catalyst
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C1 noun ˈkætəlɪst

catalyst

Meaning
A person or thing that precipitates an event or change.
Example
His speech acted as a catalyst for change in the community.
B1 noun /ˈklɪn.ɪk/

clinic

Meaning
A place where people receive medical treatment without staying overnight.
Example
She went to the clinic for a health check-up.
C1 noun /ˈkɑːrdəməm/

Cardamom

Meaning
aromatic seeds from a plant in the ginger family, used as a spice
Example
The recipe calls for a pinch of ground cardamom.
C1 noun /ˈkleɪmənt/

claimant

Meaning
a person who makes a claim, especially in a legal or financial context
Example
The claimant filed for compensation after the accident.
B1 noun ˈtʃæt.dʒiː.piː.tiː

ChatGPT

Meaning
A language-based artificial intelligence model designed for conversational interactions.
Example
ChatGPT helps users generate human-like text efficiently.
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.
C1 noun /kənˈtɛnʃən/

contention

Meaning
heated disagreement or argument; a point asserted in debate
Example
The main contention between the two parties was over tax reform.
B2 noun/verb /ˈtʃɑːrtər/

charter

Meaning
a written document granting rights or privileges; to hire a vehicle or vessel for temporary use
Example
The company decided to charter a bus for the trip.
A1 noun /klɑːs/

class

Meaning
a group of students taught together or a category of people or things with shared characteristics
Example
Our class meets every morning at nine.
B2 noun /ˈkænvəs/

canvas

Meaning
A strong, coarse cloth used for tents, sails, or painting.
Example
The artist prepared a canvas for his new painting.
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 /kənˈsaɪnər/

consignor

Meaning
a person or company that sends goods to be sold or transported
Example
The consignor shipped the goods to the warehouse.
C2 noun/adjective /ˈsaɪklɔɪd/

cycloid

Meaning
a curve traced by a point on the rim of a circle as it rolls along a straight line
Example
The cycloid is often studied in mathematics and physics.
C2 noun /ˈkɒl.ə.kwi/

colloquy

Meaning
A formal conversation or dialogue, often on serious or academic topics.
Example
The professors engaged in a deep colloquy about the future of education.
B2 verb /kəmˈpaɪl/

compile

Meaning
to collect information or material and put it together in a list, report, or book
Example
She compiled the research data into a detailed report.
A1 noun/verb /ˈkʊkɪŋ/

cooking

Meaning
the process of preparing food by heating it
Example
Cooking is one of my favorite hobbies.
C1 noun /ˈkɔːrdən/

cordon

Meaning
a line or circle of police, soldiers, or guards preventing access
Example
The police set up a cordon around the crime scene.
C2 noun /ˈklæŋər/

clangor

Meaning
A loud, resonant, and continuous noise, often metallic.
Example
The clangor of the church bells filled the town square.
B2 noun /ˈkəʊ.tɪŋ/

coating

Meaning
A protective or decorative layer applied to a surface.
Example
A protective coating prevents rust formation.
B2 noun /kənˈkʌʃən/

concussion

Meaning
A temporary unconsciousness or shock caused by a blow to the head.
Example
He suffered a concussion after falling from the bike.
C2 noun /ˈʃɛvrən/

chevron

Meaning
A V-shaped pattern, often used in military insignia or design.
Example
The sergeant’s uniform displayed three chevrons on the sleeve.
B1 noun ˈtʃɑː.dʒɪŋ

charging

Meaning
The process of supplying electrical energy to recharge a battery or power source.
Example
Electric vehicle charging stations are increasing in cities.
B2 verb kəˈlaɪd

collide

Meaning
Hit with force when moving; come into conflict or opposition.
Example
The two cars collided at the intersection.
B1 adjective kənˈsɪs.tənt

consistent

Meaning
Acting or done in the same way over time, especially so as to be fair or accurate.
Example
Consistent performance leads to success.
B2 verb /ˈsɜːrkjəˌleɪt/

circulate

Meaning
to move continuously or freely through a closed system or area
Example
Air circulated freely in the open hall.
B1 noun ˈklaɪ.mət tʃeɪndʒ

climate change

Meaning
A change in global or regional climate patterns, attributed largely to the increased levels of atmospheric carbon dioxide produced by the use of fossil fuels.
Example
Climate change is causing more natural disasters.
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.
B1 noun /kəmˈpəʊzə(r)/

composer

Meaning
a person who writes music, especially classical music
Example
The composer is working on a new symphony.
C1 noun /ʃəˈmiːz/

Chemise

Meaning
a woman's loose-fitting undergarment or dress hanging straight from the shoulders
Example
The vintage chemise was made of delicate lace and silk.
B1 verb /kənˈsuːm/

consume

Meaning
to eat or drink; to use up; to destroy completely
Example
We consume a lot of water during summer.
C1 adjective /kənˈtraɪvd/

contrived

Meaning
artificial or forced; not natural or spontaneous
Example
The ending of the movie felt contrived and unrealistic.
C2 verb /ˈkrɪŋ.kəl/

crinkle

Meaning
To form small creases or wrinkles.
Example
She crinkled her nose at the strange smell.
C2 adjective /ˈkʌvətəs/

covetous

Meaning
having or showing a strong desire for someone else's possessions
Example
She gave him a covetous look when he showed his new watch.
C2 noun /ˈklɪpər/

clipper

Meaning
a tool used for cutting, or a fast sailing ship of the 19th century
Example
The barber used clippers to trim his hair.
C1 noun /kɑːrˈtɒɡrəfər/

cartographer

Meaning
A person who makes maps.
Example
The cartographer carefully drew the map of the new territory.
C2 adjective /kəˈprɪʃəs/

capricious

Meaning
given to sudden and unaccountable changes of mood or behavior
Example
The stock market can be capricious, shifting dramatically without warning.
B2 adjective /kənˈtɛmpərɛri/

contemporary

Meaning
belonging to the same time period; modern
Example
She enjoys contemporary art exhibitions.
C2 verb /kənˈdjuːs/

conduce

Meaning
To help bring about a particular result; to contribute to something.
Example
Regular exercise conduces to better health.
B2 noun /ˈkɒmɜːs/

commerce

Meaning
the activity of buying and selling goods and services
Example
International commerce has expanded significantly in recent years.
C1 noun /ˈkɑːrtɪlɪdʒ/

cartilage

Meaning
A firm, flexible connective tissue found in various parts of the body such as joints, ear, and nose.
Example
The doctor explained that the injury damaged the cartilage in his knee.
B2 verb /kənˈsiːv/

conceive

Meaning
to form or imagine an idea in the mind; to become pregnant
Example
It is hard to conceive how such an idea could succeed.
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.
C1 verb /kraʊtʃ/

crouch

Meaning
to bend your knees and lower your body close to the ground
Example
The cat crouched before leaping at its prey.
B2 noun /kənˈdʒʌŋkʃən/

conjunction

Meaning
a word used to connect clauses or sentences, or to coordinate words
Example
The words 'and' and 'but' are common conjunctions.
B2 noun /ˈklær.ɪ.ti/

clarity

Meaning
The quality of being coherent and intelligible; transparency or lucidity.
Example
The speaker's clarity made the concept easy to understand.
C1 noun ˌkæl.ɪˈbreɪ.ʃən

calibration

Meaning
The action or process of adjusting or determining the accuracy of measuring instruments.
Example
The accuracy of a scale depends on regular calibration.
C2 noun /ˈkɒn.kɔːd/

concord

Meaning
Agreement or harmony between people or groups.
Example
The leaders worked towards international concord.
A2 noun /kəˈmjuː.nə.ti/

community

Meaning
a group of people living in the same place or sharing common interests
Example
The community worked together to clean the park.
A2 noun/verb /ˈkɒntækt/

contact

Meaning
Communication or connection with someone.
Example
You should contact your doctor if symptoms persist.
C2 noun ˌkɒdʒɪˈteɪʃən

cogitation

Meaning
The action of thinking deeply about something; contemplation
Example
After much cogitation, he made the final decision.
B1 adjective /kənˈtɪn.ju.əs/

continuous

Meaning
forming an unbroken whole; without interruption
Example
The factory operates on a continuous 24-hour schedule.
B2 adjective /kəˈmɛndəbl̩/

commendable

Meaning
deserving praise or approval
Example
Her dedication to the project was truly commendable.
C1 noun /kɑːrˈtɒɡrəfi/

cartography

Meaning
The science or practice of drawing maps.
Example
She studied cartography at university to learn how to design maps.
C1 verb /ˈkəʊ.dɪ.faɪ/

codify

Meaning
to arrange laws, rules, or ideas into a clear and systematic code
Example
The committee worked to codify the existing laws.
B1 adjective /ˈkɜːrli/

curly

Meaning
having curls or waves; shaped with bends or coils
Example
She has naturally curly hair.
C1 adjective ˈser.ɪ.brəl

cerebral

Meaning
Of the cerebrum of the brain.
Example
Cerebral functions regulate thoughts.
B2 noun /kənˈfɛkʃəneri/

confectionery

Meaning
sweets, candies, and other food items made with sugar
Example
The shop sells a wide variety of confectionery.
B1 noun kəˈpæs.ə.ti

capacity

Meaning
The maximum amount that something can contain or produce; the ability or power to do or understand something.
Example
The cable has the capacity to handle vast data traffic.
C1 noun /ˈkliː.vər/

Cleaver

Meaning
a heavy knife with a broad blade used for chopping meat or vegetables
Example
The chef used a cleaver to chop the chicken bones.
C1 noun /ˈkɒz.moʊs/

Cosmos

Meaning
a colorful annual flower with daisy-like blooms and feathery foliage
Example
The cosmos flowers swayed gently in the summer breeze across the meadow.
C1 noun /səˈvɪləti/

civility

Meaning
Polite and courteous behavior.
Example
He treated his opponent with civility despite their differences.
C2 adjective /ˈkælkjʊləbl/

calculable

Meaning
Capable of being calculated, estimated, or measured.
Example
The risk involved in the project is calculable.
C2 noun /ˈkɔːrsər/

courser

Meaning
a swift horse or a hunting horse
Example
The knight rode a fast courser into battle.
B1 verb /koʊˈɑːpəreɪt/

cooperate

Meaning
to work together; to collaborate
Example
The teams cooperate to achieve their common goals.
B1 noun kəˈmɪt.mənt

commitment

Meaning
A promise or firm decision to do something; the state or quality of being dedicated to a cause or activity.
Example
The president reaffirmed his commitment to environmental protection.
B1 noun/verb /ˈkɒmplɪmənt/

compliment

Meaning
a polite expression of praise or admiration; to politely praise someone
Example
She complimented him on his excellent presentation.
A2 verb /kræʃ/

crash

Meaning
To collide violently; to suddenly stop working (for machines or computers).
Example
The car crashed into the wall at high speed.
B2 noun /ˌkrɛd.ɪˈbɪl.ɪ.ti/

credibility

Meaning
The quality of being trusted and believed in; trustworthiness.
Example
His credibility as a leader remains unquestioned.
B2 noun/adjective /ˈkæpɪtəlɪst/

capitalist

Meaning
a person who supports or believes in capitalism; a wealthy business owner
Example
The capitalist believes in the freedom of the market.
C2 noun /kɪˈrɒpədɪst/

chiropodist

Meaning
A healthcare professional who diagnoses and treats foot problems.
Example
The chiropodist treated her painful corns and calluses.
C1 noun /ˌkɒn.əˈsɜːr/

connoisseur

Meaning
an expert judge in matters of taste, especially in food, art, or wine
Example
She is a true connoisseur of fine art.
C1 noun /ˈkoʊtʃ.mən/

Coachman

Meaning
a person who drives a horse-drawn carriage or coach
Example
The coachman skillfully guided the horses through the busy streets.
A1 noun /kæt/

Cat

Meaning
a small domesticated carnivorous mammal with soft fur, a short snout, and retractile claws
Example
The cat sat on the windowsill watching birds.
C1 adjective /ˈkælkjʊleɪtɪŋ/

calculating

Meaning
acting in a scheming and ruthlessly determined way
Example
He had a cold and calculating approach to business.
C2 noun /ˈkæm.fər/

Camphor

Meaning
a white crystalline substance with a strong aromatic smell, used in medicine and religious ceremonies
Example
The temple was filled with the fragrant smoke of burning camphor.
C2 noun /ˈkrɪsəndəm/

christendom

Meaning
the worldwide body or community of Christians
Example
The news spread quickly across Christendom.
B1 noun /ˈtʃiːtər/

cheater

Meaning
a person who cheats or acts dishonestly to gain an advantage
Example
He was caught and labeled as a cheater during the exam.
C1 verb /ˈklæmbər/

clamber

Meaning
to climb with effort or difficulty, often using both hands and feet
Example
The children clambered over the rocks to reach the cave.
A2 noun kɒsts

Costs

Meaning
An amount that has to be paid or spent to buy or obtain something.
Example
Reducing costs improves profit margins.
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.
B1 noun /ˈklaɪənt/

client

Meaning
A person or organization using the services of a professional or company.
Example
The lawyer met with her client to discuss the case.
C2 verb /ˌsɜːrkəmˈnævɪɡeɪt/

circumnavigate

Meaning
to travel all the way around something, especially the earth
Example
Magellan was the first to circumnavigate the globe.
A2 noun /ˈsɪnəmə/

cinema

Meaning
a place where films are shown to the public; the art or industry of making and showing films
Example
We went to the cinema to watch a new movie.
C1 adjective /kəˈrəʊsɪv/

corrosive

Meaning
tending to cause corrosion; harmful or destructive to materials or people
Example
The chemical is highly corrosive and should be handled with care.
C1 noun /ˈʃæpəroʊn/

chaperon

Meaning
An older person who accompanies and supervises young people in social situations.
Example
The teacher acted as a chaperon during the school dance.
C2 noun /ˈtʃælɪs/

chalice

Meaning
A large cup or goblet, typically used for drinking wine in religious ceremonies.
Example
The priest lifted the golden chalice during the ceremony.
C2 adjective /ˈkoʊməˌtoʊs/

comatose

Meaning
In a state of deep unconsciousness, resembling or related to coma.
Example
The comatose patient was kept under constant observation.
C2 adjective /ˈkɔːpjʊlənt/

corpulent

Meaning
fat or obese; having a large bulky body
Example
The corpulent man struggled to fit into the small chair.
B1 noun kəˈmɪt.mənts

commitments

Meaning
Formal pledges or promises to do something, especially in terms of obligations or agreements.
Example
Global commitments to renewable energy are increasing.
C2 noun /ˌkælɪsˈθɛnɪks/

calisthenics

Meaning
exercises that use body weight for strength and flexibility
Example
She practices calisthenics every morning in the park.
C2 noun /ˌkæθəˈlɪsɪti/

catholicity

Meaning
Universality; broad-mindedness; acceptance of a wide variety of things.
Example
Her catholicity of interests makes her a fascinating person.
B2 adverb /kənˈvɜːrsli/

conversely

Meaning
in an opposite or contrary manner
Example
He is rich, conversely, his brother struggles financially.
C2 verb /kəˈraʊz/

carouse

Meaning
to drink and enjoy oneself noisily, often with others
Example
They stayed up all night to carouse after the victory.
B2 noun /kəˈmiː.li.ən/

Chameleon

Meaning
a lizard that can change color to match its surroundings
Example
The chameleon changed its color from green to brown.
C1 noun /ˌkɒnfləˈɡreɪʃən/

conflagaration

Meaning
This is a common misspelling of 'conflagration', which means a large, destructive fire.
Example
The term 'conflagaration' is often incorrectly used instead of 'conflagration'.
C1 verb কনডেন্স

condense

Meaning
To change from gas to liquid form; to become denser.
Example
Water vapor condenses into raindrops.
C1 noun /tʃæmp/

champ

Meaning
an informal word for champion or winner.
Example
He is the new champ of the boxing tournament.
C2 adjective /ˈkɒnfluənt/

confluent

Meaning
Flowing together or merging; coming together at one point.
Example
The confluent streams formed a mighty river.
C2 adjective /kəˈpeɪ.ʃəs/

Capacious

Meaning
having a lot of space inside; roomy and spacious
Example
The capacious hall can accommodate five hundred people.
C2 noun /ˈkloʊðiər/

clothier

Meaning
a person or company that makes, sells, or deals in clothes.
Example
The town’s clothier displayed fine suits in his shop window.
B1 noun /ˈkɑn.fɪ.dəns/

Confidence

Meaning
the feeling or belief that one can rely on someone or something; firm trust; self-assurance
Example
She spoke with great confidence during the job interview.
C2 adjective /kənˈdʒɛktʃərəl/

conjectural

Meaning
based on guesswork or incomplete evidence rather than certain knowledge
Example
His explanation was purely conjectural and lacked proof.
C1 verb /kənˈstrɪkt/

constrict

Meaning
to make narrower or tighter; to shrink or compress
Example
The snake constricted its prey before swallowing.
B2 noun /koʊˈɔːrdɪˌneɪtər/

coordinator

Meaning
a person who organizes people or activities so that they work well together
Example
The event coordinator managed everything perfectly.
B2 noun /kɔːrps/

corpse

Meaning
a dead body, especially of a human
Example
The police discovered a corpse in the abandoned house.
C1 verb /kʌl/

cull

Meaning
to select or remove from a larger group, often to reduce numbers
Example
The farmers decided to cull the sick animals from the herd.
B2 verb /kənˈfaɪn/

confine

Meaning
to restrict someone or something within certain limits; to keep someone in a closed space
Example
The prisoner was confined to his cell for 23 hours a day.
C1 noun /ˈkɑr.nɪdʒ/

Carnage

Meaning
the killing of a large number of people; widespread slaughter
Example
The battlefield was filled with carnage after the brutal war.
B2 noun kəˈmɪʃ.ən

commission

Meaning
An official group of people entrusted by a government with a particular function.
Example
The commission recommends constitutional reforms.
B2 adjective ˌkɒntrəˈdɪktəri

contradictory

Meaning
Mutually opposed or inconsistent; containing elements that oppose each other.
Example
Their views on education are contradictory.
C1 adjective /kəmˈplaɪənt/

compliant

Meaning
Willing to agree with or follow rules, requests, or demands.
Example
She was compliant with all the safety requirements.
B2 adjective /kəʊˈhɪə.rənt/

coherent

Meaning
Logical and consistent; forming a unified whole; clear and easy to understand.
Example
His speech was clear and coherent.
B2 noun /ˈkaʊnsələr/

councillor

Meaning
an elected member of a local council who helps make decisions and represent the community
Example
The councillor spoke to residents about improving local roads.
A2 noun/verb /ˈsɜːrkəl/

circle

Meaning
a round shape; to move all the way around something
Example
The children sat in a circle.
B2 adjective /ˈkɒmɪkəl/

comical

Meaning
Funny in a strange or silly way; amusing.
Example
His comical expressions made everyone laugh.
B2 noun /ˈklaɪ.mət əˌdæp.teɪ.ʃən/

climate adaptation

Meaning
The process of adjusting to current or expected climate change and its effects.
Example
Climate adaptation ensures resilience to change.
B1 noun /səˈlɛbrɪti/

celebrity

Meaning
a famous person, especially in entertainment or sports
Example
The celebrity was surrounded by fans at the airport.
C1 noun /kəmˈprɛʃn̩/

compression

Meaning
The act of pressing or squeezing something into a smaller space.
Example
File compression helps reduce storage requirements.
B1 verb /kleɪm/

claim

Meaning
to assert ownership; to state as fact
Example
He claims to be the rightful owner.
A2 noun /ˈkʌm.pə.ni/

company

Meaning
a business organization; the presence of other people
Example
She started her own company to sell handmade products.
C2 verb /kənˈtɛm/

contemn

Meaning
to treat or regard with disdain, scorn, or contempt
Example
He would never contemn honest work, no matter how humble.