consonant
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B2 noun /ˈkɒnsənənt/

consonant

Meaning
A speech sound produced by blocking air flow, or a letter representing such a sound.
Example
The word 'cat' has two consonants and one vowel.
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.
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 noun /ˈkɒpɪraɪt/

copyright

Meaning
the legal right of the creator of a work to control its use and distribution
Example
She holds the copyright for the book.
C1 phrase ˌkæt.əˈɡɒr.ɪ.kəl.i rɪˈfjuː.tɪd

categorically refuted

Meaning
Completely and absolutely denied or disproved.
Example
The claims were categorically refuted by officials.
C2 verb /ˈkæstɪˌɡeɪt/

castigate

Meaning
To criticize someone severely or to punish harshly.
Example
The teacher castigated the students for their poor behavior.
B2 adjective /ˈsɪvɪk/

civic

Meaning
relating to a city, town, or the duties of its citizens
Example
The mayor encouraged people to take part in civic activities.
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.
B1 noun /ˈkæmpəs/

campus

Meaning
The grounds and buildings of a university, college, or school.
Example
The university campus is filled with students during the fall semester.
B2 verb /kəmˈpɛl/

compel

Meaning
To force or drive someone to do something.
Example
The law compels citizens to pay taxes.
B1 noun ˈkraɪsɪs

crisis

Meaning
A time of intense difficulty, trouble, or danger.
Example
The financial crisis affected global markets.
C2 noun /ˈkælvəri/

calvary

Meaning
A place or experience of intense suffering, originally the site of Jesus’s crucifixion.
Example
For many refugees, the journey across the desert was a calvary.
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.
C2 noun /ˈkærɪt/

caret

Meaning
A proofreading symbol (^) used to indicate where something should be inserted.
Example
The editor placed a caret to show where the missing word should go.
B2 noun /ˈkɒmpoʊst/

compost

Meaning
decayed organic matter used as fertilizer
Example
The gardener added compost to enrich the soil.
B1 noun /kriˈeɪ.ʃənz/

creations

Meaning
Things that have been created, especially works of art or imaginative works.
Example
His creations astonished the world.
A2 adjective /ˈkɒmɪk/

comic

Meaning
causing or meant to cause laughter
Example
The movie had several comic scenes.
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.
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.
C1 noun /kəmˈplɪsəti/

complicity

Meaning
the state of being involved with others in an illegal activity or wrongdoing
Example
The court revealed his complicity in the fraud scheme.
A2 adjective /ˈsɛntrəl/

central

Meaning
Situated in the middle; of the greatest importance.
Example
Water is central to human survival.
C2 noun /ˈklævɪkəl/

clavicle

Meaning
the collarbone, a long bone that serves as a strut between the shoulder blade and the sternum
Example
He fractured his clavicle in the accident.
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.
C1 noun kənˈvɜː.dʒəns

convergence

Meaning
The process of coming together from different directions to meet at a common point; unification or integration.
Example
The convergence of technologies is revolutionizing industries.
C1 noun /ˈkaʊntərˌpɔɪnt/

counterpoint

Meaning
an argument, idea, or theme contrasting with another; also a musical term for independent melody
Example
Her calm attitude was a counterpoint to his anger.
A2 noun /ˈsen.tər/

center

Meaning
A place or building designated for a particular activity or service.
Example
The first robotic surgery center was established in Rangpur.
C1 verb /ˈkrɒs.briːd/

crossbreed

Meaning
to produce an animal or plant by mating two different breeds, varieties, or species
Example
Farmers crossbreed cows to improve milk production.
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.
C1 noun /ˈklaɪəntɛl/

clientele

Meaning
The clients or customers of a professional person or business.
Example
The salon's clientele includes many high-profile individuals.
C2 noun /ˈkaɪrəˌmænsi/

chiromancy

Meaning
The practice of predicting the future by interpreting the lines on the palms of hands; palmistry.
Example
The old woman practiced chiromancy and told fortunes for travelers.
B2 adjective /ˈkɜːrtiəs/

courteous

Meaning
polite, respectful, or considerate in manner
Example
The staff at the hotel were very courteous to all guests.
A1 verb /kɔːl/

call

Meaning
to say something loudly; to telephone someone; to name
Example
Please call me when you arrive home.
C2 adjective /krəˈmætɪk/

chromatic

Meaning
Relating to colors or, in music, notes outside the standard scale.
Example
The artist used a chromatic palette to create vibrant contrasts.
A2 noun /ˈklɑːsmeɪt/

classmate

Meaning
a person who is in the same class or course of study as another
Example
I met one of my old classmates at the university event.
B2 noun /ˈkʊk.uː/

Cuckoo

Meaning
a bird known for its distinctive call and for laying eggs in other birds' nests
Example
We heard the cuckoo calling from the forest early in the morning.
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.
C2 noun /kwɑːˈfjʊr/

coiffure

Meaning
A person's hairstyle, typically an elaborate one.
Example
Her elegant coiffure impressed everyone at the party.
A2 noun /ˈkrɒk.ə.daɪl/

Crocodile

Meaning
a large reptile with a long mouth and sharp teeth that lives in rivers and lakes in hot countries
Example
The crocodile slowly moved through the murky water.
C1 noun /kəˈnʌn.drəm/

conundrum

Meaning
A complex problem or puzzle without an easy solution
Example
The ethical conundrum puzzled the researchers.
A2 adjective /kəˈrɛkt/

correct

Meaning
free from error; accurate
Example
The answer she gave was correct.
B2 noun /kɒt/

Cot

Meaning
a small bed, especially a portable one or one for a baby
Example
The baby sleeps peacefully in her cot.
B1 noun /ˈkɛmɪstri/

chemistry

Meaning
the branch of science that studies substances and their interactions; also the emotional connection between people
Example
They have great chemistry and work well together.
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.
C2 noun /ˈkoʊ.tə.ri/

coterie

Meaning
a small, exclusive group of people with shared interests
Example
He belonged to a coterie of artists who met every Friday.
B1 verb kleɪmz

claims

Meaning
To take someone's life, to cause death
Example
Workplace pollution claims thousands of lives annually.
B2 adjective /ˈtʃaɪld.laɪk/

Childlike

Meaning
innocent and trusting like a child; having the good qualities of a child; pure and simple
Example
She maintained a childlike wonder about the world around her.
B2 verb /kənˈsiːl/

conceal

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

critically

Meaning
in a way that expresses disapproval or a very serious, important way
Example
He was critically injured in the accident.
B2 noun /kənˈvɜːrtər/

converter

Meaning
a device or person that changes something from one form, system, or use to another; a tool that converts data, energy, or materials
Example
The engineer used a converter to change AC power into DC power.
B2 verb /ˈkeɪtər/

cater

Meaning
To provide food, drinks, or services, usually for an event or group.
Example
The company catered the wedding reception.
B2 noun /ˈkrɪstəl/

crystal

Meaning
a clear, transparent mineral or glass that forms a solid structure with regular patterns
Example
She wore a necklace made of sparkling crystal.
C1 adjective /kənˈsɜːrtɪd/

concerted

Meaning
done with great effort, planned and performed together by multiple people
Example
The workers made a concerted effort to improve conditions.
B2 noun /kənˈsʌmp.ʃən/

Consumption

Meaning
The using up of a resource or the amount of a product consumed by consumers.
Example
High energy consumption leads to increased electricity bills.
C1 noun /ˈsɪvɪks/

civics

Meaning
the study of the rights and duties of citizens and how government works
Example
Civics helps students understand their responsibilities as citizens.
A2 noun /koʊt/

Coat

Meaning
an outer garment worn over other clothes for warmth or protection
Example
He put on his winter coat before going outside.
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 adverb /kənˈtɪnjuəli/

Continually

Meaning
without stopping; repeatedly
Example
She continually checked her phone for messages.
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 noun /ˈkʌlprɪt/

culprit

Meaning
a person who is responsible for a crime or misdeed
Example
The police caught the culprit behind the robbery.
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.
B2 verb /ˈkɑːmpənseɪt/

compensate

Meaning
to give something to make up for loss or damage; to counterbalance
Example
The company will compensate employees for overtime work.
B2 noun kəˌlæbəˈreɪʃən

collaboration

Meaning
The action of working with someone to produce or create something
Example
International collaboration is necessary to fight pollution.
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.
B2 adjective /ˌkɒst.ɪˈfɪʃ.ənt/

cost-efficient

Meaning
Achieving maximum productivity with minimum wasted effort or expense.
Example
Cost-efficient solutions benefit industries.
C2 adjective /tʃəˈruːbɪk/

cherubic

Meaning
Innocent, sweet, and angelic, like a cherub.
Example
The baby had a cherubic smile that melted everyone’s heart.
C2 verb /ˈkʌzən/

cozen

Meaning
to deceive, cheat, or trick someone
Example
He cozened the old man out of his money.
C1 adjective /ˈkæni/

canny

Meaning
Having good judgment, especially in business or practical matters; shrewd.
Example
She made a canny investment in real estate.
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.
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.
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 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.
A2 adjective /ˈkraʊdɪd/

crowded

Meaning
filled with too many people or things
Example
The bus was so crowded that I could hardly move.
C1 noun /ˌkɒmpɪˈleɪʃən/

compilation

Meaning
a collection of things, especially pieces of writing or music, gathered together
Example
The book is a compilation of his best essays.
B1 noun /ˈkɒtən/

cotton

Meaning
A soft white fibrous substance used to make cloth and thread.
Example
This shirt is made of pure cotton.
C2 noun /ˈkrɪptəɡræm/

cryptogram

Meaning
a text written in code or cipher
Example
The detective solved the cryptogram hidden in the letter.
B2 noun ˈkɔːrəl ˈriːfs

Coral Reefs

Meaning
Underwater structures made from calcium carbonate secreted by corals, forming diverse marine ecosystems.
Example
Saint Martin's Island is known for its coral reefs.
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.
B1 noun /ˈkærɪdʒ/

carriage

Meaning
a vehicle, typically a four-wheeled one, used for transporting goods or people, especially in the past
Example
The royal family traveled in a beautiful carriage during parades.
B2 noun ˈkɔːʃən

caution

Meaning
Care taken to avoid danger or mistakes; a warning or piece of advice.
Example
Researchers issued a caution regarding unsustainable fishing.
C1 verb /kəˈpɪtjʊˌleɪt/

capitulate

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

club

Meaning
an organization of people with a common interest; also a place for social gatherings or entertainment
Example
He joined the local tennis club to meet new people.
C1 adjective /ˌser.ɪˈmoʊ.ni.əl/

Ceremonial

Meaning
relating to or used in ceremonies; formal and ritualistic
Example
The ceremonial dress was worn during the royal wedding.
A1 noun /kloʊðz/

clothes

Meaning
garments worn on the body
Example
She bought new clothes for the party.
B2 adjective /ˈklʌm.zi/

clumsy

Meaning
awkward in movement or lacking skill
Example
He is so clumsy that he drops things all the time.
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 /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.
A2 noun /ˈkændi/

candy

Meaning
a sweet food made with sugar or chocolate, often in small pieces
Example
The children were excited to get candy on Halloween.
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.
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.
B2 adjective /ˈklæsɪfaɪd/

classified

Meaning
arranged into categories; officially secret or restricted
Example
The report contains classified information and cannot be shared publicly.
C2 noun /ˈtʃæt.əl/

chattel

Meaning
a personal possession; historically, movable property including slaves
Example
In the past, slaves were considered the chattel of their owners.
C1 verb /kəˈrəʊd/

corrode

Meaning
to gradually destroy or wear away metal or other materials through chemical action
Example
The iron pipes corroded over time due to exposure to water.
B1 noun /sərˈtɪfɪkət/

certificate

Meaning
a document serving as proof of achievement or qualification
Example
She received a certificate for completing the course.
C2 noun /ˈkæbəˌlɪzəm/

cabalism

Meaning
The doctrines, practices, or secretive dealings of a cabal.
Example
The historian wrote extensively about cabalism in the royal court.
B1 verb, noun /klɪp/

clip

Meaning
to cut or trim something; a short extract from a film, broadcast, or recording
Example
She clipped the coupon from the newspaper.
C2 noun /ˈkɔː.seər/

corsair

Meaning
a pirate, especially one operating along the Mediterranean coasts
Example
The corsair plundered ships along the coast.
C1 noun/verb kənˈdʒɛk.tʃər

conjecture

Meaning
An opinion or conclusion formed on the basis of incomplete information; to form an opinion or supposition about something.
Example
The scientist's conjecture was later proven true.
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, adjective /kloʊz/ (verb), /kloʊs/ (adjective)

close

Meaning
To shut something (verb); near in space or relationship (adjective).
Example
Please close the door when you leave.
C2 verb /ˌsɜːrkəmˈnævɪɡeɪt/

circumnavigate

Meaning
to travel all the way around something, especially the earth
Example
Magellan was the first to circumnavigate the globe.
B1 noun /ˈsɪtɪzənʃɪp/

citizenship

Meaning
the status of being a recognized member of a state or country, with rights and duties
Example
He applied for American citizenship after living there for ten years.
A2 noun /kæp/

Cap

Meaning
a head covering with a visor; a protective covering
Example
He wore a baseball cap to protect himself from the sun.
B2 adjective /kəʊˈhɪə.rənt/

coherent

Meaning
Logical and consistent; forming a unified whole; clear and easy to understand.
Example
His speech was clear and coherent.
C1 adjective /ˈkɒn.ɪ.fər.əs/

coniferous

Meaning
Relating to cone-bearing trees that usually have needle-like leaves and remain green year-round.
Example
Pine trees are coniferous and grow in colder climates.
A2 noun /ˈkɜːr.tən/

Curtain

Meaning
a piece of material suspended at the top to form a covering or screen, typically movable sideways
Example
She drew the curtains to block out the bright sunlight.
C2 noun/adjective /ˈsaɪklɔɪd/

cycloid

Meaning
a curve traced by a point on the rim of a circle as it rolls along a straight line
Example
The cycloid is often studied in mathematics and physics.
C2 noun /kənˈtjuː.ʒən/

contusion

Meaning
a bruise or injury without breaking the skin
Example
The boxer had several contusions after the match.
C2 noun /ˈkʌvi/

covey

Meaning
a small group of birds, especially partridges or quails
Example
A covey of quails flew across the field.
A2 noun /kraɪm/

crime

Meaning
An illegal act punishable by law.
Example
The police are investigating the crime.
A2 verb /ˈkʌv.ərd/

covered

Meaning
Protected by being placed over or wrapped; hidden from view.
Example
The forest is covered in greenery.
C1 noun /ˈkɒnsəl/

consul

Meaning
an official appointed by a government to live in a foreign city and protect its citizens and interests there
Example
The consul assisted travelers who lost their passports.
C1 verb /kɑːrp/

carp

Meaning
to complain or find fault continually, often about trivial matters
Example
She tends to carp about the smallest inconveniences.
C2 noun /kəˈnaɪ.vəns/

connivance

Meaning
the act of secretly allowing or being involved in wrongdoing
Example
The theft happened with the connivance of the security guard.
B2 adjective /ˈkræŋki/

cranky

Meaning
bad-tempered, easily annoyed, or irritable
Example
The child gets cranky when he is hungry.
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.
B1 noun /ˈsiːlɪŋ/

ceiling

Meaning
the upper interior surface of a room
Example
The ceiling of the hall was painted beautifully.
C2 adjective /koʊˈtɜːr.mɪ.nəs/

coterminous

Meaning
having the same boundaries or extent in space, time, or meaning
Example
The two jurisdictions are coterminous, sharing the same borders.
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.
C1 adjective /ˌkævəˈlɪər/

cavalier

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