proliferation
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C1 noun /prəˌlɪf.əˈreɪ.ʃən/

proliferation

Meaning
Rapid increase in the number or amount of something; rapid multiplication or growth.
Example
The proliferation of malware is a growing concern.
B1 adjective /dɪˈmændɪŋ/

demanding

Meaning
requiring much effort, skill, or attention; difficult to satisfy
Example
The job is very demanding and requires long hours of work.
B2 noun /kɒk/

Cock

Meaning
an adult male chicken
Example
The cock crowed loudly at dawn to wake everyone up.
C1 noun /ˈpɪntʃərz/

pinchers

Meaning
a tool used for gripping or squeezing objects
Example
Use the pinchers to remove the hot coal safely.
C2 noun /ˌvælɪˌtjuːdɪˈnɛəriən/

valetudinarian

Meaning
A person who is unduly anxious about their health or constantly concerned with minor ailments.
Example
He was regarded as a valetudinarian, always worrying about his health.
A2 noun /ˈmɛnjuː/

menu

Meaning
A list of food and drinks available at a restaurant or offered at a meal.
Example
The restaurant updated its menu with new dishes.
C1 adjective /ˈkælkjʊleɪtɪŋ/

calculating

Meaning
acting in a scheming and ruthlessly determined way
Example
He had a cold and calculating approach to business.
C1 noun /liːs/

Lease

Meaning
a contract by which one party conveys land, property, services, etc. to another for a specified time, usually in return for a periodic payment
Example
They signed a two-year lease for the apartment.
B2 verb /pəˈluːt/

pollute

Meaning
to make air, water, or land dirty and harmful to people, animals, and plants
Example
Factories pollute the environment with toxic chemicals.
B2 noun /swɪŋ/

Swing

Meaning
move or cause to move back and forth or from side to side while suspended or on an axis
Example
The children love to swing in the park.
C2 noun /ɪkˈstɛnsər/

extensor

Meaning
a muscle that serves to extend or straighten a limb or part of the body.
Example
The extensor muscles in the arm help straighten the elbow.
C2 verb /ɪkˈskruːʃieɪt/

excruciate

Meaning
to cause intense pain or suffering
Example
The injury excruciated him with unbearable pain.
B1 adjective /ˈtʃælɪndʒɪŋ/

challenging

Meaning
difficult in a way that tests one's abilities
Example
The mountain climb was challenging but rewarding.
B2 verb /blʌf/

bluff

Meaning
to deceive someone by pretending to have strength, knowledge, or resources that one does not actually possess
Example
He tried to bluff his way into the exclusive club.
C1 adjective /ˈvɪʒ.ən.er.i/

Visionary

Meaning
having original ideas about what the future will bring; innovative; imaginative
Example
Steve Jobs was a visionary leader who revolutionized technology.
B2 noun /ˈaʊt.saɪ.dər/

Out-sider

Meaning
a person who does not belong to a particular group; someone not accepted by a group
Example
As an outsider, he found it difficult to understand their traditions.
C1 noun /dɪˌpriː.ʃiˈeɪ.ʃən/

depreciation

Meaning
A reduction in the value of an asset with the passage of time, due to wear and tear.
Example
The car's depreciation rate is high after five years.
B2 adjective haɪˈdʒiː.nɪk

hygienic

Meaning
Conducive to maintaining health and preventing disease, especially by being clean.
Example
Maintaining hygienic conditions in hospitals is crucial.
C1 noun /voʊɡ/

vogue

Meaning
the prevailing fashion, style, or trend at a particular time
Example
Minimalist design is currently in vogue.
B2 adjective /ɔːˈθen.tɪk/

Authentic

Meaning
genuine; real; not fake or copied
Example
The museum displays only authentic artifacts from ancient civilizations.
C1 noun /ˈdɒɡmə/

dogma

Meaning
A principle or set of principles laid down by an authority as incontrovertibly true.
Example
The religious leader strictly adhered to traditional dogma.
B1 noun /ˈiː.tɪŋ ˈhæb.ɪts/

eating habits

Meaning
A person's usual pattern and preferences in food consumption.
Example
Developing good eating habits leads to better health.
B2 noun /ˈpaɪ.θən/

Python

Meaning
a large non-venomous snake that kills prey by constriction
Example
The python wrapped around its prey tightly.
B2 adverb /əˈbrʌptli/

Abruptly

Meaning
suddenly and unexpectedly; without warning
Example
The meeting ended abruptly when the power went out.
C1 noun /ˈhed.weɪ/

Headway

Meaning
forward movement or progress, especially when this is slow or difficult
Example
Despite the challenges, the research team made significant headway in developing the new vaccine.
B1 noun /ˈspɪn.ɪtʃ/

Spinach

Meaning
a vegetable with large dark green leaves that are eaten cooked or uncooked
Example
Fresh spinach is very nutritious.
B2 noun ˈikoʊ ˈfrɛndli tɛkˈnɑləʤiz

eco-friendly technologies

Meaning
Technologies that are designed to minimize environmental impact and promote sustainability.
Example
Eco-friendly technologies can mitigate pollution.
B2 noun ˌreɪ.di.oʊ.ækˈtɪv.ə.ti

radioactivity

Meaning
The emission of ionizing radiation or particles caused by the spontaneous disintegration of atomic nuclei.
Example
Radioactivity is used in medical treatments like cancer therapy.
C2 adjective /ˌɛkjʊˈmɛnɪkəl/

ecumenical

Meaning
Promoting unity among different Christian churches or religions.
Example
The leaders gathered for an ecumenical conference to encourage dialogue.
B2 adjective /ˌfɪl.əˈsɒf.ɪ.kəl/

philosophical

Meaning
relating to the study of the fundamental nature of knowledge, reality, and existence
Example
She maintained a calm and philosophical attitude during the crisis.
C2 verb /ˈkɔː.tə.raɪz/

cauterize

Meaning
to burn tissue to stop bleeding or prevent infection
Example
The doctor cauterized the wound to stop the bleeding.
C2 noun /ˈkɒksweɪn/

coxswain

Meaning
the person in charge of navigating and steering a boat, especially a racing or small boat
Example
The coxswain shouted instructions to the rowing team.
C1 adjective /ˈhæb.ɪ.tə.bəl/

Habitable

Meaning
suitable or good enough to live in
Example
The planet Mars may become habitable in the future.
B2 adjective /dɪˈstɪŋkt/

Distinct

Meaning
separate and different; clear and recognizable; unique
Example
Each painting has its own distinct style and character.
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 ˈɔː.bɪt

orbit

Meaning
The curved path of a celestial object around a star, planet, or moon.
Example
The satellite maintains its orbit around Earth.
C1 noun /vɛnˈdɛtə/

vendetta

Meaning
a prolonged bitter quarrel or campaign of revenge
Example
The two families were caught in a bitter vendetta for generations.
A1 verb /driːm/

dream

Meaning
to have thoughts and images in your mind while sleeping; to hope for
Example
I often dream about flying in the sky.
C2 noun /ˈdʒæk.dɔː/

Jack-daw

Meaning
a small gray and black bird of the crow family, known for its intelligence
Example
The jackdaw collected shiny objects for its nest.
C1 noun /ˈwɒndərlʌst/

wanderlust

Meaning
A strong desire to travel and explore the world.
Example
Her wanderlust took her to every corner of the globe.
C1 verb /ˈrʌsl/

rustle

Meaning
To make a soft, light sound like leaves or paper moving.
Example
The leaves rustled gently in the evening breeze.
C2 verb /əbˈhɔːr/

abhor

Meaning
to regard with disgust and hatred
Example
She abhors cruelty to animals.
A2 noun /mjuˈziːəm/

museum

Meaning
a building in which objects of historical, scientific, artistic, or cultural interest are stored and exhibited
Example
We visited the art museum to see the new exhibition.
C1 noun /ˈpær.ə.saɪt/

Parasite

Meaning
an organism that lives on or in another organism and benefits at its expense; a person who depends on others
Example
The dog was treated for intestinal parasites.
B1 adjective /ˈel.dər.li/

Elderly

Meaning
aged; advanced in years; old
Example
The elderly man walked slowly with his cane.
C1 noun /ˈstæl.i.ən/

stallion

Meaning
An adult male horse that is not castrated, often used for breeding.
Example
The farm owns a powerful stallion for breeding purposes.
C2 noun /dʒuːt liːf/

Jute leaf

Meaning
the edible leaves of the jute plant, commonly eaten as a leafy green vegetable
Example
Jute leaf is rich in vitamins and minerals and is often cooked with lentils in Bengali cuisine.
B2 verb /draʊn/

drown

Meaning
to die or cause to die by being submerged in and inhaling water
Example
He nearly drowned while swimming in the river.
C1 noun /ˈpɔɪ.nən.si/

poignancy

Meaning
the quality of evoking a keen sense of sadness or regret; emotionally touching
Example
The poignancy of the farewell brought tears to everyone's eyes.
C1 adjective /ˈædʒɪteɪtɪd/

Agitated

Meaning
disturbed; anxious; restless; excited in a negative way
Example
He became agitated when he heard the bad news.
C2 noun /mælˈfiːzəns/

malfeasance

Meaning
Wrongdoing or misconduct, especially by a public official.
Example
The mayor was accused of malfeasance in office.
C1 adjective /ˈlɪvɪd/

livid

Meaning
Extremely angry; furious.
Example
She was livid when she found out about the betrayal.
B2 verb /ˈstrʌɡlɪŋ/

struggling

Meaning
Making forceful or violent efforts to get free of restraint or constriction; having difficulty achieving something.
Example
Many regions are struggling with economic recovery.
C1 noun /ˈtaɪ.ɡrəs/

Tigress

Meaning
an adult female tiger
Example
The powerful tigress hunted silently through the jungle.
B2 noun /droʊn/

Drone

Meaning
a male bee that does not work and whose only function is to mate with the queen
Example
The drone bees do not collect honey like worker bees.
B1 noun /ˈmelədi/

Melody

Meaning
A sequence of single notes that is musically satisfying; a tune
Example
She hummed a beautiful melody while cooking dinner.
C2 adjective /ˈsæpɪd/

sapid

Meaning
Having a pleasant taste; flavorful.
Example
The chef prepared a sapid dish that delighted everyone at the table.
B1 verb /kleɪm/

claim

Meaning
to assert ownership; to state as fact
Example
He claims to be the rightful owner.
B2 adjective prɪˈlɪm.ɪ.nər.i

preliminary

Meaning
Denoting an action or event preceding or done in preparation for something fuller or more important.
Example
Preliminary steps are crucial before the main project.
B1 noun /prɪnt/

Print

Meaning
words, letters, or pictures produced on paper using a machine; a mark made by pressing something onto a surface
Example
The book is available in both digital and print versions.
B1 verb /ˈdoʊneɪt/

donate

Meaning
to give money, goods, or time to help others; to contribute
Example
She donates blood every three months.
C1 noun /ˈpʌndɪt/

pundit

Meaning
An expert in a particular subject or field who is frequently called upon to give opinions to the public.
Example
Political pundits debated the election results on television.
B2 adjective /ˈnjuː.mər.əs/

Numerous

Meaning
existing in large numbers; many; abundant
Example
There are numerous benefits to exercising regularly.
C2 verb /əˈbeɪs/

abase

Meaning
to belittle or degrade someone
Example
He refused to abase himself before the king.
C2 adjective /ˈdɒdərɪŋ/

doddering

Meaning
Weak, shaky, or unsteady, especially due to old age.
Example
The doddering professor struggled to climb the stairs.
A1 verb /kʊk/

cook

Meaning
to prepare food by heating; to make food ready to eat
Example
My mother loves to cook traditional dishes.
B2 noun ˈnætʃərəl ˈhæbɪtæt

Natural Habitat

Meaning
The natural environment where organisms live and fulfill their life needs.
Example
Protecting the natural habitat is crucial for butterflies.
B2 noun /ˈæd.və.kət/

Advocate

Meaning
a lawyer who represents clients in court; a person who supports or argues for a cause or policy
Example
The advocate presented strong evidence to defend his client in court.
C2 noun /ˈwɪtlɪŋ/

witling

Meaning
a person who has little wit or pretends to be witty
Example
He acted like a witling among scholars.
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 /kəˈmændər ɪn tʃiːf/

Commander-in-chief

Meaning
the supreme leader of a nation's armed forces
Example
The president serves as the commander-in-chief of the military.
B2 verb /mɔːrn/

mourn

Meaning
To feel or express deep sadness or grief, especially because of someone's death.
Example
They gathered to mourn the loss of their friend.
C2 noun /ɪnˈɡrætɪˌtjuːd/

ingratitude

Meaning
Lack of gratitude; failure to show thanks or appreciation.
Example
His ingratitude hurt her feelings after all she had done for him.
B2 noun ˈmɒn.ɪ.tər.ɪŋ

monitoring

Meaning
The action of observing and checking the progress or quality of something over a period of time.
Example
Monitoring ensures compliance with standards.
C2 noun /fluː/

flue

Meaning
A pipe or channel for smoke and waste gases produced by a fire, gas heater, or power station.
Example
The chimney flue needs to be cleaned regularly.
A1 interjection;noun /ɡʊdˈbaɪ/

goodbye

Meaning
a polite expression used when leaving or ending a conversation; the act of parting
Example
She waved and said goodbye before leaving the station.
B2 adjective /ˌpoʊstˈwɔːr/

post-war

Meaning
relating to the period after a war has ended
Example
The country experienced rapid economic growth in the post-war years.
C2 noun /daɪˈvʌldʒəns/

divulgence

Meaning
the act of revealing or disclosing something secret or private
Example
The divulgence of company secrets caused a major scandal.
C1 noun /ˈmæntl̩/

mantle

Meaning
A cloak or covering; also the layer of the earth between the crust and the core.
Example
The leader assumed the mantle of responsibility.
C2 noun /ˈɡɑːrɡɔɪl/

gargoyle

Meaning
A carved stone figure, often of a grotesque creature, on a building, typically used as a spout to carry water away.
Example
The ancient cathedral had gargoyles on every corner.
C1 adjective /səˈdɪs.tɪk/

sadistic

Meaning
Deriving pleasure from inflicting pain or suffering on others.
Example
The villain had a sadistic smile while hurting his enemies.
B1 adjective /ʌnˈnoʊn/

Unknown

Meaning
not known or identified; unfamiliar
Example
The author of this letter remains unknown.
C2 noun /ˈlæki/

lackey

Meaning
a person who is overly willing to serve or obey someone else
Example
He treated his assistant like a mere lackey.
C1 adjective /dɪˈvɔɪd/

devoid

Meaning
Completely lacking or without something.
Example
His speech was devoid of any real emotion.
C2 noun /ˈsɒfɪstri/

sophistry

Meaning
the use of clever but false arguments, often to deceive
Example
The politician's speech was full of sophistry.
A1 verb /sel/

sell

Meaning
to give something to someone in exchange for money
Example
They sell fresh fruits at the market.
C1 noun ˌprɒf.ɪ.təˈbɪl.ɪ.ti

profitability

Meaning
The degree to which a business or activity yields profit or financial gain.
Example
Increasing sales and reducing costs boosted profitability.
C1 verb /kəmˈpjuːt/

compute

Meaning
To calculate or determine by using a computer or mathematical methods.
Example
The software can compute the total cost in seconds.
C1 noun ˈfæl.ə.si

fallacy

Meaning
False belief, misconception, false reasoning.
Example
The idea that success comes easy is a fallacy.
C2 noun /ˌkɑːrt ˈblɑːnʃ/

carte blanche

Meaning
complete freedom to act as one wishes
Example
The manager gave her team carte blanche to design the project.
C1 adjective /ʌnˈkæni/

uncanny

Meaning
Strange or mysterious, especially in an unsettling way.
Example
She has an uncanny ability to predict the future.
C2 noun /ˌhaɪpəkəˈnektɪvɪti/

hyperconnectivity

Meaning
The state of being extensively connected to other people, places, information, etc., through digital technology.
Example
Hyperconnectivity has changed the dynamics of human interaction.
B2 verb /ˈfæsən/

fasten

Meaning
To attach or secure something firmly in place
Example
Please fasten your seatbelt before the plane takes off.
B2 adjective /prɪˈventɪv/

Preventive

Meaning
designed to prevent something from happening; protective against disease
Example
Regular exercise is a preventive measure against heart disease.
A2 verb /teɪk ɒf/

take off

Meaning
to remove something; to leave the ground and begin flying (airplane); to suddenly become successful or popular
Example
The airplane will take off in ten minutes.
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.
A1 adverb /ˈmeɪbi/

maybe

Meaning
used to express possibility or uncertainty
Example
Maybe we will go to the park tomorrow.
C2 adjective /ˌɪnˌɑːpərˈtuːn/

inopportune

Meaning
Happening at a bad or inconvenient time.
Example
His call came at the most inopportune moment.
C1 noun /ˈkærət/

karat

Meaning
A unit for measuring the purity of gold, with 24 karats being pure gold.
Example
The ring was made of 18-karat gold.
C1 adjective /ˈsæljʊˌtɛri/

salutary

Meaning
Producing good effects; beneficial, especially after something unpleasant.
Example
The accident was a salutary reminder to drive carefully.
C2 adjective /dɪˈkrɛpɪt/

decrepit

Meaning
worn out or weakened by age or neglect
Example
The decrepit old house was on the verge of collapse.
C2 noun /səˈvɑːnt/

savant

Meaning
a learned person, especially a distinguished scientist or scholar; sometimes used in the phrase ‘savant syndrome’ for someone with exceptional abilities alongside developmental differences
Example
The conference keynote was delivered by a linguistic savant who studies endangered languages.
C2 verb /ˌoʊvərˈliːp/

overleap

Meaning
To jump over something; to omit or disregard something.
Example
He managed to overleap the fence easily.
C2 verb /ˈwɛltər/

welter

Meaning
to roll or toss about in a confused or disorderly way; to be in turmoil
Example
The city weltered in chaos after the sudden blackout.
B1 noun /ˈtaɪ.təl/

Title

Meaning
the name of a book, movie, or other work; a word used before someone's name to show rank or status
Example
The title of the book is very interesting.
B2 noun /ˈhɑːr.mə.ni/

harmony

Meaning
A pleasing combination of different elements or a state of peaceful coexistence.
Example
A society thrives when there is harmony among its people.
A2 noun /ədˈvaɪs/

advice

Meaning
Guidance or recommendations offered with regard to prudent future action.
Example
Experts provide advice for better air quality.
A1 adjective /njuː/

new

Meaning
recently made, discovered, or introduced; not existing before
Example
He bought a new car yesterday.
B1 adjective /ˌdɪs.əˈpɔɪn.tɪd/

Disappointed

Meaning
sad because something has not happened or is not as good as expected
Example
She was disappointed with her exam results.
C1 adjective /dɪˈbeɪst/

debased

Meaning
having lost quality, value, or moral character
Example
The debased currency lost the trust of the people.
C1 noun /pɪˈtaɪə/

Pitaya / Dragon fruit

Meaning
a tropical fruit with bright pink or red skin and white flesh speckled with black seeds
Example
The pitaya has a mild, sweet flavor and a unique appearance.
C1 adjective /ɪˈmeʒərəbəl/

Immeasurable

Meaning
too large or extensive to measure; boundless
Example
The immeasurable love of a mother knows no bounds.
C2 noun /ˈfæn.feər/

fanfare

Meaning
a short ceremonial tune or display of publicity to attract attention
Example
The new product was launched with much fanfare.
B2 verb /ˌɪntərˈfɪər/

interfere

Meaning
to become involved in something that is not your concern; to hinder or obstruct
Example
Parents should not interfere in their children’s personal choices.
A2 noun /ɡreɪp/

grape

Meaning
a small, round fruit that grows in clusters on vines and is used to make wine or eaten as food
Example
She picked a bunch of grapes from the vine.
B2 verb /ɪkˈsploʊd/

explode

Meaning
to burst or shatter violently and noisily as a result of rapid combustion or pressure
Example
The bomb exploded in the middle of the street.
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.
B1 noun /ˈmæɡnət/

magnet

Meaning
An object that produces a magnetic field and attracts metals like iron.
Example
The magnet held the paper to the fridge door.
C1 noun /ˈsɛdətɪv/

sedative

Meaning
A substance that calms the nerves or induces sleep.
Example
The doctor prescribed a sedative to help the patient sleep.
A2 noun /tjuːb/

tube

Meaning
a hollow cylinder used to convey something, typically fluid
Example
He used a tube to measure the liquid.
C2 noun /ˈɪnfəmi/

infamy

Meaning
the state of being well known for some bad quality or deed
Example
His name will live in infamy for the crimes he committed.