strenuous
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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 verb /ˈswɛltər/

swelter

sufrir por calor intenso
Meaning
to suffer from intense heat
Example
We began to swelter in the midday sun.
Empezamos a sudar bajo el sol del mediodía.
B1 verb /stæmp/

stamp

estampar / pisotear
Meaning
To bring down (one's foot) heavily on the ground; to imprint a mark or seal.
Example
She stamped her foot in frustration.
Ella estampó su pie por frustración.
C2 adjective /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.
B2 noun /səˈspɪʃən/

Suspicion

sospecha
Meaning
a feeling or thought that someone is guilty of an illegal or dishonest activity
Example
The police arrested him on suspicion of theft.
La policía lo arrestó por sospecha de robo.
C1 noun /strəˈtiː.dʒɪk ˈɪn.saɪts/

strategic insights

perspectivas estratégicas
Meaning
Deep understanding and wisdom gained through careful analysis for planning purposes.
Example
Strategic insights guide policymaking.
Las perspectivas estratégicas guían la toma de decisiones políticas.
C1 verb /ˈskwɒbəl/

squabble

discutir ruidosamente sobre algo sin importancia
Meaning
To argue noisily over something small or unimportant.
Example
The children squabbled over the last piece of cake.
Los niños discutían por el último trozo de pastel.
A1 verb /sɪt/

sit

sentarse
Meaning
to rest in a seated position; to be located
Example
Please sit down and make yourself comfortable.
Por favor, siéntate y hazte cómodo.
A2 noun /sænd/

sand

felicidad
Meaning
Small loose grains of crushed rock, found on beaches and deserts.
Example
Children built castles out of sand on the beach.
Ella no podía esconder 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.
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 noun /ˌsəʊ.ʃi.əʊˈek.ə.nɒm.ɪk ˈprɒɡ.res/

socioeconomic progress

progreso socioeconómico
Meaning
Advancement in both social and economic conditions of a society or community.
Example
Socioeconomic progress uplifts marginalized communities.
El progreso socioeconómico eleva a las comunidades marginadas.
C1 noun /ˌsɑːrdʒənt ˈmeɪdʒər/

sergeant-major

sargento-mayor
Meaning
A senior non-commissioned officer in the army responsible for discipline and administration within a unit.
Example
The sergeant-major inspected the troops before the parade.
El sargento-mayor inspeccionó a las tropas antes del desfile.
B2 adverb /ˈsoʊʃəli/

socially

socialmente
Meaning
in a way that relates to society or social interaction
Example
He is very active socially and attends many events.
Él es muy activo socialmente y asiste a muchos eventos.
C1 verb /skwɪnt/

squint

entrecerrar los ojos
Meaning
to look with partly closed eyes
Example
She squinted at the bright sunlight.
Ella entrecerró los ojos por la luz brillante del sol.
B1 noun /ˈsʌp.ər/

Supper

cena
Meaning
an evening meal, typically a light or informal one
Example
We usually have supper around seven o'clock.
Normalmente cenamos alrededor de las siete en punto.
A2 proper noun /ˌsaʊθ əˈmɛrɪkə/

south america

América del Sur
Meaning
a continent located in the Western Hemisphere, mostly in the Southern Hemisphere
Example
Brazil is the largest country in South America.
Brasil es el país más grande de América del Sur.
B2 verb /sɑːb/

sob

sollozar ruidosamente
Meaning
to cry noisily while taking short breaths
Example
She began to sob uncontrollably after hearing the news.
Ella comenzó a sollozar incontrolablemente después de escuchar la noticia.
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.
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.
B2 verb /ˈʃætər/

shatter

romper
Meaning
To break suddenly into many small pieces.
Example
The glass will shatter if you drop it.
El vidrio se romperá si lo dejas caer.
B2 noun /spaɪn/

Spine

columna vertebral; soporte central de una estructura
Meaning
the backbone or vertebral column of a vertebrate; the central support of a structure
Example
She injured her spine in the accident.
Ella se lesionó la columna vertebral en el accidente.
C1 verb /ˈstɪntɪŋ/

stinting

dar con tacañería
Meaning
to supply sparingly or with restrictions
Example
He never stinting his efforts to help the poor.
Él nunca escatima esfuerzos para ayudar a los pobres.
B2 noun /ˈʃʌtəl/

shuttle

vehículo que viaja regularmente entre dos lugares
Meaning
a vehicle or craft that travels regularly between two places.
Example
The airport shuttle runs every 30 minutes.
El servicio de transporte del aeropuerto circula cada 30 minutos.
A2 noun /spɒt/

spot

lugar
Meaning
a particular place or position
Example
I found a great spot for a picnic in the park.
Encontré un gran lugar para hacer un picnic en el parque.
A1 noun /snoʊ/

Snow

felicidad
Meaning
white frozen water that falls from clouds as soft flakes
Example
The children played happily in the fresh snow.
Ella no pudo ocultar su felicidad cuando recibió el premio.
B2 adverb /ˈsʌbsɪkwəntli/

subsequently

posteriormente
Meaning
at a later time; afterward
Example
He failed his exam and subsequently had to retake it.
Él reprobó su examen y posteriormente tuvo que repetirlo.
A2 noun /stʌf/

stuff

cosas
Meaning
a collection of things or materials, typically unspecified or uncountable
Example
She packed all her stuff into the suitcase.
Ella empacó todas sus cosas en la maleta.
B1 verb /splɪt/

split

dividir
Meaning
to divide or separate into parts or groups
Example
He split the log in two with an axe.
Él dividió el tronco en dos con un hacha.
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.
B2 noun /ˈskʌlp.tər/

Sculptor

escultor
Meaning
an artist who creates sculptures by carving, modeling, or shaping materials
Example
The sculptor spent months creating a beautiful marble statue.
El escultor pasó meses creando una hermosa estatua de mármol.
B1 noun /ˈsʌb.stəns/

Substance

sustancia
Meaning
a particular kind of matter with uniform properties; the essential nature of something; material or content
Example
The scientist analyzed the unknown substance in the laboratory.
El científico analizó la sustancia desconocida en el laboratorio.
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.
C1 noun, verb /səˈpiːnə/

subpoena

citación judicial
Meaning
a legal document ordering someone to attend court; to summon someone with such a document
Example
The witness received a subpoena to appear in court next week.
El testigo recibió una citación judicial para comparecer en la corte la próxima semana.
A2 noun /streŋθ/

Strength

fuerza; potencia; fuerza física
Meaning
the quality or state of being physically strong; power or force
Example
Regular exercise helps build muscle strength.
El ejercicio regular ayuda a desarrollar la fuerza muscular.
A2 noun /ˈʃaʊər/

shower

ducha
Meaning
a brief fall of rain or snow or a device for taking a bath or washing oneself
Example
After the workout, I took a quick shower to refresh myself.
Despues del entrenamiento, me di una ducha rapida para refrescarme.
C1 noun /ˈsʌn.stroʊk/

Sunstroke

golpe de calor
Meaning
a serious condition caused by overheating from prolonged exposure to high temperatures
Example
The worker suffered from sunstroke after working outside all day.
El trabajador sufrió un golpe de calor después de trabajar afuera todo el día.
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.
A2 adjective /ˈsɛvrəl/

several

varios
Meaning
more than one but not many; a few
Example
Several people attended the meeting yesterday.
Varios personas asistieron a la reunión ayer.
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.
C1 adjective /ˈsɪm.jʊ.leɪ.tɪd/

simulated

simulado
Meaning
Artificially created to look real but not actually real.
Example
The pilot trained in a simulated flight environment.
El piloto entrenó en un ambiente de vuelo simulado.
B2 adjective /səˈpɔːtɪv/

supportive

apoyo
Meaning
providing encouragement or emotional help to someone
Example
She was very supportive during my difficult times.
Ella fue muy supportive durante mis tiempos difíciles.
C1 noun /ˌsɒl.jʊˈbɪləti/

solubility

solubilidad
Meaning
The ability of a substance to dissolve in a solvent.
Example
The solubility of salt in water is high.
La solubilidad de la sal en agua es alta.
C1 noun /ˈsɪmətri/

symmetry

simetría
Meaning
the quality of having balanced proportions or identical parts facing each other
Example
The building’s symmetry impressed the visitors.
La simetría del edificio impresionó a los visitantes.
A2 verb /swɪm/

swim

nadar
Meaning
to move through water using body movements
Example
I love to swim in the ocean during summer.
Me encanta nadar en el océano durante el verano.
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.
C1 noun /ˈsɔːl.tɪd fɪʃ/

Salted fish

pescado salado
Meaning
fish preserved with salt; dried and salted fish for storage
Example
Salted fish is a traditional way to preserve seafood.
El pescado salado es una forma tradicional de conservar los mariscos.
B1 noun /ˈʃoʊldər/

Shoulder

hombro
Meaning
the part of the body between the neck and the arm
Example
He carried the bag over his shoulder.
Él llevó la bolsa sobre su hombro.
C1 noun /ˈstreɪnər/

Strainer

colador
Meaning
a device having holes punched in it or made of crossed wires for separating solid matter from a liquid
Example
Use a strainer to drain the pasta water.
Usa un colador para drenar el agua de la pasta.
B2 verb /stæk/

stack

apilar o amontonar
Meaning
to arrange things in a neat pile or one on top of another
Example
He stacked the books neatly on the shelf.
Él apiló los libros ordenadamente en la estantería.
A2 noun /ʃɔːrts/

shorts

pantalones cortos
Meaning
a short garment worn on the lower half of the body that covers each leg separately, usually above the knees.
Example
He wore a pair of blue shorts to the beach.
Él usó un par de pantalones cortos azules en la playa.
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.
B1 adjective /ˈsæt.ɪs.fæk.tər.i/

Satisfactory

satisfactorio
Meaning
acceptable; meeting requirements; adequate
Example
The test results were satisfactory.
Los resultados de la prueba fueron satisfactorios.
A2 preposition /sɪns/

since

desde
Meaning
from a particular time in the past until now
Example
I have known her since childhood.
La conozco desde la infancia.
B2 adjective /səˈbɜːrbən/

suburban

suburbano
Meaning
relating to or characteristic of a suburb or the people living there
Example
They bought a house in a quiet suburban area.
Compraron una casa en una zona suburbana tranquila.
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.
B1 verb /ʃaʊt/

shout

gritar
Meaning
to say something very loudly
Example
He shouted at the top of his lungs to get their attention.
Él gritó tan fuerte como pudo para captar su atención.
B1 adjective /sɪˈlek.tɪd/

selected

seleccionado
Meaning
carefully chosen from a group for a particular purpose
Example
He was one of the selected candidates for the scholarship.
Él fue uno de los candidatos seleccionados para la beca.
C1 noun /ˈsækrɪlɪdʒ/

sacrilege

sacrilegio
Meaning
Violation or misuse of what is regarded as sacred.
Example
Stealing from the temple was considered an act of sacrilege.
Robar del templo se consideraba un acto de sacrilegio.
A2 noun /suːt/

suit

traje
Meaning
a set of clothes made of the same fabric, usually consisting of trousers and a jacket
Example
He wore a black suit to the wedding.
Él llevó un traje negro a la boda.
B1 noun/verb /skɔːr/

score

puntuación
Meaning
a number of points achieved in a game or test; to gain points or achieve a goal
Example
He scored the winning goal in the final match.
Él marcó el gol ganador en el partido final.
B2 adjective /senˈseɪʃənəl/

Sensational

sensacional; impresionante; asombroso
Meaning
causing great excitement or shock; extremely impressive
Example
The sensational performance left the audience speechless.
El rendimiento sensacional dejó a la audiencia sin palabras.
B2 verb /sʌk/

suck

chupar
Meaning
to draw something into the mouth by using the lips and tongue
Example
The baby began to suck her thumb.
El bebé empezó a chuparse el dedo.
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 /ˈsɑːri/

Saree

sari
Meaning
a garment consisting of a length of cotton or silk elaborately draped around the body, traditionally worn by women from South Asia
Example
She looked elegant in her red silk saree at the festival.
Ella lucía elegante con su sari de seda roja en el festival.
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.
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.
C1 noun /ˈsteɪtəs kwoʊ/

status quo

status quo
Meaning
The existing state of affairs, especially regarding social or political issues.
Example
The government decided to maintain the status quo until further review.
El gobierno decidió mantener el status quo hasta una revisión posterior.
B2 noun sɛlf rɪˈlaɪ.əns

self-reliance

autosuficiencia
Meaning
Reliance on one's own powers and resources rather than those of others; independence.
Example
Self-reliance helps build confidence.
La autosuficiencia ayuda a construir confianza.
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.
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.
C2 adverb /ˌsʌb ˈroʊzə/

sub rosa

en secreto
Meaning
secretly, in confidence, or in private
Example
The deal was made sub rosa to avoid public scrutiny.
El trato se hizo sub rosa para evitar el escrutinio público.
B2 noun /ˈskɔːr.pi.ən/

Scorpion

escorpión
Meaning
a small creature with eight legs, two claws, and a curved tail with a poisonous sting
Example
The scorpion hid under the rock during the day.
El escorpión se escondió debajo de la roca durante el día.
C2 verb /səˈfjuːz/

suffuse

difundir
Meaning
to gradually spread through or over something
Example
A warm glow suffused her face as she smiled.
Un resplandor cálido se difundió por su rostro mientras ella sonreía.
C1 noun /ˈstɪm.jʊ.laɪ/

stimuli

estímulo
Meaning
Things that create reactions or provide motivation.
Example
Bright light and loud sounds are common stimuli for alertness.
La luz brillante y los sonidos fuertes son estímulos comunes para la alerta.
C1 noun /ˈseɪ.tən/

Satan

Satanás
Meaning
the chief evil spirit; the Devil in Christian and Islamic belief
Example
According to religious texts, Satan tempts people to sin.
Según los textos religiosos, Satanás tienta a las personas a pecar.
C1 adjective /ˌsɛlf ˈraɪtʃəs/

self-righteous

autojustificado
Meaning
Having or showing an attitude of moral superiority; believing one’s own beliefs are the only right ones.
Example
His self-righteous comments made everyone uncomfortable.
Sus comentarios autojustificados hicieron que todos se sintieran incómodos.
C1 adjective /ˈstʌm.pi/

Stumpy

bajo y grueso
Meaning
short and thick; having a short, thick appearance
Example
The stumpy little dog wagged its tail enthusiastically.
El perrito bajo y grueso movió su cola con entusiasmo.
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.
B2 noun /soʊp keɪs/

Soap case

caja de jabón
Meaning
a container used to store soap
Example
She bought a beautiful soap case for the bathroom.
Ella compró una hermosa caja de jabón para el baño.
B1 noun /ˈsæl.ər.i/

Salary

salario
Meaning
a fixed regular payment, typically paid on a monthly basis
Example
She receives a good salary for her work as a teacher.
Ella recibe un buen salario por su trabajo como profesora.
C1 adjective /ˈspɪndli/

spindly

delgado y débil
Meaning
Long, thin, and weak-looking
Example
The spindly tree bent under the weight of the snow.
El árbol delgado se inclinó bajo el peso de la nieve.
C2 verb /ˌsuːpərˈæn.ju.eɪt/

superannuate

jubilar con pensión
Meaning
to retire someone with a pension, usually due to age or long service
Example
The company decided to superannuate its senior employees after thirty years of service.
La empresa decidió jubilar con pensión a sus empleados senior después de treinta años de servicio.
C2 noun /ˌsɪləbɪˈkeɪʃən/

syllabication

silabeación
Meaning
The division of words into syllables.
Example
Proper syllabication helps in correct pronunciation.
Una correcta silabeación ayuda a una pronunciación correcta.
C1 adjective /ˈstoʊɪk/

stoic

estoico, imperturbable
Meaning
Showing little or no emotion, even in difficult situations.
Example
She remained stoic during the crisis, never showing fear or panic.
Ella permaneció estoica durante la crisis, sin mostrar miedo ni pánico.
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.
B2 adjective /ˈstraɪkɪŋ/

striking

impactante
Meaning
very noticeable or impressive in appearance or effect
Example
Her striking beauty caught everyone's attention.
Su belleza impactante atrajo la atención de todos.
A1 noun /ʃuː/

Shoe

zapato
Meaning
covering for the foot, typically made of leather or cloth
Example
She bought a new pair of running shoes for exercise.
Ella compró un par de zapatos para correr para hacer ejercicio.
B2 adjective /ˈsɛkʃʊəl/

sexual

sexual
Meaning
relating to the instincts, physiological processes, and activities connected with physical attraction or intimate physical contact between individuals
Example
The sexual health of individuals is an important topic in modern medicine.
La salud sexual de las personas es un tema importante en la medicina moderna.
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.
C1 noun /ˈstɒpɪdʒ/

stoppage

parada; detención
Meaning
The act of stopping or ceasing; a halt in operation or activity
Example
The sudden stoppage of the train caused delays for all passengers.
La parada repentina del tren causó retrasos a todos los pasajeros.
C1 adjective /ˈskrɔːni/

scrawny

flaco
Meaning
very thin and bony, often looking unhealthy
Example
The scrawny boy could barely lift the heavy bag.
El chico flaco apenas podía levantar la bolsa pesada.
B2 adverb /ˈʃɑːrpli/

sharply

bruscamente
Meaning
suddenly and strongly; in a cutting or intense way
Example
Prices rose sharply after the announcement.
Los precios subieron bruscamente después del anuncio.
C1 noun /ˌstætʃuˈɛt/

statuette

estatuilla
Meaning
A small statue, usually decorative or artistic.
Example
The artist won a gold statuette for his work.
El artista ganó una estatuilla de oro por su trabajo.
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.
A1 adjective /ˈsɪmpəl/

Simple

fácil; simple; sin complicaciones
Meaning
easy to understand or do; not complicated
Example
This is a simple recipe that anyone can follow.
Esta es una receta fácil que cualquiera puede seguir.
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.
B2 adjective /ˈstʌf.i/

Stuffy

falta de aire fresco; mal ventilado; actitud formal y conservadora
Meaning
lacking fresh air; poorly ventilated; formal and conservative in attitude
Example
The room was stuffy and needed fresh air.
La habitación estaba viciada y necesitaba aire fresco.
B2 verb /straɪv/

strive

esforzarse
Meaning
To make great efforts to achieve or obtain something.
Example
She strives to be the best student in her class.
Ella se esfuerza por ser la mejor estudiante en su clase.
B1 noun, verb /strɪŋ/

string

hilo
Meaning
a thin piece of cord or thread; to tie or fasten with a string
Example
She tied the package with a string.
Ella ató el paquete con un hilo.
B2 noun, verb /stɛm/

stem

tallo / frenar
Meaning
Noun: The main stalk of a plant. Verb: To stop or restrict the flow or development of something.
Example
The gardener cut the stem of the rose; New policies aim to stem the flow of pollution.
El jardinero cortó el tallo de la rosa; Las nuevas políticas buscan frenar el flujo de contaminación.
C1 verb /swɜːrv/

swerve

cambiar de dirección bruscamente
Meaning
to change direction suddenly, especially to avoid hitting something
Example
The car swerved to avoid the dog.
El coche cambió de dirección bruscamente para evitar al perro.
C1 adjective /ˈskwɒlɪd/

squalid

extremadamente sucio
Meaning
extremely dirty and unpleasant, often due to poverty or neglect
Example
He lived in a squalid room with broken furniture.
Vivía en una habitación sucia con muebles rotos.
B2 adjective /slɪk/

slick

resbaladizo
Meaning
Smooth, clever, or efficient, often in a way that seems superficial.
Example
He gave a slick presentation to impress the investors.
Hizo una presentación resbaladiza para impresionar a los inversores.
A2 adjective /ˈsɪŋɡəl/

single

único
Meaning
only one; not one of several
Example
She bought a single ticket for the concert.
Ella compró un boleto sencillo para el concierto.
B1 verb /straɪk/

Strike

golpear
Meaning
to hit forcefully; to stop work as a form of protest
Example
Lightning strikes the tall building during the storm.
El rayo golpea el edificio alto durante la tormenta.
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.
B2 noun /streɪn/

Strain

tensión; presión; agotamiento;
Meaning
pressure or tension; excessive demand on strength or resources
Example
Working long hours put a strain on his health.
Trabajar muchas horas puso una tensión en su salud.
A2 adjective /sɪk/

Sick

enfermo; con náuseas; mal
Meaning
unwell; having a disease or illness; feeling nauseous
Example
She stayed home from work because she was feeling sick.
Ella se quedó en casa del trabajo porque se sentía mal.
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.
C1 noun səˈlɪnɪti ɪnˈtruːʒən

salinity intrusion

intrusión de salinidad
Meaning
The movement of salt water into freshwater areas, typically affecting coastal regions.
Example
Salinity intrusion affects coastal regions.
La intrusión de salinidad afecta las regiones costeras.
A2 verb /stɔːr/

store

almacenar
Meaning
to keep things in a place for future use; to save information
Example
She stores her winter clothes in the attic.
Ella guarda su ropa de invierno en el ático.
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.
A2 noun/verb /ˈsiːzən/

season

estación / sazonar
Meaning
One of the four periods of the year characterized by specific weather conditions; also, to add flavor to food.
Example
Spring is my favorite season of the year.
La primavera es mi estación favorita del año.
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.
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 adjective sɪˈmæn.tɪk

semantic

relacionado con el significado en el lenguaje
Meaning
Related to meaning in language; concerning the interpretation of words and sentences.
Example
AI models use semantic analysis to understand context.
Los modelos de IA utilizan análisis semántico para entender el contexto.
C1 noun /ˌstætɪˈstɪʃən/

statistician

estadístico
Meaning
A person who specializes in collecting, analyzing, and interpreting numerical data.
Example
The statistician presented the survey results with great clarity.
El estadístico presentó los resultados de la encuesta con gran claridad.
C1 adjective /ˈsliːzi/

sleazy

de mala calidad, inmoral o barato
Meaning
morally low, dirty, or cheap in quality
Example
He avoided the sleazy nightclub downtown.
Él evitó el club nocturno sórdido en el centro.
B2 adjective, verb (past) /səˈspɛndɪd/

suspended

suspendido
Meaning
Temporarily not allowed, stopped, or hanging.
Example
He was suspended from school for a week.
Él fue suspendido de la escuela por una semana.
C1 adjective ˈsɛd(ə)ntəri

sedentary

sedentario
Meaning
Characterized by much sitting and little physical activity.
Example
A sedentary lifestyle can lead to numerous health problems.
Un estilo de vida sedentario puede conducir a numerosos problemas de salud.