surveillance
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B2 noun /sɜːˈveɪ.ləns/

surveillance

Meaning
Close observation, especially of a suspected spy or criminal; continuous watching of a place, person, or situation.
Example
Government agencies conduct surveillance on cyber threats.
B2 adjective /saʊər/

Sour

Meaning
having an acid taste like lemon or vinegar; unpleasant or disagreeable
Example
The milk has gone sour and smells terrible.
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 ˌspɛk.jʊˈleɪ.ʃən

speculation

Meaning
Investment in stocks, property, or other ventures in the hope of gain but with the risk of loss.
Example
Stock market speculation can lead to high volatility.
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 noun /ˈsleɪvəri/

slavery

Meaning
the system or state of being owned and forced to work for someone else
Example
Slavery was abolished in most countries in the 19th century.
B2 adjective/noun /staʊt/

stout

Meaning
Strong, thick, or heavily built; also a kind of dark beer
Example
The stout man lifted the heavy box with ease.
B2 adjective /ˈsɪr.i.əl/

Serial

Meaning
happening in a series; consecutive; arranged in order
Example
The serial killer was finally caught after years of investigation.
B2 noun /səˈspɛnʃən/

suspension

Meaning
The act of temporarily stopping something; also refers to a system in vehicles that absorbs shock.
Example
The player received a three-game suspension for misconduct.
B2 adjective strəˈtiː.dʒɪk

strategic

Meaning
Relating to the identification of long-term or overall aims and interests and the means of achieving them.
Example
Strategic policies enhance competitiveness.
B2 adverb /ˈsɛp.ər.ət.li/

separately

Meaning
in a way that is apart or individually; not together
Example
They decided to travel separately to the conference.
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.
B2 noun ˈʃɔːtkʌmɪŋz

shortcomings

Meaning
A fault or failure to meet a certain standard; deficiencies.
Example
Institutional shortcomings affect student behavior negatively.
B2 noun ˈskeə.sɪ.ti

scarcity

Meaning
The state of being scarce or in short supply; shortage.
Example
Water scarcity threatens agriculture.
B2 noun /ˈsikwəns/

Sequence

Meaning
a particular order in which related events, movements, or things follow each other; a set of related events, movements, or things that follow each other in a particular order
Example
The dance sequence was perfectly choreographed.
B2 adjective /ˈskɪni/

Skinny

Meaning
very thin; having little flesh or fat on the body
Example
The skinny cat looked like it hadn't eaten for days.
B2 noun /ˈsʌfərɪŋ/

suffering

Meaning
the state of undergoing pain, distress, or hardship
Example
They tried to relieve his suffering with medicine.
B2 adjective səˈsteɪ.nə.bəl

sustainable

Meaning
Able to be maintained at a certain rate or level; conserving an ecological balance.
Example
Sustainable practices mitigate environmental impact.
B2 noun /səbˈmɪʃən/

submission

Meaning
the act of yielding to authority or presenting something for consideration
Example
Her submission of the report was appreciated by the manager.
B2 noun /ˈskʌlp.tʃər/

Sculpture

Meaning
the art of making objects by carving; a work of art made by carving
Example
The museum displays ancient Greek sculpture.
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.
B2 noun /ˈskaɪˌskreɪpər/

Skyscraper

Meaning
a very tall building of many stories
Example
The new skyscraper dominates the city's skyline.
B2 noun /ˈsloʊɡən/

slogan

Meaning
a short and memorable phrase used to promote a cause or product
Example
The campaign used a powerful slogan to inspire people.
B2 noun /streɪn/

Strain

Meaning
pressure or tension; excessive demand on strength or resources
Example
Working long hours put a strain on his health.
B2 noun /speɪd/

Spade

Meaning
a tool with a flat blade for digging; a playing card suit
Example
The gardener used a spade to dig holes for planting flowers.
B2 adjective /ˈstɛdi/

steady

Meaning
firm, stable, and not likely to change suddenly
Example
He kept his hand steady while painting the picture.
B2 verb /ˈsmʌɡəl/

smuggle

Meaning
to move goods illegally into or out of a country
Example
The gang tried to smuggle gold across the border.
B2 adverb /səbˈstænʃəli/

substantially

Meaning
to a great extent or degree
Example
The new policy has substantially improved working conditions.
B2 noun /ˈsuː.ɪ.saɪd/

Suicide

Meaning
the act of intentionally killing oneself
Example
Mental health professionals work to prevent suicide.
B2 verb /ˈskætər/

scatter

Meaning
to spread or throw around in different directions
Example
The wind scattered the leaves across the yard.
B2 noun /ˈsɪmptəm/

symptom

Meaning
a sign or indication of something, especially of an illness
Example
Fever is a common symptom of the flu.
B2 adjective sɪnˈθet̬.ɪk

synthetic

Meaning
Made by chemical synthesis, especially to imitate a natural product; artificial.
Example
Synthetic chemicals are used in processed foods.
B2 noun /ˈsɜːvɪŋ/

serving

Meaning
a portion of food for one person; the act of giving food or drink to someone
Example
He ate a large serving of rice and curry.
B2 adjective /ˈsɛkʃʊəl/

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.
B2 noun/verb /ˈsæd.əl/

saddle

Meaning
A seat fastened on the back of a horse for riding; to burden someone with a responsibility.
Example
He saddled the horse before going for a ride.
B2 adjective /ˈsoʊlər/

solar

Meaning
Relating to or determined by the sun
Example
The house is powered by solar energy.
B2 noun /ˈsɛsəmi sidz/

Sesame Seeds

Meaning
small edible seeds from the sesame plant used in cooking and baking
Example
Sprinkle sesame seeds on top of the bread before baking.
B2 noun /ˈsɜːr.plʌs/

surplus

Meaning
An amount that is more than what is needed.
Example
The country has a surplus of food this year.
B2 verb /sweɪ/

sway

Meaning
To move or cause to move slowly or rhythmically back and forth; to influence someone's opinion or decision.
Example
The trees swayed gently in the breeze.
B2 adjective ˈstrʌktʃərəl

structural

Meaning
Relating to or forming part of a structure.
Example
The structural integrity of the bridge was tested after the storm.
B2 noun /skrɪpt/

script

Meaning
The written text of a play, film, or broadcast; handwriting style.
Example
The actor memorized his lines from the script.
B2 adjective /ˈstʌdid/

studied

Meaning
carefully considered, deliberate, or planned
Example
Her response was calm and studied, not impulsive.
B2 noun /ˈsɪnənɪm/

Synonym

Meaning
a word or phrase that means exactly or nearly the same as another word or phrase in the same language
Example
Happy and joyful are synonyms.
B2 noun /ˈstiː.mər/

Steamer

Meaning
a ship or boat powered by steam engines
Example
The old steamer crossed the river slowly.
B2 verb /ʃrʌɡ/

shrug

Meaning
To raise and lower the shoulders to express uncertainty or indifference.
Example
He shrugged when asked about the missing file.
B2 adjective /səˈraʊndɪŋ/

surrounding

Meaning
located all around a particular place or thing; nearby
Example
The surrounding hills were covered in mist.
B2 adverb /ˈʃɑːrpli/

sharply

Meaning
suddenly and strongly; in a cutting or intense way
Example
Prices rose sharply after the announcement.
B2 noun /ˈsɪɡ.nə.tʃər/

Signature

Meaning
a person's name written in their own handwriting as identification or authorization
Example
Please put your signature at the bottom of the document.
B2 adverb /ˈskeəs.li/

Scarcely

Meaning
hardly; barely; only just
Example
I could scarcely believe my eyes.
B2 verb /ˈskroʊlɪŋ/

scrolling

Meaning
Moving through content on a screen by sliding up or down.
Example
Scrolling through feeds wastes a lot of time.
B2 noun /spæn/

span

Meaning
the full extent or length of something from one end to another
Example
The bridge has a span of over 500 meters.
B2 adjective /ˈslʌɡ.ɪʃ/

Sluggish

Meaning
slow-moving; lacking energy or alertness; inactive
Example
The old computer became sluggish after running for hours.
B2 adjective /ˌsuː.pəˈnætʃ.ər.əl/

Supernatural

Meaning
relating to things that cannot be explained by natural or scientific laws; beyond the normal or physical world
Example
The old house was said to have supernatural powers.
B2 verb /səˈluːt/

salute

Meaning
to greet with respect; to honor
Example
The soldiers saluted their commanding officer.
B2 noun smɔːl ˈɛfərt

Small Effort

Meaning
Minor actions or initiatives that can collectively make a significant impact.
Example
Small efforts can bring big changes in butterfly conservation.
B2 verb /ˈsʌmən/

summon

Meaning
To order someone to come or to gather courage or strength.
Example
The king summoned his advisors to the court.
B2 noun /səkˈses.ər/

Successor

Meaning
a person who succeeds another in office; someone who takes over a position or role
Example
The CEO announced his retirement and named his successor for the company.
B2 noun /ˈspəʊkswɪmən/

spokeswoman

Meaning
a woman who speaks on behalf of a group or organization
Example
The spokeswoman for the company announced the new product.
B2 noun/verb /stʌnt/

stunt

Meaning
a daring or unusual action performed for entertainment or publicity; to hinder growth or development
Example
The actor performed a dangerous stunt in the movie.
B2 noun ˈsiːzənəl ˈvedʒtəbəlz

seasonal vegetables

Meaning
Vegetables that grow during specific seasons or times of the year
Example
Seasonal vegetables grow abundantly in winter.
B2 noun /ˈskɒl.ər/

Scholar

Meaning
a person who has studied a subject for a long time and knows a lot about it; an academic
Example
The renowned scholar published several books on ancient history.
B2 adjective /steɪl/

Stale

Meaning
no longer fresh; lacking originality or novelty
Example
The bread became stale after sitting out for three days.
B2 verb /ˈsuːpərvaɪz/

supervise

Meaning
to watch and direct a person or activity to ensure things are done correctly
Example
The teacher supervises students during the exam.
B2 noun /ˈsɛnsər/

sensor

Meaning
a device that detects or measures a physical property and records, indicates, or responds to it
Example
The motion sensor turned on the light automatically.
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.
B2 noun /stjuːˈpɪdəti/

stupidity

Meaning
lack of intelligence or common sense
Example
His stupidity caused a lot of problems for the team.
B2 adjective, verb (past) /səˈspɛndɪd/

suspended

Meaning
Temporarily not allowed, stopped, or hanging.
Example
He was suspended from school for a week.
B2 noun /sɪv/

Seive

Meaning
a utensil consisting of a wire or plastic mesh held in a frame, used for straining solids from liquids
Example
She used a sieve to separate the flour from lumps.
B2 noun /ˈstæm.ɪ.nə/

Stamina

Meaning
the ability to sustain prolonged physical or mental effort
Example
Marathon runners need great stamina to complete the race.
B2 noun /skoʊp/

scope

Meaning
the range of one's perception, understanding, or activity
Example
The project is beyond the scope of our resources.
B2 adverb /ˈstɛdɪli/

steadily

Meaning
in a regular and continuous way; without stopping or changing
Example
The company's profits have been increasing steadily.
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.
B2 adjective /ˈsɜːdʒɪkəl/

surgical

Meaning
relating to or involving surgery
Example
She underwent surgical treatment to repair the damage.
B2 noun /səˈnɛərioʊ/

scenario

Meaning
a possible situation or sequence of events
Example
The company prepared for the worst-case scenario.
B2 adverb /ˈsel.fɪʃ.li/

Selfishly

Meaning
in a selfish manner; caring only about oneself
Example
He selfishly took all the cookies.
B2 noun /ˈsɪmpəθi/

Sympathy

Meaning
feelings of pity and sorrow for someone else's misfortune
Example
She expressed her sympathy for the victims of the accident.
B2 adjective /ˈsɛksi/

sexy

Meaning
sexually attractive or exciting
Example
She wore a sexy red dress to the party.
B2 adjective /swɪft/

swift

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

swarm

Meaning
A large group of insects or people moving together.
Example
A swarm of bees surrounded the tree.
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.
B2 verb /stɪtʃ/

stitch

Meaning
to sew with needle and thread; to join pieces of fabric
Example
She will stitch the torn dress carefully.
B2 noun /ˌsɛlf rɪˈspɛkt/

self-respect

Meaning
A feeling of pride and confidence in oneself; self-worth.
Example
She refused to compromise her self-respect by accepting unfair treatment.
B2 verb /ˈʃɔːrtn/

shorten

Meaning
To make something shorter in length, duration, or extent
Example
She decided to shorten her speech to fit the time limit.
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 /ˈset.əl.mənt/

Settlement

Meaning
a place where people establish a community; an agreement that ends a dispute
Example
The early settlement was built near the river for easy access to water.
B2 noun /ˈsɪmbəl/

Symbol

Meaning
a mark or character used as a conventional representation of an object, function, or process
Example
The dove is a symbol of peace.
B2 adverb /sɪˈvɪərli/

severely

Meaning
to a great degree; very seriously or harshly
Example
The patient was severely injured in the accident.
B2 adjective /ˈspɛʃəˌlaɪzd/

specialized

Meaning
designed or developed for a particular purpose or function
Example
He has a specialized knowledge of ancient civilizations.
B2 noun ˈsɪblɪŋz

Siblings

Meaning
Each of two or more children or offspring having one or both parents in common.
Example
Siblings are usually placed on the same level in a family tree.
B2 verb /ˈskræmbəl/

scramble

Meaning
to move or climb quickly using hands and feet; to mix or arrange in a hurried way
Example
The kids scrambled up the hill to catch the kite.
B2 adjective /ˈsɒl.ɪ.ter.i/

Solitary

Meaning
alone; without companions; single; isolated
Example
He lived a solitary life in the mountains.
B2 noun /ˈʃɔːr.tɪdʒ/

Shortage

Meaning
a lack or deficiency of something that is needed or expected
Example
There is a severe water shortage in the region.
B2 adjective, noun /ˈsɪŋɡjələr/

singular

Meaning
Remarkable, extraordinary; or grammatical form referring to one person or thing.
Example
She has a singular talent for painting.
B2 adjective /ˈʃeɪm.fəl/

Shameful

Meaning
causing shame; disgraceful; embarrassing
Example
His shameful behavior embarrassed the entire family.
B2 verb /spreɪ/

spray

Meaning
to apply liquid to something in a fine mist
Example
She sprayed perfume on her wrist before leaving.
B2 adjective /ˈstaɪ.lɪʃ/

Stylish

Meaning
fashionable and attractive; having elegance or taste in appearance
Example
She wore a stylish dress to the party.
B2 adjective /ˈʃæl.oʊ/

Shallow

Meaning
not deep; superficial; lacking depth of knowledge
Example
The shallow water is perfect for children to play.
B2 verb səˈsteɪnd

sustained

Meaning
Strengthened and supported; not allowed to weaken or fail.
Example
The proposal was not sustained.
B2 noun ˌsensɪˈtɪvɪti

sensitivity

Meaning
The quality or condition of being sensitive; responsiveness to stimuli.
Example
Bose proved plant sensitivity through experiments.
B2 verb /spɛər/

spare

Meaning
To give something that one has extra of; to refrain from harming or killing.
Example
Could you spare me a few minutes of your time?
B2 noun, verb /sɪn/

sin

Meaning
an immoral act considered to be a transgression against divine law; to commit an offense against religious or moral law
Example
He confessed his sin to the priest.
B2 noun ˈskruːtɪni

scrutiny

Meaning
Critical observation or examination
Example
The new law is under scrutiny by the legislative body.
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 noun /ˈsɑːrdʒənt/

sergeant

Meaning
A rank of non-commissioned officer in the armed forces or police.
Example
The sergeant gave orders to the soldiers before the mission.
B2 adjective /ˈstɑːrtəld/

startled

Meaning
suddenly shocked or surprised by something unexpected
Example
She was startled by the loud noise outside.
B2 adjective /ˈstɪki/

sticky

Meaning
having the quality of adhering or clinging; difficult to remove or deal with
Example
The candy is too sticky to eat with your hands.
B2 adjective /ˈsoʊpi/

Soapy

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

symbolic

Meaning
serving as a symbol or representing something else
Example
The dove is symbolic of peace and freedom.
B2 noun /skʌl/

Skull

Meaning
the bony framework of the head that protects the brain
Example
The doctor examined the skull X-ray carefully.
B2 noun /ˈʃəʊ.keɪs/

showcase

Meaning
A display case or exhibition; to present something in an attractive or favorable way.
Example
The exhibition showcased the artist's best works.
B2 verb, noun /ʃeɪv/

shave

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.
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.
B2 noun ˈsəʊ.lər ˈen.ə.dʒi

solar energy

Meaning
Energy from the sun that is converted into thermal or electrical energy.
Example
Solar energy is vital for reducing carbon emissions.
B2 noun/verb /ˈsɜːveɪ/

survey

Meaning
noun: an examination or inspection; verb: to examine or measure (an area or subject)
Example
They conducted a survey to understand customer preferences.
B2 verb, noun /stæb/

stab

Meaning
to pierce or wound with a pointed weapon or object
Example
He was stabbed in the back during the altercation.
B2 verb /ʃriːk/

shriek

Meaning
to make a loud, high-pitched cry
Example
She shrieked when she saw the spider.
B2 verb /skriːtʃ/

screech

Meaning
to make a loud, high-pitched and unpleasant sound
Example
The car screeched to a halt.
B2 adjective /ˈsʌb.sɪ.kwənt/

subsequent

Meaning
Coming after something in time; following in time or order.
Example
Subsequent events clarified the outcomes.
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 /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.
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.