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B2 noun /kənˌfɪɡəˈreɪʃən/

configuration

Meaning
an arrangement of parts or elements in a particular form or structure
Example
The configuration of the system needs to be adjusted for better performance.
C2 noun /ˌkɑːnfɔːrˈmeɪʃən/

conformation

Meaning
The shape, structure, or arrangement of something.
Example
The scientist studied the molecular conformation of the protein.
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.
A2 adverb /ˈklɪrli/

clearly

Meaning
In a way that is easy to perceive, understand, or see.
Example
She spoke clearly so that everyone could understand.
B2 verb /kriːp/

creep

Meaning
to move slowly and quietly; to make someone feel uncomfortable
Example
She crept quietly up the stairs to avoid waking anyone.
C2 verb /ˈkɒndʒʊɡeɪt/

conjugate

Meaning
to list the different forms of a verb according to tense, person, and number
Example
Students are asked to conjugate the verb 'to be'.
B1 adjective /ˈkɒn.stənt/

Constant

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

curtail

Meaning
to reduce or limit something, especially something considered undesirable
Example
The company had to curtail its spending due to budget cuts.
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.
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.
A2 verb /ˈkɑːpi/

copy

Meaning
to make an identical reproduction of something
Example
Please copy this document for the meeting.
A2 adjective /kəˈneɪdiən/

canadian

Meaning
Relating to Canada or its people.
Example
She enjoys Canadian culture and traditions.
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.
B1 noun /kluː/

clue

Meaning
a piece of evidence or information used in the detection of a crime or solving a puzzle
Example
The detective found a clue near the window.
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.
A1 noun /ˈkʌl.ər/

color

Meaning
The property possessed by an object of producing different sensations on the eye as a result of the way it reflects or emits light.
Example
Blue is her favorite color.
A1 noun /ˈkrɪsməs/

christmas

Meaning
an annual festival celebrating the birth of Jesus Christ, observed on December 25
Example
Families gather to celebrate Christmas with joy and love.
C1 noun /ˈkætərækt/

cataract

Meaning
A medical condition causing clouding of the eye's lens; also a large waterfall.
Example
The old man suffered from cataracts in both eyes.
C1 adverb /ˈkrɒswaɪz/

Crosswise

Meaning
in the form of a cross; diagonally across
Example
Place the logs crosswise to build a stable fire.
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.
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.
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 /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 /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.
C1 noun /ˈkʌn.stə.bəl/

constable

Meaning
a police officer of the lowest rank
Example
The constable directed traffic at the busy intersection.
A2 noun /kənˌɡrætʃ.əˈleɪ.ʃənz/

Congratulations

Meaning
words expressing praise for an achievement or good wishes on a special occasion
Example
Congratulations on your promotion! You really deserved this success.
B2 noun /ˈsel.ər.i/

Celery

Meaning
a green vegetable with long crisp stems that can be eaten raw or cooked
Example
I added chopped celery to the soup for extra flavor.
C1 noun /kənˈtʃɛrtoʊ/

concerto

Meaning
a musical composition for one or more solo instruments accompanied by an orchestra
Example
She played a Mozart concerto with the orchestra.
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 /kəˈlʌmnieɪt/

calumniate

Meaning
To make false and damaging statements about someone; to slander.
Example
He was furious when he realized they had calumniated his reputation.
A1 noun /tʃeɪndʒ/

change

Meaning
The act or instance of making or becoming different.
Example
Change is inevitable for growth.
B2 noun, verb /kloʊk/

cloak

Meaning
a loose outer garment; to cover, hide, or disguise
Example
The spy cloaked his identity with a false name.
C1 noun /ˈʃoʊ.vəˌnɪz.əm/

chauvinism

Meaning
Excessive or prejudiced support for one's own cause, group, or gender, often with contempt for others.
Example
The company's culture was criticized for promoting male chauvinism.
B2 noun /kənˌtɪn.juˈeɪ.ʃən/

continuation

Meaning
the action of carrying something on over time; extension
Example
The continuation of the series was announced after the finale.
A1 noun /ˈsɪti/

city

Meaning
a large town or an urban area with its own government
Example
Dhaka is the largest city in Bangladesh.
C2 noun /ˈsaɪ.nəˌʃʊr/

cynosure

Meaning
A person or thing that is the center of attention or admiration.
Example
She was the cynosure of all eyes at the party.
C2 adjective /kənˈkɒmɪtənt/

concomitant

Meaning
Naturally accompanying or associated with something.
Example
Increased stress is often concomitant with long working hours.
B2 verb /kənˈtæmɪneɪt/

contaminate

Meaning
To make something impure, dirty, or harmful by contact with a poisonous or polluting substance.
Example
The river was contaminated by industrial waste.
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.
C2 noun /ˈkɒrənɛt/

coronet

Meaning
a small crown, especially one worn by a prince, princess, or noble
Example
She wore a delicate coronet on her head for the ceremony.
A2 noun /ˈkɒmədi/

comedy

Meaning
A type of entertainment that is intended to make people laugh.
Example
We watched a hilarious comedy at the theater.
B1 noun /ˈkæt.ər.pɪl.ər/

Caterpillar

Meaning
the larva of a butterfly or moth that feeds on plants
Example
The caterpillar ate all the leaves on the plant.
B2 noun /kəˈdɛt/

cadet

Meaning
A young trainee in the armed forces, police, or other organization.
Example
The cadet marched proudly in the parade.
C1 noun /kənˈfɛdərəsi/

confederacy

Meaning
a group of states, people, or organizations united for a common purpose
Example
The southern states formed a confederacy during the civil war.
B2 noun /ˌkɒmplɪˈkeɪʃən/

complication

Meaning
A problem or difficulty that makes a situation harder to deal with.
Example
His illness led to serious complications after surgery.
C2 noun /ˈkɔːrpəskəl/

corpuscle

Meaning
a small particle or cell, especially a blood cell
Example
Red corpuscles carry oxygen throughout the body.
C2 noun, adjective /klɛərˈvɔɪənt/

clairvoyant

Meaning
a person who claims to have clairvoyance; having the ability to see beyond normal senses
Example
The clairvoyant predicted that she would travel abroad soon.
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 /ˈkʌvənənt/

covenant

Meaning
a formal agreement or promise, often legally binding
Example
The landlord and tenant signed a covenant to maintain the property.
B1 noun /kəmˈpəʊzə(r)/

composer

Meaning
a person who writes music, especially classical music
Example
The composer is working on a new symphony.
B2 noun /ˈkɒŋɡrɛs/

congress

Meaning
a formal meeting or assembly, especially of representatives for discussion
Example
The international congress on climate change will be held next year.
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.
B2 verb, noun /kəˈmjuːt/

commute

Meaning
Verb: to travel regularly between home and work; Noun: the journey to and from work.
Example
He commutes two hours every day to reach his office.
C2 adjective /ˌkɒnsæŋˈɡwɪniəs/

consanguineous

Meaning
Related by blood; descended from the same ancestor.
Example
The study focused on genetic disorders in consanguineous families.
C1 adjective /ˈkrɛdɪtəbl/

creditable

Meaning
Deserving praise or acknowledgment, though not necessarily outstanding.
Example
She made a creditable effort in completing the project on time.
A2 noun /ˈkæptɪn/

Captain

Meaning
a military officer of middle rank; the person in command of a ship or aircraft
Example
The captain ordered his troops to advance forward.
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 noun /kæpˈtɪv.ɪ.ti/

Captivity

Meaning
the condition of being imprisoned or confined
Example
After years of captivity, the prisoner was finally released.
C1 adjective/verb /ˈkɒn.sə.mət/

consummate

Meaning
To complete or perfect something with great skill
Example
He is a consummate artist with years of experience.
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.
B1 adjective /ˈkriːmi/

creamy

Meaning
having a smooth, rich texture like cream
Example
She poured a creamy sauce over the pasta.
C1 adjective /ˈkɑːr.di.æk/

cardiac

Meaning
Relating to the heart.
Example
The patient was admitted with a cardiac condition.
B2 adjective /kəˈreɪdʒəs/

Courageous

Meaning
brave; fearless; showing courage in the face of danger
Example
The courageous firefighter rescued the family from the burning building.
B1 noun /ˈtʃær.ɪ.ti/

Charity

Meaning
the voluntary giving of help to those in need; kindness and tolerance in judging others
Example
The wealthy businessman donated millions to charity for education.
C1 noun /krʊk/

crook

Meaning
a dishonest person, especially a criminal
Example
The police finally caught the crook who had been stealing cars.
B2 noun /kənˈsɛnt/

consent

Meaning
permission for something to happen or agreement to do something
Example
She gave her consent before the operation.
B1 noun, verb /ˈkɒndʌkt/ (noun), /kənˈdʌkt/ (verb)

conduct

Meaning
to organize or carry out; or a person's behavior
Example
The teacher conducted the exam fairly.
C2 adjective /ˈkʌsɪd/

cussed

Meaning
Annoyingly stubborn or difficult.
Example
He was too cussed to admit his mistake.
C2 adjective /ˈkoʊltɪʃ/

coltish

Meaning
Playful, energetic, and not fully mature or disciplined.
Example
The coltish boy ran around the field without a care.
A2 noun /ˈkɔːrnər/

corner

Meaning
the place where two edges or sides meet
Example
The store is just around the corner.
C1 verb /kənˈviːn/

convene

Meaning
to come together or assemble, especially for a meeting or formal gathering
Example
The board will convene tomorrow to discuss the new policy.
C2 noun /ˈkrɪptəɡræm/

cryptogram

Meaning
a text written in code or cipher
Example
The detective solved the cryptogram hidden in the letter.
C1 noun /tʃæmp/

champ

Meaning
an informal word for champion or winner.
Example
He is the new champ of the boxing tournament.
C2 noun /ˈkɒn.tjʊ.mə.li/

contumely

Meaning
insulting or humiliating treatment
Example
He endured the contumely of his colleagues with patience.
C2 noun /ˈkjʊriˌoʊ/

curio

Meaning
a small unusual or interesting object, often collected for its rarity
Example
She bought a curio from the antique shop.
B1 verb /kənˈsɪst/

consist

Meaning
to be made up or composed of certain parts or elements
Example
The committee consists of five members.
C2 adjective /kəmˈbʌstɪbəl/

combustible

Meaning
Capable of catching fire and burning easily.
Example
Dry leaves are highly combustible.
C1 verb /ˈsenʃər/

censure

Meaning
to criticize severely; to express strong disapproval
Example
The committee censured the politician for his misconduct.
C1 noun /tʃɪt/

Chit

Meaning
a short note, typically a brief informal letter; a voucher for a sum owed
Example
She left a chit on the table asking him to call her back.
C1 verb /kliːv/

cleave

Meaning
to split or divide; to cut through forcefully
Example
He used an axe to cleave the wood.
B2 adjective /kənˈtɛntɪd/

contented

Meaning
Feeling or expressing happiness and satisfaction.
Example
She was contented with her simple life.
B2 noun /ˈkɒmpoʊst/

compost

Meaning
decayed organic matter used as fertilizer
Example
The gardener added compost to enrich the soil.
B2 noun /tʃʌŋk/

chunk

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

cringe

Meaning
To shrink back in fear, embarrassment, or discomfort.
Example
She cringed when she remembered her mistake.
B2 verb /kənˈfɜːr/

confer

Meaning
to discuss something important or to grant or bestow something
Example
The committee will confer to decide on the new policy.
A2 noun /ˈkɒnsət/

concert

Meaning
A musical performance given by one or more singers or musicians.
Example
We went to a concert last night and enjoyed the live music.
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.
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 /ˈkreɪvən/

craven

Meaning
cowardly; lacking courage
Example
He was too craven to stand up for his beliefs.
C1 verb /kəˈluːd/

collude

Meaning
To secretly cooperate or conspire with others, often for a deceitful purpose.
Example
The two companies colluded to fix prices in the market.
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.
C1 verb kəˈrɒb.ə.reɪt

corroborate

Meaning
Confirm or give support to a statement, theory, or finding.
Example
The witness corroborated the defendant's testimony.
C2 noun /ˈklærɪən/

Clarion

Meaning
a shrill narrow-tubed war trumpet; a medieval trumpet with a clear piercing tone
Example
The clarion sounded across the battlefield to signal the charge.
B1 noun /klɪf/

cliff

Meaning
a high, steep face of rock or earth
Example
The waves crashed against the bottom of the cliff.
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 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 /ˈkæʒ.u.əl.ti/

Casualty

Meaning
a person killed or injured in a war or accident; a victim of circumstances
Example
The hospital treated many casualties from the car accident.
B2 verb /kəmˈplaɪ/

comply

Meaning
to act in accordance with a rule, request, or law
Example
All companies must comply with safety regulations.
C1 verb /kɑːrp/

carp

Meaning
to complain or find fault continually, often about trivial matters
Example
She tends to carp about the smallest inconveniences.
A1 verb /kætʃ/

catch

Meaning
to grab something that is moving; to get a disease; to understand
Example
Can you catch the ball I'm throwing?
C1 adjective /ˈkʌlpəbl̩/

culpable

Meaning
deserving blame or responsibility for a wrongdoing
Example
The judge found him culpable for the accident.
C2 noun /ˈkloʊtʃər/

cloture

Meaning
a procedure for ending a debate and taking a vote.
Example
The Senate invoked cloture to end the lengthy debate.
B1 noun /kənˌsɪdəˈreɪʃən/

consideration

Meaning
careful thought or attention to something before making a decision
Example
After much consideration, she accepted the job offer.
C1 noun koʊˈhisɪv ˈjunɪts

cohesive units

Meaning
Groups or organizations that work together as unified wholes, with members closely bound together.
Example
Early humans formed cohesive units for survival.
C2 noun /kəˌrɒbəˈreɪʃən/

corroboration

Meaning
evidence that confirms or supports a statement, theory, or finding
Example
The documents provided strong corroboration of her claims.
C2 noun /ˈkɒliər/

collier

Meaning
a person who works in coal mines or a ship carrying coal
Example
The collier spent long hours underground extracting coal.
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.
A1 verb /kʌm/

come

Meaning
to move toward a place; to arrive at a place
Example
Please come to my birthday party.
B2 adjective ˈkʌtɪŋ ˌɛdʒ

cutting-edge

Meaning
The most advanced or innovative; at the forefront of development.
Example
This company develops cutting-edge technology.
C1 verb /ˈkɒnsɔːrt/

consort

Meaning
To associate with someone, typically with disapproval; also, a spouse of a reigning monarch.
Example
He was criticized for consorting with criminals.
A2 noun /tʃeɪn/

chain

Meaning
a connected series of metal rings used for fastening or securing things; a series of connected events or businesses
Example
He wore a gold chain around his neck.
C1 noun /kənˈfɔːrməns/

conformance

Meaning
The act of conforming to a rule, standard, or law.
Example
The product was tested for conformance with safety standards.
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 /ˈkɒrɪdʒəbl/

corrigible

Meaning
capable of being corrected or improved
Example
The student's mistakes were corrigible with practice.
B1 noun /kəmˈpænjən/

companion

Meaning
a person or animal you spend time with or travel with
Example
He was my companion during the long journey.
C1 noun /ˌkɒnfləˈɡreɪʃən/

conflagration

Meaning
A large, destructive fire that destroys a great deal of land or property.
Example
The forest was devastated by a massive conflagration that lasted for days.
B2 noun ˌkɒm.prɪˈhɛn.ʃən

comprehension

Meaning
The ability to understand something; understanding or grasp of knowledge.
Example
Reading improves vocabulary and comprehension skills.
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.