catastrophic
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B2 adjective ˌkæt.əˈstrɑː.fɪk

catastrophic

Meaning
Involving or causing sudden great damage or suffering.
Example
Climate change has catastrophic consequences.
B2 verb /ˈklæsɪfaɪ/

classify

Meaning
to arrange or organize into categories or groups
Example
The librarian classified the books by subject.
B2 noun /ˌsɜːrtɪfɪˈkeɪʃən/

certification

Meaning
the process of officially recognizing or confirming that something or someone meets required standards; an official document proving qualification
Example
She received her professional certification after completing the training program.
B2 noun /ˈkjuː.bɪ.kəl/

cubicle

Meaning
A small partitioned-off area of a room, typically in an office.
Example
She works in a cubicle with three other colleagues.
B2 noun ˈkɛmɪkəl weɪst

chemical waste

Meaning
Waste material from industrial or laboratory processes that contains harmful chemicals.
Example
Chemical waste pollutes water bodies.
B2 noun /kriːk/

creek

Meaning
a small stream or narrow river
Example
We went fishing by the creek near our house.
B2 noun; verb /ˈkætəlɒɡ/

catalogue

Meaning
a complete list of items, typically one in alphabetical or systematic order; to make a systematic list of items
Example
The library decided to catalogue all new books digitally.
B2 noun /ˈkɔːtruːm/

courtroom

Meaning
a room in which legal cases are heard and decided by a judge
Example
The witness was called to testify in the courtroom.
B2 noun /kwɪˈziːn/

cuisine

Meaning
A style or method of cooking, especially characteristic of a particular country or region.
Example
Italian cuisine is famous all over the world.
B2 adjective /ˈkɜːrtiəs/

courteous

Meaning
polite, respectful, or considerate in manner
Example
The staff at the hotel were very courteous to all guests.
B2 noun /kɔːrd/

chord

Meaning
A group of musical notes played or sung together; also a straight line segment joining two points on a curve.
Example
She strummed a simple chord on the guitar.
B2 noun /ˈkætəlɔːɡ/

catalog

Meaning
a complete list of items, typically arranged systematically
Example
The library provides an online catalog of all available books.
B2 noun /kənˈdenst mɪlk/

Condensed milk

Meaning
milk from which water has been removed and sugar added, creating a thick, sweet product
Example
The recipe calls for a can of condensed milk to make the dessert extra creamy.
B2 noun /ˈkæt fɪʃ/

Cat fish

Meaning
a freshwater fish with whisker-like barbels around the mouth, commonly found in ponds and rivers
Example
Catfish is often fried and served with rice in Bengali cuisine.
B2 adjective /ˈsɛl.əˌbreɪ.tɪd/

celebrated

Meaning
Widely known and praised; famous for an achievement.
Example
He is a celebrated author in the field of literature.
B2 noun /kəˈlɪʒ.ən/

Collision

Meaning
an instance of one moving object hitting violently against another; a conflict of opposing ideas or interests
Example
The collision between two cars caused a major traffic jam.
B2 adjective + noun kriˈeɪtɪv ɪɡˈzɪbɪts

creative exhibits

Meaning
Artistic displays or presentations that show originality and imagination.
Example
The creative exhibits highlighted recycling possibilities.
B2 noun /kənˈvɜːrtər/

converter

Meaning
a device or person that changes something from one form, system, or use to another; a tool that converts data, energy, or materials
Example
The engineer used a converter to change AC power into DC power.
B2 verb /kəmˈpraɪz/

comprise

Meaning
To consist of or be made up of something.
Example
The committee comprises five members.
B2 noun /ˈkʊk.uː/

Cuckoo

Meaning
a bird known for its distinctive call and for laying eggs in other birds' nests
Example
We heard the cuckoo calling from the forest early in the morning.
B2 noun /ˌkɔr.əˈspɑn.dəns/

Correspondence

Meaning
letters sent or received; similarity or equivalence; communication by exchange of letters
Example
The historical correspondence between the two famous writers was recently published.
B2 noun ˈkrɪt.ɪ.kəl ˈθɪŋ.kɪŋ

critical thinking

Meaning
The objective analysis and evaluation of an issue in order to form a judgment.
Example
Critical thinking helps in making informed decisions.
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.
B2 adjective /ˈkælkjuleɪtɪd/

calculated

Meaning
Done with full awareness of the consequences; deliberate or carefully planned.
Example
Her calculated move gave her an advantage over her competitors.
B2 noun /ˈkɑn.ʃəns/

Conscience

Meaning
an inner feeling or voice viewed as acting as a guide to the rightness or wrongness of one's behavior
Example
His conscience prevented him from lying to his parents about his grades.
B2 noun /ˈkɒmənˌteɪtər/

commentator

Meaning
a person who reports and discusses events, especially on TV or radio
Example
The commentator described the football match in detail.
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 noun /ˈkaʊ.ərd/

Coward

Meaning
a person who lacks the courage to do or endure dangerous or unpleasant things
Example
He called himself a coward for not standing up to the bully.
B2 adjective /kənˈvɪnsɪŋ/

Convincing

Meaning
believable; credible; persuasive; able to make someone believe something
Example
His convincing argument won over the entire jury.
B2 verb /kəˈmɛnd/

commend

Meaning
to praise formally or officially
Example
The teacher commended the students for their hard work.
B2 noun /ˈkɑn.trəˌvɜr.si/

Controversy

Meaning
prolonged public disagreement or heated discussion; a dispute or argument involving opposing viewpoints
Example
The new policy sparked a major controversy among the citizens.
B2 noun /ˈkoʊ.brə/

Cobra

Meaning
a venomous snake with a hood that can be spread when threatened
Example
The cobra raised its hood and hissed at the intruder.
B2 noun /ˈtʃer.i ˌblɒs.əm/

Cherry Blossom

Meaning
the pink or white flowers of a cherry tree that bloom in spring
Example
The cherry blossoms bloom beautifully in April.
B2 noun kəˌlæbəˈreɪʃən

collaboration

Meaning
The action of working with someone to produce or create something
Example
International collaboration is necessary to fight pollution.
B2 adjective /kənˈsɪd.ər.ɪt/

Considerate

Meaning
showing careful thought about the feelings or wishes of others; thoughtful
Example
He is always considerate of others' feelings.
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.
B2 noun/verb /ˈkɒmplɪmənt/

complement

Meaning
something that completes or goes well with something; to add something that enhances or improves
Example
The scarf complements her outfit perfectly.
B2 noun /kəmˈpɑːrt.mənt/

Compartment

Meaning
a separate section or division of a larger space, especially in a train
Example
We found seats in the first-class compartment.
B2 noun kənˈtrækʃən

contraction

Meaning
The process of becoming smaller; a decrease in size or quantity.
Example
The economic contraction resulted in a rise in unemployment.
B2 adjective /ˈkeər.friː/

Carefree

Meaning
free from anxiety or responsibility; lighthearted; worry-free
Example
She lived a carefree life, traveling the world without any worries.
B2 verb /ˌkɒmprɪˈhɛnd/

comprehend

Meaning
to understand or grasp the meaning of something
Example
It is difficult to comprehend the scale of the disaster.
B2 noun /ˈkænən/

Cannon

Meaning
large heavy gun that fires cannonballs or shells
Example
The castle was defended by several large cannons.
B2 noun kənˈsen.səs

consensus

Meaning
A general agreement among all members of a group.
Example
Consensus was reached after long deliberation.
B2 noun /ˈklɪərəns/

clearance

Meaning
official permission or authorization; the removal of something unwanted; the distance between two objects
Example
The pilot received clearance to land the plane.
B2 noun/adjective /kənˈstɪtʃuənt/

constituent

Meaning
Noun: A member of a constituency or an essential part of something. Adjective: Being a necessary part of a whole.
Example
The senator met with his constituents to discuss local issues.
B2 verb kəˈlaɪd

collide

Meaning
Hit with force when moving; come into conflict or opposition.
Example
The two cars collided at the intersection.
B2 verb /kənˈstreɪn/

constrain

Meaning
to limit or restrict someone or something; to force or compel
Example
The new regulations constrain businesses from polluting the environment.
B2 verb /ˈkɒntəmpleɪt/

contemplate

Meaning
to think deeply and carefully about something; to consider thoughtfully
Example
She sat quietly to contemplate her future plans.
B2 noun /ˈkeɪ.ɒs/

Chaos

Meaning
complete disorder and confusion; a state of total confusion with no order
Example
The earthquake caused chaos in the city as buildings collapsed and people panicked.
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.
B2 adjective /kəmˈpʌlsəri/

compulsory

Meaning
Required by law or a rule; obligatory.
Example
Wearing seat belts is compulsory in most countries.
B2 adjective /ˈkæθəlɪk/

catholic

Meaning
Including a wide variety; all-embracing; relating to the Roman Catholic Church.
Example
She has catholic tastes in music, enjoying everything from jazz to opera.
B2 verb, noun /ˈkɒntɛst/

contest

Meaning
verb: to compete or challenge; noun: a competition or dispute
Example
She decided to contest the election against the incumbent.
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.
B2 noun /ˈkæʃuː nʌts/

Cashew nuts

Meaning
kidney-shaped nuts from the cashew tree, commonly eaten as snacks or used in cooking
Example
Cashew nuts are often used in Indian sweets and curries.
B2 noun ˌkɒn.stɪˈtjuː.ʃən

constitution

Meaning
A body of fundamental principles or established precedents according to which a state is governed.
Example
Constitutional reforms ensure equity.
B2 adjective /ˈkɑːmjənl/

communal

Meaning
Shared by all members of a community; for common use.
Example
The villagers worked together in the communal garden.
B2 verb /kənˈsiːl/

conceal

Meaning
to hide something or keep it secret
Example
He tried to conceal his disappointment behind a smile.
B2 noun /ˈsɪnəmən/

Cinnamon

Meaning
aromatic spice obtained from the inner bark of several tree species
Example
Cinnamon is often used in baking and desserts.
B2 noun ˌkɒn.fɪ.den.ʃiˈæl.ɪ.ti

confidentiality

Meaning
The state of keeping or being kept secret or private
Example
Confidentiality is crucial in data security.
B2 noun /ˈsɛmɪˌtɛri/

cemetery

Meaning
a place where dead people are buried
Example
The old cemetery is located at the edge of the village.
B2 verb /siːs/

cease

Meaning
to bring or come to an end; to stop doing something
Example
The noise ceased as soon as the children went inside.
B2 verb /kəmˈpoʊz/

compose

Meaning
to create music or writing; to make up; to calm oneself
Example
She composes beautiful songs.
B2 adjective /ˈkrɒnɪk/

chronic

Meaning
Lasting for a long time or constantly recurring, often describing illness.
Example
She suffers from chronic back pain.
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.
B2 noun /kənˈsɛnt/

consent

Meaning
permission for something to happen or agreement to do something
Example
She gave her consent before the operation.
B2 adverb /ˈkæʒ.u.ə.li/

Casually

Meaning
in a relaxed and informal way; without much thought or preparation
Example
He casually mentioned that he was leaving.
B2 noun /ˈsɜːrkɪt/

circuit

Meaning
A roughly circular line, route, or movement that starts and ends at the same place; also an electrical pathway.
Example
The runners completed the circuit around the park.
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.
B2 noun /kəˈrʌp.ʃən/

Corruption

Meaning
dishonest or fraudulent conduct by those in power; the process of decay or decomposition
Example
The government launched a campaign to fight corruption in public offices.
B2 noun /kəˈlɛktər/

collector

Meaning
a person who collects things as a hobby or job
Example
He is a stamp collector with thousands of rare items.
B2 noun /kaʊtʃ/

Couch

Meaning
a long upholstered seat for more than one person, typically with a back and arms
Example
The family gathered on the couch to watch a movie.
B2 adjective /kræmpt/

cramped

Meaning
uncomfortably small or restricted
Example
The room was so cramped that we could barely move.
B2 adjective /ˈkjuːbən/

cuban

Meaning
relating to Cuba, its people, or its culture
Example
We enjoyed delicious Cuban coffee at the café.
B2 noun/verb /kjuː/

cue

Meaning
A signal or prompt for action; to give a signal.
Example
The actor waited for his cue before entering the stage.
B2 adjective ˈkɒɡnɪtɪv

cognitive

Meaning
Related to mental processes of perception, memory, judgment, and reasoning.
Example
Cognitive functions improve with practice and learning.
B2 noun /ˈkʌvərɪdʒ/

coverage

Meaning
The extent or scope of something, such as insurance protection or media reporting.
Example
The news channel provided extensive coverage of the event.
B2 verb /ˈtʃɛrɪʃ/

cherish

Meaning
To hold something dear, to love and protect, or to keep a hope or memory alive.
Example
She cherishes the memories of her childhood home.
B2 verb /ˈkɒmbæt/

combat

Meaning
to fight against something, especially to reduce or stop it
Example
The government is taking steps to combat corruption.
B2 noun /kɒk/

Cock

Meaning
an adult male chicken
Example
The cock crowed loudly at dawn to wake everyone up.
B2 noun /ˈkɒnsənənt/

consonant

Meaning
A speech sound produced by blocking air flow, or a letter representing such a sound.
Example
The word 'cat' has two consonants and one vowel.
B2 noun /ˈkɒmənˌtɛri/

commentary

Meaning
An expression of opinions or explanations about an event, situation, or text.
Example
The professor's commentary on the novel was insightful.
B2 verb /kəˈmɛns/

commence

Meaning
to begin or start something
Example
The ceremony will commence at noon.
B2 noun ˈkæp.sjuːl

capsule

Meaning
A small soluble case of gelatin containing a dose of medicine, swallowed whole.
Example
Capsules contain controlled environments.
B2 noun /kənˈtroʊlər/

controller

Meaning
a person or device that manages, directs, or regulates something
Example
The game controller made it easy to play the video game.
B2 noun /kʌb/

Cub

Meaning
a young bear, lion, tiger, or other large carnivorous mammal
Example
The bear cub stayed close to its mother for protection.
B2 verb /ˈkɒnvɪkt/

convict

Meaning
to find someone guilty of a crime in a court of law
Example
The court convicted him of theft.
B2 noun ˌsaɪ.bə.sɪˈkjʊə.rɪ.ti

cybersecurity

Meaning
The practice of protecting systems, networks, and programs from digital attacks
Example
Cybersecurity ensures safe digital operations.
B2 noun /koʊˈɪn.sɪ.dəns/

Coincidence

Meaning
a remarkable occurrence of events or circumstances without apparent causal connection; chance happening
Example
It was a strange coincidence that they both wore the same dress to the party.
B2 noun /ˌkɑː.bəʊˈhaɪ.dreɪts/

carbohydrates

Meaning
Organic compounds consisting of carbon, hydrogen, and oxygen, serving as a primary source of energy for the body.
Example
Whole grains are a great source of healthy carbohydrates.
B2 adjective /ˈtʃeɪn.dʒə.bəl/

Changeable

Meaning
able to be changed; likely to change frequently
Example
The weather is very changeable in spring.
B2 noun /kloʊv/

Clove

Meaning
aromatic flower buds of a tree in the family Myrtaceae, used as a spice
Example
She added a few cloves to the mulled wine for extra flavor.
B2 noun /ˈkɒpə/

copper

Meaning
a reddish-brown metal used for electrical wiring, coins, and more
Example
Copper is a good conductor of electricity.
B2 noun /ˈkɒk.roʊtʃ/

Cockroach

Meaning
a flat brown insect that is commonly found in kitchens and other warm places
Example
A cockroach ran across the kitchen floor quickly.
B2 adjective /ˈkɒŋ.kriːt/

Concrete

Meaning
solid; real; tangible; actual and specific
Example
We need concrete evidence to support our claims.
B2 noun /ˈkænjən/

canyon

Meaning
A deep gorge, typically one with a river flowing through it.
Example
The Colorado River carved the Grand Canyon over millions of years.
B2 noun /koʊl/

coal

Meaning
a black or dark brown rock used as fuel, formed from decomposed plant matter
Example
The factory still uses coal as its main source of energy.
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.
B2 noun /kraɪˈtɪəriə/

criteria

Meaning
Standards or principles by which something is judged or decided.
Example
The candidates were evaluated based on strict criteria.
B2 noun /ˌkɔːrpəˈreɪʃən/

corporation

Meaning
A large company or group of companies that is legally recognized as a single entity.
Example
The corporation invested heavily in renewable energy projects.
B2 adjective ˈkʌl.ɪ.nər.i

culinary

Meaning
Related to cooking or the preparation of food, especially in a sophisticated or professional manner.
Example
Culinary advancements enhance the dining experience.
B2 noun /ˈkaʊntərˌpɑːrt/

counterpart

Meaning
a person or thing that corresponds to or has the same function as another
Example
The CEO met with his counterpart in the partner company.
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 adjective /ˈkræŋki/

cranky

Meaning
bad-tempered, easily annoyed, or irritable
Example
The child gets cranky when he is hungry.
B2 adjective /ˈkɒm.pɪ.tənt/

Competent

Meaning
having the necessary skill or knowledge to do something successfully; capable
Example
She is a competent manager who handles all tasks efficiently.
B2 adjective kɒnˈtek.stju.əl

contextual

Meaning
Depending on or relating to the circumstances or setting; context-dependent.
Example
Contextual meaning changes depending on usage.
B2 adjective /ˈsel.jə.lər/

Cellular

Meaning
relating to cells; consisting of cells; relating to mobile phone technology
Example
Cellular technology has revolutionized communication.
B2 phrase kəˈlek.tɪv ˈæk.ʃən

collective action

Meaning
Action taken by a group of people working together toward a common goal or purpose.
Example
Collective action is needed to mitigate climate change.
B2 noun /kəˈkeɪn/

cocaine

Meaning
a powerful and addictive illegal drug made from coca leaves
Example
He was arrested for possessing cocaine.
B2 noun kəˈmɒd.ə.ti

commodity

Meaning
A raw material or primary agricultural product that can be bought and sold.
Example
Oil is a valuable commodity in the global market.
B2 noun /ˌkɒnsərˈveɪʃən ˈmuːvmənt/

Conservation Movement

Meaning
A political, environmental, and social movement that seeks to protect natural resources including plant and animal species as well as their habitat for the future.
Example
The conservation movement began in the 19th century to protect wildlife.
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 /kroʊ/

Crow

Meaning
a large black bird known for its intelligence and harsh call
Example
The crow cawed loudly from the tree branch.
B2 noun /ˌkɒrəˈspɒndənt/

correspondent

Meaning
A journalist who reports news from a particular place or on a particular subject.
Example
The foreign correspondent reported live from Paris.
B2 verb /kənˈfrʌnt/

confront

Meaning
to face someone or something directly, especially in a challenge or conflict
Example
She had to confront her fears before making the speech.
B2 noun /ˈkʌs.tə.mər rɪˈten.ʃən/

Customer Retention

Meaning
The ability of a company or product to retain its customers over some specified period.
Example
High customer retention increases business sustainability.
B2 adjective /kəmˈpækt/

Compact

Meaning
closely and neatly packed together; small and efficiently designed
Example
She bought a compact car that fits easily in small parking spaces.
B2 adverb /ˈkrɪtɪkli/

critically

Meaning
in a way that expresses disapproval or a very serious, important way
Example
He was critically injured in the accident.
B2 verb /kɜːrb/

curb

Meaning
to restrain, control, or limit something
Example
The government took steps to curb inflation.
B2 noun ˈkɔːrəl ˈriːfs

Coral Reefs

Meaning
Underwater structures made from calcium carbonate secreted by corals, forming diverse marine ecosystems.
Example
Saint Martin's Island is known for its coral reefs.
B2 noun ˌkʌl.tɪˈveɪ.ʃən

cultivation

Meaning
The practice of preparing and using land for crops or gardening; the action of improving or developing something.
Example
The cultivation of organic crops has increased worldwide.