complexity
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B2 noun /kəmˈplɛksɪti/

complexity

Meaning
The state of being complex; intricacy.
Example
The complexity of the problem required a team of experts.
B2 verb, noun /ˈkɒntɛst/

contest

Meaning
verb: to compete or challenge; noun: a competition or dispute
Example
She decided to contest the election against the incumbent.
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.
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.
B1 adjective, noun /ˈkɔːrpərət/

corporate

Meaning
relating to a corporation or large company; united as a single body
Example
Corporate social responsibility is important for modern businesses.
B2 noun /ˌklærɪfɪˈkeɪʃən/

clarification

Meaning
The action of making a statement or situation less confused and more clearly comprehensible.
Example
The manager requested clarification on the project details.
A1 verb /klɪr/

clear

Meaning
to remove obstructions; to make clean or transparent
Example
Please clear the table after dinner.
B2 adjective ˌkɒn.stɪˈtjuː.ʃən.əl

constitutional

Meaning
Relating to an established set of principles governing a state; in accordance with a political constitution.
Example
Constitutional reforms ensure fairness in the system.
B1 adjective /kəmˈpetətɪv/

competitive

Meaning
relating to or characterized by competition; having a strong desire to win or be more successful
Example
She has a competitive spirit that drives her to excel.
A2 noun কন্ডিশন

condition

Meaning
A particular state of health or physical fitness; a medical problem.
Example
The condition worsens without proper treatment.
C1 noun ˈkeɪ.dəns

cadence

Meaning
The rhythm and flow of speech with rise and fall in tone.
Example
His speech had a natural cadence that captivated the audience.
B2 noun /ˈklʌstər/

cluster

Meaning
a group of similar things or people positioned close together
Example
The grapes grew in a tight cluster.
B1 noun /ˈtʃɛərmən/

chairman

Meaning
the leader or head of a meeting, committee, or organization
Example
The chairman opened the meeting with a short speech.
B2 noun /ˈkaʊ.ərd/

Coward

Meaning
a person who lacks the courage to do or endure dangerous or unpleasant things
Example
He called himself a coward for not standing up to the bully.
C2 adjective /kənˈtraɪt/

contrite

Meaning
feeling or showing remorse or guilt
Example
She was contrite after realizing her mistake.
A2 verb /tʃɑːrdʒ/

charge

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

clothe

Meaning
to put clothes on; to dress; to provide with clothing
Example
She clothed the baby in warm garments.
B1 noun /ˈkɔːlɪˌflaʊər/

Cauliflower

Meaning
white vegetable with a compact head of undeveloped flower buds
Example
Roasted cauliflower makes a delicious and healthy side dish.
B2 noun /kənˈstɪtʃ.u.ənts/

constituents

Meaning
Components or elements used to create something.
Example
Proteins and vitamins are essential constituents of a healthy diet.
B2 adjective /kənˈsɜːvətɪv/

conservative

Meaning
Favoring traditional views and values; resistant to change.
Example
He has conservative views on family and society.
B1 noun /ˈsɜːr.kəmˌsˌtæn.sɪz/

Circumstances

Meaning
the conditions that affect a situation, action, or event; facts or conditions connected with or relevant to an event
Example
Under normal circumstances, she would have arrived by now.
A2 verb /kənˈteɪn/

contain

Meaning
to have or include within; to restrain or control
Example
This box contains important documents.
B1 noun ˈkɒn.fər.əns

conference

Meaning
A formal meeting of people with a shared interest, typically one that takes place over several days.
Example
The climate conference emphasized renewable energy.
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.
B2 noun /ˈʃeɪndʒ ˈmænɪdʒmənt/

change management

Meaning
The discipline that guides how we prepare, equip and support individuals, teams and organizations in making organizational change.
Example
Change management ensures smooth transitions.
A2 verb /kəmˈpleɪn/

complain

Meaning
to express dissatisfaction or annoyance about something
Example
He often complains about the noise in the neighborhood.
A2 verb kriˈeɪts

creates

Meaning
To bring something into existence or to cause something to happen
Example
Pollution creates environmental and health issues.
C1 adjective, noun /ˈkɑːr.dɪ.nəl/

cardinal

Meaning
As an adjective: of prime importance; as a noun: a high-ranking Catholic clergyman or a type of bird.
Example
Honesty is a cardinal virtue in life.
C2 adjective /kəmˈpleɪzənt/

complaisant

Meaning
willing to please others or to accept what they do or say without protest
Example
He was too complaisant to refuse their demands.
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.
A2 adjective /ˈsɛntrəl/

central

Meaning
Situated in the middle; of the greatest importance.
Example
Water is central to human survival.
B2 adjective kənˈsaɪs

concise

Meaning
Brief and clearly expressed without unnecessary details.
Example
A concise speech is more impactful than a long one.
C1 noun sɪˈmɛntɪd ɡreɪv

cemented grave

Meaning
A grave that is constructed with cement for permanence.
Example
The cemented grave of the martyrs was seen near the river.
C1 noun /ˈkæləs/

callus

Meaning
A thickened and hardened part of the skin or soft tissue, especially in an area subjected to friction.
Example
A callus formed on his palm from using tools every day.
B2 adjective ˈkɒɡnɪtɪv

cognitive

Meaning
Related to mental processes of perception, memory, judgment, and reasoning.
Example
Cognitive functions improve with practice and learning.
B1 adjective /ˈkæʒ.u.əl/

Casual

Meaning
relaxed and unconcerned; happening by chance; informal
Example
He wore casual clothes to the party.
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.
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.
C2 verb /ˈkæn.tər/

canter

Meaning
To ride a horse at a controlled, easy pace between a trot and a gallop.
Example
She cantered her horse across the field with ease.
C1 noun /ˈkɜːrlər/

curler

Meaning
A small roller used for curling hair.
Example
She used a curler to style her hair for the party.
B2 verb /ˈkæt.ɪ.ɡə.raɪzd/

categorized

Meaning
Placed in a particular class or group.
Example
The city was categorized as highly polluted.
C2 adjective /ˈkrɛdʒʊləs/

credulous

Meaning
Having or showing too great a readiness to believe things.
Example
The credulous child believed every story she heard.
C2 noun /ˈkɒl.ə.kwi/

colloquy

Meaning
A formal conversation or dialogue, often on serious or academic topics.
Example
The professors engaged in a deep colloquy about the future of education.
C1 adjective /kəmˈplaɪənt/

compliant

Meaning
Willing to agree with or follow rules, requests, or demands.
Example
She was compliant with all the safety requirements.
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.
B2 noun /ˈkɒn.flɪkt ˌrez.əˈluː.ʃən/

conflict resolution

Meaning
The process of finding peaceful solutions to disputes or disagreements between parties.
Example
Conflict resolution is vital for global peace.
B2 adjective /ˈsel.jə.lər/

Cellular

Meaning
relating to cells; consisting of cells; relating to mobile phone technology
Example
Cellular technology has revolutionized communication.
C1 noun /ˈkæviˌæt/

caveat

Meaning
a warning or condition to be considered before taking action
Example
The proposal was accepted with one caveat.
C2 adjective /kænˈtæŋ.kər.əs/

cantankerous

Meaning
Bad-tempered, argumentative, and uncooperative.
Example
The cantankerous old man complained about everything.
C1 noun /ˈkɒntrəbænd/

contraband

Meaning
goods that are illegal to import, export, or possess
Example
The police seized a shipment of contraband cigarettes.
A1 noun /kloʊðz/

clothes

Meaning
garments worn on the body
Example
She bought new clothes for the party.
B2 verb /koʊp/

cope

Meaning
to deal effectively with something difficult
Example
She had to cope with a lot of pressure at work.
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.
C2 noun /ˈkɒntrətɑː̃/

contretemps

Meaning
an unexpected and unfortunate event or disagreement; a minor dispute
Example
There was a small contretemps between the two colleagues during the meeting.
B1 verb /tʃuː/

chew

Meaning
to bite food into smaller pieces with your teeth before swallowing it
Example
You should chew your food properly to help with digestion.
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.
B2 verb /kənˈsiːl/

conceal

Meaning
to hide something or keep it secret
Example
He tried to conceal his disappointment behind a smile.
B2 noun/adjective /kənˈstɪtʃuənt/

constituent

Meaning
Noun: A member of a constituency or an essential part of something. Adjective: Being a necessary part of a whole.
Example
The senator met with his constituents to discuss local issues.
B2 noun /krɪˈeɪtə/

creator

Meaning
a person who brings something into existence
Example
He is the creator of many successful startups.
C1 noun /ˈkʌn.stə.bəl/

constable

Meaning
a police officer of the lowest rank
Example
The constable directed traffic at the busy intersection.
C2 noun ˌkɒdʒɪˈteɪʃən

cogitation

Meaning
The action of thinking deeply about something; contemplation
Example
After much cogitation, he made the final decision.
C1 adjective /kənˈtɛmptʃuəs/

contemptuous

Meaning
showing or expressing contempt; scornful
Example
She gave him a contemptuous glance.
C2 noun /kəˈpriːs/

caprice

Meaning
a sudden, unpredictable change of mood or behavior
Example
She bought the expensive dress on a caprice.
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 /ˈklaɪ.mət əˌdæp.teɪ.ʃən/

climate adaptation

Meaning
The process of adjusting to current or expected climate change and its effects.
Example
Climate adaptation ensures resilience to change.
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 noun /kənˈsep.ʃən/

Conception

Meaning
the forming of an idea or plan; the fertilization of an ovum by a sperm; the action of conceiving
Example
The conception of this innovative project took several months of brainstorming.
C1 adjective + noun kəˈmendəbəl ɪˈnɪʃətɪvz

commendable initiatives

Meaning
Praiseworthy efforts or actions that deserve admiration and approval.
Example
The commendable initiatives aim to raise awareness.
A2 noun /ˈkɔːrnər/

corner

Meaning
the place where two edges or sides meet
Example
The store is just around the corner.
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 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.
B1 adjective kənˈsɪs.tənt

consistent

Meaning
Acting or done in the same way over time, especially so as to be fair or accurate.
Example
Consistent performance leads to success.
C2 noun /ˈkʌvən/

coven

Meaning
a group or gathering of witches
Example
The witches met secretly in a coven in the forest.
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.
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.
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.
B1 noun /ˈtʃæmpiənʃɪp/

championship

Meaning
a competition to decide who is the best in a particular sport or activity.
Example
The championship will be held next month.
B2 verb /kənˈsiːd/

concede

Meaning
to admit something is true or valid, often reluctantly
Example
She finally conceded that she was wrong.
A1 noun /ˈkʌn.tri/

country

Meaning
a nation with its own government and borders
Example
Bangladesh is a beautiful country with rich culture.
B2 adjective /ˈsɪn.ɪ.kəl/

cynical

Meaning
Believing that people are motivated by self-interest; distrustful of human sincerity or integrity.
Example
She was cynical about the politician's promises.
C2 verb /ˌkaʊntərˈmænd/

countermand

Meaning
to revoke or cancel an order or command
Example
The general countermanded the previous orders immediately.
A2 adjective /ˈkruːəl/

cruel

Meaning
Willfully causing pain or suffering to others, or feeling no concern about it.
Example
It was cruel to make fun of the injured boy.
C1 noun /ˈkærət/

carat

Meaning
a unit of weight for precious stones, equal to 200 milligrams
Example
She received a two-carat diamond ring for her engagement.
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.
B2 noun /kənˈdʌktər/

conductor

Meaning
a person who directs a performance or someone who collects fares on public transport; or a material that conducts electricity
Example
The conductor waved his baton to start the orchestra.
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.
B2 adjective /ˈkræŋki/

cranky

Meaning
bad-tempered, easily annoyed, or irritable
Example
The child gets cranky when he is hungry.
B2 adjective /kənˈvɪnsɪŋ/

Convincing

Meaning
believable; credible; persuasive; able to make someone believe something
Example
His convincing argument won over the entire jury.
B1 noun /ˈkɛmɪkəl/

chemical

Meaning
a substance produced by or used in a chemical process
Example
The factory releases harmful chemicals into the river.
A1 adjective /ˈtʃɒk.lət/

Chocolate

Meaning
a dark brown color like chocolate; the color of cocoa
Example
The chocolate brown sofa looks elegant in the living room.
C1 noun /ˈkroʊniˌɪzəm/

cronyism

Meaning
The practice of favoring friends or associates, especially in political appointments or business deals.
Example
The company was accused of cronyism in hiring practices.
B2 adjective /kənˈtɛmpərɛri/

contemporary

Meaning
belonging to the same time period; modern
Example
She enjoys contemporary art exhibitions.
C1 noun sɜːrˈkeɪdiən ˈrɪðəm

circadian rhythm

Meaning
The body's natural sleep-wake cycle that occurs within 24 hours
Example
Exposure to natural light regulates the circadian rhythm.
C1 noun, verb /kriːs/

crease

Meaning
a line or fold produced on paper, cloth, or other material; to make a fold or wrinkle
Example
She ironed the shirt carefully to remove every crease.
B2 verb /siːs/

cease

Meaning
to bring or come to an end; to stop doing something
Example
The noise ceased as soon as the children went inside.
B1 adverb /ˈkʌrəntli/

currently

Meaning
at the present time; now
Example
He is currently working on a new project.
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.
C1 verb /kəˈleɪt/

collate

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

cottage

Meaning
a small simple house, typically in the countryside
Example
They spent their vacation in a cozy cottage by the lake.
B2 noun /ˈkæp.tɪv/

Captive

Meaning
a person who has been taken prisoner or an animal that has been confined
Example
The captive was held in a small cell for several months.
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.
A2 verb /kræʃ/

crash

Meaning
To collide violently; to suddenly stop working (for machines or computers).
Example
The car crashed into the wall at high speed.
B2 noun /ˈkɒm.ɪt/

Comet

Meaning
a celestial object consisting of ice and dust that develops a tail when approaching the sun
Example
Halley's Comet appears in the sky every 76 years.
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.
B2 noun /ˈkæbɪnət/

Cabinet

Meaning
a piece of furniture with doors and shelves used for storage
Example
The kitchen cabinet is full of dishes and utensils.
C1 noun /ˌkɒrəˈneɪʃən/

coronation

Meaning
the act or ceremony of crowning a sovereign or monarch
Example
The coronation of the new king was attended by thousands of people.
C2 adjective /ˈklæmərəs/

clamorous

Meaning
making a loud and confused noise; expressing strong demands noisily
Example
The clamorous audience demanded an encore from the band.
B2 adjective /ˌkɒm.plɪˈmen.tər.i/

Complimentary

Meaning
expressing praise or admiration; given or supplied free of charge as a courtesy
Example
The hotel offers complimentary breakfast for all guests.
C1 verb /koʊˈhæbɪt/

cohabit

Meaning
To live together, often as partners without being married.
Example
They decided to cohabit before getting married.
B1 adjective /kənˈtroʊld/

controlled

Meaning
managed or regulated carefully; kept within limits
Example
The experiment was conducted in a controlled environment.
C1 noun /kəmˈprɛʃn̩/

compression

Meaning
The act of pressing or squeezing something into a smaller space.
Example
File compression helps reduce storage requirements.
C1 noun /kənˈkʌrəns/

concurrence

Meaning
Agreement or union in action, opinion, or occurrence; simultaneous happening of events.
Example
The project was completed with the concurrence of all departments.
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 /kənˈfɔːrm/

conform

Meaning
To comply with rules, standards, or laws.
Example
Students must conform to the school regulations.
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.
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.
B2 adjective /ˌkɑː.di.əʊˈvæs.kjʊ.lər/

cardiovascular

Meaning
Relating to the heart and blood vessels.
Example
Regular exercise improves cardiovascular health.
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.
A2 noun,verb /kɔːrt/

court

Meaning
a place where legal cases are heard or to seek favor or attention
Example
He courted the judge with respect.
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.