sanitization
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C1 noun ˌsæn.ɪ.taɪˈzeɪ.ʃən

sanitization

Meaning
The process of cleaning and disinfecting to eliminate germs and bacteria.
Example
Regular sanitization keeps appliances germ-free.
C1 noun /sɪˈkriː.ʃən/

Secretion

Meaning
a process by which substances are produced and discharged from a cell or gland
Example
Insulin secretion is crucial for blood sugar regulation.
B2 verb /ˈsɪmplɪfaɪ/

simplify

Meaning
to make easier to understand or do; to reduce complexity
Example
The teacher simplified the complex equation for the students.
C1 noun /ˈstɪmjʊlənt/

stimulant

Meaning
A substance that raises levels of physiological or nervous activity in the body.
Example
Coffee is a common stimulant that helps people stay awake.
B1 noun /slaɪd/

Slide

Meaning
a smooth surface for sliding down; a piece of playground equipment
Example
The children enjoyed playing on the slide at the park.
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.
A2 noun /ˈsɪstəm/

system

Meaning
a set of connected parts forming a complex whole; an organized method
Example
The education system needs major reforms.
A2 verb /sɜːrtʃ/

search

Meaning
to look carefully for someone or something; to examine thoroughly
Example
The police searched the house for evidence.
B2 noun /skoʊp/

scope

Meaning
the range of one's perception, understanding, or activity
Example
The project is beyond the scope of our resources.
A2 verb /səˈpɔːrt/

support

Meaning
to help or assist someone; to hold up or bear the weight of something
Example
The family will support their son through his studies.
C1 verb /spɜːr/

spur

Meaning
To encourage or motivate someone to take action.
Example
The teacher's praise spurred him to study harder.
A2 adjective /sər'praɪzd/

Surprised

Meaning
feeling or showing surprise; astonished
Example
I was surprised to see my old friend at the market.
B2 adjective /ˈslɪp.ər.i/

Slippery

Meaning
smooth and difficult to hold; causing sliding or slipping
Example
The wet floor was very slippery after cleaning.
B2 adjective /ˈsoʊpi/

Soapy

Meaning
covered with soap; having the characteristics of soap; foamy
Example
The dishes were still soapy after washing.
B2 noun /skɛtʃ/

sketch

Meaning
a simple, rough drawing or outline
Example
He made a quick sketch of the landscape.
B2 noun ˌsɛlf ˈdɪs.ə.plɪn

self-discipline

Meaning
The ability to control one's emotions and behavior.
Example
Self-discipline is crucial for achieving long-term success.
A2 noun /stoʊn/

stone

Meaning
a hard, naturally occurring mineral material found in the earth
Example
He threw a stone into the lake.
C2 verb /ˈsʌblɪmeɪt/

sublimate

Meaning
to redirect strong emotions or desires into socially acceptable activities or channels
Example
She sublimated her anger into painting beautiful landscapes.
B2 noun /səˈvaɪvl/

survival

Meaning
the state of continuing to live or exist, typically in difficult conditions
Example
Survival in the wild can be a challenging experience.
C2 noun /ˈstrɪndʒənsi/

stringency

Meaning
the quality of being strict, precise, or severe
Example
The stringency of the new rules surprised everyone.
C1 verb /sʌlk/

sulk

Meaning
to be silent and bad-tempered because you are angry or disappointed
Example
She sulked in her room after the argument.
C1 adjective /ˈstɛr.aɪl/

sterile

Meaning
Free from bacteria or other living microorganisms; incapable of producing offspring.
Example
The surgeon worked in a sterile environment to avoid infection.
B2 noun /ˈstɑːrt.ʌp/

startup

Meaning
A newly established business, especially a small technology or business company that is just beginning operations.
Example
The startup secured funding from investors.
A2 noun /steɪdʒ/

stage

Meaning
a raised platform or area for performances or presentations
Example
The actor stepped onto the stage to deliver his speech.
A2 noun /ˈsɪk.nəs/

Sickness

Meaning
the state of being ill; a disease or illness
Example
She took time off work due to sickness.
C2 noun /ˈsɒfɪst/

sophist

Meaning
a person who uses clever but misleading arguments
Example
He was dismissed as a sophist who twisted facts to win debates.
B2 noun ˈsəʊ.ʃəl ˈdʒʌs.tɪs

social justice

Meaning
Justice in terms of the distribution of wealth, opportunities, and privileges within a society.
Example
Social justice ensures equality of opportunity.
B1 noun ˈstrætədʒi

strategy

Meaning
A plan of action designed to achieve a long-term or overall aim.
Example
The strategy ensured success.
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.
C1 noun /ˈsaɪd.laɪn dɪˈskʌʃənz/

sideline discussions

Meaning
Informal or secondary conversations that occur outside the main agenda of a formal meeting.
Example
Sideline discussions often lead to agreements.
A2 noun /ʃer/

Share

Meaning
a portion of something; a part or portion of a larger amount
Example
Each partner received an equal share of the company profits.
B2 verb /ˈsɪmpəθaɪz/

sympathize

Meaning
to feel sorry for someone; to understand and share someone's feelings
Example
I sympathize with your loss.
B2 adverb /ˈsiː.mɪŋ.li/

seemingly

Meaning
appearing to be true, but not necessarily so
Example
He was seemingly calm despite the chaos around him.
B2 noun /sfɪər/

sphere

Meaning
a round, three-dimensional shape that is perfectly symmetrical around its center; an area of activity or knowledge
Example
The Earth is almost a perfect sphere.
B1 adjective /skɪld/

Skilled

Meaning
having or showing the knowledge, ability, or training to perform certain activities or work well
Example
He is a skilled carpenter who can build beautiful furniture.
C1 adjective /sɪˈkluːdɪd/

secluded

Meaning
Placed apart from other people or things; private and quiet.
Example
They spent their vacation in a secluded beach house.
B2 noun ˈskruːtɪni

scrutiny

Meaning
Critical observation or examination
Example
The new law is under scrutiny by the legislative body.
A2 verb /siːm/

seem

Meaning
to give the impression of being something or having a particular quality
Example
He seems tired after the long journey.
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 verb /ˈswɛltər/

swelter

Meaning
to suffer from intense heat
Example
We began to swelter in the midday sun.
A2 adverb /ˈsloʊli/

slowly

Meaning
in a slow manner
Example
She walked slowly to the door.
B2 adjective /ˈstʌf.i/

Stuffy

Meaning
lacking fresh air; poorly ventilated; formal and conservative in attitude
Example
The room was stuffy and needed fresh air.
C1 adjective /ˈsaɪz.mɪk/

seismic

Meaning
Relating to earthquakes or vibrations of the earth and its crust.
Example
The region is known for its seismic activity.
C1 adjective /ˈspɛktrəl/

spectral

Meaning
Relating to a ghost or specter; ghostly. Also relating to a spectrum.
Example
The old mansion had a spectral atmosphere at night.
B1 noun /sʌm/

sum

Meaning
the total amount resulting from the addition of two or more numbers or items
Example
The sum of 8 and 12 is 20.
C1 adjective /ˌsuːɪˈsaɪdəl/

Suicidal

Meaning
relating to or having thoughts of killing oneself; extremely dangerous or harmful
Example
The reckless driving was suicidal behavior.
C2 adjective /sʌbˈlɪŋɡwəl/

sublingual

Meaning
situated or applied under the tongue
Example
The doctor prescribed a sublingual tablet for faster absorption.
B2 noun /ˈsmɑːrt.nəs/

Smartness

Meaning
intelligence; cleverness; neat and fashionable appearance
Example
Her smartness in solving problems impressed everyone.
C1 noun /ʃeɪl/

shale

Meaning
a fine-grained sedimentary rock that can be split into thin layers
Example
The region is rich in shale and natural gas deposits.
C2 adjective /ˌsʌb.əˈkwɒt.ɪk/

subaquatic

Meaning
Existing, living, or located under water.
Example
Divers explored the subaquatic cave system filled with rare fish.
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 noun /ˈsɛvərəns/

severance

Meaning
the act of ending something, especially a relationship or employment; compensation paid upon termination
Example
The company offered him severance pay after his job ended.
A2 noun ˈsaɪən.tɪst

scientist

Meaning
A person who is studying or has expert knowledge of one or more of the natural or physical sciences.
Example
The scientist proposed data-driven reforms.
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.
A1 verb /seɪ/

say

Meaning
to speak words; to express something in words
Example
She said hello to me.
C1 noun /skraɪb/

scribe

Meaning
a person who writes documents, especially in ancient times; a professional copyist
Example
In ancient Egypt, scribes recorded important events.
B2 adjective səˈfɪs.tɪ.keɪ.tɪd

sophisticated

Meaning
Having great knowledge or experience of the world and knowing about fashion, culture, and other things that people think are socially important; highly developed or complex.
Example
Sophisticated designs enhance aesthetics.
C2 adjective /ˈsiːmli/

seemly

Meaning
proper or appropriate in behavior or appearance
Example
It was not seemly to argue loudly during the ceremony.
B1 verb /straɪk/

Strike

Meaning
to hit forcefully; to stop work as a form of protest
Example
Lightning strikes the tall building during the storm.
C1 noun /ˈsuːtər/

suitor

Meaning
a man who pursues a relationship with a woman, often with the intent to marry
Example
She had many suitors vying for her attention.
B2 noun /ˈsaɪrən/

siren

Meaning
A device that makes a loud prolonged sound as a signal or warning; in mythology, a creature that lures sailors with enchanting songs.
Example
The police car passed with its siren blaring.
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.
B1 noun /ˈsʌb.stəns/

Substance

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.
C1 noun /ˈspiːʃiː/

specie

Meaning
money in the form of coins rather than notes or credit
Example
The transaction was made in specie.
A1 noun /striːt/

street

Meaning
a public road in a city or town, typically with buildings on one or both sides
Example
He walked down the street to the park.
B2 noun /ˈstɛriəˌtaɪp/

stereotype

Meaning
A widely held but oversimplified and fixed idea of a particular type of person or thing.
Example
It is a stereotype that all gamers are antisocial.
B2 adjective ˌsɪm.əlˈteɪ.ni.əs

simultaneous

Meaning
Occurring, operating, or done at the same time.
Example
Simultaneous crop failures affect global food supply.
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.
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.
C1 noun /ˈstɛnsəl/

stencil

Meaning
A thin sheet of material with a design cut out, used to produce the design on the surface below by applying paint or ink through the cut-out holes.
Example
The artist used a stencil to paint identical stars on the wall.
B2 noun /ˈswɛər wɜːrd/

swear-word

Meaning
An offensive or rude word used to express anger or frustration.
Example
He shouted a swear-word when he hit his toe.
B2 noun /stjuːˈpɪdəti/

stupidity

Meaning
lack of intelligence or common sense
Example
His stupidity caused a lot of problems for the team.
C1 adjective /smʌɡ/

smug

Meaning
having or showing an excessive pride in oneself or one's achievements
Example
He wore a smug smile after winning the debate.
A2 adjective /sɪksθ/

sixth

Meaning
coming after the fifth in order, position, or rank
Example
He finished the race in sixth place.
C2 verb /ˈsɪbəleɪt/

sibilate

Meaning
To pronounce with a hissing sound.
Example
The actor sibilated his lines for dramatic effect.
C1 noun /ˈskruːpəl/

scruple

Meaning
A moral or ethical consideration that restrains actions.
Example
He had no scruples about lying to get ahead.
C1 adjective /suːˈpɜːrlətɪv/

superlative

Meaning
Of the highest quality or degree; expressing the extreme form of an adjective or adverb.
Example
Her performance was superlative, earning her a standing ovation.
C2 adjective /sɪˈlæbɪk/

syllabic

Meaning
Relating to or based on syllables.
Example
The teacher explained the syllabic structure of the word.
C2 noun /ˈsɜːrfɪt/

surfeit

Meaning
an excessive amount of something
Example
There was a surfeit of food at the festival.
B1 verb /ʃaʊt/

shout

Meaning
to say something very loudly
Example
He shouted at the top of his lungs to get their attention.
C1 adjective /ˈspɑːrtn/

spartan

Meaning
showing simplicity and lack of luxury; austere
Example
He lived in a spartan room with just a bed and a chair.
B1 noun /stoʊv/

Stove

Meaning
a kitchen appliance used for cooking food by applying heat
Example
She cooked dinner on the gas stove.
C1 noun /ˈsəʊdiəm/

sodium

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.
B2 verb /swiːp/

sweep

Meaning
to clean by brushing; to move quickly and smoothly
Example
She sweeps the floor every morning.
C2 noun/verb /ˈsoʊdʒɜrn/

sojourn

Meaning
A temporary stay at a place; to stay temporarily
Example
She enjoyed a brief sojourn in Paris during the summer.
C2 noun /ˈsʌfərəns/

sufferance

Meaning
patient endurance of pain, hardship, or delay; passive consent or tolerance
Example
He lived in poverty with quiet sufferance.
A1 modal verb /ʃʊd/

should

Meaning
used to indicate obligation or duty
Example
You should study for your exams.
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.
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.
B1 noun /sleɪv/

slave

Meaning
a person who is the legal property of another and is forced to work for them
Example
The abolitionist movement fought for the rights of slaves.
B2 adjective /ˈskætərd/

Scattered

Meaning
spread widely apart; dispersed; occurring here and there
Example
Scattered showers are expected throughout the day.
C2 noun /skæd/

scad

Meaning
A type of fish of the jack family; also informally means a large number or quantity.
Example
The fisherman caught a scad in the net.
C2 noun /ˈskɔːrpiən fɪʃ/

Scorpion fish

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.
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.
C1 noun səˈsteɪ.nə.bəl tekˈnɒl.ə.dʒi

sustainable technology

Meaning
Technology designed to meet present needs without compromising future generations' ability to meet their needs.
Example
Sustainable technology ensures a cleaner future.
C2 verb /ʃiːð/

sheathe

Meaning
to put a sword or knife back into its cover
Example
He quickly sheathed his sword after the duel.
C1 noun ˌsɪstəˈmætɪk ˈseɪvɪŋz

systematic savings

Meaning
A structured and organized approach to regularly saving money according to a planned schedule
Example
Systematic savings can mitigate financial crises in old age.
B2 noun /ˈsɒlɪtjuːd/

solitude

Meaning
The state or situation of being alone.
Example
Solitude can provide the opportunity for deep reflection.
B2 noun /ˈspɒnsər/

sponsor

Meaning
a person or organization that provides funds for a project or activity in exchange for publicity or support
Example
The company became the main sponsor of the event.
B1 noun /ˈsiː.hɔːrs/

Sea-horse

Meaning
a small marine fish with segmented bony armor, an upright posture, and a curled prehensile tail
Example
The seahorse gracefully floated among the coral reefs.
B1 adverb /ˈspeʃ.əl.i/

Specially

Meaning
for a particular purpose; especially; specifically
Example
This gift was specially made for you.
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 /ˈstriːmlɪt/

streamlet

Meaning
a small stream; a tiny brook or rivulet
Example
A streamlet flowed through the meadow.
A2 noun /seɪf/

Safe

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

Sunrise

Meaning
the time in the morning when the sun appears above the horizon
Example
We watched the beautiful sunrise from the mountain top.
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.
B2 adjective /ˈspiː.di/

Speedy

Meaning
moving or happening quickly; fast
Example
The speedy delivery service arrived within an hour.
C2 noun /ˈsuːθˌseɪər/

soothsayer

Meaning
a person who claims to predict the future
Example
The king consulted a soothsayer before going to war.
C1 verb /ʃraʊd/

shroud

Meaning
to cover or hide; to wrap in cloth
Example
The mountain peak was shrouded in mist.
C1 adjective /ˌsɛm.iˈæn.ju.əl/

semiannual

Meaning
Occurring twice a year; every six months.
Example
The company holds a semiannual meeting with all employees.
C1 verb /sɪft/

sift

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.
B2 verb /sniːk/

sneak

Meaning
to move quietly and secretly to avoid being noticed
Example
He tried to sneak into the house without waking anyone.
C1 noun səˈlɪnɪti ɪnˈtruːʒən

salinity intrusion

Meaning
The movement of salt water into freshwater areas, typically affecting coastal regions.
Example
Salinity intrusion affects coastal regions.
B2 adjective /səbˈstæn.ʃəl/

Substantial

Meaning
large in size, amount, or importance; considerable; significant
Example
There was a substantial increase in sales this quarter.
B1 noun, verb /skiːm/

scheme

Meaning
a plan or arrangement, especially one that is secret or dishonest
Example
They devised a scheme to cheat investors.
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 noun ˈstræt.ɪ.dʒiz

strategies

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.
C1 adjective ˌsəʊsɪəʊpəˈlɪtɪkəl

sociopolitical

Meaning
Combining social and political factors.
Example
Sociopolitical factors often influence public policy decisions.
B2 noun/verb /ˈsoʊ.ɪŋ/

sewing

Meaning
The activity or skill of joining fabric using a needle and thread
Example
She enjoys sewing her own clothes on weekends.
C1 verb /sərˈmaɪz/

surmise

Meaning
to suppose something is true without having evidence
Example
She surmised that he was not coming to the meeting.