introduced a new subject in class.
El maestro presentó una nueva asignatura en la clase.
C2 adjective /ˌstaʊtˈhɑːrtɪd/

stouthearted

valiente
Meaning
Brave, determined, and courageous
Example
The stouthearted soldier never gave up.
El soldado valiente nunca se rindió.
A1 noun /ˈsætərdeɪ/

saturday

sábado
Meaning
The day of the week between Friday and Sunday; traditionally the sixth day of the week
Example
We are going to the beach on Saturday.
Vamos a la playa el sábado.
B2 noun səbˈstænʃəl ˈɪmpækt

substantial impact

impacto sustancial
Meaning
A significant, considerable, and meaningful effect or influence.
Example
Substantial impact is possible even with a few hours of volunteering.
El impacto sustancial es posible incluso con unas pocas horas de voluntariado.
C1 adjective /ˈsaɪz.mɪk/

seismic

sísmico
Meaning
Relating to earthquakes or vibrations of the earth and its crust.
Example
The region is known for its seismic activity.
La región es conocida por su actividad sísmica.
C2 noun /ˈsɒfɪzəm/

sophism

sofisma
Meaning
a clever but misleading argument; fallacious reasoning
Example
The politician's speech was full of sophism designed to mislead voters.
El discurso del político estaba lleno de sofismo diseñado para engañar a los votantes.
B1 adjective ˈsen.sɪ.tɪv

sensitive

sensible
Meaning
Quick to detect or respond to slight changes, signals, or influences.
Example
Sensitive systems require precise handling.
Los sistemas sensibles requieren un manejo preciso.
B2 verb, noun /sniːz/

sneeze

estornudar
Meaning
to expel air involuntarily from the nose and mouth due to irritation; the act of sneezing
Example
I had to sneeze during the meeting.
Tuve que estornudar durante la reunión.
C1 noun /ˈsæf.rən/

Saffron

azafrán
Meaning
a deep yellow-orange color; an expensive spice derived from crocus flowers
Example
The saffron fabric looked beautiful in the sunlight.
La tela de azafrán se veía hermosa a la luz del sol.