sly
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B2 adjective /slaɪ/

sly

Meaning
Clever in a deceitful or cunning way.
Example
She gave him a sly smile.
A2 adjective /ˈsep.ər.ət/

Separate

Meaning
distinct; not connected; individual; apart
Example
Please keep your personal and professional lives separate.
B2 noun /ˈsʌfərɪŋ/

suffering

Meaning
the state of undergoing pain, distress, or hardship
Example
They tried to relieve his suffering with medicine.
B2 noun /ˈsʌm.ɪt/

summit

Meaning
A high-level meeting between leaders, especially of governments; a conference.
Example
The summit addressed pressing global issues.
B2 noun ˈsʌbstɪˌtut

substitute

Meaning
A person or thing acting or serving in place of another.
Example
Money cannot be a substitute for genuine happiness.
C1 noun /stɪˈlɛtoʊ/

stiletto

Meaning
A small, thin, high-heeled shoe or a dagger with a slender blade.
Example
She wore elegant stiletto heels to the party.
A2 adjective /ˈʃaɪ.ni/

Shiny

Meaning
reflecting light; bright and polished; glossy
Example
The shiny new car caught everyone's attention.
C1 adjective /ˌsɛlf ˈraɪtʃəs/

self-righteous

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.
B1 noun, verb /stɒk/

stock

Meaning
a supply of goods kept for sale or use; to keep or fill with goods
Example
The shop stocks a wide variety of products.
C2 verb /ˈsɪn.tɪ.leɪt/

scintillate

Meaning
to sparkle or shine brightly; to emit flashes of light
Example
The diamond ring scintillated under the bright lights.
A2 adjective /səkˈsɛsfəl/

Successful

Meaning
having achieved a desired aim or result; prosperous
Example
She was successful in her career as a doctor.
B1 adverb /ˈsædli/

sadly

Meaning
in a sorrowful or unhappy manner
Example
She sadly waved goodbye as the train departed.
B2 adjective /ˈstʌb.ərn/

Stubborn

Meaning
refusing to change opinion or course of action; persistent; obstinate
Example
The stubborn child refused to eat his vegetables.
B2 noun /slɛdʒ/

sledge

Meaning
a vehicle for traveling over snow, often pulled by animals
Example
The children rode a sledge down the snowy hill.
B2 adjective /ˈsɛksi/

sexy

Meaning
sexually attractive or exciting
Example
She wore a sexy red dress to the party.
C2 adjective /ˌseɪpiˈɛnʃəl/

sapiential

Meaning
Relating to wisdom or knowledge, often in a religious or philosophical sense.
Example
The monk shared sapiential teachings with his students.
B2 verb səˈpres

suppress

Meaning
To forcibly put an end to; to restrain or subdue.
Example
Authorities must suppress criminal activities in campuses.
B1 noun /ˈsʌn.flaʊər/

Sun flower

Meaning
a large yellow flower that turns to face the sun
Example
The sunflower field looked amazing in the bright sunlight.
B2 noun /ˈʃɛərˌhoʊldər/

shareholder

Meaning
an individual or organization that owns shares in a company
Example
Each shareholder has the right to vote at the annual meeting.
C1 noun /ˌsɒl.jʊˈbɪləti/

solubility

Meaning
The ability of a substance to dissolve in a solvent.
Example
The solubility of salt in water is high.
B2 noun /spæm/

spam

Meaning
unsolicited or unwanted electronic communication, typically in the form of email
Example
My inbox is full of spam emails that I need to delete.
B1 adjective /ˌstreɪtˈfɔːwəd/

straightforward

Meaning
easy to understand or do; simple
Example
Her explanation was straightforward and clear.
C2 adjective /ˌsɛm.iˈkɒn.ʃəs/

semiconscious

Meaning
Only partly conscious; not fully aware of surroundings.
Example
He was semiconscious after the accident and could barely respond.
B2 noun /ˈsʌ.plɪ.mənt/

Supplement

Meaning
something that completes or adds to something else; a dietary product
Example
She takes vitamin supplements to maintain her health.
C1 verb /ˈstriːm.laɪn/

streamline

Meaning
To make a process simpler and more efficient.
Example
The company aims to streamline production to reduce costs.
A2 adjective /streɪt/

Straight

Meaning
extending or moving uniformly in one direction; not curved or bent; honest
Example
Draw a straight line from point A to point B.
C2 noun /sɒmˈnæmbjʊlɪst/

somnambulist

Meaning
A person who sleepwalks.
Example
The somnambulist wandered out of the house at night.
C2 adjective /ˈsʌb.æs.ɪd/

subacid

Meaning
Slightly sour or acidic in taste or nature.
Example
The fruit had a subacid flavor that was refreshing on a hot day.
C1 adjective /ˈsɛreɪtɪd/

serrated

Meaning
Having a notched or saw-toothed edge.
Example
The bread knife had a serrated blade.
C1 noun /ˈskævɪndʒər/

scavenger

Meaning
an animal or person that feeds on dead or discarded material
Example
Vultures are natural scavengers that clean up the environment.
C2 adjective /sɪˈdɪʃəs/

seditious

Meaning
Encouraging rebellion against authority.
Example
The activist spread seditious pamphlets among the crowd.
C2 noun /ˌsuː.pər.əˈbʌn.dəns/

superabundance

Meaning
An excessive or overflowing amount of something.
Example
The garden was filled with a superabundance of flowers.
A2 adjective /streɪndʒ/

strange

Meaning
unusual or not normal
Example
It was strange to see him at the party after so long.
C2 adjective /suːˈpɜːrnəl/

supernal

Meaning
Relating to the heavens; celestial or divine.
Example
The painting captured a supernal beauty that felt otherworldly.
B1 adjective /ˈsæt.ɪs.fæk.tər.i/

Satisfactory

Meaning
acceptable; meeting requirements; adequate
Example
The test results were satisfactory.
B1 adverb /ˈʃɔːt.li/

Shortly

Meaning
soon; in a short time; briefly
Example
The meeting will begin shortly.
B2 noun, verb /skruː/

screw

Meaning
a metal fastener with a helical ridge; to fasten or tighten something with a screw
Example
He screwed the shelf to the wall tightly.
B2 adjective /ˈsʌt.əl/

subtle

Meaning
So delicate or precise as to be difficult to analyze or describe; making use of clever and indirect methods.
Example
The artist's use of color was subtle yet powerful.
A2 noun /siːt/

seat

Meaning
a place to sit, especially a chair or other place for sitting
Example
I reserved a seat for you at the concert.
B2 adjective /slɪm/

slim

Meaning
thin in an attractive or healthy way; small in amount or chance
Example
She looked slim in her new dress.
C1 verb /ˈskwɒndər/

squander

Meaning
to waste money, time, or opportunities in a careless way
Example
He squandered his inheritance on gambling.
A2 adjective /ˈsaɪ.lənt/

Silent

Meaning
making no sound; quiet; not speaking
Example
The library was completely silent during study hours.
C1 noun /ˈstoʊəˌweɪ/

stowaway

Meaning
A person who hides on a ship, plane, or other vehicle in order to travel secretly without paying.
Example
The crew discovered a stowaway hiding in the cargo hold.
B2 verb /siːz/

seize

Meaning
To take hold of suddenly and forcibly.
Example
The police managed to seize the stolen goods.
C1 noun səbˈsɪs.təns

subsistence

Meaning
The action or fact of maintaining or supporting oneself at a minimum level.
Example
Many farmers depend on subsistence agriculture.
C1 noun ˈsɛlf pəˈzɪʃən

self-possession

Meaning
The quality of being calm and confident and in control of one's emotions; composure.
Example
His self-possession during the crisis was remarkable.
A2 noun/verb /sɛns/

sense

Meaning
A faculty by which the body perceives external stimuli; or to perceive something without being told.
Example
She had a strong sense of responsibility.
C1 verb /sərˈpæs/

surpass

Meaning
to exceed or go beyond
Example
Her performance surpassed all expectations.
C1 noun /səˈlɛmnɪti/

solemnity

Meaning
the state or quality of being serious and dignified
Example
The ceremony was conducted with great solemnity.
B1 noun /ˈʃel.tər/

Shelter

Meaning
a place giving temporary protection from bad weather or danger
Example
The hikers found shelter in a cave during the heavy rain.
C1 noun /ˌsæl.ɪ.naɪˈzeɪ.ʃən/

salinization

Meaning
The process of increasing salt content in soil.
Example
Excessive irrigation can cause salinization of farmland.
C2 verb /səˈfjuːz/

suffuse

Meaning
to gradually spread through or over something
Example
A warm glow suffused her face as she smiled.
A2 adjective /sər'praɪz.ɪŋ/

Surprising

Meaning
causing surprise; unexpected; remarkable
Example
It's surprising how quickly children learn new languages.
B2 noun /ˌsuːvəˈnɪər/

Souvenir

Meaning
a thing that is kept as a reminder of a person, place, or event; a memento
Example
I bought a small souvenir from the gift shop.
B2 noun /spaɪs/

spice

Meaning
a substance used to add flavor to food
Example
She added a pinch of spice to the curry for extra flavor.
C1 adjective /stɔːntʃ/

staunch

Meaning
Loyal, committed, and firm in support.
Example
She is a staunch supporter of environmental protection.
C1 noun /ˌsɛlfsəˈfɪʃənsi/

Self-sufficiency

Meaning
the ability to supply one's own needs without external assistance; independence
Example
The farm achieved complete self-sufficiency in food production.
B2 adjective /swɪft/

swift

Meaning
moving very quickly; happening promptly
Example
The river current was swift after the heavy rain.
B2 verb /səbˈtrækt/

subtract

Meaning
to take away a number or amount from another number or amount
Example
If you subtract 5 from 10, you get 5.
B2 noun /swɪŋ/

Swing

Meaning
move or cause to move back and forth or from side to side while suspended or on an axis
Example
The children love to swing in the park.
C1 noun /ˈsɛdətɪv/

sedative

Meaning
A substance that calms the nerves or induces sleep.
Example
The doctor prescribed a sedative to help the patient sleep.
C2 adjective /spraɪ/

spry

Meaning
active and lively, especially in old age
Example
The spry grandmother surprised everyone with her quick dance steps.
A2 adjective /smuːð/

Smooth

Meaning
having an even surface; without difficulties; flowing easily
Example
The road was smooth and comfortable to drive on.
A2 adverb /ˈseɪf.li/

Safely

Meaning
in a safe manner; without danger or risk
Example
Drive safely on the icy road.
C1 noun /speɪt/

spate

Meaning
a large number of things occurring in quick succession
Example
There has been a spate of robberies in the city.
C1 verb /ˈʃrɪvəl/

shrivel

Meaning
To become dry, wrinkled, and smaller due to lack of moisture.
Example
The flowers shriveled under the hot sun.
B2 noun /ˈsiː.krə.si/

Secrecy

Meaning
the practice of keeping something secret; the state of being kept hidden
Example
The project was conducted in complete secrecy.
A2 adjective /skaɪ bluː/

Sky-blue

Meaning
a bright blue color like that of a clear sky
Example
Her sky-blue eyes sparkled in the sunlight.
C2 noun /ˈslʌɡərd/

sluggard

Meaning
A lazy, sluggish person.
Example
The sluggard refused to get out of bed even at noon.
A1 noun /ˈsekənd/

second

Meaning
a unit of time equal to one sixtieth of a minute; also the position after first
Example
He finished the race in second place.
A2 noun /ˈsɪl.vər/

Silver

Meaning
a shiny white precious metal used for making jewelry and ornaments
Example
The silver ring sparkled in the sunlight.
C1 adjective /ˈskwɒlɪd/

squalid

Meaning
extremely dirty and unpleasant, often due to poverty or neglect
Example
He lived in a squalid room with broken furniture.
C1 noun /ˈstɛə.rɪ.əʊˌtaɪ.pɪŋ/

stereotyping

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.
B1 noun /sɔɪl/

soil

Meaning
The upper layer of earth in which plants grow.
Example
The soil in this area is reddish.
C1 adjective /ˈsæljʊˌtɛri/

salutary

Meaning
Producing good effects; beneficial, especially after something unpleasant.
Example
The accident was a salutary reminder to drive carefully.
C1 verb/noun /stuːp/

stoop

Meaning
To bend one's body forward and downward; also a small porch or staircase at the entrance of a house
Example
He had to stoop to pick up the coin.
C2 adjective /ˌstaʊtˈhɑːrtɪd/

stouthearted

Meaning
Brave, determined, and courageous
Example
The stouthearted soldier never gave up.
C2 adjective /saɪˈdɪəriəl/

sidereal

Meaning
Relating to the stars or constellations; measured relative to the stars.
Example
Astronomers use sidereal time to track the positions of stars.
B2 verb /sɔːr/

soar

Meaning
to fly or rise high in the air; to increase rapidly or dramatically
Example
The eagle soared high above the mountains.
A1 noun /ˈsʌmər/

summer

Meaning
the warmest season of the year, between spring and autumn
Example
We love going to the beach during summer.
A2 noun /skɜːrt/

Skirt

Meaning
a garment that hangs from the waist and covers part or all of the legs
Example
She chose a blue skirt to match her blouse.
B2 noun /ˌsɪm.ɪˈlær.ə.ti/

Similarity

Meaning
the quality or state of being similar; resemblance
Example
There is a striking similarity between the two paintings.
C1 adjective /səbˈsɜːviənt/

subservient

Meaning
prepared to obey others unquestioningly; less important than something else
Example
She was too subservient to challenge his decision.
B2 adjective /stiːp/

steep

Meaning
Having a sharp inclination or high slope; also can mean excessive (as in price).
Example
The hikers climbed a steep mountain trail.
C1 verb /ˈsɪn.θə.saɪz/

synthesize

Meaning
To combine a number of things into a coherent whole.
Example
Scientists synthesize new compounds for medical research.
B1 noun /stæf/

staff

Meaning
a group of employees working together in an organization
Example
The staff at the hospital are very helpful.
B2 noun /ˈsɛntəmənt/

Sentiment

Meaning
a feeling or opinion, especially one based on emotion; tender feelings of affection
Example
Public sentiment was strongly against the new policy.
A2 noun /ˈsɪriz/

Series

Meaning
a number of events, objects, or people of a similar or related kind coming one after another; a set of related television or radio programmes
Example
The detective series ran for five successful seasons.
B2 noun /ˈskændəl/

scandal

Meaning
an event or action that causes public outrage or damage to one's reputation
Example
The politician's affair became a public scandal.
C2 adjective /ˈsɑːdn/

sodden

Meaning
thoroughly soaked or saturated with liquid
Example
His clothes were sodden after the heavy rain.
A2 adverb /ˈsɪə.ri.əs.li/

seriously

Meaning
in a solemn or thoughtful manner
Example
She took the matter very seriously.
C1 verb /səbˈsaɪd/

subside

Meaning
to become less intense, violent, or severe; to sink or fall to a lower level
Example
After the storm, the floodwaters began to subside.
C2 adjective /ˈstraɪ.eɪ.tɪd/

striated

Meaning
marked with thin lines, grooves, or stripes
Example
The muscle fibers appeared striated under the microscope.
A2 noun /seɪf/

Safe

Meaning
secure container for storing valuables; protection from danger
Example
He kept his important documents in the office safe.
B1 verb /stretʃ/

stretch

Meaning
to extend or expand; to make or become longer or wider
Example
Athletes stretch their muscles before exercising.
A2 noun /ʃeɪp/

Shape

Meaning
the external form or appearance of something; condition or state
Example
The artist drew a perfect circle shape on the canvas.
C2 noun /səˈvɑːnt/

savant

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.
C1 noun, adjective, verb /ʃæm/

sham

Meaning
something that is not what it appears to be; a false or fake thing; to pretend
Example
The deal turned out to be a sham.
C1 adjective /sər'pæs.ɪŋ/

Surpassing

Meaning
exceeding; going beyond; outstanding
Example
Her surpassing beauty made everyone stop and stare.
A2 noun ˈsaɪəns

science

Meaning
The intellectual and practical activity encompassing the systematic study of the structure and behaviour of the physical and natural world through observation and experiment.
Example
Science continues to explore the unknown.
A2 adjective /sɪksθ/

sixth

Meaning
coming after the fifth in order, position, or rank
Example
He finished the race in sixth place.
A2 verb /smel/

smell

Meaning
to perceive odor through the nose; to have an odor
Example
The flowers smell sweet.
C2 adjective /ˈsɪnjuːi/

sinewy

Meaning
Lean and muscular; strong and tough.
Example
The athlete had a sinewy build that showed his strength.
B2 noun /ˈsɛnət/

senate

Meaning
a legislative or governing body, typically the upper chamber in a bicameral legislature
Example
The senate voted in favor of the new healthcare bill.
C1 adjective /steɪd/

staid

Meaning
Serious, respectable, and unadventurous.
Example
He came from a staid family background.
B2 noun /ˈsʌb.sɪ.di/

subsidy

Meaning
Financial assistance provided by government to reduce costs of goods or services.
Example
The government provides a fuel subsidy to control prices.
B2 noun /ˈsmɑːrt.nəs/

Smartness

Meaning
intelligence; cleverness; neat and fashionable appearance
Example
Her smartness in solving problems impressed everyone.
B2 noun /ˈsɑːfmɔːr/

sophomore

Meaning
a student in their second year of study at a university or high school
Example
He’s a sophomore in college, studying computer science.
B2 adjective /sɪmˈbɒlɪk/

symbolic

Meaning
serving as a symbol or representing something else
Example
The dove is symbolic of peace and freedom.
C1 adjective /ˈsɪlkən/

Silken

Meaning
made of silk; smooth and soft like silk
Example
She wore a beautiful silken dress to the party.
C1 noun /ˈskeɪp.ɡəʊt/

Scapegoat

Meaning
a person who is blamed for the wrongdoings, mistakes, or faults of others
Example
He became the scapegoat for the team's poor performance.
C1 adjective /ˈspʌndʒi/

Spongy

Meaning
soft and full of holes like a sponge; porous
Example
The cake had a light and spongy texture.
C2 adjective /ˌsɪkəˈfæntɪk/

sycophantic

Meaning
Behaving in a way that is excessively obedient or servile to gain favor.
Example
His sycophantic behavior annoyed his colleagues.
A2 noun/verb/adjective /ˈsʌbdʒɪkt/ (noun), /səbˈdʒɛkt/ (verb)

subject

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.
C2 noun /sɪˈkwiːlə/

sequela

Meaning
A condition that is the consequence of a previous disease or injury.
Example
Lung scarring can be a sequela of severe pneumonia.
A2 abbreviation (noun/pronoun) /ˈsʌmθɪŋ/

sth.

Meaning
abbreviation for 'something'
Example
Can you give me sth. to write with?
A2 adverb /ˈstrɒŋɡli/

strongly

Meaning
in a strong manner or to a great extent
Example
She strongly believes in the power of positive thinking.
A1 adjective strɒŋ

strong

Meaning
Having the power to move heavy weights or perform other physically demanding tasks.
Example
A strong defense secures victory.
A1 adverb /soʊ/

so

Meaning
to such a degree or extent
Example
She was so happy with the gift.
C2 adjective /ˈseɪpiənt/

sapient

Meaning
Wise, or appearing to be wise.
Example
The professor gave a sapient response to the complex question.
C1 verb /siːp/

seep

Meaning
to flow or leak slowly through small openings or pores
Example
Water began to seep through the cracks in the wall.