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C1 verb ˈsɪŋ.krə.naɪz

synchronize

sincronizar
Meaning
To coordinate in time; to cause to occur or operate at the same time or rate.
Example
The dancers need to synchronize their movements.
Los bailarines necesitan sincronizar sus movimientos.
B2 verb /swer/

swear

jurar; maldecir; prometer solemnemente
Meaning
to use offensive language; to promise solemnly; to take an oath
Example
I swear to tell the truth.
Juro decir la verdad.
A2 adjective /ˈsʌdən/

Sudden

repentino; abrupto; inesperado;
Meaning
happening or done quickly and unexpectedly; abrupt
Example
There was a sudden change in the weather.
Hubo un cambio repentino en el clima.
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.
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.
C2 adjective /ˌstaʊtˈhɑːrtɪd/

stouthearted

valiente
Meaning
Brave, determined, and courageous
Example
The stouthearted soldier never gave up.
El soldado valiente nunca se rindió.
B2 verb /ˈskætər/

scatter

esparcir
Meaning
to spread or throw around in different directions
Example
The wind scattered the leaves across the yard.
El viento dispersó las hojas por el jardín.
C1 verb /ˈsɪmjʊˌleɪt/

simulate

simular
Meaning
to imitate the appearance, character, or behavior of something; to pretend or reproduce conditions artificially
Example
The pilot had to simulate an emergency landing during training.
El piloto tuvo que simular un aterrizaje de emergencia durante el entrenamiento.
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.
C2 verb /ʃiːð/

sheathe

volver a meter en la vaina
Meaning
to put a sword or knife back into its cover
Example
He quickly sheathed his sword after the duel.
Él rápidamente volvió a meter su espada en su vaina después del duelo.
B1 noun ˈseʃən

session

sesión
Meaning
A meeting of an official body, especially a legislature, council, or court of law, to conduct its business.
Example
The session was held on February 25.
La sesión se celebró el 25 de febrero.
C1 noun/verb /smʌdʒ/

smudge

mancha, marca sucia
Meaning
a dirty mark or smear; to make something dirty or unclear by rubbing or touching
Example
She accidentally smudged her lipstick on the napkin.
Ella accidentalmente manchó su lápiz labial en la servilleta.
C2 adjective /ˌsuː.pər.ɪˈrɑː.ɡə.tɔːr.i/

supererogatory

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

scrumptious

exquisito
Meaning
extremely tasty or delicious
Example
She baked a scrumptious chocolate cake for the party.
Ella horneó un exquisito pastel de chocolate para la fiesta.
C1 verb /ˈspɪərˌhɛd/

spearhead

encabezar
Meaning
to lead or initiate an action, project, or movement
Example
She spearheaded the campaign for environmental awareness.
Ella encabezó la campaña por la conciencia ambiental.
B2 noun /swiːt/

suite

suite
Meaning
a set of rooms designated for one person's or family's use or for a particular purpose
Example
They stayed in the presidential suite at the hotel.
Se hospedaron en la suite presidencial del hotel.
C1 adjective /ˈsted.fæst/

Steadfast

firme; resuelto; inquebrantable
Meaning
firm in belief, determination, or adherence; unwavering
Example
She remained steadfast in her commitment to helping the poor.
Ella permaneció firme en su compromiso de ayudar a los pobres.
C2 noun /ˈsaɪnɪkjʊər/

sinecure

trabajo fácil
Meaning
a position requiring little or no work but giving financial benefit or status
Example
He was given a sinecure at the university as a reward for his loyalty.
Le dieron un trabajo fácil en la universidad como recompensa por su lealtad.
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.
B2 noun /skʌl/

Skull

cráneo
Meaning
the bony framework of the head that protects the brain
Example
The doctor examined the skull X-ray carefully.
El doctor examinó cuidadosamente la radiografía del cráneo.
B2 noun /steɪn/

Stain

mancha; huella
Meaning
a colored patch or dirty mark that is difficult to remove; a blemish or damage to reputation
Example
There was a coffee stain on his white shirt.
Había una mancha de café en su camisa blanca.
C1 noun /ˈʃɜːrbət/

sherbet

sorbete
Meaning
a sweet flavored drink or a frozen dessert made from sweetened fruit juice
Example
On hot days, she enjoys a glass of lemon sherbet.
En los días calurosos, disfruta de un vaso de sorbete de limón.
A1 noun /ˈsɪstər/

sister

hermana
Meaning
a female sibling; a girl or woman in relation to other children of her parents
Example
My sister is coming to visit us next week.
Mi hermana vendrá a visitarnos la próxima semana.
B1 noun /swet/

Sweat

sudor
Meaning
moisture exuded through the pores of the skin, typically as a reaction to heat, physical exertion, fever, or fear
Example
After running for an hour, he was covered in sweat.
Después de correr una hora, estaba cubierto de sudor.
B1 noun /ˈsteɪtəs/

status

estado
Meaning
the social or professional position or condition of someone or something
Example
His social status improved after the promotion.
Su estado social mejoró después de la promoción.
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.
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 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.
B2 verb /sniːk/

sneak

moverse en secreto
Meaning
to move quietly and secretly to avoid being noticed
Example
He tried to sneak into the house without waking anyone.
Trató de colarse en la casa sin despertar a nadie.
B1 noun ˈstrʌɡ.əl

struggle

lucha
Meaning
A forceful or violent effort to get free of restraint or resist attack; a determined effort under difficult circumstances.
Example
The struggle for independence united the nation.
La lucha por la independencia unió a la nación.
C1 noun/verb /snɛər/

snare

trampa
Meaning
a trap for catching animals; to catch or trap
Example
The hunter set a snare to catch rabbits.
El cazador puso una trampa para atrapar conejos.
C2 noun /sɪˈdɪʃ.ən/

Sedition

sedición
Meaning
conduct or speech inciting people to rebel against authority; treason
Example
The activist was charged with sedition for his inflammatory speeches.
El activista fue acusado de sedición por sus discursos inflamatorios.
A2 adjective /ˈsʌn.i/

Sunny

soleado; optimista
Meaning
bright with sunlight; cheerful and optimistic
Example
It's a beautiful sunny day perfect for a picnic.
Es un hermoso día soleado, perfecto para un picnic.
C1 verb /sɪft/

sift

tamizar / examinar cuidadosamente
Meaning
to separate or sort through carefully, often using a sieve or by examining closely
Example
She sifted the flour before adding it to the cake mixture.
Ella tamizó la harina antes de agregarla a la mezcla del pastel.
C1 noun /ˈstaɪləs/

stylus

estilógrafo
Meaning
a small tool used for writing, drawing, or touching screens
Example
She used a stylus to draw on her tablet.
Usó un estilógrafo para dibujar en su tableta.
C1 verb ˈsɪn.θə.saɪ.zɪŋ

synthesizing

sintetizar, combinar, presentar de forma coherente
Meaning
Combine (a number of things) into a coherent whole.
Example
He excels in synthesizing ideas from different sources.
Él sobresale en sintetizar ideas de diferentes fuentes.
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.
C1 noun /sleɪ/

sleigh

trineo
Meaning
A vehicle pulled by horses or reindeer over snow or ice.
Example
Children were excited to ride in the sleigh through the snowy village.
Los niños estaban emocionados de montar en el trineo por el pueblo nevado.
C2 verb /ˈsnɪvəl/

snivel

llorar o quejarse de manera débil o molesta
Meaning
to cry or complain in a weak or annoying way
Example
He began to snivel when he didn’t get his way.
Comenzó a llorar cuando no consiguió lo que quería.
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.
C1 adjective /ˈsʌltri/

sultry

caluroso y húmedo, atractivo
Meaning
Uncomfortably hot and humid; also describes someone attractive in a passionate or sensual way.
Example
The sultry weather made it hard to focus on work.
El clima caluroso y húmedo dificultaba concentrarse en el trabajo.
B2 noun ˌsɛlf ˈdɪs.ə.plɪn

self-discipline

autodisciplina
Meaning
The ability to control one's emotions and behavior.
Example
Self-discipline is crucial for achieving long-term success.
La autodisciplina es crucial para alcanzar el éxito a largo plazo.
B2 adjective /suːˈpɪə.ri.ər/

Superior

superior; mejor que el promedio
Meaning
higher in rank, quality, or importance; better than average
Example
This product is superior to all others in the market.
Este producto es superior a todos los demás en el mercado.
C2 noun /ˈsɪʒ.ən/

scission

cisión
Meaning
the act of cutting or dividing something
Example
The political party suffered a scission over ideological disputes.
El partido político sufrió una cisión debido a disputas ideológicas.
C1 adjective /səbˈsɪd.i.ər.i/

Subsidiary

subsidiario; secundario; relacionado con una empresa subsidiaria
Meaning
less important than the main thing; secondary; of or relating to a subsidiary company
Example
The subsidiary company handles all overseas operations.
La empresa subsidiaria maneja todas las operaciones en el extranjero.
A1 noun /ʃɜːrt/

Shirt

camisa
Meaning
a piece of clothing worn on the upper body with sleeves and buttons
Example
He wore a white shirt to the office.
Él usó una camisa blanca para la oficina.
C2 adjective /ˈsækərɪn/

saccharine

felicidad
Meaning
Excessively sweet or sentimental.
Example
His saccharine smile seemed insincere.
No pudo ocultar su felicidad cuando recibió el premio.
A1 noun /skuːl/

school

escuela
Meaning
An institution for educating children; also a group of people sharing the same ideas or discipline.
Example
The children walked to school together.
Los niños caminaron juntos a la escuela.
B2 noun /sɔːrd/

Sword

espada
Meaning
a weapon with a long metal blade and a handle, used for fighting
Example
The knight drew his sword to defend the castle.
El caballero sacó su espada para defender el castillo.
B2 verb /spɪn/

spin

girar
Meaning
To turn around quickly or cause something to rotate
Example
The dancer began to spin gracefully on the stage.
La bailarina comenzó a girar con gracia en el escenario.
C1 noun səˈfɪʃənsi

sufficiency

suficiencia
Meaning
The condition of being adequate or enough; adequacy.
Example
The sufficiency of food supply is critical for survival.
La suficiencia del suministro de alimentos es crítica para la supervivencia.
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.
C2 noun /ˈsɒlɪˌsɪzəm/

solecism

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

seed

semilla
Meaning
the small, hard part of a plant from which a new plant can grow
Example
I planted a seed in the garden.
Plante una semilla en el jardín.
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.
A1 noun /sɔːŋ/

song

canción
Meaning
a short piece of music with words that are sung
Example
She sang a beautiful song at the concert.
Ella cantó una hermosa canción en el concierto.
A1 adjective /seɪm/

same

igual
Meaning
identical; not different or changed
Example
We wore the same dress at the party.
Llevábamos el mismo vestido en la fiesta.
B1 verb /sɪŋk/

sink

hundir
Meaning
to go down below the surface; to descend
Example
The ship sinks in the deep ocean.
El barco se hunde en el océano profundo.
B1 noun /ˈsʌn.set/

Sunset

puesta del sol
Meaning
the time in the evening when the sun disappears below the horizon
Example
The romantic sunset painted the sky in golden colors.
El romántico atardecer pintó el cielo con colores dorados.
A2 verb /skiː/

ski

esquiar
Meaning
to glide over snow on skis
Example
We went skiing in the Alps last winter.
Fuimos a esquiar en los Alpes el invierno pasado.
C1 adjective /ˈsɛnʃuəs/

sensuous

sensual
Meaning
Relating to or affecting the senses rather than the intellect; pleasing to the senses.
Example
The garden was filled with sensuous colors and fragrances.
El jardín estaba lleno de colores y fragancias sensuales.
B2 adjective /ˈseɪ.krɪd/

Sacred

sagrado
Meaning
connected with God or a god; considered holy; worthy of religious worship
Example
The sacred temple was visited by thousands of pilgrims.
El templo sagrado fue visitado por miles de peregrinos.
C2 adjective /ˈswɔːrði/

swarthy

moreno
Meaning
Having a dark complexion or skin tone.
Example
The sailor had a swarthy face from years under the sun.
El marinero tenía la cara morena después de años bajo el sol.
C1 verb /ˈsmʌðər/

smother

sofocar / asfixiar
Meaning
to kill someone by covering their nose and mouth to prevent breathing; to cover something completely; to overwhelm with excessive attention or affection
Example
She smothered the fire with a blanket.
Ella sofocó el fuego con una manta.
C2 noun /ˈskʌl.i.ən/

scullion

sirviente de cocina
Meaning
a servant assigned the most menial kitchen tasks
Example
In medieval times, a scullion was responsible for cleaning pots and pans.
En la Edad Media, un scullion era responsable de limpiar las ollas y sartenes.
B2 verb, noun /ʃeɪv/

shave

afeitar
Meaning
To remove hair from the body, typically using a razor; the act of removing hair
Example
He likes to shave every morning before work.
Le gusta afeitarse todas las mañanas antes del trabajo.
C1 verb/noun /skaʊl/

scowl

fruncir el ceño
Meaning
To frown in an angry or bad-tempered way.
Example
She scowled when she heard the unfair remark.
Ella frunció el ceño cuando escuchó el comentario injusto.
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 /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 verb /səbˈmɜːrdʒ/

submerge

sumergir
Meaning
to put under water or cover with liquid
Example
The floodwaters threatened to submerge the village.
Las aguas de la inundación amenazaron con sumergir el pueblo.
C2 adjective /ˌseɪpiˈɛnʃəl/

sapiential

relacionado con la sabiduría
Meaning
Relating to wisdom or knowledge, often in a religious or philosophical sense.
Example
The monk shared sapiential teachings with his students.
El monje compartió enseñanzas relacionadas con la sabiduría con sus estudiantes.
B1 adjective /ˈsɒlɪd/

solid

sólido
Meaning
firm and stable in shape; not liquid or fluid
Example
The ground was solid underfoot.
El suelo estaba sólido bajo los pies.
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.
A1 verb /sel/

sell

vender
Meaning
to give something to someone in exchange for money
Example
They sell fresh fruits at the market.
Venden frutas frescas en el mercado.
C2 adjective /ˈsuːpaɪn/

supine

en posición supina
Meaning
Lying on the back, face upward; failing to act due to laziness or weakness.
Example
He lay supine on the grass, staring at the stars.
Él estaba acostado en el césped, mirando las estrellas.
B2 adverb /ˈskɪl.fəl.i/

Skilfully/US: Skillfully

habilidosamente
Meaning
in a way that shows ability and training; expertly
Example
She skilfully painted the portrait in just two hours.
Ella pintó el retrato hábilmente en solo dos horas.
C1 adjective /ˈskræpi/

scrappy

peleador / desordenado
Meaning
Determined and willing to fight or argue; also messy or disorganized.
Example
Despite being small, he was a scrappy fighter.
A pesar de ser pequeño, era un peleador audaz.
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.
B2 adverb ˌsɪməlˈteɪnɪəsli

simultaneously

simultáneamente
Meaning
At the same time; occurring or existing at the same time.
Example
He worked on two projects simultaneously.
Trabajó en dos proyectos simultáneamente.
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.
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.
C1 noun /ˈsɛpərətɪst/

separatist

separatista
Meaning
A person who supports the separation of a group from a larger body, often for political or cultural independence.
Example
The separatist group demanded independence from the central government.
El grupo separatista exigió la independencia del gobierno central.
C1 verb /struː/

strew

esparcir
Meaning
to scatter or spread things untidily over a surface or area
Example
Clothes were strewn across the floor.
La ropa estaba esparcida por el suelo.
B2 verb /ˈstræŋɡəl/

strangle

estrangular
Meaning
to kill or stop someone or something by squeezing the throat or restricting flow
Example
The villain tried to strangle his opponent in the dark alley.
El villano intentó estrangular a su oponente en el callejón oscuro.
B2 verb /səˈluːt/

salute

saludar
Meaning
to greet with respect; to honor
Example
The soldiers saluted their commanding officer.
Los soldados saludaron a su oficial al mando.
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.
A1 adjective /ˈsɔːri/

sorry

lo siento
Meaning
feeling regret or sympathy
Example
She felt sorry for what had happened.
Ella se sintió mal por lo que había sucedido.
B2 noun, verb /steɪk/

stake

participación, riesgo
Meaning
A share or interest in a business or venture; to risk or support something of value.
Example
He has a major stake in the new company.
Él tiene una participación importante en la nueva empresa.
C1 noun /ˌsæl.ɪ.naɪˈzeɪ.ʃən/

salinization

aumento de salinidad
Meaning
The process of increasing salt content in soil.
Example
Excessive irrigation can cause salinization of farmland.
El riego excesivo puede causar aumento de salinidad en los campos.
B2 adjective /ˈsɪnɪstər/

sinister

sinistro
Meaning
Giving the impression that something harmful or evil is happening or will happen.
Example
The abandoned house had a sinister atmosphere.
La casa abandonada tenía una atmósfera siniestra.
C2 noun səˈtaɪ.ə.ti

satiety

satisfacción
Meaning
The feeling of being satisfied or full, especially with regard to food.
Example
High-fiber foods provide longer satiety.
Los alimentos ricos en fibra proporcionan mayor satisfacción.
B2 noun /strɪp/

Strip

una tira larga y estrecha de tela, papel, plástico u otro material
Meaning
a long narrow piece of cloth, paper, plastic, or other material
Example
She tore a strip of paper from the notebook.
Ella arrancó una tira de papel del cuaderno.
A1 noun /ʃɒp/

shop

tienda
Meaning
a place where goods are sold to customers
Example
I need to go to the shop to buy some groceries.
Necesito ir a la tienda para comprar algunos víveres.
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.
B2 noun /sɪnˈserɪti/

Sincerity

sinceridad
Meaning
the quality of being free from pretense or deceit; honesty
Example
His sincerity in apologizing was evident to everyone.
Su sinceridad al disculparse fue evidente para todos.
B2 noun ˈstræt.ɪ.dʒiz

strategies

estrategias
Meaning
A plan of action designed to achieve a long-term or overall aim; the art of planning and directing operations.
Example
Effective strategies can mitigate climate change impacts.
Las estrategias efectivas pueden mitigar los impactos del cambio climático.
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.
A2 noun səkˈsɛs

success

éxito
Meaning
The accomplishment of an aim or purpose; the attainment of popularity or profit
Example
Success requires focus and determination.
El éxito requiere enfoque y determinación.
B1 noun /ˈsɜr.fɪs/

Surface

superficie; capa superior
Meaning
the outside part or uppermost layer of something
Example
The submarine emerged to the surface of the ocean.
El submarino emergió a la superficie del océano.
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.
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 /ˌsuːpərˈnuːmərɛri/

supernumerary

suplementario
Meaning
Exceeding the usual number; extra or unnecessary.
Example
The play included several supernumerary actors to fill the background scenes.
La obra incluyó varios actores suplementarios para llenar las escenas de fondo.
B2 adjective /ˈʃæl.oʊ/

Shallow

superficial; poco profundo; falta de conocimiento profundo
Meaning
not deep; superficial; lacking depth of knowledge
Example
The shallow water is perfect for children to play.
El agua superficial es perfecta para que los niños jueguen.
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.
A2 verb /stʌk/

stuck

atascado
Meaning
unable to move; fixed in one position; unable to continue
Example
The door is stuck and won't open.
La puerta está atascada y no se abrirá.
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.
B2 noun /səˈvaɪvl/

survival

supervivencia
Meaning
the state of continuing to live or exist, typically in difficult conditions
Example
Survival in the wild can be a challenging experience.
La supervivencia en la naturaleza puede ser una experiencia desafiante.
C1 verb /ˈsaɪdˌtræk/

sidetrack

desviar
Meaning
To distract from the main subject or activity.
Example
She was sidetracked by an unexpected phone call.
Ella se desvió por una llamada telefónica inesperada.
A1 pronoun /ˈsʌmbədi/

somebody

alguien
Meaning
an unspecified person
Example
Somebody is knocking at the door.
Alguien está tocando la puerta.
C2 adjective /ˈsɪnjuːi/

sinewy

musculoso y fuerte
Meaning
Lean and muscular; strong and tough.
Example
The athlete had a sinewy build that showed his strength.
El atleta tenía una constitución musculosa que mostraba su fuerza.
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.
B1 adjective /ˈsɪniər/

senior

senior
Meaning
having a higher rank or status; older or more experienced
Example
He is the senior manager in the department.
Él es el gerente senior en el departamento.
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.
B1 verb /seɪl/

sail

navegar con velas
Meaning
to travel on water in a boat or ship using sails or by wind power
Example
They sailed across the Atlantic Ocean last summer.
Ellos navegaron a través del océano Atlántico el verano pasado.
B2 noun /suː.pɪər.iˈɔːr.ə.ti/

Superiority

superioridad
Meaning
the quality or state of being superior; higher rank or quality
Example
His superiority in mathematics was evident from his test scores.
Su superioridad en matemáticas era evidente por sus puntajes de prueba.
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.
B2 adjective /skeərs/

Scarce

raro; difícil de encontrar; existente en pequeñas cantidades
Meaning
rare; not easily found; existing in small quantities
Example
Fresh water is becoming increasingly scarce in desert regions.
El agua fresca se está volviendo cada vez más escasa en las regiones desérticas.
C1 noun ˈsæŋktɪti

sanctity

santidad
Meaning
The state or quality of being holy, sacred, or saintly; ultimate importance.
Example
The sanctity of life should never be compromised.
La santidad de la vida nunca debe ser comprometida.
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.
C1 adjective /ˈspel.baʊnd/

Spellbound

hechizado; cautivado
Meaning
completely fascinated and unable to move or think about anything else; enchanted
Example
The children sat spellbound as the magician performed his tricks.
Los niños se quedaron hechizados mientras el mago hacía sus trucos.
B1 adjective /ˈsʌm.wʌt/

Somewhat

algo; un poco; moderadamente
Meaning
to some extent; rather; moderately
Example
The movie was somewhat interesting but not great.
La película fue algo interesante, pero no genial.