swelter
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C1 verb /ˈswɛltər/

swelter

Meaning
to suffer from intense heat
Example
We began to swelter in the midday sun.
C1 adjective ˈsɒvrɪn

sovereign

Meaning
Possessing supreme or ultimate power; independent.
Example
The sovereign government has control over its currency.
B2 verb /ˈsʌfəkeɪt/

suffocate

Meaning
to cause someone to die or have difficulty breathing by depriving them of air
Example
The child nearly suffocated when trapped in the locked room.
C2 adjective /ˈsiːmli/

seemly

Meaning
proper or appropriate in behavior or appearance
Example
It was not seemly to argue loudly during the ceremony.
C1 noun/verb /stæmˈpiːd/

stampede

Meaning
A sudden, uncontrolled rush of people or animals; to cause a mass movement.
Example
The loud noise caused a stampede of the crowd.
B1 adjective ˈsteɪbl

stable

Meaning
Not likely to change or fail; firmly established.
Example
Strong nuclear force keeps the nucleus stable.
B2 noun /ˈsnoʊ.fɔːl/

Snowfall

Meaning
the process of snow falling from the sky; the amount of snow that falls
Example
The heavy snowfall blocked all the roads yesterday.
C1 noun ˌsɪs.təˈmæt.ɪk ˈstræt.ə.dʒi

systematic strategy

Meaning
A methodical and organized plan or approach to achieve specific objectives.
Example
A systematic strategy was employed to achieve objectives.
C1 verb /sɪˈkluːd/

seclude

Meaning
To keep someone away from other people; to isolate.
Example
The monk chose to seclude himself in the mountains.
C1 noun /slæb/

slab

Meaning
a large, thick, flat piece of stone, concrete, or other hard material
Example
The workers laid a concrete slab for the foundation.
B2 noun /ˈskuːtər/

scooter

Meaning
a small two-wheeled vehicle powered by an engine or electricity
Example
She rides a scooter to work every day.
C2 adjective /ˌstaʊtˈhɑːrtɪd/

stouthearted

Meaning
Brave, determined, and courageous
Example
The stouthearted soldier never gave up.
C1 adjective, verb /sɪˈdeɪt/

sedate

Meaning
calm, quiet, and composed; or to administer a drug to make someone calm or sleep
Example
The nurse sedated the patient before the operation.
C1 noun /səˈlɛmnɪti/

solemnity

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

silence

Meaning
Complete absence of sound; quietness.
Example
Silence filled the air near the graves.
A1 verb /steɪ/

stay

Meaning
to remain in the same place; to continue being
Example
Please stay here until I return.
C2 noun /sɪlf/

sylph

Meaning
A mythical spirit of the air; also refers to a slender, graceful woman.
Example
She moved across the stage like a sylph, light and graceful.
A2 verb /səˈpəʊz/

suppose

Meaning
to assume or believe something is true without proof
Example
I suppose she will be here soon.
B2 noun /səˈspɪʃən/

Suspicion

Meaning
a feeling or thought that someone is guilty of an illegal or dishonest activity
Example
The police arrested him on suspicion of theft.
B2 noun /ˈʃʌv.əl/

Shovel

Meaning
a tool with a broad flat blade and long handle used for digging and moving earth, snow, or other materials
Example
He grabbed a shovel to clear the snow from the driveway.
B2 verb /stɜːr/

stir

Meaning
to mix or move something in a circular motion, especially in liquid
Example
She stirred the soup to make sure it didn't burn.
B2 adverb /ˈsmuːð.li/

Smoothly

Meaning
without problems or difficulties; in an even and regular way
Example
The car runs smoothly on the new highway.
B1 verb /skɪp/

skip

Meaning
to omit or pass over something; to move lightly or quickly
Example
He decided to skip breakfast and go straight to work.
C1 verb /ˈsɪmjʊˌleɪt/

simulate

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.
C1 verb/noun /skaʊl/

scowl

Meaning
To frown in an angry or bad-tempered way.
Example
She scowled when she heard the unfair remark.
B2 noun /spaɪt/

spite

Meaning
a desire to hurt, annoy, or offend someone
Example
She refused the gift out of spite.
C1 noun ˈsɪn.tæks

syntax

Meaning
The arrangement of words and phrases to create well-formed sentences in a language.
Example
Programming languages follow strict syntax rules.
B1 noun /ˈsɛkʃən/

section

Meaning
a distinct part or subdivision of something larger
Example
This section of the report needs further review.
B1 adjective /sɪnˈsɪər/

Sincere

Meaning
honest and genuine in expressing feelings; free from pretense or deceit
Example
She gave me a sincere apology for her mistake.
B2 noun /ˈskʌlp.tər/

Sculptor

Meaning
an artist who creates sculptures by carving, modeling, or shaping materials
Example
The sculptor spent months creating a beautiful marble statue.
C1 noun /ˈsæŋk.ʃən/

Sanction

Meaning
official permission or approval; a penalty for disobeying a rule
Example
The government imposed economic sanctions on the country.
B2 noun /ˈswɒl.oʊ/

Swallow

Meaning
a small migratory bird with long wings and a forked tail
Example
The swallow built its nest under the roof.
C1 adjective /ˈsɛptɪk/

septic

Meaning
Infected with harmful bacteria; relating to or causing infection.
Example
The doctor treated the patient's septic wound immediately.
C2 adjective /ˈsiːkwənt/

sequent

Meaning
Following in order or as a result.
Example
The sequent events changed the course of history.
C2 verb /ˈstræɡəl/

straggle

Meaning
To move or spread in an irregular, scattered, or untidy way.
Example
The children began to straggle behind on the long hike.
A2 adverb /ˈsɪə.ri.əs.li/

seriously

Meaning
in a solemn or thoughtful manner
Example
She took the matter very seriously.
C2 adjective /sɪmˈfoʊniəs/

symphonious

Meaning
Harmonious; producing a pleasant sound or agreement of sound.
Example
The choir's voices were symphonious and filled the hall with beauty.
C1 adjective /sər'pæs.ɪŋ/

Surpassing

Meaning
exceeding; going beyond; outstanding
Example
Her surpassing beauty made everyone stop and stare.
C1 noun /strəˈtiː.dʒɪk ˈɪn.saɪts/

strategic insights

Meaning
Deep understanding and wisdom gained through careful analysis for planning purposes.
Example
Strategic insights guide policymaking.
B2 noun /ˌsɛkʃuˈæləti/

sexuality

Meaning
a person's capacity for sexual feelings and orientation
Example
She spoke openly about her sexuality and identity.
B1 noun ˈstrætədʒi

strategy

Meaning
A plan of action designed to achieve a long-term or overall aim.
Example
The strategy ensured success.
C1 verb /spɜːr/

spur

Meaning
To encourage or motivate someone to take action.
Example
The teacher's praise spurred him to study harder.
A2 noun ˈsɜːrvɪs

service

Meaning
An act of helping or doing work for someone.
Example
True education promotes the value of service to others.
C2 adjective /sɒmˈnɪfərəs/

somniferous

Meaning
Tending to induce sleep; soporific.
Example
The professor's somniferous lecture put half the class to sleep.
C1 noun /ˌsɛrənˈdɪpɪti/

serendipity

Meaning
The occurrence of events by chance in a happy or beneficial way.
Example
Finding that old photo album was pure serendipity.
B2 noun /sərˈvaɪvər/

Survivor

Meaning
a person who survives, especially a person remaining alive after an event in which others have died
Example
She is a cancer survivor who now helps other patients.
B2 verb /sʌk/

suck

Meaning
to draw something into the mouth by using the lips and tongue
Example
The baby began to suck her thumb.
C2 adjective /ˈʃɑːpwɔːrn/

shopworn

Meaning
worn or faded from being displayed in a shop; no longer fresh or original
Example
The shopworn shoes were sold at a discount.
B1 noun /ˈsʌp.ər/

Supper

Meaning
an evening meal, typically a light or informal one
Example
We usually have supper around seven o'clock.
C1 verb /smɛlt/

smelt

Meaning
to extract metal from its ore by heating and melting
Example
The workers smelt iron from its ore in the factory.
B2 adjective ˈskɒl.ə.li

scholarly

Meaning
Having or showing great knowledge or learning; academic in approach or method.
Example
He wrote a scholarly article on ancient philosophy.
C1 noun /ˌsɛnsəˈbɪləti/

Sensibility

Meaning
the ability to appreciate and respond to complex emotional or aesthetic influences; sensitivity
Example
Her artistic sensibility made her appreciate fine details in paintings.
C1 noun /ˈstreɪnər/

Strainer

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.
C2 noun /ˈsɪlvər kɑrp/

Silver carp

Meaning
a large freshwater fish with silvery scales, commonly farmed for food
Example
Silver carp is widely cultivated in fish farms across Asia.
C1 noun /ʃraɪn/

Shrine

Meaning
a holy or sacred place dedicated to a specific deity, ancestor, hero, or saint
Example
Pilgrims visit the shrine to pray for good health.
B2 noun/verb /stʌmp/

stump

Meaning
the base of a tree left after the trunk is cut down; to puzzle or confuse
Example
The question completely stumped the students.
A1 pronoun /ˈsʌmbədi/

somebody

Meaning
an unspecified person
Example
Somebody is knocking at the door.
C1 noun /ˈsɪstərhʊd/

sisterhood

Meaning
The relationship between sisters, or a community of women united by shared experiences or goals.
Example
The feminist movement created a strong sense of sisterhood among women.
B2 noun /səbˈskrɪp.ʃən/

Subscription

Meaning
a payment for regular delivery of a service or product; an arrangement to receive something regularly
Example
I canceled my Netflix subscription because I wasn't watching it enough.
B2 noun /ˌsuːpərɪnˈtɛndənt/

superintendent

Meaning
a person who oversees, manages, or directs an organization, building, or project
Example
The superintendent visited the classrooms to check on progress.
A1 verb /set/

set

Meaning
to put or place something in a position; to establish
Example
She set the book on the table.
B2 noun /ˌspeʃiˈælɪti/

Speciality

Meaning
a particular area of activity or interest that someone focuses on; expertise in a specific field
Example
His speciality is Italian cuisine.
B1 noun /ʃel/

Shell

Meaning
hard outer covering of an animal; explosive projectile for a gun
Example
The artillery fired a shell at the enemy position.
B2 adjective /ˈspɒtɪd/

Spotted

Meaning
having spots or marks; noticed or seen
Example
The spotted leopard moved silently through the jungle.
B2 noun /spɑːrk/

Spark

Meaning
a small fiery particle thrown off from a fire; a flash of light; something that triggers or initiates
Example
A spark from the campfire ignited the dry leaves.
C2 noun /ˌsɪŋ.krəˈnɪs.ɪ.ti/

synchronicity

Meaning
The meaningful coincidence of two or more events that are not planned.
Example
The synchronicity of their thoughts amazed everyone.
B2 noun /ˈspɒnsəʃɪp/

sponsorship

Meaning
the act of supporting an event, activity, person, or organization financially or through other resources
Example
The event was made possible due to the sponsorship of several big companies.
C1 verb /ˈsnɪkər/

snicker

Meaning
to laugh quietly in a disrespectful or mocking way
Example
The students snickered when the teacher made a mistake.
B2 noun /soʊl/

Sole

Meaning
the bottom part of the foot; the bottom part of a shoe
Example
I have a blister on the sole of my foot.
C1 verb /ˈskʌt.əl/

scuttle

Meaning
To run hurriedly with short, quick steps; or to deliberately sink a ship.
Example
The children scuttled back to their seats when the teacher entered.
A2 noun /skɪlz/

skills

Meaning
The ability to do something well; expertise.
Example
Learning new skills can increase personal and professional growth.
B2 phrase ˈsɛvən ˈhæbɪts

seven habits

Meaning
Regular behaviors or actions that are done consistently over time, specifically referring to a set of seven key practices.
Example
Even habits help in maintaining a balanced lifestyle.
C1 adjective /ˈsʌpl/

supple

Meaning
Easily bending or moving without breaking; flexible and adaptable.
Example
The gymnast’s body was remarkably supple.
B2 noun /skɛtʃ/

sketch

Meaning
a simple, rough drawing or outline
Example
He made a quick sketch of the landscape.
A1 noun /ˈsætərdeɪ/

saturday

Meaning
The day of the week between Friday and Sunday; traditionally the sixth day of the week
Example
We are going to the beach on Saturday.
C2 verb /ˈsʌbdʒʊˌɡeɪt/

subjugate

Meaning
To bring under domination or control, especially by conquest.
Example
The empire sought to subjugate the neighboring kingdoms.
C2 noun /ˈsɒfɪstri/

sophistry

Meaning
the use of clever but false arguments, often to deceive
Example
The politician's speech was full of sophistry.
C2 noun /ˈsʌbtrəˌhɛnd/

subtrahend

Meaning
a number that is to be subtracted from another number
Example
In the equation 10 - 4, the number 4 is the subtrahend.
B2 noun /ˈspɒt.laɪt/

spotlight

Meaning
a strong beam of light directed onto a particular area; figuratively, public attention
Example
The singer stood proudly in the spotlight.
A2 noun /ʃiːp/

sheep

Meaning
a farm animal with thick wool that is raised for its wool, meat, and milk
Example
The farmer keeps a large flock of sheep.
B1 noun /səˈdʒes.tʃən/

Suggestion

Meaning
an idea or plan put forward for consideration; advice or recommendation
Example
Do you have any suggestions for improving our team's productivity?
B1 adjective /spəˈsɪfɪk/

specific

Meaning
Clearly defined or identified; particular; exact.
Example
Make a specific plan to beat procrastination.
B2 adjective /ˈsɛksi/

sexy

Meaning
sexually attractive or exciting
Example
She wore a sexy red dress to the party.
A1 adverb /ˈsʌm.taɪmz/

Sometimes

Meaning
at times; occasionally; now and then
Example
Sometimes I go for a walk in the evening.
B2 verb /ˈsɪmbəlaɪz/

symbolize

Meaning
to represent or stand for something else
Example
The dove symbolizes peace across cultures.
C2 adjective /spæzˈmɒdɪk/

spasmodic

Meaning
occurring irregularly or in sudden bursts
Example
The patient experienced spasmodic coughing during the night.
C2 noun /sɪˈmɪlɪtjuːd/

Similitude

Meaning
the quality or state of being similar; resemblance
Example
The similitude between the two paintings suggested they were by the same artist.
C1 noun /səbˈmɪtəl/

submittal

Meaning
the act of submitting something, especially a document for consideration or approval
Example
The contractor sent the submittal to the client for approval.
C1 noun ˈsɒl.vən.si

solvency

Meaning
The possession of assets in excess of liabilities; ability to pay debts.
Example
The company's solvency improved after restructuring.
C1 verb /səˈkʌm/

succumb

Meaning
To give in to pressure, temptation, or illness; to yield or fail to resist.
Example
He finally succumbed to his illness after a long struggle.
A2 noun /ˈsoʊldʒərz/

soldiers

Meaning
members of an army who serve their country in war or peace
Example
The soldiers marched proudly down the street.
A2 noun /ˈsɪŋ.ər/

Singer

Meaning
a person who sings, especially as a job or profession
Example
The singer performed beautifully at the concert last night.
A1 adjective /ˈsɪmpəl/

Simple

Meaning
easy to understand or do; not complicated
Example
This is a simple recipe that anyone can follow.
C1 adjective /ˈʃɑːdi/

shoddy

Meaning
badly made or done; of poor quality
Example
The contractor did a shoddy job on the repairs.
C2 noun /sneɪk ɡɔːrd/

Snake gourd

Meaning
a long, curved vegetable that resembles a snake, commonly used in South Asian cuisine
Example
The snake gourd grows in a twisted, serpentine shape in the garden.
B2 noun /sneɪl/

Snail

Meaning
a small soft creature with a shell on its back that moves very slowly
Example
The snail left a shiny trail as it crawled across the leaf.
C2 noun /ˈsaʊər wʊd ˈæp.əl/

Sour wood apple

Meaning
a tropical fruit with hard shell and tangy flesh; elephant apple
Example
The sour wood apple has a unique taste that many people enjoy.
C2 noun /ˈsɒlɪˌsɪzəm/

solecism

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.
C2 adjective /ˈswɔːrði/

swarthy

Meaning
Having a dark complexion or skin tone.
Example
The sailor had a swarthy face from years under the sun.
C1 noun /sɪr/

seer

Meaning
A person who is supposed to be able to see what will happen in the future; a prophet.
Example
The seer predicted a great change in the kingdom.
C1 noun /ˈsɛntɪnəl/

sentinel

Meaning
A soldier or guard whose job is to stand and keep watch.
Example
A sentinel stood at the entrance of the camp.
A2 noun /siːd/

seed

Meaning
the small, hard part of a plant from which a new plant can grow
Example
I planted a seed in the garden.
A2 adjective /sɔft/

Soft

Meaning
not hard or firm; gentle; quiet; tender
Example
The pillow is very soft and comfortable.
B2 noun, adjective /ˈsoʊʃəlɪst/

socialist

Meaning
a person who advocates for socialism; relating to socialism
Example
He is a well-known socialist writer.
C1 noun səˌsɛp.təˈbɪl.ə.ti

susceptibility

Meaning
The quality of being likely to be influenced or harmed by a particular thing; vulnerability.
Example
High susceptibility to infections requires extra care.
C2 noun /ˈsiːkənt/

secant

Meaning
A straight line that intersects a curve at two or more points.
Example
In geometry, a secant cuts the circle at two distinct points.
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 noun/verb /smʌdʒ/

smudge

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.
C2 noun /ˈstrɪndʒənsi/

stringency

Meaning
the quality of being strict, precise, or severe
Example
The stringency of the new rules surprised everyone.
B2 verb /spreɪ/

spray

Meaning
to apply liquid to something in a fine mist
Example
She sprayed perfume on her wrist before leaving.
B1 noun /ˌsaʊθˈiːst/

southeast

Meaning
the direction that is between south and east; a region in that direction
Example
The city is located in the southeast of the country.
A2 noun /spɒt/

spot

Meaning
a particular place or position
Example
I found a great spot for a picnic in the park.
C1 adjective /ˌsækrəˈlɪdʒəs/

sacrilegious

Meaning
Showing disrespect or irreverence toward something sacred.
Example
The painting was criticized as being sacrilegious.
B1 noun /ˈskwɪr.əl/

Squirrel

Meaning
a small agile tree-dwelling rodent with a long bushy tail
Example
The squirrel gathered nuts for winter.
C2 noun /ˈspɒt.ɪd sneɪk hed/

Spotted snake head

Meaning
a type of freshwater fish with spotted markings and an elongated head resembling a snake
Example
The spotted snake head is a popular fish for aquaculture in South Asia.
C1 verb, noun /sæp/

sap

Meaning
As a noun: the vital fluid in plants; As a verb: to gradually weaken or drain strength.
Example
The long journey began to sap his energy.
B2 noun /səˈraʊn.dɪŋz/

surroundings

Meaning
The area around a person, place, or thing.
Example
She quickly adapted to her new surroundings.
C1 adjective /ˈsʌbstəntɪv/

substantive

Meaning
Having a firm basis in reality; important, meaningful, or considerable.
Example
The company made substantive changes to its policy.
C1 noun /ˈspaɪər/

spire

Meaning
a tall, pointed structure on top of a building, especially a church
Example
The church spire could be seen from miles away.
A1 verb /spik/

speak

Meaning
to say words; to communicate verbally
Example
She can speak three languages fluently.
C2 verb /ˈsʌk.əl/

suckle

Meaning
to feed a baby or young animal with milk from the breast or udder
Example
The mother cat suckled her kittens in the basket.