slacken
All a b c d e f g h i j k l m n o p q r s t u v w x y z
All CEFR A1 A2 B1 B2 C1 C2
Content locale
EN English BN Bengali HI Hindi ES Spanish FR French DE German RU Russian ZH Chinese JA Japanese
All Vocabulary Cards All Vocabularies
C1 verb /ˈslækən/

slacken

Meaning
to make or become less tight, less active, or slower
Example
The driver slackened his speed as he approached the village.
C1 noun /ʃoʊl/

shoal

Meaning
a large group of fish swimming together; a shallow place in water
Example
We saw a shoal of fish near the coast.
B2 noun /stɔːrk/

Stork

Meaning
large wading bird with long legs and a long neck
Example
The stork built its nest on top of the tall chimney.
A2 adverb /ˈseɪf.li/

Safely

Meaning
in a safe manner; without danger or risk
Example
Drive safely on the icy road.
B1 noun /skriːn/

Screen

Meaning
a flat surface on which pictures or words are shown; a movable partition used to divide a room
Example
The movie was displayed on a large screen in the theater.
C1 verb/noun /ˈsɒldər/

solder

Meaning
To join metal parts together by melting and putting a filler metal into the joint
Example
He soldered the broken wires back together.
C2 noun /strəˈmoʊ.ni.əm ˌflaʊ.ər/

Stramonium flower

Meaning
A trumpet-shaped white or purple flower from the jimsonweed plant, known for its toxic properties
Example
The stramonium flower blooms at night with a sweet fragrance.
A1 verb /send/

send

Meaning
to cause something to go or be taken to a particular destination; to transmit
Example
I will send you an email with the details.
C1 noun ˈstræt.ə.sfɪər

stratosphere

Meaning
The layer of the earth's atmosphere above the troposphere, extending to about 50 km above the earth's surface.
Example
The stratosphere provides a unique environment.
C2 adjective ˌsʌr.əpˈtɪʃ.əs

surreptitious

Meaning
Kept secret, especially because it would not be approved of; done stealthily.
Example
She took a surreptitious glance at his notes.
A1 verb /sel/

sell

Meaning
to give something to someone in exchange for money
Example
They sell fresh fruits at the market.
C2 noun /spʌndʒ ɡɔːrd/

Sponse gourd

Meaning
a fibrous gourd that becomes sponge-like when dried, used for cleaning and in cooking when young
Example
The sponge gourd can be eaten when young or dried to make natural scrubbers.
C2 adjective /sɪˈnæp.tɪk/

synaptic

Meaning
Related to the signal transmission process between nerve cells.
Example
Learning strengthens synaptic connections in the brain.
C1 noun /ˈstɪklər/

stickler

Meaning
a person who insists on a certain quality or standard of behavior
Example
He is a stickler for punctuality and never tolerates delays.
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.
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.
B2 noun speɪs ɪksplɔːˈreɪʃən

space exploration

Meaning
The investigation of outer space by means of manned and unmanned spacecraft.
Example
Space exploration has expanded our knowledge of the universe.
C2 noun /staɪn/

stein

Meaning
A large beer mug, typically made of glass or stoneware.
Example
He raised his stein to toast his friends.
B2 noun /ˈsliːpər/

sleeper

Meaning
a person or thing that sleeps; something that unexpectedly succeeds
Example
The movie turned out to be a real sleeper hit.
B2 noun /ˈsɜːdʒən/

surgeon

Meaning
a doctor who performs medical operations
Example
The surgeon performed a complex heart operation.
B1 noun /ˈsɪɡ.nəl/

Signal

Meaning
a gesture, action, or sound that conveys information or instruction
Example
The traffic signal turned red, so we stopped.
B1 noun /ˈsteɪtəs/

status

Meaning
the social or professional position or condition of someone or something
Example
His social status improved after the promotion.
B2 verb /skwiːz/

squeeze

Meaning
to press something firmly, especially from all sides in order to extract or compress it
Example
She squeezed the toothpaste to get the last bit.
C1 adjective /sɪˈmɛtrɪkəl/

symmetrical

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.
C2 noun /sʌbˈɔːl.tən/

subaltern

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.
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.
A1 noun /snoʊ/

Snow

Meaning
white frozen water that falls from clouds as soft flakes
Example
The children played happily in the fresh snow.
C1 noun /ˈsɜːrəɡət/

surrogate

Meaning
A substitute, especially a person deputizing for another in a specific role or office.
Example
The surrogate mother gave birth to the child after carrying it for nine months.
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.
C1 verb /ʃɪə/

shear

Meaning
to cut the wool off a sheep or to cut something with sharp tools like scissors or shears
Example
The farmer will shear the sheep in the spring.
C2 adjective /ˈsɛpərəbəl/

separable

Meaning
Capable of being separated or divided.
Example
The two issues are separable and should be discussed independently.
C1 noun /ˈsɒl.ɪs/

Solace

Meaning
comfort or consolation in a time of distress or sadness
Example
She found solace in music after her loss.
C2 noun /spɪˈlʌŋkər/

spelunker

Meaning
A person who explores caves as a hobby.
Example
The spelunker carried ropes and lights into the dark cave.
B2 adjective /ˈskætərd/

Scattered

Meaning
spread widely apart; dispersed; occurring here and there
Example
Scattered showers are expected throughout the day.
B2 verb /səbˈmɪt/

submit

Meaning
to present for consideration; to surrender; to yield
Example
Please submit your assignment by Friday.
A2 verb /saɪn/

sign

Meaning
to write your name on something to show agreement or approval; to make a gesture with meaning
Example
Please sign the contract at the bottom of the page.
A1 verb /spend/

spend

Meaning
to use money to buy something; to pass time
Example
I spend too much money on books.
C2 noun /ˈsʊrmə fɪʃ/

Surma fish

Meaning
a freshwater fish species found in the Surma river system of Bangladesh and northeastern India
Example
Surma fish is native to the rivers of Sylhet region.
B2 adjective /ˈstraɪkɪŋ/

striking

Meaning
very noticeable or impressive in appearance or effect
Example
Her striking beauty caught everyone's attention.
C1 noun /ˈstjuːpər/

stupor

Meaning
a state of near-unconsciousness or insensibility
Example
He remained in a stupor after hearing the shocking news.
B2 adverb /ˈstɛdɪli/

steadily

Meaning
in a regular and continuous way; without stopping or changing
Example
The company's profits have been increasing steadily.
B1 adverb /sɪɡˈnɪfɪkəntli/

significantly

Meaning
in a way that is large or important enough to have an effect
Example
The economy has significantly improved over the last decade.
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 noun /ˈskæf.əld/

Scaffold

Meaning
a temporary structure used by workers to stand on when building or repairing something high; a platform for execution
Example
The workers erected a scaffold to paint the building's exterior.
B2 noun /sɪnˈserɪti/

Sincerity

Meaning
the quality of being free from pretense or deceit; honesty
Example
His sincerity in apologizing was evident to everyone.
C1 adjective /ˌsuː.pəˈsɒn.ɪk/

Supersonic

Meaning
faster than the speed of sound; relating to speeds greater than the speed of sound
Example
The supersonic jet broke the sound barrier.
C1 adjective ˌsɪn.əˈdʒɪs.tɪk

synergistic

Meaning
Relating to the interaction of elements that when combined produce a greater effect than the sum of their individual effects.
Example
A synergistic effect occurs when nutrients work together.
C2 noun /ˈsælvər/

salver

Meaning
A tray, typically made of silver, used for serving food or drinks.
Example
The butler brought in the tea on a silver salver.
B2 adjective /ˈʃæb.i/

Shabby

Meaning
worn out; in poor condition; showing signs of wear; unfair or mean
Example
His shabby clothes showed that he had been traveling for days.
C2 noun /ˌskʌlˈdʌɡəri/

skullduggery

Meaning
dishonest behavior or activities, often done secretly
Example
The election was full of political skullduggery.
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 /skɪt/

skit

Meaning
a short, humorous performance or piece of writing
Example
The students performed a funny skit at the event.
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.
C2 noun /ˈsʌfərəns/

sufferance

Meaning
patient endurance of pain, hardship, or delay; passive consent or tolerance
Example
He lived in poverty with quiet sufferance.
B2 noun /ˈspɔːrtsmən/

sportsman

Meaning
A person who is skilled in sports or enjoys participating in athletic activities.
Example
He is a true sportsman, always fair and respectful to his opponents.
C1 adjective /ˈsaɪt.ləs/

Sightless

Meaning
unable to see; blind; lacking vision
Example
The sightless man navigated the street with his guide dog.
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.
A1 noun /sʌn/

Sun

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.
B2 adjective /ˈʃeɪ.ki/

Shaky

Meaning
unstable; trembling; unreliable; weak
Example
His voice was shaky with nervousness.
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 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.
B2 adverb /səˈpəʊzɪdli/

supposedly

Meaning
used to show that something is believed or claimed to be true, though it may not be
Example
He is supposedly the best player on the team.
A2 noun/verb /ˈsiːzən/

season

Meaning
One of the four periods of the year characterized by specific weather conditions; also, to add flavor to food.
Example
Spring is my favorite season of the year.
B2 noun /səkˈsɛʃ.ən/

succession

Meaning
The process of ecological change in which one community of organisms is gradually replaced by another.
Example
Forest succession occurs when old ecosystems are replaced by new ones.
A1 adjective /ʃʊr/

Sure

Meaning
completely confident that something is true; certain; definitely true
Example
I am sure that he will come tomorrow.
C2 adjective /ˈstɜːr.tər.əs/

stertorous

Meaning
Characterized by heavy snoring or breathing.
Example
The patient’s stertorous breathing alarmed the nurses.
B2 verb /stæk/

stack

Meaning
to arrange things in a neat pile or one on top of another
Example
He stacked the books neatly on the shelf.
C1 verb /ˈsætʃəˌreɪt/

saturate

Meaning
to fill completely with something until no more can be absorbed
Example
The heavy rain saturated the ground within minutes.
C2 noun /ˈsfɛrɔɪd/

spheroid

Meaning
A three-dimensional shape that is almost spherical but slightly flattened or elongated.
Example
The Earth is not a perfect sphere but an oblate spheroid.
B2 adverb /sɪˈvɪərli/

severely

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

Stiff

Meaning
not easily bent or changed; rigid; firm
Example
The old wooden board was too stiff to bend.
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.
B1 verb /səˈspɛkt/

suspect

Meaning
to believe that someone has done something wrong; to doubt or mistrust
Example
I suspect he is lying about his whereabouts.
B2 noun /stɑːr fɪʃ/

Star fish

Meaning
a marine echinoderm with five or more radiating arms, typically found on the sea floor
Example
The starfish slowly moved across the ocean floor searching for food.
B2 adjective /ˈstʌdid/

studied

Meaning
carefully considered, deliberate, or planned
Example
Her response was calm and studied, not impulsive.
A2 noun /ʃɪp/

Ship

Meaning
a large watercraft that travels the world's oceans and seas
Example
The cargo ship departed from the port at dawn.
C2 noun /ˈsɪkəfənt/

sycophant

Meaning
A person who acts obsequiously toward someone important in order to gain advantage.
Example
The manager was surrounded by sycophants who agreed with everything he said.
B2 noun /ˌsɛlf əˈwɛə.nəs/

self-awareness

Meaning
Conscious knowledge of one's own character, feelings, motives, and desires.
Example
Self-awareness helps in understanding one's emotions and actions.
B1 noun /ˈspɛndɪŋ/

spending

Meaning
the act of paying money for goods or services
Example
Her spending on clothes was higher than expected.
B1 noun /ˈslɪpər/

Slipper

Meaning
light, comfortable shoe without a back, worn indoors
Example
She put on her slippers before walking around the house.
C2 noun /sɜːrˈsiːs/

surcease

Meaning
a temporary or final ending or stopping of something
Example
The noise finally came to a surcease after midnight.
C2 adjective /ˈsɪŋkəˌpeɪtɪd/

syncopated

Meaning
Characterized by displaced beats or rhythms, especially in music.
Example
The jazz piece had a syncopated rhythm that energized the crowd.
B2 verb /slæp/

slap

Meaning
to hit someone quickly with the flat part of the hand; to strike sharply
Example
She was so angry that she slapped him across the face.
B2 verb /soʊk/

soak

Meaning
to make something completely wet by immersing it in liquid
Example
She soaked the clothes in water before washing them.
C2 adjective /stɛnˈtɔːriən/

stentorian

Meaning
Extremely loud and powerful in sound.
Example
The teacher’s stentorian voice quieted the noisy classroom.
C2 adjective /ˈsæ.loʊ/

sallow

Meaning
Of an unhealthy yellow or pale brown color, often referring to skin.
Example
His sallow complexion made him look tired and sickly.
A2 noun /ˈswɛtər/

sweater

Meaning
a warm knitted piece of clothing worn on the upper body
Example
She wore a red sweater to keep warm in the cold weather.
B1 noun /soʊl/

Soul

Meaning
the spiritual or immaterial essence of a human being or animal; a person's emotional or intellectual nature
Example
She poured her heart and soul into her artwork.
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.
C1 adjective /ˈskɪtɪʃ/

skittish

Meaning
easily frightened or nervous; unpredictable
Example
The horse was too skittish to ride.
B1 noun /ˈseɪ.vɪŋz/

savings

Meaning
Money that is saved, especially in a bank or official scheme for future use.
Example
Many people invest their savings in real estate.
B2 noun /sɔːrd/

Sword

Meaning
a weapon with a long metal blade and a handle, used for fighting
Example
The knight drew his sword to defend the castle.
B2 noun /ˈskɛlɪtən/

skeleton

Meaning
The internal framework of bones that supports the body of a human or animal.
Example
The teacher showed the students a human skeleton in the biology class.
C1 verb /səbˈsɪst/

subsist

Meaning
To maintain or support oneself, especially at a minimal level.
Example
Many villagers still subsist on fishing and farming.
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.
A1 adjective /ˈsɪmpəl/

Simple

Meaning
easy to understand or do; not complicated
Example
This is a simple recipe that anyone can follow.
B2 verb /səʊ/

sew

Meaning
to join pieces of fabric or material together using a needle and thread
Example
She learned to sew her own clothes at an early age.
A1 noun /sɛpˈtɛmbər/

september

Meaning
The ninth month of the year in the Gregorian calendar
Example
My birthday is in September, and I always celebrate it with friends.
C2 noun /ˌsɪnjuˈɒsɪti/

sinuosity

Meaning
The quality or state of being winding, curving, or having many turns.
Example
The sinuosity of the river made navigation challenging.
C1 noun /ˌsæl.ɪ.naɪˈzeɪ.ʃən/

salinization

Meaning
The process of increasing salt content in soil.
Example
Excessive irrigation can cause salinization of farmland.
C1 noun /ˈsteɪ.ʃən.ər/

Stationer

Meaning
a person who sells paper, pens, pencils, and other office supplies
Example
The stationer recommended the best pens for writing exams.
A1 adverb /soʊ/

so

Meaning
to such a degree or extent
Example
She was so happy with the gift.
A2 adjective /ˈsɪr.i.əs/

Serious

Meaning
thoughtful; grave; requiring careful consideration; not joking
Example
This is a serious matter that needs immediate attention.
C1 verb /swɜːrv/

swerve

Meaning
to change direction suddenly, especially to avoid hitting something
Example
The car swerved to avoid the dog.
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.
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.
B2 noun ˈsæt.əl.aɪt

satellite

Meaning
An artificial object which has been intentionally placed into orbit around a celestial body.
Example
Satellites provide critical data for research.
C1 adjective /ˈstrɛnjuəs/

strenuous

Meaning
Requiring or using great effort and energy.
Example
Climbing the mountain was a strenuous task.
C1 adjective /stiːpt/

steeped

Meaning
Completely surrounded by or filled with a particular quality, influence, or experience.
Example
The town is steeped in history and tradition.
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 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.
B1 verb /səˈraʊnd/

surround

Meaning
To be all around someone or something.
Example
Mountains surround the small village.
B2 noun /ˌspɛsɪfɪˈkeɪʃən/

specification

Meaning
a detailed description or assessment of something
Example
The product specification includes all the necessary details.
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 noun /ʃruː/

shrew

Meaning
a small mouse-like animal; also a woman with a bad temper
Example
The play describes a strong-willed woman as a shrew.
A2 noun /stɛps/

steps

Meaning
A measure or action, especially one of a series taken in order to deal with or achieve a particular thing.
Example
Taking small steps reduces overwhelm.
B2 noun /skwɒd/

squad

Meaning
a small group of people organized for a specific purpose or task, often in the military or sports
Example
The football squad trained hard before the championship match.
C1 noun /ˈʃeɪvɪŋ/

shaving

Meaning
the act of removing hair with a razor; a thin strip or piece shaved from something
Example
He bought a new cream for shaving.
B2 adjective /ˈsteɪʃəˌneri/

stationary

Meaning
Not moving or not intended to be moved.
Example
The car remained stationary at the red light.
C1 noun ˈsʌfrɪdʒ

suffrage

Meaning
The right to vote in political elections; the principle of political representation.
Example
Universal suffrage was a key demand.
B2 verb /swaɪp/

swipe

Meaning
to move your finger across a touch screen or to hit with a sweeping motion
Example
He swiped left on the photo.