surreptitious
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C2 adjective ˌsʌr.əpˈtɪʃ.əs

surreptitious

secreto
Meaning
Kept secret, especially because it would not be approved of; done stealthily.
Example
She took a surreptitious glance at his notes.
Ella echó un vistazo secreto a sus notas.
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.
C2 noun /ˈsɑːrdʒənt ət ɑːrmz/

sergeant-at-arms

sargento de armas
Meaning
An officer responsible for maintaining order during meetings or legislative sessions.
Example
The sergeant-at-arms escorted the disruptive member out of the hall.
El sargento de armas escoltó al miembro disruptivo fuera del salón.
C2 adjective /səˈdʒɛstəbəl/

suggestible

sugestionable
Meaning
easily influenced by the suggestions of others
Example
Children are highly suggestible and may believe what they are told.
Los niños son altamente sugestionables y pueden creer lo que se les dice.
C2 adjective /ˌsɛm.iˈkɒn.ʃəs/

semiconscious

semi-consciente
Meaning
Only partly conscious; not fully aware of surroundings.
Example
He was semiconscious after the accident and could barely respond.
Él estaba semi-consciente después del accidente y apenas podía responder.
C2 verb /səˈbɔːrn/

suborn

sobornar
Meaning
to bribe or induce someone unlawfully to perform an act, especially to commit perjury
Example
The lawyer was accused of trying to suborn a witness.
El abogado fue acusado de intentar sobornar a un testigo.
C2 noun /sɒl/

sol

sol (quinto tono de la escala musical)
Meaning
The fifth note of the sol-fa musical scale (do, re, mi, fa, sol, la, ti); also the Latin word for sun
Example
The choir practiced singing the note sol during rehearsal.
El coro practicó cantar la nota sol durante el ensayo.
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.
C2 adjective /ˈsɪmiən/

simian

simio
Meaning
Relating to, resembling, or affecting apes or monkeys.
Example
The scientist studied the simian behavior of the chimpanzees.
El científico estudió el comportamiento simio de los chimpancés.
C2 noun /ˈslæt.ən/

slattern

mujer descuidada
Meaning
a woman who is untidy or slovenly in appearance or habits
Example
The house looked as if a slattern lived there.
La casa parecía como si una mujer descuidada viviera allí.
C2 noun /ˈsʊrmə fɪʃ/

Surma fish

pez Surma
Meaning
a freshwater fish species found in the Surma river system of Bangladesh and northeastern India
Example
Surma fish is native to the rivers of Sylhet region.
El pez Surma es originario de los ríos de la región de Sylhet.
C2 noun /seɪn/

seine

gran red
Meaning
A large fishing net that hangs vertically in the water.
Example
The fishermen cast their seine into the river.
Los pescadores echaron su gran red en el río.
C2 noun /ˈsɪbɪləns/

sibilance

sonido susurrante
Meaning
A hissing or hushing sound, especially in speech with 's' or 'sh'.
Example
The poet used sibilance to create a soft, hissing effect in the verse.
El poeta usó la sibilancia para crear un efecto suave de siseo en el verso.
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 /ˈsteɪ.dʒi/

stagy

excesivamente teatral
Meaning
Overly theatrical, artificial, or exaggerated in manner or style.
Example
Her performance felt stagy and unnatural.
Su actuación se sintió excesivamente teatral y antinatural.
C2 noun /ˈsʌfərəns/

sufferance

tolerancia
Meaning
patient endurance of pain, hardship, or delay; passive consent or tolerance
Example
He lived in poverty with quiet sufferance.
Vivió en la pobreza con tolerancia silenciosa.
C2 noun /ˈstætɪks/

statics

estática
Meaning
The branch of mechanics dealing with bodies at rest and forces in equilibrium.
Example
She is studying statics as part of her engineering course.
Ella está estudiando estática como parte de su curso de ingeniería.
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.
C2 noun /ˈsætər/

satyr

felicidad
Meaning
a creature from Greek mythology depicted as a lustful being, often half-man and half-goat; by extension, a lecherous man
Example
In the museum mural, a satyr plays the panpipes while dancing in the woods.
No pudo ocultar su felicidad cuando recibió el premio.
C2 adjective /ˈsætərˌnaɪn/

saturnine

saturnino
Meaning
slow and gloomy in mood
Example
His saturnine expression made everyone in the room uncomfortable.
Su expresión saturnina hizo que todos en la habitación se sintieran incómodos.
C2 noun /ˈsɜːfdəm/

serfdom

servidumbre
Meaning
The status or condition of being a serf, bound to work for a lord.
Example
Many peasants in medieval Europe lived under serfdom.
Muchos campesinos en la Europa medieval vivían bajo la servidumbre.
C2 noun /ˈsweɪʒən/

suasion

persuasión
Meaning
the act of persuading or influencing someone
Example
The leader used gentle suasion to win support for the plan.
El líder usó una suave persuasión para ganar apoyo para el plan.
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.
C2 noun /sɜːrˈsiːs/

surcease

cese
Meaning
a temporary or final ending or stopping of something
Example
The noise finally came to a surcease after midnight.
El ruido finalmente llegó a un cese después de medianoche.
C2 noun /ˈsɛm.ɪ.nɛr.i/

seminary

seminario
Meaning
A school or college for training priests, ministers, or rabbis.
Example
He decided to enroll in a seminary to study theology.
Decidió inscribirse en un seminario para estudiar teología.
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.
C2 adjective /saɪˈdɪəriəl/

sidereal

sideral
Meaning
Relating to the stars or constellations; measured relative to the stars.
Example
Astronomers use sidereal time to track the positions of stars.
Los astrónomos usan el tiempo sideral para rastrear las posiciones de las estrellas.
C2 adjective /ˌsʌpəzɪˈtɪʃəs/

supposititious

supositorio
Meaning
Based on assumption rather than fact; not genuine or authentic.
Example
The story turned out to be supposititious, with no evidence to support it.
La historia resultó ser supuesta, sin evidencia que la apoyara.
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.
C2 noun /səˈvɑːnt/

savant

felicidad
Meaning
a learned person, especially a distinguished scientist or scholar; sometimes used in the phrase ‘savant syndrome’ for someone with exceptional abilities alongside developmental differences
Example
The conference keynote was delivered by a linguistic savant who studies endangered languages.
No pudo ocultar su felicidad cuando recibió el premio.
C2 noun /ˈsfɛrɔɪd/

spheroid

esferoide
Meaning
A three-dimensional shape that is almost spherical but slightly flattened or elongated.
Example
The Earth is not a perfect sphere but an oblate spheroid.
La Tierra no es una esfera perfecta sino un esferoide oblato.
C2 verb /ˌsuːpərˈhiːt/

superheat

sobrecalentar
Meaning
to heat a substance beyond its normal boiling point without it becoming vapor
Example
Engineers superheat the steam to increase the efficiency of the turbine.
Los ingenieros sobrecalientan el vapor para aumentar la eficiencia de la turbina.
C2 noun /ˈslʌɡərd/

sluggard

perezoso
Meaning
A lazy, sluggish person.
Example
The sluggard refused to get out of bed even at noon.
El perezoso se negó a levantarse de la cama incluso al mediodía.
C2 adjective /səˈræfɪk/

seraphic

angelical
Meaning
Of or like a seraph; angelic, pure, and blissful.
Example
She gave him a seraphic smile that calmed his fears.
Le dio una sonrisa angelical que calmó sus miedos.
C2 adjective /səˈprɛsəbl̩/

suppressible

suprimible
Meaning
capable of being restrained, controlled, or prevented
Example
The symptoms of the disease are suppressible with medication.
Los síntomas de la enfermedad son suprimibles con medicación.
C2 adjective /ˈskʌr.ɪ.ləs/

scurrilous

calumnioso
Meaning
Using or expressed in coarse, abusive, or slanderous language.
Example
The politician faced criticism for his scurrilous remarks about his opponent.
El político enfrentó críticas por sus comentarios calumniosos sobre su oponente.
C2 noun /ˌsuː.pər.əˈbʌn.dəns/

superabundance

superabundancia
Meaning
An excessive or overflowing amount of something.
Example
The garden was filled with a superabundance of flowers.
El jardín estaba lleno de una superabundancia de flores.
C2 adjective /ˈsæ.loʊ/

sallow

amarillo pálido
Meaning
Of an unhealthy yellow or pale brown color, often referring to skin.
Example
His sallow complexion made him look tired and sickly.
Su complexión amarilla pálida lo hacía parecer cansado y enfermo.
C2 adjective /sɛpˈtɛnɪəl/

septennial

septenario
Meaning
Occurring every seven years.
Example
The festival is a septennial tradition in the village.
El festival es una tradición septenaria en el pueblo.
C2 verb /ˈsʌplɪˌkeɪt/

supplicate

suplicar
Meaning
To ask for something earnestly or humbly, often in a religious context.
Example
The villagers supplicated the gods for rain during the drought.
Los aldeanos suplicaron a los dioses por lluvia durante la sequía.
C2 noun /ˈspuːnərɪzəm/

spoonerism

espúnarismo
Meaning
A verbal error in which the initial sounds of words are swapped to create a humorous effect.
Example
He made a spoonerism by saying 'queer old dean' instead of 'dear old queen'.
Hizo un espúnarismo al decir 'querido viejo dean' en lugar de 'querida vieja reina'.
C2 noun /ˈswɑːvɪti/

suavity

suavidad y encanto
Meaning
smoothness and charm in manner
Example
His suavity made him popular in social gatherings.
Su suavidad lo hizo popular en reuniones sociales.
C2 adjective /ˈsɪbɪlənt/

sibilant

con sonido sibilante
Meaning
Making or characterized by a hissing sound.
Example
The word 'snake' starts with a sibilant sound.
La palabra 'snake' comienza con un sonido sibilante.
C2 adjective /spraɪ/

spry

ágil
Meaning
active and lively, especially in old age
Example
The spry grandmother surprised everyone with her quick dance steps.
La abuela ágil sorprendió a todos con sus rápidos pasos de baile.
C2 noun /ˈsuːpsɒ̃/

soupcon

una pequeña cantidad
Meaning
a very small quantity of something; a trace
Example
She added just a soupcon of spice to the dish.
Ella añadió solo una pequeña cantidad de especia al plato.
C2 noun /ˈspɒt.ɪd sneɪk hed/

Spotted snake head

pez cabeza de serpiente moteada
Meaning
a type of freshwater fish with spotted markings and an elongated head resembling a snake
Example
The spotted snake head is a popular fish for aquaculture in South Asia.
El pez cabeza de serpiente moteada es popular para la acuicultura en el sur de Asia.
C2 verb /səbˈsjuːm/

subsume

incluir
Meaning
To include or absorb something into a larger group or category.
Example
Minor details were subsumed under the main topic.
Los detalles menores fueron subsumidos bajo el tema principal.
C2 noun /ˈstrɪplɪŋ/

stripling

joven
Meaning
a young man who is not yet fully grown
Example
The stripling dreamed of becoming a brave knight.
El joven soñaba con convertirse en un valiente caballero.
C2 noun /sɑːrˈkɒfəɡəs/

sarcophagus

ataúd de piedra
Meaning
A stone coffin, often decorated, used in ancient times.
Example
The museum displayed a beautifully carved sarcophagus from ancient Egypt.
El museo exhibió un ataúd de piedra bellamente tallado de la antigua Egipto.
C2 noun /ʃiːf/

sheaf

manojo de trigo
Meaning
a bundle of grain stalks laid lengthwise and tied together after reaping; a bundle of objects tied together
Example
The farmer carried a sheaf of wheat on his shoulder.
El agricultor llevaba un manojo de trigo sobre su hombro.
C2 verb /ˈsnʌfəl/

snuffle

respirar ruidosamente por la nariz
Meaning
to breathe noisily through the nose, often because of crying or a cold
Example
The child began to snuffle after crying for a long time.
El niño comenzó a respirar ruidosamente por la nariz después de llorar durante mucho tiempo.
C2 verb /ˌsuːpərˈæd/

superadd

superagregar
Meaning
to add something to what has already been added
Example
The author chose to superadd a new chapter to the revised edition.
El autor eligió superagregar un nuevo capítulo a la edición revisada.
C2 adjective /ˈstɜːr.tər.əs/

stertorous

ronquido fuerte
Meaning
Characterized by heavy snoring or breathing.
Example
The patient’s stertorous breathing alarmed the nurses.
La respiración estertorosa del paciente alarmó a las enfermeras.
C2 adjective /sɒmˈnɪfərəs/

somniferous

somnífero
Meaning
Tending to induce sleep; soporific.
Example
The professor's somniferous lecture put half the class to sleep.
La conferencia somnífera del profesor puso a la mitad de la clase a dormir.
C2 verb /skʌlk/

skulk

moverse sigilosamente
Meaning
to move or hide secretly, often because you are planning something bad or are feeling guilty
Example
He tried to skulk in the shadows to avoid being seen.
Intentó moverse sigilosamente entre las sombras para evitar ser visto.
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 sɑːˈtɔːrɪəl

sartorial

relacionado con la ropa o el estilo
Meaning
Of or relating to clothing or style or manner of dress.
Example
His sartorial choices were always on trend and admired.
Sus elecciones sartoriales siempre estaban a la moda y eran admiradas.
C2 verb /sɪˈkwɛstreɪt/

sequestrate

confiscar
Meaning
To take legal possession of assets until a debt is paid or disputes are resolved.
Example
The court decided to sequestrate the company's property.
El tribunal decidió confiscar la propiedad de la empresa.
C2 adjective /sʌbˈdʒeɪsənt/

subjacent

subyacente
Meaning
lying immediately beneath; underlying
Example
The geological survey revealed subjacent layers of rock.
La encuesta geológica reveló capas subyacentes de roca.
C2 noun /səbˈsɜːviəns/

subservience

subyugación
Meaning
the condition of being too willing to obey or serve others
Example
His subservience to authority annoyed his colleagues.
Su subyugación a la autoridad molestó a sus colegas.
C2 adjective /ˈslæp.dæʃ/

slapdash

hecho a la ligera
Meaning
done too quickly and carelessly; hasty and careless
Example
The report was written in a slapdash manner, full of errors.
El informe fue escrito de manera apresurada, lleno de errores.
C2 verb /sɛkˈstuːpəl/

sextuple

sextuplicar
Meaning
to make or become six times as great or as many
Example
Within two quarters, the campaign sextupled their daily sign-ups.
En dos trimestres, la campaña sextuplicó sus registros diarios.
C2 noun /ˈstiː.vəˌdɔːr/

stevedore

estibador
Meaning
A person employed to load and unload cargo from ships.
Example
The stevedores worked tirelessly to unload the cargo before dawn.
Los estibadores trabajaron incansablemente para descargar la carga antes del amanecer.
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.
C2 verb /sweɪð/

swathe

envolver
Meaning
To wrap or cover closely or completely.
Example
She swathed the baby in a soft blanket.
Ella envolvió al bebé en una manta suave.
C2 adjective səˈluː.bri.əs

salubrious

saludable
Meaning
Health-giving; healthy; promoting health and well-being.
Example
The mountain air is salubrious and refreshing.
El aire de la montaña es saludable y refrescante.
C2 adjective, adverb /ˈsaɪdlɔːŋ/

sidelong

mirada oblicua
Meaning
Directed to the side; indirect, furtive, or not straightforward.
Example
She gave him a sidelong glance across the room.
Ella le lanzó una mirada oblicua a través de la habitación.
C2 noun /səˈlɪsɪˌtuːd/

solicitude

preocupación, cuidado
Meaning
Care or concern for someone or something.
Example
His mother showed great solicitude for his safety.
Su madre mostró gran preocupación por su seguridad.
C2 noun /stɛp/

steppe

estepa
Meaning
A large flat area of unforested grassland, especially in southeastern Europe or Siberia.
Example
The nomads traveled across the vast steppe with their herds.
Los nómadas viajaban por la vasta estepa con sus rebaños.
C2 adjective /ˈspiːʃəs/

specious

falaz
Meaning
Superficially plausible but actually false; misleading in appearance.
Example
The politician’s argument was specious, sounding convincing but lacking real evidence.
El argumento del político era falaz, sonaba convincente pero carecía de pruebas reales.
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.
C2 adjective /ˈstɒlɪd/

stolid

calmo, imperturbable
Meaning
Calm, dependable, and showing little emotion or animation.
Example
Despite the chaos around him, he remained stolid and composed.
A pesar del caos a su alrededor, permaneció tranquilo y sereno.
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 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.
C2 verb /ˈskærɪfaɪ/

scarify

escarificar
Meaning
to make shallow cuts or scratches; to loosen the surface of soil
Example
The farmer scarified the soil before planting seeds.
El agricultor escarificó el suelo antes de sembrar las semillas.
C2 verb /ˈsʌbdʒʊˌɡeɪt/

subjugate

subyugar
Meaning
To bring under domination or control, especially by conquest.
Example
The empire sought to subjugate the neighboring kingdoms.
El imperio trató de subyugar a los reinos vecinos.
C2 noun /ˈseɪpiəns/

sapience

sabiduría
Meaning
Wisdom or intelligence.
Example
Her sapience in solving problems earned her the respect of her colleagues.
Su sabiduría para resolver problemas le ganó el respeto de sus colegas.
C2 noun /skɪf/

skiff

bote pequeño
Meaning
a small, light boat usually for one person
Example
The fisherman paddled his skiff across the lake.
El pescador remó su bote pequeño a través del lago.
C2 noun /ˌsɒ̃ˈfrwɑː/

sang-froid

sang-froid
Meaning
Composure or coolness, especially in difficult situations.
Example
The leader handled the crisis with remarkable sang-froid.
El líder manejó la crisis con un notable sang-froid.
C2 adjective /ˈsfɪŋks laɪk/

sphinx-like

misterioso
Meaning
Mysterious, enigmatic, or difficult to interpret
Example
Her sphinx-like smile made it hard to guess what she was thinking.
Su sonrisa de esfinge hacía que fuera difícil adivinar lo que estaba pensando.
C2 noun /ˌsɒ̃ˈfrwɑː/

sangfroid

autocontrol
Meaning
Composure or coolness under pressure.
Example
She impressed everyone with her sangfroid during the interview.
Ella impresionó a todos con su autocontrol durante la entrevista.
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.
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.
C2 noun /ˈʃaɪstər/

shyster

estafador
Meaning
a person, especially a lawyer, who uses unscrupulous or dishonest methods
Example
The businessman was exposed as a shyster who cheated clients.
El hombre de negocios fue expuesto como un estafador que engañaba a los clientes.
C2 noun /ˈskɔːrpiən fɪʃ/

Scorpion fish

pez escorpión
Meaning
a type of fish with venomous spines that belongs to the family Scorpaenidae
Example
The scorpion fish has dangerous spines that can inject venom.
El pez escorpión tiene espinas peligrosas que pueden inyectar veneno.
C2 noun /ˈsaɪ.ə.lɪz.əm/

sciolism

pretensión de conocimiento superficial
Meaning
pretentious show of superficial knowledge
Example
His speech was full of sciolism, impressing no one.
Su discurso estaba lleno de sciolismo, sin impresionar a nadie.
C2 noun /spɪˈlʌŋkər/

spelunker

espeleólogo
Meaning
A person who explores caves as a hobby.
Example
The spelunker carried ropes and lights into the dark cave.
El espeleólogo llevó cuerdas y luces a la cueva oscura.
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.
C2 adjective /sɪˈnɜːrdʒɪk/

synergic

sinérgico
Meaning
Working together in a cooperative and effective manner.
Example
The two departments have a synergic relationship that boosts productivity.
Los dos departamentos tienen una relación sinérgica que aumenta la productividad.
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 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.
C2 noun /ˈskɪnˌflɪnt/

skinflint

tacaño
Meaning
a person who spends as little money as possible; a miser
Example
The landlord was such a skinflint that he never repaired anything.
El dueño era tan tacaño que nunca reparaba nada.
C2 verb /ˈsɪn.tɪ.leɪt/

scintillate

brillar
Meaning
to sparkle or shine brightly; to emit flashes of light
Example
The diamond ring scintillated under the bright lights.
El anillo de diamantes brilló bajo las luces brillantes.
C2 adjective /ˈstraɪ.eɪ.tɪd/

striated

estriado
Meaning
marked with thin lines, grooves, or stripes
Example
The muscle fibers appeared striated under the microscope.
Las fibras musculares aparecieron estriadas bajo el microscopio.
C2 adjective /sɪˈbeɪʃəs/

sebaceous

relacionado con el sebo
Meaning
Relating to or secreting sebum, an oily substance from the skin.
Example
Acne is often caused by overactive sebaceous glands.
El acné a menudo es causado por glándulas sebáceas hiperactivas.
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.
C2 verb /slʌf/ or /sluː/

slough

desprender la piel / zona pantanosa
Meaning
To shed or cast off (like dead skin); also a swampy or muddy area.
Example
The snake sloughed off its old skin.
La serpiente se desprendió de su piel vieja.
C2 noun ˈsaɪəns ˈdezət

science-desert

desierto científico
Meaning
A region or area lacking in scientific development, research facilities, or educational institutions.
Example
J.C. Bose thrived in a science-desert.
J.C. Bose prosperó en un desierto científico.
C2 noun /ˈsɛnʃəns/

sentience

sentiencia
Meaning
The capacity to feel, perceive, or experience subjectively.
Example
Many argue that animals possess sentience.
Muchos argumentan que los animales poseen sentiencia.
C2 adjective /səˈpʌlkrəl/

sepulchral

relacionado con una tumba, sombrío
Meaning
Relating to a tomb or burial; gloomy, dismal.
Example
The abandoned house had a sepulchral silence about it.
La casa abandonada tenía un silencio sepulcral.
C2 adjective /səˈlɪsɪtəs/

solicitous

solícito
Meaning
showing concern or care for someone's health, happiness, or comfort
Example
She was always solicitous about the well-being of her students.
Ella siempre estaba solicitada por el bienestar de sus estudiantes.
C2 adjective /ˈsʌmp.tʃuˌɛr.i/

sumptuary

relacionado con las leyes que limitan el gasto personal en artículos de lujo
Meaning
Relating to laws or regulations intended to limit personal spending on luxury goods.
Example
In medieval Europe, sumptuary laws restricted the wearing of expensive fabrics to the nobility.
En la Europa medieval, las leyes suntuarias restringían el uso de telas caras solo a la nobleza.
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.
C2 noun /sɪˈmɪlɪtjuːd/

Similitude

similitud; semejanza
Meaning
the quality or state of being similar; resemblance
Example
The similitude between the two paintings suggested they were by the same artist.
La similitud entre las dos pinturas sugirió que fueron hechas por el mismo artista.
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.
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.
C2 noun /spjuːm/

spume

espuma
Meaning
Froth or foam, especially found on waves or liquids.
Example
The waves crashed against the rocks, leaving spume in the air.
Las olas chocaron contra las rocas, dejando espuma en el aire.
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.
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 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.
C2 adjective /səˈleɪʃəs/

salacious

lascivo
Meaning
Having or conveying undue or inappropriate sexual interest.
Example
The tabloid published a salacious story about the celebrity.
El tabloide publicó una historia lasciva sobre la celebridad.
C2 noun/verb /ˈsoʊdʒɜrn/

sojourn

estancia temporal
Meaning
A temporary stay at a place; to stay temporarily
Example
She enjoyed a brief sojourn in Paris during the summer.
Disfrutó de una breve estancia temporal en París durante el verano.
C2 verb /sleɪk/

slake

calmar la sed
Meaning
To satisfy thirst or desire.
Example
She drank cold water to slake her thirst.
Ella bebió agua fría para calmar su sed.
C2 adjective /ˈsloʊθfəl/

slothful

perezoso
Meaning
Lazy, idle, and unwilling to work.
Example
She was too slothful to get out of bed early.
Ella era demasiado perezosa para levantarse de la cama temprano.
C2 adjective /spɪk/

Spick

extremadamente limpio y ordenado; inmaculado
Meaning
extremely clean and neat; immaculate
Example
The house was spick and span after the cleaning.
La casa estaba completamente limpia y ordenada después de la limpieza.
C2 adjective /stɛnˈtɔːriən/

stentorian

estruendoso
Meaning
Extremely loud and powerful in sound.
Example
The teacher’s stentorian voice quieted the noisy classroom.
La voz estentórica del maestro calló el ruidoso salón de clases.
C2 noun /spliːn/

spleen

bazo; cólera
Meaning
an organ in the body that produces lymphocytes and filters blood; also refers to bad temper or spite
Example
He vented his spleen on his coworkers after the meeting.
Ventu su cólera sobre sus compañeros de trabajo después de la reunión.
C2 noun /ˌself əˈbeɪs.mənt/

self-abasement

automenos
Meaning
The act of belittling or humiliating oneself.
Example
His constant self-abasement made others uncomfortable.
Su constante automenos lo hacía sentir incómodo frente a los demás.
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 /sɪˈrɒkoʊ/

sirocco

viento cálido y seco
Meaning
A hot, dry wind blowing from North Africa across the Mediterranean to southern Europe.
Example
The sirocco made the city unbearably hot and dusty.
El siroco hizo que la ciudad se volviera insoportablemente calurosa y polvorienta.
C2 adjective /ˈsed.j ə.l ə s/

Sedulous

diligente; aplicado;
Meaning
showing dedication and diligence; persistent and careful in work
Example
She was sedulous in her research, spending hours in the library every day.
Ella fue diligente en su investigación, pasando horas en la biblioteca todos los días.