cation-exchange
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C2 noun /ˈkæt.aɪ.ɒn ɪksˌtʃeɪndʒ/

cation-exchange

Meaning
A chemical process in soil that helps retain nutrients.
Example
The cation-exchange capacity of soil affects plant growth.
C2 adjective /kənˈfɔːrməbl/

conformable

Meaning
Capable of being adapted or consistent with something; compliant.
Example
His actions were conformable to the rules of the institution.
B1 verb /ˈkrɪtɪsaɪz/

criticize

Meaning
to express disapproval or find fault with someone or something
Example
The teacher criticized the student's poor handwriting.
C2 noun /kwɑːˈfjʊr/

coiffure

Meaning
A person's hairstyle, typically an elaborate one.
Example
Her elegant coiffure impressed everyone at the party.
B1 adjective /ˈkʌtɪŋ/

cutting

Meaning
sharp or severe, often used to describe remarks or actions
Example
Her cutting remarks made everyone feel uncomfortable.
C2 noun /ˈklɔɪstər/

cloister

Meaning
a covered walk in a convent, monastery, or cathedral, typically with a wall on one side and a colonnade open to a quadrangle on the other.
Example
The monks walked silently through the cloister.
B2 noun /ˈkæriər/

carrier

Meaning
A person or thing that carries, transports, or conveys something; also an organization that provides transport services.
Example
The airline is the largest carrier in the country.
A2 noun /ˌkɒnvəˈseɪʃn/

conversation

Meaning
an informal talk between two or more people, in which ideas, feelings, and thoughts are exchanged
Example
We had a long conversation about future plans.
C1 verb /kənˈfaʊnd/

confound

Meaning
to confuse or surprise someone, often by acting against their expectations
Example
The magician's trick seemed to confound the entire audience.
C2 noun /kɒzˈmɒɡ.ə.ni/

cosmogony

Meaning
the study or theory of the origin of the universe
Example
The book provides an overview of different cosmogonies throughout history.
C2 noun /kənˈtraɪ.vəns/

contrivance

Meaning
a device or plan that is cleverly or artificially created
Example
The clock was an intricate contrivance of gears and springs.
B2 verb /ˈkɒm.plɪ.keɪt/

complicate

Meaning
To make something more difficult or confusing.
Example
The new rules will only complicate the process.
C1 noun /ˈsɪn.ɪˌsɪz.əm/

cynicism

Meaning
An inclination to believe that people are motivated purely by self-interest; skepticism.
Example
His cynicism made it hard for him to trust anyone.
B2 noun/verb /kəˈmjuː.tɪŋ/

commuting

Meaning
Regular travel to and from workplace, daily journey for work.
Example
He spends two hours commuting to work every day.
B1 noun /ˈkɔːrɪdɔːr/

corridor

Meaning
a long passage in a building from which doors lead into rooms
Example
The students waited quietly in the corridor.
C1 noun /səˈvɪləti/

civility

Meaning
Polite and courteous behavior.
Example
He treated his opponent with civility despite their differences.
B1 noun /ˈkɛmɪstri/

chemistry

Meaning
the branch of science that studies substances and their interactions; also the emotional connection between people
Example
They have great chemistry and work well together.
C2 noun /səˈlɛrɪti/

celerity

Meaning
swiftness of movement; speed
Example
The soldier moved with great celerity to deliver the message.
B1 noun /ˈkɒnsɪkwənsɪz/

consequences

Meaning
Results or effects of an action or condition.
Example
The consequences of ignoring safety protocols can be severe.
C2 noun /ˌkæt ə ˈnaɪn ˌteɪlz/

cat-o-nine-tails

Meaning
A whip with nine knotted cords, historically used for punishment.
Example
The sailor feared the cat-o-nine-tails more than the storm at sea.
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.
B2 noun /ˈkəʊ.tɪŋ/

coating

Meaning
A protective or decorative layer applied to a surface.
Example
A protective coating prevents rust formation.
C2 verb /kædʒ/

cadge

Meaning
To beg or obtain something, especially food or money, without paying for it.
Example
He tried to cadge a free meal from the restaurant.
C2 noun /sɛnˈtjʊəriən/

centurion

Meaning
A commander of a unit of one hundred soldiers in the ancient Roman army.
Example
The centurion led his men into battle with courage.
B1 noun /kənˈteɪ.nər/

container

Meaning
A receptacle or box used for storage or transportation.
Example
Containers are essential for logistics.
C1 noun /ˈkɔːl.drən/

Cauldron

Meaning
a large metal pot with a lid and handle, used for cooking over a fire
Example
The witch stirred her potion in a large cauldron.
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.
C1 noun /kəˈpɪl.ər.iz/

capillaries

Meaning
Any of the fine branching blood vessels that form a network between the arterioles and venules.
Example
Broken capillaries cause dark circles.
B1 noun /sɛl/

cell

Meaning
a small basic unit of life; or a small enclosed space like a prison room
Example
The prisoner was locked in a small cell.
B1 noun /ˌkɒmbɪˈneɪʃən/

combination

Meaning
The act of joining or mixing two or more things together.
Example
This dish is a perfect combination of sweet and spicy flavors.
C2 noun /kəmˈpleɪsəns/

complaisance

Meaning
willingness to please others; courteous compliance
Example
Her complaisance made her popular among her colleagues.
A2 verb /kəmˈpliːt/

complete

Meaning
to finish making or doing something; to bring something to an end
Example
She managed to complete the project on time.
C2 noun /kɔˈrɪkə soˈbɔrnə/

Corica soborna

Meaning
a small silvery fish species found in South Asian rivers, commonly used in local cuisine
Example
Corica soborna is a popular ingredient in traditional Bengali fish curry.
B1 noun /ˈsɜːrkəmstæns/

circumstance

Meaning
a fact or condition connected with an event or action
Example
She handled the difficult circumstances bravely.
B1 noun /ˈkaʊnti/

county

Meaning
A territorial division within a country, typically a region with its own local government.
Example
She grew up in a small county in northern England.
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.
A2 noun /ˈkʌl.tʃər/

Culture

Meaning
the arts and other manifestations of human intellectual achievement; the customs and beliefs of a particular society
Example
Learning about different cultures helps us understand and appreciate diversity.
A2 verb /tʃɑːrdʒ/

charge

Meaning
to demand payment; to formally accuse; to rush forward aggressively
Example
The store charges extra for home delivery.
B2 noun /ˈkʌm.pəs/

Compass

Meaning
an instrument for finding direction with a magnetic needle pointing to magnetic north
Example
The hiker used a compass to find the right direction.
C1 adjective /kəmˈplɪsɪt/

complicit

Meaning
involved with others in an illegal activity or wrongdoing
Example
He was found complicit in the crime.
B1 verb /kəˈmænd/

command

Meaning
to give an order authoritatively; to control or direct
Example
The general commanded the soldiers to move forward.
C1 noun /kæpˈtɪv.ɪ.ti/

Captivity

Meaning
the condition of being imprisoned or confined
Example
After years of captivity, the prisoner was finally released.
B2 adjective /kəmˈpʌlsəri/

compulsory

Meaning
Required by law or a rule; obligatory.
Example
Wearing seat belts is compulsory in most countries.
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.
B2 adjective /ˌkɑː.di.əʊˈvæs.kjʊ.lər/

cardiovascular

Meaning
Relating to the heart and blood vessels.
Example
Regular exercise improves cardiovascular health.
C2 verb /koʊˈæɡjəˌleɪt/

coagulate

Meaning
to cause a liquid, especially blood, to change into a solid or semi-solid state
Example
The blood quickly coagulated after the cut.
C1 noun /tʃæmp/

champ

Meaning
an informal word for champion or winner.
Example
He is the new champ of the boxing tournament.
B2 noun /ˈkɒn.ʃəs.nəs/

consciousness

Meaning
The state of being aware of and able to think about one's existence, sensations, thoughts, and surroundings.
Example
Meditation helps improve consciousness and clarity of thought.
C1 noun /kənˈsiːt/

conceit

Meaning
excessive pride in oneself; vanity
Example
His conceit made him unpopular among his colleagues.
B1 noun /ˌkæl.kjəˈleɪ.ʃən/

Calculation

Meaning
a mathematical determination of the size or number of something
Example
His calculation of the total cost was accurate to the penny.
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 adjective /kəmˈpætəbl/

compatible

Meaning
Able to exist or work together without conflict; harmonious.
Example
This software is compatible with both Windows and Mac systems.
C1 noun /ˈkæmi.oʊ/

cameo

Meaning
a small but significant role in a play, film, or show, often performed by a well-known person
Example
The actor made a surprise cameo in the movie.
B2 noun /ˈkɔːr.əs/

Chorus

Meaning
a large organized group of singers; a part of a song that is repeated after each verse
Example
The school chorus performed beautifully at the annual concert.
B2 noun /kəmˈpoʊnənt/

component

Meaning
a part or element of a larger whole, especially a machine or system
Example
The engine is the most important component of the car.
C1 noun kəˈmjuːnɪti ˈsɜːrvɪs aɪˈdiːəlz

community service ideals

Meaning
Principles and standards of serving the community for social good.
Example
Community service ideals must be taught in schools.
C2 adjective /ˈsɜːrkəmskraɪbd/

circumscribed

Meaning
restricted or limited in scope or freedom
Example
Her freedom of choice was circumscribed by social rules.
C2 adjective /ˈkʌsɪd/

cussed

Meaning
Annoyingly stubborn or difficult.
Example
He was too cussed to admit his mistake.
C1 noun /kənˈstɪtʃuənsi/

constituency

Meaning
A geographical area whose residents elect a representative to a legislative body.
Example
She campaigned tirelessly across her constituency.
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.
B2 verb /ˈklærɪfaɪ/

clarify

Meaning
to make clear; to explain more clearly
Example
The teacher clarifies the difficult concept.
C1 adjective /ˈsiːs.ləs/

Ceaseless

Meaning
continuing without pause or interruption; endless
Example
The ceaseless rain lasted for three days.
B2 verb /ˌkɒn.trəˈdɪkt/

contradict

Meaning
to say or show the opposite of something that has been said or believed
Example
His actions contradict his words.
B1 adjective /ˈkɒn.fɪ.dənt/

Confident

Meaning
self-assured; certain; having belief in one's abilities
Example
She felt confident about her performance in the exam.
C1 noun/verb /ˈsaɪ.fər/

cipher

Meaning
A secret or disguised way of writing; a code; to put a message into secret writing.
Example
Military messages are protected using a cipher.
C1 noun /kɑst/

Caste

Meaning
a social class system; a hereditary class of Hindu society
Example
The ancient caste system divided society into different social groups.
C2 noun /ˌkɒnsaɪˈniː/

consignee

Meaning
the person or company to whom goods are delivered
Example
The consignee received the shipment on time.
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.
A2 noun /ˈkɒlɪdʒ/

college

Meaning
An educational institution where students study for degrees or professional qualifications.
Example
She hopes to attend college in the city next year.
B1 noun /kæmˈpeɪn/

Campaign

Meaning
an organized course of action to achieve a particular goal; a series of military operations
Example
The environmental campaign successfully raised awareness about climate change.
C1 noun /ˈkʌvənənt/

covenant

Meaning
a formal agreement or promise, often legally binding
Example
The landlord and tenant signed a covenant to maintain the property.
C1 noun /ˈkɒnɪfər/

conifer

Meaning
a type of tree that bears cones and evergreen needle-like leaves, such as pine or fir
Example
The forest is dominated by conifers like pine and spruce.
C2 adjective /ˈkrɛdʒʊləs/

credulous

Meaning
Having or showing too great a readiness to believe things.
Example
The credulous child believed every story she heard.
B2 noun /kraɪˈtɪəriə/

criteria

Meaning
Standards or principles by which something is judged or decided.
Example
The candidates were evaluated based on strict criteria.
C2 noun /ˈʃɑːrlətən/

charlatan

Meaning
a person who pretends to have knowledge or skills that they do not really possess; a fraud
Example
The so-called healer was exposed as a charlatan.
B1 noun /ˌkɒmpəˈzɪʃən/

composition

Meaning
the act of creating a piece of writing, music, or art; the way parts are arranged
Example
Her composition won first prize in the contest.
C2 adjective /sɛnˈsɔːriəs/

censorious

Meaning
severely critical of others
Example
She was always censorious about her colleagues' mistakes.
A2 noun /koʊt/

Coat

Meaning
an outer garment worn over other clothes for warmth or protection
Example
He put on his winter coat before going outside.
B1 adverb /ˈkʌrəntli/

currently

Meaning
at the present time; now
Example
He is currently working on a new project.
A2 noun/verb /ˈsaɪkl/

cycle

Meaning
a series of events that repeat in the same order; or to ride a bicycle
Example
She cycles to school every day.
B2 noun /kəˈrɪz.mə/

charisma

Meaning
Compelling attractiveness or charm that can inspire devotion in others.
Example
His charisma helped him become a great leader.
B1 noun /kənˈvɛnʃən/

convention

Meaning
a widely accepted way of behaving or doing something; a formal meeting
Example
The annual writers' convention was held in Dhaka.
C1 noun/adjective /kənˈfɛdərət/

confederate

Meaning
a person, group, or state joined in an alliance or union; relating to a confederacy
Example
The confederate soldiers fought bravely in the war.
C2 verb /kɔːk/

calk

Meaning
To make a boat or ship watertight by filling seams or cracks.
Example
The workers calked the seams of the old boat to prevent leaks.
C2 noun /ˈkæn.toʊ/

canto

Meaning
A main division of a long poem, especially in epic poetry.
Example
The Divine Comedy is divided into several cantos.
B2 adjective ˌkɒm.prɪˈhen.sɪv

comprehensive

Meaning
Including or dealing with all or nearly all elements or aspects of something; complete and thorough.
Example
A comprehensive study enhances understanding.
B1 verb /tʃɒp/

chop

Meaning
to cut with a sharp tool; to cut into pieces
Example
She chops vegetables for dinner.
C2 adjective /kənˈsʌmptɪv/

consumptive

Meaning
Relating to or characterized by consumption; historically used to describe someone suffering from tuberculosis.
Example
The doctor advised against consumptive habits.
C1 verb /ˈkæp.saɪz/

capsize

Meaning
to overturn in the water
Example
The small fishing boat capsized during the storm.
C1 adjective /kənˈkluː.sɪv/

Conclusive

Meaning
final; decisive; settling a matter completely
Example
The evidence was conclusive and left no room for doubt.
B1 noun /kənˈkluː.ʒən/

Conclusion

Meaning
the end or finish of an event, process, or text; a judgment or decision reached by reasoning
Example
The conclusion of the research paper summarized all the important findings.
A2 noun ˈtʃælɪndʒ

challenge

Meaning
A call to take part in a contest or competition, especially a demanding or stimulating one; a task or situation that tests someone's abilities.
Example
Plastic pollution poses a significant challenge to global health.
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.
B1 noun /ˈkemɪst/

chemist

Meaning
a scientist who studies chemistry; a person trained to prepare and dispense medicines
Example
The chemist analyzed the sample to determine its composition.
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 /ˌkɒmənˈdɪə/

commandeer

Meaning
To take control or possession of something, often by force or authority.
Example
The soldiers commandeered the villagers’ homes during the war.
B1 adjective /kənˈsɪdərəbl/

considerable

Meaning
large in amount, size, or importance
Example
The project required a considerable amount of time and money.
B2 noun /kɒd fɪʃ/

Cod fish

Meaning
A large marine fish with white flesh, commonly used for food
Example
The fisherman caught a large cod fish in the North Atlantic.
C2 adjective /ˈkɒs.ɪ.tɪd/

cosseted

Meaning
pampered, treated with excessive care and attention
Example
The cosseted child always got what he wanted.
C1 verb /kənˈsɛptʃuəlaɪz/

conceptualize

Meaning
to form an idea or concept of something in your mind
Example
The artist conceptualized a new design for the exhibition.
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 /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.
B1 adjective /ˈkɜːrli/

curly

Meaning
having curls or waves; shaped with bends or coils
Example
She has naturally curly hair.
C1 noun /ˈtʃænsələr/

chancellor

Meaning
A senior state or legal official, or the head of a university.
Example
The chancellor delivered an inspiring speech at the graduation ceremony.
C1 noun /ˈkruːsɪbəl/

crucible

Meaning
a severe test or trial; a container used for heating substances to very high temperatures
Example
The team emerged stronger from the crucible of competition.
A2 verb /tʃɪər/

cheer

Meaning
to shout in encouragement or support; to make someone feel happier
Example
The fans cheered loudly when their team scored a goal.
B1 noun kəˈmɪt.i

committee

Meaning
A group of people appointed for a specific function by a larger group.
Example
A 65-member committee was formed.
C1 noun /ˈkroʊ.bɑːr/

Crowbar

Meaning
a heavy iron bar with a curved end used as a lever for prying things apart
Example
He used a crowbar to remove the old nails.
B2 noun /kənˈsɛnt/

consent

Meaning
permission for something to happen or agreement to do something
Example
She gave her consent before the operation.
B2 adjective /ˌkɒst.ɪˈfɪʃ.ənt/

cost-efficient

Meaning
Achieving maximum productivity with minimum wasted effort or expense.
Example
Cost-efficient solutions benefit industries.
B1 noun /tʃɪn/

Chin

Meaning
the protruding part of the face below the mouth, formed by the apex of the lower jaw
Example
He stroked his beard thoughtfully, resting his hand on his chin.
A2 noun /kəˈlek.ʃən/

Collection

Meaning
a group of objects gathered together; the action or process of collecting
Example
She has an impressive collection of vintage books in her library.
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.
B2 noun /ˌsɜː.kjʊˈleɪ.ʃən/

circulation

Meaning
The movement of blood through the body, or the movement of any fluid through a closed system.
Example
Proper circulation ensures that oxygen and nutrients reach every cell.
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 /ˌkæθəˈlɪsɪti/

catholicity

Meaning
Universality; broad-mindedness; acceptance of a wide variety of things.
Example
Her catholicity of interests makes her a fascinating person.
A2 adverb /ˈsɜː.tən.li/

Certainly

Meaning
without doubt; definitely; used to agree or give permission
Example
I will certainly help you with this project.
B1 verb /kənˈkluːd/

conclude

Meaning
to bring to an end; to decide or determine after consideration
Example
We will conclude the meeting at five o'clock.
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 verb /kənˈsoʊl/

console

Meaning
to comfort someone who is sad or disappointed; to provide solace
Example
She tried to console her friend after the loss.
C1 noun ˌkʌl.mɪˈneɪ.ʃən

culmination

Meaning
The highest or climactic point of something, especially as attained after a long time.
Example
The project reached its culmination after years of effort.