clog
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C1 verb, noun /klɑːɡ/

clog

Meaning
to block or become blocked; a type of heavy wooden shoe
Example
The sink was clogged with food waste.
C2 verb /kɔːk/

caulk

Meaning
to seal a crack or gap with a waterproof filler
Example
He caulked the window frames to stop the draft.
B2 noun, adjective /ˈkɒrəl/

coral

Meaning
a hard, rock-like marine organism formed by tiny sea animals; a pinkish-orange color resembling coral
Example
The coral in the reef provides shelter for many sea creatures.
A2 adjective /ˈkjʊriəs/

curious

Meaning
Eager to know or learn something.
Example
The curious explorers asked questions about Antarctica.
C2 noun /kənˈfɛsər/

confessor

Meaning
A person who confesses sins or secrets, especially to a priest.
Example
The confessor listened patiently to the troubled man.
B2 noun /kɜːrd/

Curd

Meaning
a white dairy product made by coagulating milk; yogurt
Example
She added fresh curd to the salad for a tangy flavor.
B1 adjective /kənˈtɪn.ju.əs/

continuous

Meaning
forming an unbroken whole; without interruption
Example
The factory operates on a continuous 24-hour schedule.
B1 noun /kraʊn/

Crown

Meaning
a circular ornamental headdress worn by a monarch as a symbol of authority
Example
The queen wore a magnificent crown during the coronation ceremony.
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.
C1 noun /ˈkɒntrəbænd/

contraband

Meaning
goods that are illegal to import, export, or possess
Example
The police seized a shipment of contraband cigarettes.
C1 adjective /ˈkɒɡ.nɪ.zənt/

cognizant

Meaning
Having knowledge or being aware of something.
Example
He was cognizant of the risks before starting the project.
C1 adjective /ˌkɒnvəˈlɛsnt/

convalescent

Meaning
recovering from an illness or medical treatment
Example
The hospital has a special ward for convalescent patients.
C1 adverb /ˌkɒnfɪˈdenʃəli/

Confidentially

Meaning
in a confidential manner; secretly; privately
Example
The information was shared confidentially between the two managers.
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 adverb /ˈkrɒswaɪz/

Crosswise

Meaning
in the form of a cross; diagonally across
Example
Place the logs crosswise to build a stable fire.
C1 adjective /ˌkɒndɪˈsɛndɪŋ/

condescending

Meaning
having or showing an attitude of patronizing superiority
Example
Her condescending tone upset her colleagues.
A2 noun/verb /kənˈsɜːrn/

concern

Meaning
to relate to or affect; a matter of worry or interest
Example
Environmental issues concern all of us.
A2 noun /ˈkæm.əl/

Camel

Meaning
a large animal with one or two humps on its back that lives in hot dry places
Example
The camel walked slowly across the desert sand.
C1 adjective sɪˈlɛstʃəl

celestial

Meaning
Positioned in or relating to the sky, or outer space as observed in astronomy.
Example
The celestial bodies in the sky were clearly visible last night.
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.
A2 noun /keɪs/

case

Meaning
A particular situation, occurrence, or an instance of something; also a container or covering for something.
Example
In this case, we should wait for further instructions.
C1 verb /kənˈdʒɛst/

congest

Meaning
To block or overcrowd a space, making movement or flow difficult.
Example
Heavy traffic can congest the city streets during rush hour.
A2 noun /kɔːrs/

course

Meaning
a direction, path, or a set of educational lessons
Example
She enrolled in a computer science course.
C1 verb /ˈkʌl.mɪ.neɪt/

culminate

Meaning
To reach the final or climactic stage of a process or activity.
Example
Years of hard work culminated in his success.
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.
B1 verb kleɪmz

claims

Meaning
To take someone's life, to cause death
Example
Workplace pollution claims thousands of lives annually.
C2 verb /ˈkɒdʒɪteɪt/

cogitate

Meaning
to think deeply about something; to meditate or reflect
Example
He sat by the river to cogitate on his future plans.
C2 noun /ˌkæl.sɪ.fɪˈkeɪ.ʃən/

calcification

Meaning
The process of calcium accumulation in soil, making it hard.
Example
Calcification reduces soil permeability and affects crop growth.
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.
C1 verb /ˌkɒm.pɑːtˈmen.təl.aɪz/

compartmentalize

Meaning
To divide into sections or categories; to separate things into compartments.
Example
To increase efficiency, he compartmentalized his work tasks.
C1 adjective /ˈkoʊpiəs/

copious

Meaning
abundant in supply or quantity
Example
She took copious notes during the lecture.
B2 noun /kənˈvɜː.ʃən/

Conversion

Meaning
The process of changing or causing something to change from one form to another.
Example
High website conversion rates indicate effective marketing.
C1 noun /ˈkɒnsjʊlət/

consulate

Meaning
the building or office where a consul works
Example
He went to the consulate to renew his visa.
C2 noun /tʃəˈmeɪ.li/

Chameli

Meaning
a variety of jasmine flower with small white fragrant petals
Example
The chameli flowers are commonly used to make garlands and perfumes.
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.
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.
A1 verb /tʃuːz/

choose

Meaning
to pick or select from several options
Example
I always choose healthy food options.
C2 adjective /kənˈvɪviəl/

convivial

Meaning
friendly, lively, and enjoyable; sociable
Example
The party had a convivial atmosphere with music and laughter.
B1 noun /kɒp/

cop

Meaning
a police officer (informal)
Example
The cop stopped the car for speeding.
B2 adjective /ˌkɒmplɪˈmɛntəri/

complementary

Meaning
combining in such a way as to enhance or emphasize the qualities of each other
Example
The two partners have complementary skills.
B2 noun, verb /kjuːb/

cube

Meaning
As a noun: a solid object with six equal square faces. As a verb: to cut food into small square pieces.
Example
She put a sugar cube in her tea.
C1 noun /krɪpt/

crypt

Meaning
an underground chamber, especially one beneath a church, used as a burial place
Example
The tourists explored the ancient crypt beneath the cathedral.
C2 noun /ˈsɜːrtɪˌtjuːd/

certitude

Meaning
Absolute certainty or conviction about something.
Example
She spoke with certitude about the outcome of the case.
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.
C1 noun, verb /klɒt/

clot

Meaning
a thick mass of coagulated liquid, especially blood; to form such a mass.
Example
The doctor removed a blood clot from the patient.
C1 adjective /kənˈdʒenɪtl/

congenital

Meaning
existing from birth, usually describing a disease or condition
Example
The child was born with a congenital heart defect.
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.
C1 noun /kəˈlɪɡrəfi/

calligraphy

Meaning
The art of beautiful and decorative handwriting.
Example
She took a course to improve her calligraphy skills.
C1 noun /kəˈθɑːrsɪs/

catharsis

Meaning
The process of releasing strong emotions, providing relief.
Example
Writing in her diary was a form of catharsis for her.
C2 verb /kənˈsɪlieɪt/

conciliate

Meaning
to stop someone from being angry; to win over by friendly acts
Example
He tried to conciliate the angry customer with an apology.
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.
B1 adverb /ˈkloʊsli/

closely

Meaning
in a way that is very near in space, time, or relationship; carefully and attentively
Example
The detective examined the evidence closely.
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.
C2 adjective /ˌkɑːmənˈsɛnsɪkəl/

commonsensical

Meaning
based on or showing sound practical judgment; sensible
Example
It was commonsensical to carry an umbrella on a rainy day.
A1 noun /kɑːrd/

card

Meaning
A small, flat piece of stiff paper or thin cardboard used for various purposes, such as identification, greetings, or playing games.
Example
She handed me her business card after the meeting.
A2 noun /tʃɜːrtʃ/

church

Meaning
a building used for public Christian worship
Example
The old church in the village was built in the 18th century.
C1 noun /saɪˈteɪʃən/

citation

Meaning
a quotation from or reference to a book, paper, or author
Example
The research paper included a citation from Shakespeare.
B2 verb /kənˈveɪ/

convey

Meaning
To communicate or make known; to transport or carry from one place to another.
Example
The teacher conveys the lesson clearly to students.
B1 noun /ˈtʃæmpiən/

champion

Meaning
a person who has defeated all rivals in a competition or fight.
Example
She became the champion after winning the final match.
A2 noun /kraɪm/

crime

Meaning
An illegal act punishable by law.
Example
The police are investigating the crime.
B1 adjective /ˈkeɪ.pə.bəl/

Capable

Meaning
having the ability, fitness, or quality necessary to do or achieve something; competent
Example
She is capable of handling complex problems.
C2 verb /ˈkælvɪnaɪz/

calvinize

Meaning
to imbue with the principles or doctrines of Calvinism
Example
The preacher sought to calvinize the community with strict teachings.
C2 adjective /kəˈmoʊdiəs/

commodious

Meaning
spacious and comfortable; having plenty of room
Example
They rented a commodious apartment in the city.
C1 noun /kəmˈpʌl.ʃən/

Compulsion

Meaning
the action or state of forcing or being forced to do something; an irresistible urge to behave in a certain way
Example
He felt a strong compulsion to check his phone every few minutes.
C1 noun /ˌkɒndʒʊˈɡeɪʃən/

conjugation

Meaning
the variation of the form of a verb to indicate tense, person, and number
Example
French verbs have complex conjugations.
B2 noun ˈsɜːrkjələr ɪˈkɒnəmi

circular economy

Meaning
An economic system aimed at eliminating waste and the continual use of resources through reuse, sharing, repair, refurbishment, remanufacturing and recycling.
Example
Adopting a circular economy can reduce waste.
C2 noun /kaɪˈmɪərə/

chimera

Meaning
A mythical creature with parts from different animals; also used to mean a fanciful illusion or unattainable dream.
Example
The idea of a perfect society is often a chimera.
A2 noun /ˈkoʊkənʌt/

Coconut

Meaning
a large brown seed with hard shell containing white flesh and coconut water
Example
We drank coconut water directly from the coconut.
C1 adjective ˌkɑːr.sɪ.nəˈdʒen.ɪk

carcinogenic

Meaning
Having the potential to cause cancer in living tissue.
Example
Processed meat contains carcinogenic compounds.
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.
C2 adjective /ˌser.ɪˈməʊ.ni.əs/

ceremonious

Meaning
marked by formality, politeness, or strict observance of customs
Example
He gave her a ceremonious bow before entering the hall.
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 /ˈkɒnsəvəˌtwɑː/

conservatoire

Meaning
A school specializing in the study of music or drama.
Example
She trained as a pianist at the Paris Conservatoire.
C2 noun /koʊˈæɡjələnt/

coagulant

Meaning
a substance that causes blood or another liquid to clot
Example
The doctor applied a coagulant to stop the bleeding quickly.
C1 noun /kəmˈprɛʃn̩/

compression

Meaning
The act of pressing or squeezing something into a smaller space.
Example
File compression helps reduce storage requirements.
B2 adjective /ˈtʃær.ɪ.tə.bəl/

Charitable

Meaning
generous in giving to those in need; showing kindness
Example
She is known for her charitable work in the community.
B2 noun /ˈkloʊʒər/

closure

Meaning
the action or process of closing something, or the sense of finality or resolution.
Example
The closure of the company left many employees without jobs.
C2 noun /ˈkɒkskoʊm/

Cockscomb

Meaning
a tropical plant with bright, velvety flowers that resemble a rooster's comb
Example
The bright red cockscomb flowers added vibrant color to the garden bed.
B2 verb /ˈkɑːŋkər/

conquer

Meaning
to overcome and take control of; to defeat in war; to master or overcome
Example
The army managed to conquer the enemy territory.
C2 noun /kənˈkɔːrdəns/

concordance

Meaning
Agreement; also an alphabetical index of the principal words in a book.
Example
There is a strong concordance between the two reports.
C2 adjective /kəmˈbʌstɪbəl/

combustible

Meaning
Capable of catching fire and burning easily.
Example
Dry leaves are highly combustible.
A2 noun /kæʃ/

cash

Meaning
money in the form of bills or coins, not checks or credit
Example
She paid the bill in cash.
C1 noun /kənˈsɜːvəˌtɪzəm/

conservatism

Meaning
A political or social philosophy promoting traditional institutions and resistance to change.
Example
Conservatism values tradition and gradual development.
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.
C1 adjective /ˈkɔː.zəl/

causal

Meaning
relating to or acting as a cause
Example
There is a causal link between smoking and cancer.
C2 noun /tʃæf/

Chaff

Meaning
the husks of corn or other seed separated by winnowing; worthless things; light-hearted joking
Example
The farmer separated the wheat from the chaff using traditional methods.
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.
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.
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 verb /kənˈsiːd/

concede

Meaning
to admit something is true or valid, often reluctantly
Example
She finally conceded that she was wrong.
B1 adjective /kənˈvɪnst/

convinced

Meaning
completely certain or sure about something
Example
She was convinced that he was telling the truth.
B1 noun /tʃɪl/

Chill

Meaning
an unpleasant feeling of coldness; a feeling of fear or anxiety; to relax
Example
There was a chill in the air as autumn approached.
C1 noun /ˈkʌl.ən.dər/

Colander

Meaning
a bowl-shaped kitchen utensil with holes in it used for draining food such as pasta or rice
Example
She drained the pasta using a colander.
B2 noun ক্লাইম্যাটিক কন্ডিশন্স

climatic conditions

Meaning
The atmospheric or weather patterns of a particular region.
Example
Specific climatic conditions are required for snowfall.
B1 verb /krɔːl/

crawl

Meaning
to move slowly on hands and knees; to move very slowly
Example
The baby crawled across the floor to reach the toy.
B2 noun /ˈkaʊnsələr/

counsellor

Meaning
a person trained to give guidance on personal, social, or psychological problems; an advisor
Example
She spoke to a counsellor to get advice about her career.
A2 verb /klɪk/

click

Meaning
to press a button on a computer mouse or similar device
Example
She clicked the link to open the website.
C1 noun /ˈkɑːrkəs/

carcass

Meaning
the dead body of an animal, especially after being slaughtered
Example
Vultures fed on the carcass left in the field.
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.
C2 noun /ˈkɒmɪti/

comity

Meaning
Courtesy and considerate behavior towards others; mutual respect.
Example
The meeting was conducted with comity and respect.
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.
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 verb /ˈkɒnvɪkt/

convict

Meaning
to find someone guilty of a crime in a court of law
Example
The court convicted him of theft.
C1 noun /ˈkɒndɪmənt/

condiment

Meaning
a substance such as salt, mustard, or ketchup that is used to add flavor to food
Example
Ketchup is a popular condiment in many countries.
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.
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.
A1 verb /kɔːl/

call

Meaning
to say something loudly; to telephone someone; to name
Example
Please call me when you arrive home.
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 verb /ˈklærɪfaɪ/

clarify

Meaning
to make clear; to explain more clearly
Example
The teacher clarifies the difficult concept.
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 noun /ˈsɪniæst/

cineast

Meaning
A film enthusiast or filmmaker; a person deeply interested in cinema.
Example
As a true cineast, she spends most weekends watching classic films.
B2 verb /kənˈstrʌkt/

construct

Meaning
to build or form something by putting parts together
Example
They plan to construct a new bridge over the river.
C2 noun ˌsɜːkəmˈspekʃən

circumspection

Meaning
The quality of being wary and unwilling to take risks; prudence.
Example
His circumspection ensured no mistakes were made.
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.
C1 adjective /ˈkɔː.stɪk/

caustic

Meaning
able to burn or corrode by chemical action; severely sarcastic
Example
Her caustic remarks hurt his feelings.
C1 noun /ˈkriː.dəns/

credence

Meaning
belief in or acceptance of something as true
Example
The witness gave credence to the defendant's alibi.
A2 noun /ˈkælɪndər/

calendar

Meaning
a system for organizing days, months, and years; a chart showing days of the year
Example
She marked her birthday on the calendar.
B1 adjective ˈkrɪtɪkəl

critical

Meaning
Extremely important; at a point of crisis or urgency.
Example
Addressing critical issues in education is imperative.
B2 adjective kəˈləʊ.ni.əl

colonial

Meaning
Relating to or characteristic of a colony or colonialism, especially involving the control of one country by another.
Example
Colonial rule suppressed local governance.
C1 adjective /kəˈləʊ.kwi.əl/

colloquial

Meaning
Used in ordinary conversation rather than formal speech or writing; informal language.
Example
His colloquial expressions made the speech relatable.
C2 adjective /kəˈnaɪ.vɪŋ/

conniving

Meaning
secretly scheming or plotting to help in wrongdoing
Example
He is a conniving politician who manipulates people for power.