corrosive
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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.
B2 verb /kənˈfes/

confess

Meaning
to admit guilt or wrongdoing; to acknowledge
Example
He confessed his mistake to his teacher.
A1 noun /ˈkʌl.ər/

Colour

Meaning
the property possessed by an object of producing different sensations on the eye as a result of the way it reflects light; hue, tint, shade
Example
What is your favorite colour for painting the bedroom walls?
C1 adjective /ˈkɜːrsəri/

cursory

Meaning
Hasty and therefore not thorough or detailed.
Example
He gave the report only a cursory glance before the meeting.
B1 noun /ˈsɪt.ɪ.zənz/

citizens

Meaning
A legally recognized subject or national of a state or commonwealth.
Example
Citizens must follow pollution regulations.
B2 noun /ˌkɒrəˈleɪʃən/

correlation

Meaning
a mutual relationship or connection between two or more things
Example
Researchers found a strong correlation between diet and heart disease.
C1 adjective /kənˈsɪliətɔːri/

conciliatory

Meaning
intended to make someone less angry or more agreeable; soothing
Example
She spoke in a conciliatory tone to ease the tension.
C1 noun /ˈkæzəm/

chasm

Meaning
a deep fissure in the earth's surface or a wide difference between people or ideas
Example
There was a great chasm between the two political parties.
A2 noun /ˈkændl/

candle

Meaning
a stick of wax with a wick that burns to give light
Example
She lit a candle during the power cut.
C2 verb /kəˈmɪŋɡəl/

commingle

Meaning
To mix or blend different things together.
Example
The charity does not commingle donations with operational funds.
B2 noun /ˈkæp.sɪ.kəm/

Capsicum

Meaning
sweet pepper; bell pepper; colorful vegetable used in cooking
Example
Add red and green capsicum to make the dish colorful and nutritious.
B1 verb kleɪmz

claims

Meaning
To take someone's life, to cause death
Example
Workplace pollution claims thousands of lives annually.
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 verb /kəˈleɪt/

collate

Meaning
to collect, arrange, and combine in order
Example
The secretary collated the reports before the meeting.
B1 noun /keɪv/

Cave

Meaning
a large underground chamber in a hill or cliff; a hollow space in rock
Example
The explorers discovered ancient paintings on the cave walls.
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.
C1 verb koʊˈɜrs

coerce

Meaning
To force someone to do something against their will using threats or intimidation.
Example
The manager tried to coerce the employees into working overtime.
B2 noun /ˈkɑr.ɡoʊ ʃɪp/

Cargo ship

Meaning
a ship or vessel that carries goods and materials from one port to another
Example
The cargo ship transported containers filled with electronics across the ocean.
B2 noun /ˈkaʊnsɪlər/

councilor

Meaning
an elected member of a council, especially a local government body
Example
The councilor held a public meeting to discuss local issues.
B2 adjective /ˈkɒn.trər.i/

Contrary

Meaning
opposite in nature, direction, or meaning; completely different
Example
Contrary to popular belief, cats can be very social animals.
B1 noun /ˈkʌˈs.təm/

Custom

Meaning
a traditional practice or behavior; duties levied on imports; habitual practice
Example
It is a local custom to remove shoes before entering someone's home.
C2 verb /ˌkaʊntərˈveɪl/

countervail

Meaning
to offset or counteract the effect of something
Example
The benefits of the new policy countervail its drawbacks.
B1 noun /ˌsiːiːˈoʊ/

ceo

Meaning
The highest-ranking person in a company, responsible for overall management.
Example
The CEO announced a new strategy for the company.
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.
A2 noun/verb /ˈsɜːrkəl/

circle

Meaning
a round shape; to move all the way around something
Example
The children sat in a circle.
C2 noun /ˈkrɪsəndəm/

christendom

Meaning
the worldwide body or community of Christians
Example
The news spread quickly across Christendom.
B2 verb /kənˈsɜːrv/

conserve

Meaning
to protect something from harm or destruction; to use resources carefully to avoid waste
Example
We must conserve water during the dry season.
B1 adjective /kənˈtɪn.ju.əs/

continuous

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

chunk

Meaning
a thick or solid piece of something
Example
She cut the cake into large chunks.
C1 verb /ˈkælɪˌbreɪt/

calibrate

Meaning
To adjust or mark something so it can be used accurately; to standardize.
Example
The technician calibrated the machine before starting the experiment.
C1 noun /ˈsɪstərn/

cistern

Meaning
A tank or container for storing water, usually for household use.
Example
The old house still had a cistern to collect rainwater.
B1 verb /ˈkælkjəˌleɪt/

calculate

Meaning
to determine by mathematical computation; to estimate
Example
I need to calculate the total cost.
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.
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.
B1 verb /kənˈsuːm/

consume

Meaning
to eat or drink; to use up; to destroy completely
Example
We consume a lot of water during summer.
B2 adjective /kənˈtɛntɪd/

contented

Meaning
Feeling or expressing happiness and satisfaction.
Example
She was contented with her simple life.
C2 noun /kroʊn/

crone

Meaning
An old woman, often one who is thin and ugly, sometimes associated with witch-like qualities.
Example
The children were scared by the story of the wicked crone in the forest.
B2 noun ˈkærɪktər dɪˈvɛləpmənt

character development

Meaning
The process of creating a believable character in fiction by giving the character depth and personality.
Example
The character development of Sydney Carton is profound.
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.
C1 noun /kjʊˈreɪtər/

curator

Meaning
a person who is responsible for the care and management of a museum, gallery, or collection
Example
The curator organized a new exhibition of ancient artifacts.
B2 noun /ˌkovuːɪɡˈzɪs.təns/

Co-existence

Meaning
the state of existing together at the same time or in the same place; peaceful cohabitation
Example
The peaceful co-existence of different cultures makes this city unique.
B2 adjective ˌkæt.əˈstrɑː.fɪk

catastrophic

Meaning
Involving or causing sudden great damage or suffering.
Example
Climate change has catastrophic consequences.
C1 adjective /ˌkætəˈklɪzmɪk/

cataclysmic

Meaning
Relating to or denoting a violent natural event or upheaval.
Example
The war had cataclysmic effects on the nation's economy.
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.
B1 noun /ˈkæbɪn/

cabin

Meaning
a small shelter or house, often made of wood in a remote area
Example
They spent the weekend in a cozy cabin in the mountains.
C1 adjective /kənˈdʒiːniəl/

congenial

Meaning
pleasant and friendly because of having similar interests or qualities
Example
They found the café a congenial place to meet and talk.
A2 noun /ˈkrɪk.ɪt/

Cricket

Meaning
a jumping insect that makes a chirping sound by rubbing its wings together
Example
We could hear crickets chirping in the evening.
C2 noun /kɪˈrɒpədɪst/

chiropodist

Meaning
A healthcare professional who diagnoses and treats foot problems.
Example
The chiropodist treated her painful corns and calluses.
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 /ˈkaʊn.tər/

counter

Meaning
a flat surface in a shop, bank, or kitchen where transactions or work are done
Example
The cashier stood behind the counter.
B2 adverb /ˈkɒnsɪkwəntli/

consequently

Meaning
as a result; therefore
Example
He didn’t study, and consequently he failed the exam.
B1 noun /ˈkɒnsɪkwənsɪz/

consequences

Meaning
Results or effects of an action or condition.
Example
The consequences of ignoring safety protocols can be severe.
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.
B1 noun /kæˈʃɪər/

Cashier

Meaning
a person who handles payments and transactions in a store or bank
Example
The cashier scanned all the items and calculated the total bill.
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.
C1 verb /kəmˈpjuːt/

compute

Meaning
To calculate or determine by using a computer or mathematical methods.
Example
The software can compute the total cost in seconds.
C1 noun /krʌtʃ/

crutch

Meaning
a support used by someone injured to walk; also something relied upon for support or help
Example
He had to use crutches after breaking his leg.
B2 noun /ˌkɑn.trəˈdɪk.ʃən/

Contradiction

Meaning
a combination of statements, ideas, or features which are opposed to one another; inconsistency
Example
There was a clear contradiction between his words and his actions.
B1 noun /kɔːr/

core

Meaning
the central or most important part of something
Example
Honesty is at the core of their values.
B2 adjective /ˈkɒnʃəs/

conscious

Meaning
Aware of and responding to one's surroundings; awake.
Example
She was fully conscious after the surgery.
B2 noun /kəˈlɛstərɒl/

cholesterol

Meaning
a fatty substance found in the blood, high levels of which can cause health problems
Example
High cholesterol can increase the risk of heart disease.
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.
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 noun /ˈkəʊ.tɪŋ/

coating

Meaning
A protective or decorative layer applied to a surface.
Example
A protective coating prevents rust formation.
B1 verb /kənˈtrɪbjuːt/

contribute

Meaning
to give something, especially money, time, or effort, to help achieve or provide something
Example
Everyone contributed money to buy a farewell gift for the teacher.
C1 noun /ˈkoʊhɔːrts/

cohorts

Meaning
Groups of people who share a common feature or experience.
Example
Researchers compared the health outcomes of different cohorts.
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.
C1 noun /ˈkælɪbər/

caliber

Meaning
The quality of someone's ability or character; the internal diameter of a gun barrel.
Example
The university attracts students of high caliber.
C1 adjective /ˈkɑːr.di.æk/

cardiac

Meaning
Relating to the heart.
Example
The patient was admitted with a cardiac condition.
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 /ˌkɑːrt ˈblɑːnʃ/

carte blanche

Meaning
complete freedom to act as one wishes
Example
The manager gave her team carte blanche to design the project.
B2 noun /ˈkʌt.lət/

Cutlet

Meaning
a small piece of meat, especially veal or lamb, for frying or grilling
Example
She served delicious chicken cutlets for dinner.
B2 noun /kənˈstreɪnt/

constraint

Meaning
a limitation or restriction
Example
Time is the biggest constraint in completing the project.
B2 noun ˈkɑː.bən

carbon

Meaning
The chemical element of atomic number 6, occurring as diamond, graphite, and charcoal.
Example
Carbon emissions must be controlled.
B1 noun /kruː/

crew

Meaning
A group of people working together, especially on a ship, aircraft, or project.
Example
The ship's crew worked tirelessly during the storm.
B1 noun /tʃɑːrm/

Charm

Meaning
the power or quality of giving delight or arousing admiration; a magical spell or talisman
Example
Her natural charm and wit made her popular at social gatherings.
C1 verb /tʃæsˈtaɪz/

chastise

Meaning
to criticize or punish severely
Example
The teacher chastised the student for being late.
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'.
A2 noun /kɔːrn/

Corn

Meaning
a tall cereal plant that produces kernels on large ears; maize
Example
We grilled corn on the cob for dinner.
A1 verb /kʊk/

cook

Meaning
to prepare food by heating; to make food ready to eat
Example
My mother loves to cook traditional dishes.
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.
C1 verb /ˈkɒr.ə.leɪt/

correlate

Meaning
To have a mutual relationship or connection; to establish a relationship between two or more things.
Example
Researchers found that diet and mental health correlate strongly.
C1 verb /kriːk/

creak

Meaning
to make a high-pitched, squeaking noise when moved
Example
The old door creaked as she opened it.
A2 noun /tʃæns/

chance

Meaning
An opportunity or possibility of something happening.
Example
He took a chance and applied for the job.
B1 verb kənˈsjuːmz

consumes

Meaning
Use up (a resource); eat, drink, or ingest (food or drink).
Example
An individual consumes around 20 kg of plastic annually.
A2 adjective, noun /tʃaɪˈniːz/

chinese

Meaning
relating to China, its people, or its language
Example
We went to a Chinese restaurant last night.
C1 adjective ˈkrɪp.tɪk

cryptic

Meaning
Having a meaning that is mysterious or obscure; difficult to understand.
Example
The message was cryptic and hard to decipher.
C1 verb ˌsɝː.kəmˈvent

circumvent

Meaning
To cleverly avoid or find a way around obstacles or rules.
Example
He tried to circumvent the security system.
C1 noun /ˈkæv.əl.ri/

Cavalry

Meaning
soldiers who fight on horseback; the part of an army formerly composed of troops on horseback
Example
The cavalry charged across the field with great speed.
C1 noun /ˈkɒlərə/

cholera

Meaning
An infectious disease of the small intestine causing severe vomiting and diarrhea.
Example
The village suffered an outbreak of cholera after the flood.
C2 noun /ˌkʌl.pəˈbɪl.ɪ.ti/

culpability

Meaning
responsibility for a fault or wrong; blameworthiness
Example
The jury considered his level of culpability in the crime.
C1 verb /ˈkætəˌlaɪz/

catalyze

Meaning
To cause or accelerate a reaction or change.
Example
The new law catalyzed reforms across the sector.
C2 verb /ˈkævəl/

cavil

Meaning
to make petty or unnecessary objections
Example
She caviled at every detail of the plan.
B1 verb /kənˈɡrætʃʊleɪt/

congratulate

Meaning
to praise someone for an achievement or for a special occasion
Example
I want to congratulate you on your promotion.
C1 noun /səˈvɪləti/

civility

Meaning
Polite and courteous behavior.
Example
He treated his opponent with civility despite their differences.
B1 adverb /ˈkɑːm.li/

Calmly

Meaning
in a peaceful way without showing strong emotions; quietly and without excitement
Example
She spoke calmly despite being angry.
B1 noun /sərˈtɪfɪkət/

certificate

Meaning
a document serving as proof of achievement or qualification
Example
She received a certificate for completing the course.
C1 noun /kræɡ/

crag

Meaning
a steep or rugged cliff or rock face
Example
The hikers climbed the jagged crag to reach the summit.
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 /kəˈloʊkwiəˌlɪzəm/

colloquialism

Meaning
a word or phrase used in informal speech or writing
Example
The novel is full of regional colloquialisms.
C1 noun /ˈkɒləmnɪst/

columnist

Meaning
a journalist who regularly writes articles or opinions for a newspaper or magazine
Example
The columnist wrote an article about climate change.
C1 noun /ˈkʌn.stə.bəl/

constable

Meaning
a police officer of the lowest rank
Example
The constable directed traffic at the busy intersection.
B2 verb /kreɪv/

crave

Meaning
to have a strong desire for something
Example
She craves adventure and often travels to remote places.
C2 noun /ˈkætɪtʃuː/

Catechu

Meaning
an extract from a tropical Asian plant, used in tanning and dyeing
Example
Catechu extract is commonly used in traditional medicine.
C1 noun /ˈkænən/

canon

Meaning
A general law, rule, principle, or collection of sacred books accepted as genuine.
Example
The book is now considered part of the literary canon.
A2 noun /ˈkæb.ɪdʒ/

Cabbage

Meaning
a cultivated plant eaten as a vegetable, having thick green or purple leaves surrounding a spherical heart
Example
She chopped the fresh cabbage to make coleslaw for dinner.
C2 noun /ˈkeɪ.nə.naɪt/

canaanite

Meaning
a member of a people who lived in the ancient land of Canaan in the Middle East
Example
The Canaanites were known for their advanced trade networks.
C1 adjective /klæd/

clad

Meaning
dressed or covered in a particular way
Example
The knight was clad in shining armor.
B2 noun /ˌkoʊəˈlɪʃən/

coalition

Meaning
a temporary alliance of distinct parties, persons, or states for joint action
Example
Several parties formed a coalition to pass the new law.
C1 noun, adjective /ˈsɛntənəri/ or /sɛnˈtɛnəri/

centenary

Meaning
The hundredth anniversary of a significant event; relating to a period of 100 years.
Example
The school celebrated its centenary with a grand event.
B2 noun /kəˈmɒ.dɪ.tiz/

commodities

Meaning
Raw materials or primary agricultural products that can be bought and sold.
Example
The prices of commodities like oil and gold fluctuate frequently.
C2 noun /ˌkɒməˈsɛəriət/

commissariat

Meaning
A department responsible for supplying food and equipment, especially in the military.
Example
The army commissariat ensured that the soldiers had enough supplies.
C1 verb /ˌkɒndɪˈsɛnd/

condescend

Meaning
to behave as if one is superior while being gracious to others
Example
He would not condescend to answer such a trivial question.
C1 noun ˌkɒn.ʃiˈen.ʃəs.nəs

conscientiousness

Meaning
The quality of wishing to do one's work or duty well and thoroughly; diligence.
Example
Her conscientiousness in work led to a well-organized project.
C2 noun /ˈkɑr.mɪn/

Carmine

Meaning
a vivid crimson color; a red pigment obtained from cochineal
Example
The artist mixed carmine with white to create a beautiful pink shade.
B2 noun /ˈkaʊn.səl.ər/

counselor

Meaning
a person trained to give guidance on personal, social, or psychological problems
Example
The school counselor helped the student deal with stress.
C2 adjective /ˌkɒnsæŋˈɡwɪniəs/

consanguineous

Meaning
Related by blood; descended from the same ancestor.
Example
The study focused on genetic disorders in consanguineous families.
C1 noun /ˌkɒn.stəˈleɪ.ʃən/

constellation

Meaning
a group of stars forming a recognizable pattern in the night sky
Example
Orion is one of the most famous constellations.
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.
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.
C2 noun /kəˈdævər/

cadaver

Meaning
A dead human body, especially one used for medical study.
Example
Medical students dissected the cadaver to learn about human anatomy.