stipulate
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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.
C1 noun /ˈsʌm.ɪt əv ðə ˈfjuː.tʃər/

Summit of the Future

Cumbre del futuro
Meaning
A high-level conference focused on addressing future challenges and opportunities.
Example
The Summit of the Future addressed global challenges.
La Cumbre del Futuro abordó los desafíos globales.
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 noun /ˈsɪk.əl/

Sickle

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

superfluous

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

sorcery

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

secession

secesión
Meaning
The action of formally withdrawing from membership of a federation or body.
Example
The secession of the southern states led to the Civil War.
La secesión de los estados del sur llevó a la Guerra Civil.
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 /ˈswɪndlɚ/

swindler

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

sprightly

vivaz
Meaning
full of energy and life; lively
Example
The sprightly old man danced with joy at the wedding.
El hombre vivaz bailó con alegría en la boda.
C1 noun /swiːt.laɪm/

Sweetlime

limón dulce
Meaning
a citrus fruit that is sweeter and less acidic than regular lime
Example
The sweetlime juice was refreshing on a hot day.
El jugo de limón dulce era refrescante en un día caluroso.
C1 noun /slɪt/

Slit

rendija
Meaning
a long narrow opening or cut
Example
There was a small slit in the fabric.
Había una pequeña rendija en la tela.
C1 noun /ˌsɛlf əˌfɜːˈmeɪʃən/

self-affirmation

autoafirmación
Meaning
The practice of affirming one's own worthiness and value as an individual.
Example
Daily self-affirmation can boost your confidence.
La autoafirmación diaria puede aumentar tu confianza.
C1 noun /ˈstænzə/

stanza

estrofa
Meaning
a group of lines forming a unit in a poem or song
Example
The poem begins with a stanza describing nature.
El poema comienza con una estrofa que describe la naturaleza.
C1 noun /ˈsɔː.dʌst/

sawdust

aserrín
Meaning
The tiny particles of wood produced by sawing or sanding.
Example
The floor was covered with sawdust from the carpentry work.
El suelo estaba cubierto con aserrín del trabajo de carpintería.
C1 verb /snɪər/

sneer

sonreír de forma burlona
Meaning
to smile or speak in a mocking or contemptuous way
Example
She sneered at his attempt to sing.
Ella se burló de su intento de cantar.
C1 noun /ˈstɛə.rɪ.əʊˌtaɪ.pɪŋ/

stereotyping

estereotipar
Meaning
A widely held but fixed and oversimplified image or idea of a particular type of person or thing.
Example
Stereotyping people based on their race is harmful.
Estereotipar a las personas según su raza es perjudicial.
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.
C1 noun, adjective, verb /səˈbɔːrdənət/ (noun/adjective), /səˈbɔːrdəˌneɪt/ (verb)

subordinate

subordinado
Meaning
lower in rank or position; to treat as less important
Example
He manages ten subordinates in his department.
Él gestiona diez subordinados en su departamento.
C1 adjective /sɪˈnɒnɪməs/

synonymous

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

sucking

chupar
Meaning
Drawing in a liquid, air, or other substance through the mouth or a tube by creating a vacuum; also used figuratively for something unpleasant or ineffective
Example
The baby is sucking on a pacifier.
El bebé está chupando un chupete.
C1 noun /səˈlaɪ.və/

Saliva

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

serrated

dentado
Meaning
Having a notched or saw-toothed edge.
Example
The bread knife had a serrated blade.
El cuchillo de pan tenía una hoja dentada.
C1 noun /speɪt/

spate

oleada
Meaning
a large number of things occurring in quick succession
Example
There has been a spate of robberies in the city.
Ha habido una oleada de robos en la ciudad.
C1 verb /smɪr/

smear

untar / difamar
Meaning
to spread or apply a substance messily; to damage someone's reputation with false or unfair words
Example
The child smeared paint across the wall.
El niño untó pintura en la pared.
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 /skwɔːl/

squall

ráfaga
Meaning
a sudden violent gust of wind, often accompanied by rain, snow, or sleet
Example
A sudden squall caught the sailors off guard.
Una ráfaga repentina sorprendió a los marineros.
C1 adjective ˌsʌbˈlɪm.ɪ.nəl

subliminal

existente o que opera por debajo del umbral de conciencia, percibido o que afecta la mente de alguien sin que lo sepa
Meaning
Existing or operating below the threshold of consciousness; perceived by or affecting someone's mind without their being aware of it.
Example
Advertisements often have subliminal messages.
Los anuncios a menudo contienen mensajes subliminales.
C1 adjective /skænt/

Scant

escaso
Meaning
barely sufficient; inadequate; small in amount
Example
There was scant evidence to support his claim.
Había pocas pruebas para respaldar su afirmación.
C1 adjective /ˈʃeɪp.ləs/

Shapeless

sin forma
Meaning
having no definite or well-defined shape or form
Example
The fog created a shapeless mass in the distance.
La niebla creó una masa sin forma a lo lejos.
C1 noun /ˌsɛlfsəˈfɪʃənsi/

Self-sufficiency

autosuficiencia
Meaning
the ability to supply one's own needs without external assistance; independence
Example
The farm achieved complete self-sufficiency in food production.
La granja logró la autosuficiencia completa en la producción de alimentos.
C1 noun /ʃæk/

Shack

choza
Meaning
a small, crudely built dwelling; a poorly constructed building
Example
The fisherman lived in a small shack near the beach.
El pescador vivía en una pequeña choza cerca de la playa.
C1 verb /siːp/

seep

filtrarse lentamente
Meaning
to flow or leak slowly through small openings or pores
Example
Water began to seep through the cracks in the wall.
El agua comenzó a filtrarse a través de las grietas en la pared.
C1 noun /ˈskwɒtər/

squatter

ocupante ilegal
Meaning
a person who unlawfully occupies an uninhabited building or unused land
Example
The police removed the squatters from the abandoned house.
La policía sacó a los ocupantes ilegales de la casa abandonada.
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.
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/verb /ˈsuː.tʃər/

suture

sutura
Meaning
A stitch or row of stitches holding together the edges of a wound or surgical incision.
Example
The doctor used a suture to close the wound.
El doctor usó una sutura para cerrar la herida.
C1 adjective /sɪˈmɛtrɪkəl/

symmetrical

simétrico
Meaning
having parts on either side that match or are the same in shape, size, or arrangement
Example
The artist designed a symmetrical pattern on the floor.
El artista diseñó un patrón simétrico en el suelo.
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 noun /ˈstɪmjʊlənt/

stimulant

estimulante
Meaning
A substance that raises levels of physiological or nervous activity in the body.
Example
Coffee is a common stimulant that helps people stay awake.
El café es un estimulante común que ayuda a las personas a mantenerse despiertas
C1 adjective /ˈsʌn.dri/

sundry

diverso
Meaning
Various or miscellaneous.
Example
The shop sells fruits, clothes, and sundry items.
La tienda vende frutas, ropa y varios artículos.
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 /ˈswɪndl/

swindle

estafar
Meaning
to cheat someone out of money or possessions by deceit
Example
The con artist tried to swindle the old man out of his savings.
El artista del engaño intentó estafar al anciano para quitarle sus ahorros.
C1 noun /ˌsɪmbɪˈəʊsɪs/

symbiosis

relación simbiótica
Meaning
A mutually beneficial relationship between different people or groups.
Example
The symbiosis between the two companies led to mutual growth.
La simbiosis entre las dos empresas llevó a un crecimiento mutuo.
C1 noun /səˈsteɪnəbl ˈæɡrɪkʌltʃər/

sustainable agriculture

agricultura sostenible
Meaning
Farming practices that meet current food needs while preserving environmental resources and maintaining the ability to produce food for future generations through ecologically sound methods.
Example
Sustainable agriculture practices protect the environment while ensuring food security.
Las prácticas de agricultura sostenible protegen el medio ambiente mientras garantizan la seguridad alimentaria.
C1 noun /səˈlɪləkwi/

soliloquy

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

Supersonic

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

stifled

sofocar
Meaning
to suppress, hold back, or prevent something from happening
Example
He stifled a laugh during the serious meeting.
Él sofocó una risa durante la reunión seria.
C1 verb /ˈsætəˌraɪz/

satirize

satirizar
Meaning
to mock or criticize something using satire
Example
The play satirizes the greed of modern corporations.
La obra satiriza la codicia de las corporaciones modernas.
C1 verb /sluː/

slew

girar bruscamente
Meaning
To turn or slide violently in a particular direction.
Example
The car slewed across the icy road.
El coche se deslizó por la carretera helada.
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 verb /səbˈvɜːrt/

subvert

subvertir
Meaning
to undermine or overthrow an established system, authority, or institution
Example
The rebels tried to subvert the government.
Los rebeldes intentaron subvertir el gobierno.
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 /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 /ˈskævɪndʒ/

scavenge

buscar entre la basura
Meaning
to search through waste or discarded material to find useful items
Example
The children scavenged for food in the garbage dump.
Los niños scavengaron para encontrar comida en el basurero.
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 adjective /sɪmˈplɪstɪk/

simplistic

excesivamente simplificado
Meaning
treating complex issues as if they were much simpler than they really are
Example
His explanation was too simplistic and ignored key details.
Su explicación fue demasiado simplificada e ignoró detalles clave.
C1 verb /stoʊk/

stoke

avivar el fuego; fomentar o aumentar un sentimiento o actividad fuerte
Meaning
To add fuel to a fire; to encourage or increase a strong feeling or activity.
Example
The politician’s speech stoked anger among the crowd.
El discurso del político encendió la ira entre la multitud.
C1 verb /strʌt/

strut

caminar con arrogancia
Meaning
to walk with a stiff, proud, and confident gait, often to show off
Example
He strutted across the stage after winning the award.
Él caminó por el escenario después de ganar el premio.
C1 adjective /ˈspjʊəriəs/

spurious

falso / fraudulento
Meaning
Not genuine, authentic, or true; false or fake.
Example
The report was based on spurious claims.
El informe se basó en afirmaciones falsas.
C1 noun /səˈlɪn.ə.t̬i/

salinity

salinidad, concentración de sal
Meaning
The salt content of soil or water, typically measured as a concentration.
Example
The salinity of the ocean varies depending on depth and location.
La salinidad del océano varía dependiendo de la profundidad y la ubicación.
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.
C1 noun /ˈskaʊndrəl/

scoundrel

canalla
Meaning
a dishonest or unscrupulous person; a villain
Example
That scoundrel cheated the old man out of his savings.
Ese canalla engañó al anciano y le robó sus ahorros.
C1 noun /streɪt/

strait

estrecho
Meaning
A narrow passage of water connecting two seas or two large areas of water.
Example
The Strait of Gibraltar connects the Atlantic Ocean and the Mediterranean Sea.
El estrecho de Gibraltar conecta el océano Atlántico y el mar Mediterráneo.
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 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.
C1 verb /sɪˈkluːd/

seclude

aislar
Meaning
To keep someone away from other people; to isolate.
Example
The monk chose to seclude himself in the mountains.
El monje eligió aislarse en las montañas.
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 /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 /ˈsɪnjuəs/

sinuous

sinuoso
Meaning
Having many curves, bends, or turns; winding.
Example
The hikers followed a sinuous path through the forest.
Los excursionistas siguieron un camino sinuoso a través del bosque.
C1 noun /sɪv/

sieve

colador
Meaning
a utensil with a mesh or perforated bottom, used for straining or sifting
Example
She used a sieve to strain the pasta.
Ella usó un colador para colar la pasta.
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 adjective /stjuːˈpɛndəs/

stupendous

asombroso
Meaning
extremely impressive; amazing in size, degree, or excellence
Example
The magician’s performance was simply stupendous.
La actuación del mago fue simplemente asombrosa.
C1 verb /skʌf/

scuff

rasguñar
Meaning
to mark or scratch the surface of something by rubbing
Example
He scuffed his shoes on the pavement.
Él rasguñó sus zapatos en la acera.
C1 noun /sʌˈmeɪʃən/

summation

suma, resumen
Meaning
The process of adding things together; a summary of points.
Example
The lawyer gave a powerful summation of the case.
El abogado dio un poderoso resumen del caso.
C1 adjective /ˈstrɛnjuəs/

strenuous

arduo
Meaning
Requiring or using great effort and energy.
Example
Climbing the mountain was a strenuous task.
Escalar la montaña fue una tarea ardua.
C1 noun, verb /slɜːr/

slur

insulto / palabra despectiva
Meaning
An insulting remark or suggestion; or to speak indistinctly.
Example
He made a slur against her character.
Hizo un comentario despectivo sobre su carácter.
C1 verb /ˈsɪn.θə.saɪz/

synthesize

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

septic

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

synergistic

sinérgico
Meaning
Relating to the interaction of elements that when combined produce a greater effect than the sum of their individual effects.
Example
A synergistic effect occurs when nutrients work together.
Un efecto sinérgico ocurre cuando los nutrientes trabajan juntos.
C1 noun /səˈbraɪəti/

sobriety

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

synergy

sinergia, cooperación
Meaning
The interaction or cooperation of two or more organizations, substances, or other agents to produce a combined effect greater than the sum of their separate effects.
Example
The synergy between the two companies led to a successful partnership.
La sinergia entre las dos empresas condujo a una exitosa asociación.
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 noun /ˈsæl.mən fɪʃ / ˈroʊ.huː/

Salmon fish / Rohu

pescado Rohu
Meaning
a freshwater fish popular in South Asian cuisine; also refers to salmon which is a different species
Example
Rohu fish is commonly prepared with spices in Bengali households.
El pescado Rohu se prepara comúnmente con especias en los hogares bengalíes.
C1 adjective /sər'pæs.ɪŋ/

Surpassing

sobresaliente; superior; extraordinario
Meaning
exceeding; going beyond; outstanding
Example
Her surpassing beauty made everyone stop and stare.
Su belleza sobresaliente hizo que todos se detuvieran y la miraran.
C1 noun ˈsʌb.tɛkst

subtext

subtexto
Meaning
Hidden meaning or message behind spoken or written words
Example
The subtext of his speech suggested disagreement.
El subtexto de su discurso sugirió desacuerdo.
C1 adjective /ˈsɛnʃənt/

sentient

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

succinct

conciso
Meaning
Briefly and clearly expressed; characterized by clear, precise expression in few words.
Example
His speech was succinct and impactful.
Su discurso fue conciso e impactante.
C1 noun /ˈsʌtlti/

subtlety

sutileza
Meaning
The quality or state of being subtle.
Example
She understood the subtlety of the situation.
Ella entendió la sutileza de la situación.
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 noun /ˈskruːpəl/

scruple

escrúpulo
Meaning
A moral or ethical consideration that restrains actions.
Example
He had no scruples about lying to get ahead.
Él no tenía escrúpulos para mentir y avanzar.
C1 adjective /ˈsɔːrdɪd/

sordid

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

sadistic

sádico
Meaning
Deriving pleasure from inflicting pain or suffering on others.
Example
The villain had a sadistic smile while hurting his enemies.
El villano tenía una sonrisa sádica mientras lastimaba a sus enemigos.
C1 noun /ˈstɪklər/

stickler

persona estricta con las normas
Meaning
a person who insists on a certain quality or standard of behavior
Example
He is a stickler for punctuality and never tolerates delays.
Él es muy estricto con la puntualidad y no tolera retrasos.
C1 noun /ˈsəʊdiəm/

sodium

sodio
Meaning
a soft, silver-white chemical element that is highly reactive and found in salt.
Example
Sodium is an essential element for maintaining fluid balance in the body.
El sodio es un elemento esencial para mantener el equilibrio de líquidos en el cuerpo.
C1 adjective /ˌsɛrənˈdɪpɪtəs/

serendipitous

afortunado inesperado
Meaning
Occurring or discovered by chance in a happy or beneficial way.
Example
Their meeting at the café was purely serendipitous.
Su encuentro en el café fue completamente afortunado.
C1 adjective /ˈsɜːrli/

surly

gruñón
Meaning
bad-tempered and unfriendly
Example
The waiter gave us a surly look when we asked for more water.
El camarero nos miró de forma gruñona cuando pedimos más agua.
C1 verb, noun /sæp/

sap

savia / agotar
Meaning
As a noun: the vital fluid in plants; As a verb: to gradually weaken or drain strength.
Example
The long journey began to sap his energy.
El largo viaje comenzó a agotar su energía.
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 noun /sɪˈnɪləti/

senility

senilidad
Meaning
The state of being old and showing the weaknesses of age, especially mental decline.
Example
His forgetfulness was attributed to senility.
Su olvido fue atribuido a la senilidad.
C1 noun /ˈstændˌstɪl/

standstill

paro
Meaning
a situation in which all movement or activity stops
Example
The traffic came to a standstill after the accident.
El tráfico llegó a un paro después del accidente.
C1 adjective /ˈspɛktrəl/

spectral

espectral
Meaning
Relating to a ghost or specter; ghostly. Also relating to a spectrum.
Example
The old mansion had a spectral atmosphere at night.
La vieja mansión tenía una atmósfera espectral por la noche.
C1 verb /ʃɜːrk/

shirk

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

sinus

seno
Meaning
A cavity within a bone or tissue, especially those in the bones of the face connected with the nasal cavities.
Example
He suffered from a sinus infection that caused headaches.
Él sufrió de una infección sinusal que le causó dolor de cabeza.
C1 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 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 /ˈsɛn.sər.i/

sensory

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