storage
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B2 noun /ˈstɔːrɪdʒ/

storage

almacenamiento
Meaning
the action or method of storing something for future use
Example
The warehouse offers plenty of storage space.
El almacén ofrece mucho espacio de almacenamiento.
B2 verb /ʃrɪŋk/

shrink

encoger
Meaning
to become smaller in size; to draw back in fear
Example
The sweater shrank after washing in hot water.
El suéter se encogió después de lavar en agua caliente.
C1 verb /ˈsælvɪdʒ/

salvage

salvar
Meaning
To save something from loss, damage, or destruction.
Example
They managed to salvage some goods from the fire.
Lograron salvar algunos bienes del incendio.
B1 noun /ˈsɜːvənt/

servant

sirviente
Meaning
a person who performs duties for others, especially in a household
Example
The servant opened the door for the guests.
El sirviente abrió la puerta para los invitados.
C2 adjective /splɪˈnɛtɪk/

splenetic

irritable, malhumorado
Meaning
bad-tempered, irritable, spiteful
Example
His splenetic remarks offended everyone in the room.
Sus comentarios iracundos ofendieron a todos en la sala.
B2 adjective ˈsiːm.ləs

seamless

sin interrupciones
Meaning
A process or service that works without any interruption.
Example
A seamless checkout process improves user satisfaction.
Un proceso de pago sin interrupciones mejora la satisfacción del usuario.
C1 noun/adjective /ˈstɜː.lɪŋ/

sterling

moneda británica / excelente
Meaning
British money, especially pounds; of excellent quality.
Example
She was praised for her sterling work on the project.
Fue elogiada por su excelente trabajo en el proyecto.
B2 noun /ˈsæksəfoʊn/

Saxophone

saxofón
Meaning
a wind musical instrument with a curved metal body and a single reed mouthpiece
Example
The jazz musician played a beautiful solo on his saxophone.
El músico de jazz tocó un hermoso solo en su saxofón.
B2 noun /ˌsɛlf ɪˈstiːm/

self-esteem

autoestima
Meaning
confidence in one's own worth or abilities; self-respect
Example
Building self-esteem takes time and consistent effort.
Construir la autoestima requiere tiempo y esfuerzo constante.
C1 noun ˈsʌfrɪdʒ

suffrage

sufragio
Meaning
The right to vote in political elections; the principle of political representation.
Example
Universal suffrage was a key demand.
El sufragio universal fue una demanda clave.
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 adjective /ʃruːd/

Shrewd

astuto; inteligente; perspicaz
Meaning
having or showing sharp powers of judgment; astute
Example
The shrewd businessman made a profitable deal in the competitive market.
El astuto hombre de negocios hizo un trato rentable en el mercado competitivo.
B1 verb/adjective /sɪˈkjʊər/

secure

asegurar
Meaning
to make safe or protect; to fix something firmly in place
Example
Please secure the door before you leave.
Por favor asegura la puerta antes de irte.
C1 noun ˌsteɪbəlaɪˈzeɪʃən

stabilization

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

spruce

arreglar / un tipo de árbol
Meaning
to make neat or tidy in appearance; also refers to an evergreen tree
Example
He spruced up his room before the guests arrived.
Él arregló su habitación antes de que llegaran los invitados.
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.
C1 adjective /ˈstɛr.aɪl/

sterile

estéril
Meaning
Free from bacteria or other living microorganisms; incapable of producing offspring.
Example
The surgeon worked in a sterile environment to avoid infection.
El cirujano trabajó en un ambiente estéril para evitar infecciones.
B1 noun /stoʊv/

Stove

estufa
Meaning
a kitchen appliance used for cooking food by applying heat
Example
She cooked dinner on the gas stove.
Cocinó la cena en la estufa de gas.
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 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.
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.
A2 noun steɪt

state

estado
Meaning
A nation or territory considered as an organized political community under one government.
Example
The state declared a new language policy.
El estado declaró una nueva política lingüística.
C2 noun (plural, informal) /skædz/

scads

montones
Meaning
A large number or quantity of something (informal).
Example
She has scads of friends in the city.
Ella tiene montones de amigos en la ciudad.
C2 noun /səˈnɛs.əns/

senescence

envejecimiento
Meaning
The process of growing old or the condition of aging.
Example
The biologist studied senescence in plants to understand aging.
El biólogo estudió la senescencia en las plantas para entender el envejecimiento.
B1 noun ˈsɛʃənz

sessions

sesiones, reuniones, período
Meaning
A meeting of an official body, especially a court of law, to conduct its business; a period devoted to a particular activity.
Example
The sessions lasted for three hours.
Las sesiones duraron tres horas.
B2 noun /səbˈmɪʃən/

submission

rendición, presentación
Meaning
the act of yielding to authority or presenting something for consideration
Example
Her submission of the report was appreciated by the manager.
Su presentación del informe fue apreciada por el gerente.
B2 noun /ˈsiːkər/

seeker

buscador
Meaning
a person who is looking for something, especially knowledge or truth
Example
The seeker traveled far to find the answers to his questions.
El buscador viajó lejos para encontrar las respuestas a sus preguntas.
C1 noun /ˈsuːtər/

suitor

pretendiente
Meaning
a man who pursues a relationship with a woman, often with the intent to marry
Example
She had many suitors vying for her attention.
Ella tenía muchos pretendientes compitiendo por su atención.
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.
A1 verb /ˈstʌdi/

study

estudiar
Meaning
to learn about something; to examine carefully; to research
Example
I study mathematics every evening.
Yo estudio matemáticas todas las tardes.
B2 verb /sɪp/

sip

sorber
Meaning
to drink in small quantities; to taste carefully
Example
She sipped her tea slowly while reading the newspaper.
Ella bebió su té lentamente mientras leía el periódico.
C1 noun /siˈɛrə klʌb/

Sierra Club

Sierra Club
Meaning
An American environmental organization founded in 1892 by John Muir, focused on promoting conservation of the natural environment by influencing public policy decisions.
Example
John Muir founded the Sierra Club in 1892 to protect wild areas.
John Muir fundó el Sierra Club en 1892 para proteger áreas salvajes.
B1 noun /slaɪd/

Slide

tobogán
Meaning
a smooth surface for sliding down; a piece of playground equipment
Example
The children enjoyed playing on the slide at the park.
Los niños disfrutaron jugando en el tobogán en el parque.
C2 adjective /ˈsæŋɡwɪˌnɛri/

sanguinary

sangriento
Meaning
Involving or causing much bloodshed; bloodthirsty.
Example
The battle was one of the most sanguinary conflicts of the war.
La batalla fue uno de los conflictos más sangrientos de la guerra.
C1 noun /ˌsɛrənˈdɪpɪti/

serendipity

serendipia
Meaning
The occurrence of events by chance in a happy or beneficial way.
Example
Finding that old photo album was pure serendipity.
Encontrar ese viejo álbum de fotos fue pura serendipia.
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.
B1 verb /swɪtʃ/

switch

cambiar
Meaning
to change from one thing to another; to exchange or replace
Example
I switched from coffee to tea.
Cambié de café a té.
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.
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.
A2 adjective /ˈselfɪʃ/

Selfish

egoísta
Meaning
caring only about oneself rather than others
Example
He was too selfish to share his food with others.
Él era demasiado egoísta para compartir su comida con los demás.
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.
A1 noun /sʌn/

Sun

sol
Meaning
the star around which the earth orbits; the source of light and heat for planets
Example
The sun rises in the east and sets in the west.
El sol sale por el este y se pone por el oeste.
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 noun ˈsʌbstɪˌtut

substitute

sustituto
Meaning
A person or thing acting or serving in place of another.
Example
Money cannot be a substitute for genuine happiness.
El dinero no puede ser un sustituto de la verdadera felicidad.
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.
A1 adjective /ʃɔːrt/

Short

corto; breve
Meaning
having a small length, height, or duration; not long
Example
The meeting was very short, lasting only ten minutes.
La reunión fue muy corta, duró solo diez minutos.
B2 adjective /slæk/

slack

flojo
Meaning
not tight, firm, or busy; lacking tension or activity
Example
Business is slack during the rainy season.
El negocio está flojo durante la temporada de lluvias.
B2 adjective /suːˈpɜːrb/

superb

excelente
Meaning
extremely good; excellent
Example
The hotel provided superb service during our stay.
El hotel proporcionó un servicio excelente durante nuestra estancia.
C1 noun, adjective /ˈsɒlvənt/

solvent

disolvente, capaz de pagar deudas
Meaning
a liquid that dissolves other substances; also means able to pay debts
Example
Acetone is a common solvent used in laboratories.
El acetona es un disolvente común usado en laboratorios.
C1 adjective /stiːpt/

steeped

empapado
Meaning
Completely surrounded by or filled with a particular quality, influence, or experience.
Example
The town is steeped in history and tradition.
La ciudad está empapada en historia y tradición.
C2 adjective /ˌsɒpəˈrɪfɪk/

soporific

felicidad
Meaning
tending to induce drowsiness or sleep; causing sleepiness
Example
The professor's lecture was so soporific that half the class fell asleep.
Ella no podía esconder su felicidad cuando recibió el premio.
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.
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.
A1 verb /seɪ/

say

decir
Meaning
to speak words; to express something in words
Example
She said hello to me.
Ella me dijo hola.
B2 adjective /ˌsɪstəˈmætɪk/

systematic

sistemático
Meaning
Done or acting according to a fixed plan or system; methodical.
Example
The company took a systematic approach to solving the issue.
La empresa adoptó un enfoque sistemático para resolver el problema.
B1 noun /ˈseɪ.vɪŋz/

savings

ahorros
Meaning
Money that is saved, especially in a bank or official scheme for future use.
Example
Many people invest their savings in real estate.
Muchas personas invierten sus ahorros en bienes raíces.
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.
C2 noun /ˌsɪnjuˈɒsɪti/

sinuosity

sinuosidad
Meaning
The quality or state of being winding, curving, or having many turns.
Example
The sinuosity of the river made navigation challenging.
La sinuosidad del río hizo que la navegación fuera desafiante.
C1 noun /sɪˈkriː.ʃən/

Secretion

secreción
Meaning
a process by which substances are produced and discharged from a cell or gland
Example
Insulin secretion is crucial for blood sugar regulation.
La secreción de insulina es crucial para la regulación del azúcar en sangre.
B2 noun /ˈsmɑːrt.nəs/

Smartness

inteligencia; astucia; apariencia ordenada y moderna
Meaning
intelligence; cleverness; neat and fashionable appearance
Example
Her smartness in solving problems impressed everyone.
Su inteligencia al resolver problemas impresionó a todos.
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.
B1 noun /ˈspæroʊ/

Sparrow

gorrión
Meaning
small brown and grey bird commonly found in cities and towns
Example
The sparrow chirped cheerfully from the tree branch.
El gorrión cantó alegremente desde la rama del árbol.
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.
B2 verb /səˈsteɪn/

sustain

mantener
Meaning
To support, maintain, or keep something going over time.
Example
The team worked hard to sustain their success.
El equipo trabajó arduamente para mantener su éxito.
B1 noun /səˈpɔːtər/

supporter

partidario
Meaning
a person who supports someone or something
Example
She is a strong supporter of the local animal shelter.
Ella es una gran partidaria del refugio local de animales.
B1 noun /ˌsæt.ɪsˈfæk.ʃən/

Satisfaction

satisfacción
Meaning
fulfillment of one's wishes, expectations, or needs
Example
She felt great satisfaction after completing the project.
Ella sintió una gran satisfacción después de completar el proyecto.
B2 noun /ˈstiː.mər/

Steamer

vapor
Meaning
a ship or boat powered by steam engines
Example
The old steamer crossed the river slowly.
El viejo vapor cruzó el río lentamente.
B1 noun /ˈsʌn.raɪz/

Sunrise

amanecer
Meaning
the time in the morning when the sun appears above the horizon
Example
We watched the beautiful sunrise from the mountain top.
Vimos el hermoso amanecer desde la cima de la montaña.
C1 adjective /ˈsiː.naɪl/

senile

debilidad relacionada con la vejez
Meaning
Showing the weaknesses of old age, especially mental decline.
Example
The old man became senile and forgot familiar faces.
El hombre viejo se volvió senil y olvidó rostros familiares.
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.
B2 adjective /ˈʃɒkɪŋ/

shocking

sorprendente
Meaning
causing surprise or disbelief; startling
Example
The news of the accident was shocking to everyone.
La noticia del accidente fue sorprendente para todos.
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 /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.
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.
B1 noun /swɒn/

Swan

cisne
Meaning
a large waterbird with a long curved neck and usually white plumage
Example
The elegant swan glided silently across the water.
El elegante cisne se deslizó silenciosamente sobre el agua.
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 /skʌlpt/

sculpt

felicidad
Meaning
to create or shape something by carving or molding
Example
The artist sculpted a beautiful statue from marble.
Ella no pudo ocultar su felicidad cuando recibió el premio.
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.
B2 adjective /saʊər/

Sour

ácido
Meaning
having an acid taste like lemon or vinegar; unpleasant or disagreeable
Example
The milk has gone sour and smells terrible.
La leche se ha agrido y huele terrible.
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 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.
B2 noun sɔɪl ɪˈrəʊʒən

soil erosion

erosión del suelo
Meaning
The wearing away of topsoil by water, wind, or other natural forces.
Example
Soil erosion can lead to the loss of fertile land.
La erosión del suelo puede llevar a la pérdida de tierras fértiles.
B2 adjective /ˈʃeɪ.ki/

Shaky

inestable; tembloroso; poco fiable; débil
Meaning
unstable; trembling; unreliable; weak
Example
His voice was shaky with nervousness.
Su voz estaba temblorosa por los nervios.
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.
C1 adjective /ˈspaɪn.ləs/

Spineless

sin coraje; débil de voluntad; cobarde
Meaning
lacking courage or determination; weak-willed
Example
He was too spineless to stand up for his beliefs.
Él fue demasiado sin columna vertebral para defender sus creencias.
A2 adjective /skɛrd/

scared

asustado
Meaning
feeling afraid or worried
Example
She was scared of the dark.
Ella tenía miedo de la oscuridad.
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.
B1 noun /ˈsʌməri/

summary

resumen
Meaning
A brief statement of the main points of something.
Example
She wrote a summary of the book for her class.
Ella escribió un resumen del libro para su clase.
B2 verb /slæp/

slap

abofetear
Meaning
to hit someone quickly with the flat part of the hand; to strike sharply
Example
She was so angry that she slapped him across the face.
Ella estaba tan enojada que lo abofeteó en la cara.
B2 adjective /ˈsɛksi/

sexy

atractivo
Meaning
sexually attractive or exciting
Example
She wore a sexy red dress to the party.
Ella llevaba un vestido rojo atractivo en la fiesta.
B2 verb /ˈstreɪtən/

straighten

alisar
Meaning
to make something straight or tidy; to correct or organize
Example
She straightened her hair before the meeting.
Ella se alisó el cabello antes de la reunión.
C1 adjective /skəˈlæstɪk/

scholastic

escolar
Meaning
Relating to schools, education, or academic learning.
Example
The school organizes scholastic competitions every year.
La escuela organiza competencias escolares cada año.
C1 /skwɒt/

squat

agacharse
Meaning
to crouch or sit with knees bent and body close to the ground
Example
He squatted down to tie his shoes.
Se agachó para atarse los zapatos.
C1 noun /stɛlθ/

stealth

sigilo, moverse en secreto
Meaning
The act of moving, doing, or achieving something quietly and secretly.
Example
The cat moved with stealth towards its prey.
El gato se movió sigilosamente hacia su presa.
B2 noun /ˌsɛlf rɪˈspɛkt/

self-respect

autoestima
Meaning
A feeling of pride and confidence in oneself; self-worth.
Example
She refused to compromise her self-respect by accepting unfair treatment.
Ella se negó a comprometer su autoestima aceptando un trato injusto.
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.
B2 adjective /ˈsɜːdʒɪkəl/

surgical

relacionado con cirugía
Meaning
relating to or involving surgery
Example
She underwent surgical treatment to repair the damage.
Se sometió a tratamiento quirúrgico para reparar el daño.
C1 noun, verb /strænd/

strand

hilo / varado
Meaning
Noun: A single thin length of thread, wire, or similar. Verb: To leave someone or something without a way of moving or leaving.
Example
The storm stranded many tourists on the island.
La tormenta dejó a muchos turistas varados en la isla.
A2 adjective /skaɪ bluː/

Sky-blue

azul cielo
Meaning
a bright blue color like that of a clear sky
Example
Her sky-blue eyes sparkled in the sunlight.
Sus ojos azul cielo brillaban a la luz del sol.
C1 adjective /ˈsaɪt.ləs/

Sightless

ciego; sin visión
Meaning
unable to see; blind; lacking vision
Example
The sightless man navigated the street with his guide dog.
El hombre ciego navegó por la calle con su perro guía.
C2 verb /stɑːntʃ/

stanch

detener el flujo de sangre
Meaning
to stop the flow of blood or liquid from a wound or source
Example
The nurse quickly stanched the bleeding from the cut.
la enfermera rápidamente detuvo el sangrado de la herida.
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.
C2 adjective /ˈʃɑːpwɔːrn/

shopworn

gastado / viejo
Meaning
worn or faded from being displayed in a shop; no longer fresh or original
Example
The shopworn shoes were sold at a discount.
Los zapatos shopworn se vendieron con descuento.
A2 adverb /ˈsloʊli/

slowly

lentamente
Meaning
in a slow manner
Example
She walked slowly to the door.
Ella caminó lentamente hacia la puerta.
B2 noun səˌsteɪ.nəˈbɪl.ɪ.ti

sustainability

sostenibilidad
Meaning
The ability to be maintained at a certain rate or level; the avoidance of the depletion of natural resources in order to maintain ecological balance.
Example
Sustainability ensures long-term environmental health.
La sostenibilidad garantiza la salud ambiental a largo plazo.
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.
B2 noun ˈskruːtɪni

scrutiny

examen minucioso
Meaning
Critical observation or examination
Example
The new law is under scrutiny by the legislative body.
La nueva ley está bajo examen minucioso por el cuerpo legislativo.
C2 noun /ˈskɪz.əm/ or /ˈsɪz.əm/

schism

felicidad
Meaning
A division or split between strongly opposed parties, often in religion or organizations.
Example
The schism in the church led to the formation of two separate groups.
Ella no pudo ocultar su felicidad cuando recibió el premio.
B2 verb səˈpres

suppress

reprimir
Meaning
To forcibly put an end to; to restrain or subdue.
Example
Authorities must suppress criminal activities in campuses.
Las autoridades deben reprimir las actividades criminales en los campus.
B2 noun /sliːv/

Sleeve

manga
Meaning
the part of a garment that covers the arm
Example
She rolled up her sleeves before starting to cook.
Ella subió las mangas antes de empezar a cocinar.
C1 verb /ʃʌnt/

shunt

desviar
Meaning
to move or turn aside; to push or divert from one track to another
Example
The train was shunted onto a different track.
El tren fue desviado a otra vía.
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.
B2 verb /ˈsɪmbəlaɪz/

symbolize

simbolizar
Meaning
to represent or stand for something else
Example
The dove symbolizes peace across cultures.
La paloma simboliza la paz a través de las culturas.
C2 noun/verb /sluːs/

sluice

compuerta de agua / enjuagar
Meaning
A sliding gate for controlling the flow of water; to wash or rinse with water in large quantities.
Example
The workers sluiced the mud off the street after the heavy rain.
Los trabajadores limpiaron el barro de la calle después de la fuerte lluvia.
C2 adjective /sʌbˈlɪŋɡwəl/

sublingual

sublingual
Meaning
situated or applied under the tongue
Example
The doctor prescribed a sublingual tablet for faster absorption.
El doctor recetó una tableta sublingual para una absorción más rápida.
A2 noun /sɜːr/

sir

señor
Meaning
a respectful or formal form of address used for a man, typically one of higher social status or authority
Example
Sir, may I assist you with your order?
Señor, ¿puedo asistirle con su pedido?
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?
A1 verb /sɪŋ/

sing

cantar
Meaning
to make musical sounds with the voice
Example
She sings beautifully in the choir.
ella canta bellamente en el coro
B2 noun /ˈsɛtlər/

settler

colono
Meaning
a person who settles in a new area or land
Example
The settlers arrived in the new town and started building homes.
Los colonos llegaron a la nueva ciudad y comenzaron a construir casas.
C1 noun ˈsɒv.rɪn.ti

sovereignty

soberanía
Meaning
The authority of a state to govern itself or another state; supreme power or authority.
Example
Sovereignty is essential for a nation's identity.
La soberanía es esencial para la identidad de una nación.
A2 adverb /ˈstrɒŋɡli/

strongly

fuerte
Meaning
in a strong manner or to a great extent
Example
She strongly believes in the power of positive thinking.
Ella cree firmemente en el poder del pensamiento positivo.