classroom
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A2 noun /ˈklæsˌruːm/

classroom

Meaning
A room in which classes are held in a school or college.
Example
The teacher entered the classroom and greeted the students.
C1 noun /ˌkɒn.təmˈpleɪ.ʃən/

contemplation

Meaning
The action of looking thoughtfully at something for a long time; deep reflective thought.
Example
She sat in contemplation before making her decision.
B1 verb /kənˈvɜːrt/

convert

Meaning
to change from one form to another; to transform
Example
We can convert this room into an office.
A2 noun /ˈkɜːr.tən/

Curtain

Meaning
a piece of material suspended at the top to form a covering or screen, typically movable sideways
Example
She drew the curtains to block out the bright sunlight.
B1 noun /ˈsiːlɪŋ/

ceiling

Meaning
the upper interior surface of a room
Example
The ceiling of the hall was painted beautifully.
A2 noun /ˈkælɪndər/

calendar

Meaning
a system for organizing days, months, and years; a chart showing days of the year
Example
She marked her birthday on the calendar.
C1 verb /kriːk/

creak

Meaning
to make a high-pitched, squeaking noise when moved
Example
The old door creaked as she opened it.
C2 verb /ˌkaʊntərˈveɪl/

countervail

Meaning
to offset or counteract the effect of something
Example
The benefits of the new policy countervail its drawbacks.
C1 adverb kəmˈpæktli

compactly

Meaning
In a closely packed or dense manner.
Example
Protons and neutrons are compactly arranged.
C1 noun /ˈkɒn.vɔɪ/

convoy

Meaning
a group of vehicles or ships traveling together, often for protection
Example
The military convoy moved through the desert at dawn.
B2 noun /kəˈdɛt/

cadet

Meaning
A young trainee in the armed forces, police, or other organization.
Example
The cadet marched proudly in the parade.
B2 verb /kɜːrb/

curb

Meaning
to restrain, control, or limit something
Example
The government took steps to curb inflation.
B2 verb /koʊˈɔːrdɪˌneɪt/

coordinate

Meaning
to organize people or things so that they work together effectively
Example
We need to coordinate our efforts to finish the project on time.
C2 verb /kənˈvʌls/

convulse

Meaning
to shake violently; to suffer sudden involuntary contractions
Example
The patient convulsed during the seizure.
C1 adjective,noun /kənˈtɪn.dʒənt/

contingent

Meaning
dependent on something else; a group of people representing an organization
Example
Attendance is contingent on prior registration. / A contingent of students attended the conference.
C1 verb /kənˈtraɪv/

contrive

Meaning
to plan or devise cleverly or skillfully
Example
She contrived a clever plan to surprise her friends.
C1 noun /kənˈtɪnjuəm/

continuum

Meaning
A continuous sequence in which adjacent elements are not perceptibly different from each other, but the extremes are quite distinct.
Example
Life and death are often seen as part of the same continuum.
C1 noun /ˈsɛtərə/

cetera

Meaning
Latin for 'the rest' or 'others'; commonly used in the phrase 'et cetera' meaning 'and so on'.
Example
We need to buy pens, paper, notebooks, et cetera.
C1 noun /ˈkælkjʊləs/

calculus

Meaning
A branch of mathematics concerned with rates of change and accumulation; also a hard mineral deposit in the body such as on teeth.
Example
Calculus is essential for advanced studies in physics and engineering.
A2 verb kriˈeɪts

creates

Meaning
To bring something into existence or to cause something to happen
Example
Pollution creates environmental and health issues.
C2 noun /ˈkærɪt/

caret

Meaning
A proofreading symbol (^) used to indicate where something should be inserted.
Example
The editor placed a caret to show where the missing word should go.
C2 adjective /ˈkrɒtʃ.ə.ti/

crotchety

Meaning
bad-tempered, easily annoyed, and often complaining
Example
The crotchety old man yelled at the children for playing near his house.
A2 verb kriˈeɪt

create

Meaning
To bring something into existence; to make or produce something new.
Example
Unmanaged growth can create complex challenges.
B2 noun/verb /sɪˈmɛnt/

cement

Meaning
a powdery substance that binds materials together; to make something strong or permanent
Example
The treaty helped cement the relationship between the two countries.
B2 noun /kəˈlɑːʒ/

collage

Meaning
A piece of art made by sticking various materials such as photographs or paper onto a surface.
Example
She created a collage using old magazine pictures.
C1 noun /klæn/

clan

Meaning
a large family group or a close-knit community with shared interests or ancestry
Example
The entire clan gathered to celebrate the festival.
A2 verb /kaʊnt/

count

Meaning
to determine the total number of something
Example
She carefully counted the money on the table.
C2 noun /ˌkəʊ.əˈles.əns/

coalescence

Meaning
The process of coming together to form one mass or whole.
Example
The coalescence of different cultures creates diversity.
C1 verb /ˌkaʊntərˈækt/

counteract

Meaning
to act against something in order to reduce its effect
Example
The medicine helps counteract the side effects of the treatment.
B2 noun /ˈkʌmbæk/

comeback

Meaning
A return to a former status or success after a period of decline.
Example
The singer made a remarkable comeback after years of silence.
B1 noun /ˈkærɪdʒ/

carriage

Meaning
a vehicle, typically a four-wheeled one, used for transporting goods or people, especially in the past
Example
The royal family traveled in a beautiful carriage during parades.
C1 noun /ˌkɒnstəˈneɪʃən/

consternation

Meaning
A feeling of anxiety, dismay, or confusion, often caused by something unexpected.
Example
The sudden announcement caused widespread consternation among the employees.
C1 adjective ˈklaɪ.mət rɪˈzɪl.i.ənt

climate-resilient

Meaning
Able to cope with the adverse effects of climate change; sustainable and adaptable.
Example
Climate-resilient crops can survive extreme weather conditions.
B2 noun /ˈkloʊʒər/

closure

Meaning
the action or process of closing something, or the sense of finality or resolution.
Example
The closure of the company left many employees without jobs.
B1 verb /tʃuː/

chew

Meaning
to bite food into smaller pieces with your teeth before swallowing it
Example
You should chew your food properly to help with digestion.
C2 noun /ʃəˈɡrɪn/

chagrin

Meaning
Distress or embarrassment at having failed or been humiliated.
Example
She left the room in chagrin after forgetting her lines.
C1 adjective /koʊˈɜːrsɪv/

coercive

Meaning
Relating to or using force or threats to make someone do something.
Example
The government faced criticism for adopting coercive measures against protestors.
B2 verb /kloʊð/

clothe

Meaning
to put clothes on; to dress; to provide with clothing
Example
She clothed the baby in warm garments.
C2 noun /ʃɪˈkeɪnəri/

chicanery

Meaning
The use of trickery or deception to achieve a purpose.
Example
The politician was accused of chicanery to win the election.
C2 noun /krɪpˈtɒɡ.rə.fi/

cryptography

Meaning
The practice of securing information through encryption or coding techniques
Example
Modern cryptography ensures secure online transactions.
C1 noun kəˈlæt.ər.əl

collateral

Meaning
Something pledged as security for repayment of a loan, to be forfeited in the event of a default.
Example
The bank requires collateral for loan approval.
A1 verb, adjective /kloʊz/ (verb), /kloʊs/ (adjective)

close

Meaning
To shut something (verb); near in space or relationship (adjective).
Example
Please close the door when you leave.
B2 noun /kɜːrl/

Curl

Meaning
a piece of hair that curves or coils; something with a spiral or curved shape
Example
She had beautiful natural curls that framed her face perfectly.
B1 noun /kriˈeɪ.ʃən/

Creation

Meaning
the action or process of bringing something into existence; something that has been made or invented
Example
The artist's latest creation was displayed at the modern art gallery.
B2 noun /ˈkɒmpɪtəns/

competence

Meaning
the ability to do something successfully or efficiently
Example
Her competence as a manager impressed the board.
C2 noun /səˈlɛrɪti/

celerity

Meaning
swiftness of movement; speed
Example
The soldier moved with great celerity to deliver the message.
B2 adjective /ˈkrɛd.ɪ.bəl/

credible

Meaning
able to be believed; convincing
Example
Her explanation was credible enough to convince the committee.
C2 noun /ˈkriːdoʊ/

credo

Meaning
A statement of the beliefs or aims that guide someone's actions.
Example
Honesty has always been the central credo of his life.
A2 adjective /ˈsɛntrəl/

central

Meaning
Situated in the middle; of the greatest importance.
Example
Water is central to human survival.
C1 adjective /kræs/

crass

Meaning
lacking sensitivity, refinement, or intelligence
Example
His crass remarks offended everyone at the meeting.
C1 adjective /kənˈɡrɛʃənl/

congressional

Meaning
relating to a congress, especially the US Congress
Example
The bill received strong congressional support.
B2 noun /kənˈfɛkʃəneri/

confectionery

Meaning
sweets, candies, and other food items made with sugar
Example
The shop sells a wide variety of confectionery.
C1 noun /kənˈvʌl.ʃən/

convulsion

Meaning
a sudden, violent, involuntary contraction of muscles; a seizure
Example
The medicine helped prevent convulsions in children.
C2 noun /ˌkɒnfəˈriː/

conferee

Meaning
a person who takes part in a conference
Example
Each conferee received a badge at the registration desk.
B2 noun /kəmˈplaɪ.əns/

compliance

Meaning
The practice of conforming to rules, regulations, or laws; obedience to orders or instructions.
Example
Schools expect compliance with their rules and policies.
A2 noun /ˈkɑr.pɪt/

Carpet

Meaning
a floor covering made from thick woven fabric
Example
The Persian carpet in the living room was a family heirloom.
C2 verb /ˈsɜːrkəmskraɪb/

circumscribe

Meaning
to limit or restrict something within boundaries
Example
The rules circumscribe the powers of the committee.
B2 adjective /ˌkɒn.fɪˈden.ʃəl/

Confidential

Meaning
secret; private; intended to be kept secret
Example
Please keep this information confidential.
C2 noun /kɒzˈmɒɡ.rə.fi/

cosmography

Meaning
the science or art of mapping the universe or cosmos
Example
Medieval scholars practiced cosmography to chart the stars and planets.
C1 adjective /koʊˈɪnsɪdənt/

coincident

Meaning
Occurring at the same time; occupying the same position in space or time.
Example
The festival was coincident with the national holiday.
B1 adjective /ˈkɒn.stənt/

Constant

Meaning
occurring continuously over a period of time; unchanging; steady
Example
The machine runs at a constant speed.
B1 adverb /ˈkʌrəntli/

currently

Meaning
at the present time; now
Example
He is currently working on a new project.
C1 noun /ˈsɪ.nɪk/

Cynic

Meaning
a person who believes that people are motivated purely by self-interest; someone who is skeptical about human nature
Example
The old cynic believed that politicians only cared about getting votes.
A1 noun /tʃiːz/

Cheese

Meaning
a food made from the pressed curds of milk; used for photography to make people smile
Example
She added grated cheese to the pasta for extra flavor.
C1 noun /ˈsɛntrɪˌfjuːdʒ/

centrifuge

Meaning
A machine that spins substances at high speed to separate different components.
Example
The lab technician used a centrifuge to separate the blood cells from the plasma.
C2 noun /ˈklaʊdˌbɜːrst/

cloudburst

Meaning
a sudden and very heavy rainfall
Example
The picnic was ruined by a sudden cloudburst.
B2 noun /ˈkrɪtɪk/

critic

Meaning
A person who judges the merits of something, especially art or literature
Example
The film critic praised the director's latest movie.
A2 noun, verb /kɒf/

cough

Meaning
a sudden noisy release of air from the lungs to clear the throat or airway; to expel air suddenly from the lungs with a cough
Example
He has a bad cough and stayed home today.
A2 adjective /ˈkjʊriəs/

curious

Meaning
Eager to know or learn something.
Example
The curious explorers asked questions about Antarctica.
B2 verb /kəmˈpɛl/

compel

Meaning
To force or drive someone to do something.
Example
The law compels citizens to pay taxes.
B2 adjective /ˈsɜːrkjələr/

circular

Meaning
shaped like a circle; round in form
Example
The kids sat in a circular arrangement around the campfire.
C1 noun /ˈkeɪ.sɪŋ/

Casing

Meaning
a cover or shell that protects or encloses something
Example
The mechanic removed the engine casing to examine the internal parts.
B2 noun ˌkɒn.ekˈtɪv.ɪ.ti

connectivity

Meaning
The state of being connected or interconnected; the capacity for the interconnection of platforms, systems, and applications.
Example
Improved connectivity boosts economic development.
C1 adjective ˈkɒn.və.luː.tɪd

convoluted

Meaning
Extremely complex and difficult to follow; twisted or intricate.
Example
His argument was so convoluted that no one understood it.
C1 noun /sɛˈseɪʃən/

cessation

Meaning
The fact or process of ending or being brought to an end.
Example
There was a temporary cessation of hostilities.
B1 adverb /ˈkɒmənli/

commonly

Meaning
usually or by most people
Example
This phrase is commonly used in everyday speech.
C1 noun /ˌkɒŋɡrɪˈɡeɪʃən/

congregation

Meaning
a group of people assembled for religious worship or a common purpose
Example
The congregation gathered to hear the sermon.
C2 noun /ˈkɒɡ.nɪ.zəns/

cognizance

Meaning
Awareness, knowledge, or understanding of something; conscious perception.
Example
The judge took cognizance of the new evidence.
C2 noun /ˈkætɪˌkɪzəm/

catechism

Meaning
A summary of religious principles often in the form of questions and answers; also a set of fixed questions or beliefs.
Example
The priest taught the children the catechism every Sunday.
B2 adjective /kəmˈpæʃənət/

Compassionate

Meaning
feeling or showing sympathy and concern for others who are suffering
Example
The compassionate nurse took extra time to comfort the worried patients.
B1 noun /ˈkɑn.træst/

Contrast

Meaning
the state of being strikingly different from something else; comparison showing differences
Example
The contrast between city life and rural life is quite remarkable.
C1 noun /kənˈtɛndər/

contender

Meaning
a person or team competing for a title or prize
Example
She is a strong contender for the mayoral position.
B2 adjective /ˈtʃaɪld.laɪk/

Childlike

Meaning
innocent and trusting like a child; having the good qualities of a child; pure and simple
Example
She maintained a childlike wonder about the world around her.
B1 verb /kræk/

crack

Meaning
To break or cause to break without complete separation; to make a sharp sound.
Example
The glass cracked when it was dropped on the floor.
C2 noun /ˈtʃaɪ.nə bɑːks/

China box

Meaning
a small evergreen shrub with tiny white fragrant flowers
Example
The China box plant produced clusters of small white flowers.
A2 adjective /ˈkruːəl/

cruel

Meaning
Willfully causing pain or suffering to others, or feeling no concern about it.
Example
It was cruel to make fun of the injured boy.
A1 noun /kʌp/

Cup

Meaning
a small, round container, typically with a handle, used for drinking tea, coffee, or other hot beverages
Example
She drank tea from her favorite ceramic cup.
C2 noun /ˈkæriən/

carrion

Meaning
the decaying flesh of dead animals
Example
Vultures feed on carrion left in the fields.
B2 adjective /kəʊˈɒpərətɪv/

cooperative

Meaning
willing to work or act together with others for a common purpose
Example
She was very cooperative during the interview process.
B2 adverb /kənˈsɪstəntli/

consistently

Meaning
in a way that does not vary; regularly and dependably
Example
She has been performing consistently well in her studies.
C2 verb /ˌkaʊntərˈmænd/

countermand

Meaning
to revoke or cancel an order or command
Example
The general countermanded the previous orders immediately.
B2 noun, verb /kjuːb/

cube

Meaning
As a noun: a solid object with six equal square faces. As a verb: to cut food into small square pieces.
Example
She put a sugar cube in her tea.
B2 verb /ˈklæsɪfaɪ/

classify

Meaning
to arrange or organize into categories or groups
Example
The librarian classified the books by subject.
A2 adjective /kəˈrɛkt/

correct

Meaning
free from error; accurate
Example
The answer she gave was correct.
C1 noun /ˈkæpɪˌlɛri/

capillary

Meaning
a very thin blood vessel that connects arteries and veins
Example
Oxygen passes from the blood into tissues through capillaries.
C1 verb /kənˈsaɪn/

consign

Meaning
to deliver something to a person or place, often for selling or safekeeping
Example
He consigned the package to the shipping company.
B2 adjective ˌkɑː.bən ˈnjuː.trəl

carbon-neutral

Meaning
Having a balance between emitting carbon and absorbing carbon from the atmosphere; not adding to overall carbon emissions.
Example
The company aims to be carbon-neutral by 2030.
B1 verb /klæp/

clap

Meaning
To strike the palms of the hands together, usually to express approval or create a sharp sound.
Example
The audience began to clap loudly after the performance.
B1 noun /kənˈfjuː.ʒən/

Confusion

Meaning
lack of understanding; uncertainty; the state of being bewildered or unclear in one's mind
Example
There was confusion about the meeting time, so half the team arrived late.
B2 verb /ˈkærəktəraɪz/

characterize

Meaning
to describe or portray the distinctive features or qualities of someone or something
Example
The author characterizes the hero as brave and selfless.
B2 verb /kəmˈpraɪz/

comprise

Meaning
To consist of or be made up of something.
Example
The committee comprises five members.
C2 verb /ˈtʃeɪ.sən/

chasten

Meaning
to correct or discipline; to humble or subdue
Example
The coach chastened the team after their poor performance.
C1 noun /ˈkaʊərdɪs/

cowardice

Meaning
lack of courage; behavior showing fear
Example
His cowardice prevented him from speaking up.
C1 verb /ˈkɒnsɪkreɪt/

consecrate

Meaning
to make something sacred, usually through a religious ceremony
Example
The church was consecrated by the bishop.
C2 noun /kɒn.tɪˈɡjuː.ɪ.ti/

contiguity

Meaning
the state of being in direct contact or next to each other
Example
The contiguity of the two countries facilitates trade.
B1 noun /ˈkæp.ɪ.təl/

Capital

Meaning
the most important city or town of a country or region; wealth in the form of money or assets
Example
Paris is the capital of France and also a major financial capital.
B2 noun /klɔː/

Claw

Meaning
sharp curved nail on the foot of an animal or bird
Example
The cat extended its sharp claws to climb the tree.
C1 noun /ʃəˈreɪd/

charade

Meaning
an absurd pretense or act intended to deceive; also a word-guessing game
Example
The trial was nothing more than a political charade.
B1 verb /kənˈsɪst/

consist

Meaning
to be made up or composed of certain parts or elements
Example
The committee consists of five members.
C1 noun /ˈkʌˈs.tə.di/

Custody

Meaning
the protective care or guardianship of someone or something; imprisonment or detention
Example
After the divorce, they shared custody of their children equally.
C2 noun /ˈkɒmɪti/

comity

Meaning
Courtesy and considerate behavior towards others; mutual respect.
Example
The meeting was conducted with comity and respect.
C2 verb /kəˈmɪz.ə.reɪt/

commiserate

Meaning
To express sympathy or compassion for someone's misfortune.
Example
She called her friend to commiserate after his loss.
C1 adjective /ˌser.ɪˈmoʊ.ni.əl/

Ceremonial

Meaning
relating to or used in ceremonies; formal and ritualistic
Example
The ceremonial dress was worn during the royal wedding.
C2 noun /kəˈræf/

carafe

Meaning
a glass container without handles used for serving drinks like water or wine
Example
The waiter brought a carafe of water to the table.
C2 adjective /tʃəˈruːbɪk/

cherubic

Meaning
Innocent, sweet, and angelic, like a cherub.
Example
The baby had a cherubic smile that melted everyone’s heart.
B2 verb /ˈkʌltɪveɪt/

cultivate

Meaning
to grow crops or plants; to develop or improve something
Example
Farmers cultivate rice in the paddy fields.
C2 noun /ˈsɜːrklət/

circlet

Meaning
A small circular band, typically worn as an ornament on the head.
Example
The princess wore a golden circlet on her forehead.
C2 adjective /ˈkoʊltɪʃ/

coltish

Meaning
Playful, energetic, and not fully mature or disciplined.
Example
The coltish boy ran around the field without a care.
B1 noun /kriˈeɪ.ʃənz/

creations

Meaning
Things that have been created, especially works of art or imaginative works.
Example
His creations astonished the world.
C2 noun /ˈklæpər/

clapper

Meaning
The free-swinging metal piece inside a bell that strikes it to produce sound.
Example
The clapper inside the bell was broken.
B2 noun /kəmˈplek.ʃən/

Complexion

Meaning
the natural color, texture, and appearance of a person's skin, especially on the face
Example
Her fair complexion glowed beautifully in the morning sunlight.