concerned
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A2 adjective /kənˈsɜːnd/

concerned

Meaning
worried or anxious about something; involved or interested in something
Example
She was concerned about her mother's health.
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.
C2 noun /ˈkæm.fər/

Camphor

Meaning
a white crystalline substance with a strong aromatic smell, used in medicine and religious ceremonies
Example
The temple was filled with the fragrant smoke of burning camphor.
C2 noun /ˈkʌvən/

coven

Meaning
a group or gathering of witches
Example
The witches met secretly in a coven in the forest.
B2 noun /kəˈdɛt/

cadet

Meaning
A young trainee in the armed forces, police, or other organization.
Example
The cadet marched proudly in the parade.
B1 noun /kəmˈpəʊzə(r)/

composer

Meaning
a person who writes music, especially classical music
Example
The composer is working on a new symphony.
A2 verb /ˈkænsəl/

cancel

Meaning
to decide that something planned will not take place
Example
The flight was canceled due to heavy rain.
B2 noun /sərˈkʌmfərəns/

circumference

Meaning
the distance around the edge of a circle
Example
The teacher asked us to calculate the circumference of the circle.
C1 noun, verb /ˈkɒmjuːn/

commune

Meaning
Noun: a group of people living together and sharing possessions; Verb: to share one's thoughts or feelings intimately.
Example
She went to the countryside to commune with nature.
C1 noun /kəˈlæm.ɪ.ti/

Calamity

Meaning
an event causing great and often sudden damage or distress; a disaster
Example
The earthquake was a terrible calamity that affected thousands of families.
C2 adjective /kənˈdʒɛktʃərəl/

conjectural

Meaning
based on guesswork or incomplete evidence rather than certain knowledge
Example
His explanation was purely conjectural and lacked proof.
C1 noun /tʃæmp/

champ

Meaning
an informal word for champion or winner.
Example
He is the new champ of the boxing tournament.
C1 noun /ˈkɒn.vɔɪ/

convoy

Meaning
a group of vehicles or ships traveling together, often for protection
Example
The military convoy moved through the desert at dawn.
A2 noun /ˈkɒf.i ˈmeɪ.kər/

Coffee maker

Meaning
an electric appliance used to brew coffee automatically
Example
I use my coffee maker every morning to brew fresh coffee.
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.
C2 noun /kəˈpærɪsən/

caparison

Meaning
an ornamental covering for a horse; rich and elaborate clothing or decoration
Example
The king’s horse was adorned with a golden caparison.
C1 adjective ˈser.ɪ.brəl

cerebral

Meaning
Of the cerebrum of the brain.
Example
Cerebral functions regulate thoughts.
C2 noun /ˌkɒnfəˈriː/

conferee

Meaning
a person who takes part in a conference
Example
Each conferee received a badge at the registration desk.
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 /kæd/

Cad

Meaning
a man who behaves dishonorably, especially toward women
Example
Everyone at the party avoided him because he was known to be a cad.
C2 noun /ˈkɔːfər/

coffer

Meaning
A strongbox or small chest for holding valuables, often used metaphorically for funds or financial reserves.
Example
The city's coffers were drained after the costly project.
B1 verb /ˈkɒnsəntreɪt/

concentrate

Meaning
to focus all one's attention or mental effort on a particular object or activity
Example
She tried to concentrate on her studies despite the noise.
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.
C2 noun /kɒzˈmɒɡ.rə.fi/

cosmography

Meaning
the science or art of mapping the universe or cosmos
Example
Medieval scholars practiced cosmography to chart the stars and planets.
C1 verb /kəˈpɪtjʊˌleɪt/

capitulate

Meaning
to surrender or give in after resisting
Example
The army had no choice but to capitulate to the enemy.
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.
C1 noun /ˌkɒnvəˈlɛsns/

convalescence

Meaning
the period of time spent recovering from an illness or medical treatment
Example
His convalescence lasted for almost two months after the accident.
B2 noun /kəˈmiː.li.ən/

Chameleon

Meaning
a lizard that can change color to match its surroundings
Example
The chameleon changed its color from green to brown.
C1 adjective /kəˈθɑːr.tɪk/

cathartic

Meaning
Providing psychological relief through the open expression of strong emotions.
Example
Writing about emotions can be a cathartic experience.
C2 noun /ˈkrɪsəndəm/

christendom

Meaning
the worldwide body or community of Christians
Example
The news spread quickly across Christendom.
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.
C2 noun /ˈklaɪmɪŋ fɪʃ/

Climbing-fish

Meaning
a type of fish that can climb trees and survive out of water for short periods
Example
The climbing-fish can move from one pond to another by climbing trees.
B2 verb /ˈsɜːrkjəˌleɪt/

circulate

Meaning
to move continuously or freely through a closed system or area
Example
Air circulated freely in the open hall.
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.
A1 noun /ˈkʌn.tri/

country

Meaning
a nation with its own government and borders
Example
Bangladesh is a beautiful country with rich culture.
C1 noun /ˈkɒnstənsi/

constancy

Meaning
the quality of being faithful and dependable
Example
Her constancy in friendship is admirable.
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.
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 adjective /ˈsɜːr.tən/

Certain

Meaning
confident and sure; without doubt; definitely true
Example
I am certain that we will succeed.
B1 noun /ˈtʃæptər/

chapter

Meaning
A main division of a book or a period in someone's life.
Example
I just finished the first chapter of the novel.
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.
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.
A1 noun /kɑːr/

Car

Meaning
a four-wheeled motor vehicle used for transportation
Example
I drive my car to work every day.
B2 noun /ˈkɑːmpaʊnd/

compound

Meaning
a thing that is composed of two or more separate elements; an enclosed area with buildings
Example
The scientist studied the chemical compound in the lab.
C2 verb /ˈkɒr.ʌ.skeɪt/

coruscate

Meaning
to sparkle or flash brightly
Example
The fireworks coruscated across the night sky.
C2 noun /ˈkʌstərd ˈæpəl/

Custard Apple

Meaning
a tropical fruit with sweet creamy white flesh and black seeds
Example
The custard apple has a sweet and creamy texture.
B2 noun /kraɪˈtɪəriə/

criteria

Meaning
Standards or principles by which something is judged or decided.
Example
The candidates were evaluated based on strict criteria.
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.
C1 noun /ˈkæptər/

captor

Meaning
a person or group who has captured someone or something
Example
The hostage managed to escape from his captors.
B2 verb /kəmˈpoʊz/

compose

Meaning
to create music or writing; to make up; to calm oneself
Example
She composes beautiful songs.
C1 noun /ˈkɒrənər/

coroner

Meaning
an official who investigates sudden, violent, or suspicious deaths
Example
The coroner determined the cause of death was natural.
B2 adjective kənˈsaɪs

concise

Meaning
Brief and clearly expressed without unnecessary details.
Example
A concise speech is more impactful than a long one.
C2 noun /kəˈliːdʒən/

collegian

Meaning
a student of a college
Example
The collegians were preparing for the cultural festival.
B1 noun /ˈkɒnflɪkt/

conflict

Meaning
A serious disagreement or argument, often a prolonged one.
Example
The two countries are trying to resolve the conflict through negotiations.
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.
B2 noun /ˈklɒzɪt/

closet

Meaning
a small room or enclosed space used for storing clothes or other things
Example
She keeps her winter coats in the closet near the door.
C1 noun /ˈkeɪ.sɪŋ/

Casing

Meaning
a cover or shell that protects or encloses something
Example
The mechanic removed the engine casing to examine the internal parts.
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.
B1 verb /kəˈmjuː.nɪ.keɪt/

communicate

Meaning
to share or exchange information, ideas, or feelings
Example
They used gestures to communicate across the noisy room.
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.
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.
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.
C2 verb /kəˈnaɪv/

connive

Meaning
to secretly allow or be involved in a wrongdoing
Example
The manager connived with the supplier to cheat the company.
C1 noun /kɑːɡ/

cog

Meaning
A tooth on the rim of a wheel or gear; metaphorically, a minor but necessary part of a larger system.
Example
He felt like just a small cog in a big machine.
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.
A2 noun ˌkɒmpəˈtɪʃən

competition

Meaning
The activity or condition of competing; rivalry for supremacy.
Example
Competition grew between language groups.
C2 noun /ˈkuː.li/

Cooly

Meaning
a laborer who does physical work for wages
Example
The cooly carried heavy bags at the railway station.
B2 noun /kəˈroʊnə/

corona

Meaning
a crown or crown-like structure; also refers to the outer atmosphere of the sun
Example
The sun's corona was visible during the total solar eclipse.
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.
C1 noun kɒɡˈnɪʃ.ən

cognition

Meaning
The mental action or process of acquiring knowledge and understanding through thought, experience, and the senses.
Example
Cognition plays a key role in learning.
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 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.
C2 adjective /ˈkɑːrpɪŋ/

carping

Meaning
continually complaining or finding fault in a petty way
Example
His carping attitude makes teamwork difficult.
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.
B1 noun /kɔːr/

core

Meaning
the central or most important part of something
Example
Honesty is at the core of their values.
C2 noun /ˌkʌmˈʌpəns/

comeuppance

Meaning
A deserved punishment or fate; just deserts.
Example
The corrupt official finally got his comeuppance in court.
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.
B1 adjective /kəˈmɪtɪd/

committed

Meaning
Dedicated and loyal to a cause, activity, or relationship.
Example
She is a committed teacher who cares deeply for her students.
B2 noun kənˈsen.səs

consensus

Meaning
A general agreement among all members of a group.
Example
Consensus was reached after long deliberation.
B1 adjective /ˈkʌtɪŋ/

cutting

Meaning
sharp or severe, often used to describe remarks or actions
Example
Her cutting remarks made everyone feel uncomfortable.
B1 noun /ˈkɑn.træst/

Contrast

Meaning
the state of being strikingly different from something else; comparison showing differences
Example
The contrast between city life and rural life is quite remarkable.
C1 noun kənˈɡlɒm.ər.ət

conglomerate

Meaning
A large corporation formed by the merging of separate and diverse firms.
Example
The company grew into a multinational conglomerate.
C2 verb /ˈkælsɪfaɪ/

calcify

Meaning
To harden by deposition of calcium salts; to become rigid or inflexible.
Example
Over time, the tissue began to calcify and lose flexibility.
B1 noun ˈtʃæt.dʒiː.piː.tiː

ChatGPT

Meaning
A language-based artificial intelligence model designed for conversational interactions.
Example
ChatGPT helps users generate human-like text efficiently.
C1 adjective /ˌkævəˈlɪər/

cavalier

Meaning
showing a lack of proper concern; dismissive or offhand
Example
He had a cavalier attitude toward safety regulations.
C2 verb /ˌkɒntrəˈvɜːrt/

controvert

Meaning
to dispute or argue against; to contradict
Example
The scientist controversed the previous research findings.
C2 adjective /kɒnˈsæŋɡwɪn/

consanguine

Meaning
Of the same blood or origin; related by birth.
Example
The two families were consanguine through their grandparents.
A2 adverb /ˈker.fə.li/

Carefully

Meaning
with great attention and caution; thoughtfully and attentively
Example
Please read the instructions carefully.
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.
A1 noun /klɒk/

Clock

Meaning
an instrument used to indicate, keep, and co-ordinate time
Example
The clock on the wall shows three o'clock.
C1 adjective /ˈkɔː.stɪk/

caustic

Meaning
able to burn or corrode by chemical action; severely sarcastic
Example
Her caustic remarks hurt his feelings.
B1 noun/verb /koʊd/

code

Meaning
a system of words, letters, or symbols used to represent information or instructions
Example
He wrote a code to solve the problem on the computer.
C2 adjective /ˈkrɛstˌfɔːlən/

crestfallen

Meaning
sad and disappointed
Example
He looked crestfallen after hearing the bad news.
A1 adjective /kloʊzd/

closed

Meaning
not open; shut
Example
The store is closed on Fridays.
C1 noun /ˌkɔːriˈɒɡrəfi/

choreography

Meaning
The art of designing and arranging dances and movements.
Example
The choreography of the ballet was breathtaking.
B2 adjective kənˈven.ʃən.əl

conventional

Meaning
Based on or in accordance with what is generally done or believed; traditional, standard, customary.
Example
Many farmers still use conventional farming methods.
A2 noun /kraɪm/

crime

Meaning
An illegal act punishable by law.
Example
The police are investigating the crime.
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.
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.
C1 noun /koʊlt/

Colt

Meaning
a young male horse, especially one under four years old
Example
The farmer trained the young colt to accept a saddle.
C2 adjective /ˈkɒŋɡruənt/

congruent

Meaning
in agreement or harmony; having the same shape and size in geometry
Example
Their values are congruent with the goals of the organization.
C1 adjective /ˈkjuːmjələtɪv/

cumulative

Meaning
Increasing gradually by addition; growing in quantity, force, or effect.
Example
The cumulative effect of stress can harm your health.
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 /kriːd/

creed

Meaning
A system of religious or spiritual beliefs or a guiding principle.
Example
Freedom of speech is part of his personal creed.
B1 noun /ˈker.ləs.nəs/

Carelessness

Meaning
failure to give sufficient attention to avoiding harm or errors
Example
His carelessness with money led to serious financial problems.
A1 verb /keɪm/

came

Meaning
past tense of 'come'
Example
She came to the party on time.
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.
A1 noun /tʃeər/

Chair

Meaning
a separate seat for one person, typically with a back and four legs
Example
Please sit on the chair.
A2 noun /ˌsɛlɪˈbreɪʃən/

celebration

Meaning
a festive event or activity to honor an occasion
Example
The city held a grand celebration on Independence Day.
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.
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.
B2 noun /kəˈkeɪn/

cocaine

Meaning
a powerful and addictive illegal drug made from coca leaves
Example
He was arrested for possessing cocaine.
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.
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.
C1 noun /krʌks/

crux

Meaning
the most important or decisive point of an issue
Example
The crux of the problem lies in poor communication.
B1 noun /ˌsɪvɪlaɪˈzeɪʃən/

civilization

Meaning
the stage of human social and cultural development and organization considered most advanced
Example
Ancient Egypt is known for its remarkable civilization.
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.
B1 noun /kræb/

Crab

Meaning
a crustacean with a broad carapace, stalked eyes, and five pairs of legs, the first pair of which are modified as pincers
Example
The crab scuttled sideways across the sand.
A2 noun /kɔːrs/

course

Meaning
a direction, path, or a set of educational lessons
Example
She enrolled in a computer science course.
C2 noun /ˈkærəm/

Carom

Meaning
aromatic seeds of a plant used as a spice, especially in Indian cooking
Example
Carom seeds are often used in traditional Indian bread recipes.
A2 noun; verb /tʃæt/

chat

Meaning
an informal conversation; to talk in a friendly, informal way
Example
We had a long chat after dinner.