radiation
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B2 noun ˌreɪdɪˈeɪʃən

radiation

Meaning
The emission of energy as electromagnetic waves or as moving subatomic particles.
Example
Radiation from the sun can be harmful without protection.
B2 verb /ˌʌndərˈskɔːr/

underscore

Meaning
to emphasize or highlight something
Example
The incident underscored the need for better safety measures.
C2 noun /əˈmɛrɪkəˌnɪzəm/

americanism

Meaning
A word, phrase, or practice characteristic of American English or culture.
Example
The term 'sidewalk' is an Americanism, while 'pavement' is used in British English.
B1 noun ˌkɒn.səˈveɪ.ʃən

conservation

Meaning
The protection of plants and animals, natural areas, and interesting and important structures and buildings, especially from the damaging effects of human activity.
Example
Conservation of forests is crucial for climate stability.
B2 noun /ɪnˈfek.ʃən/

Infection

Meaning
the process of infecting or the state of being infected; a disease caused by germs
Example
The doctor prescribed antibiotics to treat the bacterial infection in her throat.
C2 verb /ˈkɒd.l̩/

coddle

Meaning
to treat someone with excessive care or kindness, often in a way that is overprotective
Example
Parents should support their children without coddling them.
B2 noun /ˈkreɪvɪŋ/

craving

Meaning
a strong desire for something
Example
She has a craving for chocolate every evening.
C1 noun /bɑːrb/

barb

Meaning
a sharp projection such as on a fishhook; a cutting remark
Example
The fishhook has a small barb to keep the fish from escaping.
B2 verb /ˈɪr.ɪ.teɪt/

irritate

Meaning
To make someone annoyed or angry; to cause discomfort or inflammation.
Example
Rubbing your eyes can irritate them.
C2 noun /ˈɒn.rʌʃ/

onrush

Meaning
A sudden powerful forward or downward rush or flow.
Example
The onrush of water swept away the bridge.
C2 adjective /ˈruːmi/

rheumy

Meaning
Watery, especially referring to the eyes.
Example
His rheumy eyes showed signs of age and fatigue.
B2 noun ˈaʊt.pʊt

output

Meaning
The amount of something produced by a person, machine, or industry.
Example
Climate change reduces agricultural output.
C2 noun /ˈsaɪ.nəˌʃʊr/

cynosure

Meaning
A person or thing that is the center of attention or admiration.
Example
She was the cynosure of all eyes at the party.
B2 noun prəˈdʒɛk.ʃən

projection

Meaning
The strength and range of voice when speaking.
Example
Proper projection ensures that every listener hears clearly.
C2 noun /ˌɒpəˈrɛtə/

operetta

Meaning
a short opera with light and humorous themes
Example
The theater staged a famous operetta by Gilbert and Sullivan.
C1 noun /ʃruː/

shrew

Meaning
a small mouse-like animal; also a woman with a bad temper
Example
The play describes a strong-willed woman as a shrew.
B1 noun /ɪmˈpruːvmənt/

improvement

Meaning
the act of making something better
Example
There has been a significant improvement in his health.
C1 noun /ɪˈvæp.ər.ə.tɪv ˈkuː.lər/

Evaporative cooler

Meaning
a cooling device that uses water evaporation to reduce air temperature
Example
The evaporative cooler works best in dry climates.
C2 verb /ˈrɔɪstər/

roister

Meaning
to revel noisily; to engage in loud, boisterous celebration
Example
The fans roistered in the streets after the victory.
B1 adjective /əˈrɪdʒ.ɪ.nəl/

Original

Meaning
first; fundamental; primary; authentic
Example
This is the original document, not a copy.
C1 noun /vəˈræs.ə.ti/

veracity

Meaning
Conformity to facts; accuracy and truthfulness.
Example
The journalist checked the veracity of the report.
C2 verb /ɪkˈstruːd/

extrude

Meaning
to force something out through a small opening; to shape by pushing material through a mold
Example
The factory extrudes plastic pipes using modern machines.
B1 adverb /ˈsel.dəm/

Seldom

Meaning
not often; rarely; infrequently
Example
She seldom goes to the cinema.
A2 noun /əˈbɪləti/

Ability

Meaning
the power or skill to do something; capacity
Example
She has the ability to solve complex problems.
B2 adjective /sə'spɪʃ.əs/

Suspicious

Meaning
having or showing distrust; doubtful; questionable
Example
The police found his behavior very suspicious.
C2 adjective /ˈbʌlbəs/

bulbous

Meaning
Bulging, round, or swollen in shape; resembling a bulb.
Example
The frog had a bulbous nose and big eyes.
C1 adjective /ˈtæŋ.i/

tangy

Meaning
Having a strong, sharp, and pleasantly biting flavor or taste.
Example
The sauce had a tangy flavor that brightened the dish.
C2 noun /ˈdɒkɪt/

docket

Meaning
a list or schedule of cases to be tried in a court or items to be done
Example
The judge reviewed the docket before starting the session.
C1 adjective /ˈpəʊtəbl/

potable

Meaning
safe to drink; drinkable
Example
The villagers did not have access to potable water.
B1 adjective /ˈʌpər/

upper

Meaning
higher in position or rank
Example
The upper floor of the building is under renovation.
B1 noun /dɪˈzɜːrts/ (noun: reward or punishment deserved)

deserts

Meaning
what someone deserves, especially punishment or reward
Example
He finally got his just deserts for cheating in the exam.
C1 verb ɪˈluː.sɪ.deɪt

elucidate

Meaning
make (something) clear; explain.
Example
The professor elucidated the theory with simple examples.
C2 adjective /ˌhaɪpəˈdɜːrmɪk/

hypodermic

Meaning
relating to the region immediately beneath the skin; also refers to a type of needle or syringe used to inject drugs beneath the skin.
Example
The doctor used a hypodermic needle to administer the vaccine.
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.
C1 noun /ˈtæl.i/

Tally

Meaning
a count or record of a number or amount; a score or total
Example
Keep a tally of how many books you read this month.
C2 adjective /ɪmˈpɒndərəbl̩/

imponderable

Meaning
Something difficult or impossible to estimate, assess, or understand
Example
The outcome of the election depends on many imponderable factors.
A1 modal verb /ʃʊd/

should

Meaning
used to indicate obligation or duty
Example
You should study for your exams.
C1 adjective /ɪˈstreɪndʒd/

estranged

Meaning
no longer close or affectionate with someone; alienated
Example
She felt estranged from her family after the long dispute.
C1 adjective /əˈblɪɡ.ə.tɔː.ri/

obligatory

Meaning
Required by a legal, moral, or other rule; compulsory.
Example
Wearing a seatbelt is obligatory in most countries.
C2 adjective /ˈfrɒθi/

frothy

Meaning
Full of or covered with small bubbles; light and insubstantial.
Example
She ordered a cup of frothy cappuccino.
B2 verb /ˈtrænsplænt/

transplant

Meaning
to move something, especially a plant or organ, from one place to another
Example
The doctors transplanted a kidney into the patient.
B2 noun /ɪnˌsaɪkləˈpiːdiə/

encyclopedia

Meaning
a book or set of books containing information on many subjects, usually arranged alphabetically
Example
She used an encyclopedia to complete her school project.
B2 noun /ɪnˈdʒɛkʃən/

injection

Meaning
the act of introducing a substance into the body through a needle
Example
The nurse gave me an injection to prevent the infection.
C2 noun /ɪnˈdɛntʃər/

indenture

Meaning
A formal legal agreement, contract, or document, often relating to work or service.
Example
In the 18th century, many workers came under indenture to work overseas.
B2 verb /dɪsˈtʃɑːrdʒ/

discharge

Meaning
to release or dismiss from duty; to emit or give off
Example
The hospital will discharge the patient tomorrow.
C2 noun ˈsaɪəns ˈdezət

science-desert

Meaning
A region or area lacking in scientific development, research facilities, or educational institutions.
Example
J.C. Bose thrived in a science-desert.
B1 adjective ˌdem.əˈkræt.ɪk

democratic

Meaning
Relating to or supporting democracy or its principles.
Example
Democratic governance ensures equal rights.
B2 noun /ˈspɛʃəlti/

specialty

Meaning
a particular area of study, work, or interest; something in which a person or place excels
Example
Her specialty is pediatric medicine.
B2 noun /meɪz/

Maze

Meaning
A network of paths designed as a puzzle; a confusing situation
Example
The children got lost in the corn maze at the harvest festival.
A2 noun /ˈoʊpənɪŋ/

opening

Meaning
an act or instance of beginning something
Example
The opening of the new store was a huge success.
C1 verb /məˈnuː.vər/

manoeuver

Meaning
To move skillfully or carefully; to guide or manipulate into a desired position.
Example
The driver skillfully manoeuvered the car through the narrow street.
B2 noun /biːm/

beam

Meaning
a ray or shaft of light; a long piece of wood or metal used to support weight
Example
A beam of sunlight entered through the window.
A1 verb /peɪnt/

paint

Meaning
to apply a colored substance to a surface
Example
She loves to paint landscapes in her free time.
C2 noun /ˈbrɔːdˌsaɪd/

broadside

Meaning
a strong verbal attack or a sheet of paper printed on one side
Example
The politician launched a broadside against his opponent.
C2 noun /ˈhækəlz/

hackles

Meaning
the hairs on the back of an animal’s neck that rise when it is angry or alarmed; figuratively, feelings of anger or resentment
Example
His rude comment raised my hackles.
B1 noun /ˌkjʊr.iˈɑs.ɪ.ti/

Curiosity

Meaning
a strong desire to know or learn something; an unusual or interesting object or fact
Example
Her curiosity about different cultures led her to travel around the world.
C1 noun /ədˈhɪə.rəns/

adherence

Meaning
The practice of following or keeping to a rule, standard, or belief.
Example
Adherence to rules is crucial in any organization.
A2 pronoun /ˈnoʊˌbɑːdi/

nobody

Meaning
no person; not anyone
Example
Nobody came to the party.
C1 adjective /ˈsɒnɪk/

sonic

Meaning
Relating to or involving sound waves or speed of sound.
Example
The jet created a loud boom when it broke the sonic barrier.
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.
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.
B1 noun /ˌiːkəˈnɒmɪks/ or /ˌɛkəˈnɒmɪks/

economics

Meaning
The study of production, consumption, and transfer of wealth.
Example
He is studying economics at university.
C2 noun /ɪnˈsɪɡniə/

insignia

Meaning
A badge or symbol that shows rank, position, or membership.
Example
The soldier proudly wore the insignia of his regiment.
C1 verb /ˈkɒnsɪkreɪt/

consecrate

Meaning
to make something sacred, usually through a religious ceremony
Example
The church was consecrated by the bishop.
C1 adjective /ˈəʊnərəs/

onerous

Meaning
involving a great deal of effort, difficulty, or burden
Example
Fulfilling the contract proved to be an onerous task for the company.
C2 noun /ˈɔːriˌoʊl/

aureole

Meaning
A halo or radiance surrounding the head or body, often in religious art.
Example
The painting showed the saint with an aureole around his head.
C1 verb /bɪˈsɛt/

beset

Meaning
to trouble, harass, or attack on all sides
Example
The village was beset by constant floods.
C1 adjective /ˈbreɪzən/

brazen

Meaning
Bold and without shame; shameless.
Example
She made a brazen attempt to lie in front of everyone.
A2 noun /ˈpʊd.ɪŋ/

Pudding

Meaning
a sweet dessert typically made by boiling or steaming
Example
My grandmother makes delicious chocolate pudding for dessert.
A2 adverb /ˈdɪfərəntli/

differently

Meaning
in a way that is not the same as another or as expected
Example
She approached the problem differently than her colleagues.
C1 verb /ɪnˈlaɪvən/

enliven

Meaning
to make something more lively, interesting, or cheerful
Example
Her jokes helped enliven the dull meeting.
C1 verb /sɪft/

sift

Meaning
to separate or sort through carefully, often using a sieve or by examining closely
Example
She sifted the flour before adding it to the cake mixture.
C1 noun /lɪˈkjʊər/

liqueur

Meaning
A strong, sweet alcoholic drink flavored with fruits, herbs, or spices.
Example
She served a small glass of cherry liqueur after dinner.
C1 noun/adjective /ˈbæstərd/

bastard

Meaning
a child born to unmarried parents (offensive); also used informally as an insult or to describe something unpleasant
Example
He called him a bastard in anger.
A2 noun /frɪdʒ/

fridge

Meaning
a household appliance used to keep food and drinks cold to preserve freshness
Example
I put the milk back in the fridge after breakfast.
B2 noun, adjective /ˈsoʊʃəlɪst/

socialist

Meaning
a person who advocates for socialism; relating to socialism
Example
He is a well-known socialist writer.
C2 adjective /dɪˈstreɪ/

distrait

Meaning
deeply distracted or absent-minded, often due to worry or grief
Example
He looked distrait after hearing the sad news.
B2 adjective /ʌn.rɪˈleɪ.tɪd/

Unrelated

Meaning
having no connection or relationship; not connected by family ties
Example
The two incidents were completely unrelated to each other.
B1 adjective /draɪd/

dried

Meaning
without moisture; preserved by removing water
Example
She added some dried flowers to the vase for decoration.
C1 noun /ˌmɑːr.kɪ.təˈbɪl.ə.ti/

marketability

Meaning
The possibility of commercial success for a product or service
Example
The new product's marketability depends on consumer demand.
B2 verb /sɔːr/

soar

Meaning
to fly or rise high in the air; to increase rapidly or dramatically
Example
The eagle soared high above the mountains.
C1 noun /kənˈfɛdərəsi/

confederacy

Meaning
a group of states, people, or organizations united for a common purpose
Example
The southern states formed a confederacy during the civil war.
C1 adjective /ˈplʌk.i/

plucky

Meaning
having or showing courage and determination
Example
The plucky child rescued the kitten from the tree.
B1 verb /fel/

fell

Meaning
to cut down a tree; to cause to fall; to strike down
Example
The lumberjacks felled several trees in the forest today.
B1 noun fʌnd

fund

Meaning
A sum of money saved or made available for a particular purpose.
Example
The government allocated a fund for disaster relief.
B1 noun /priːst/

priest

Meaning
a person who performs religious duties and ceremonies
Example
The priest blessed the congregation during the Sunday service.
A2 noun /ˈriːdɪŋ/

reading

Meaning
the action or skill of reading
Example
Reading is one of my favorite hobbies.
B1 noun /ˈkɪlər/

killer

Meaning
A person or thing that kills.
Example
The police caught the killer last night.
C2 noun /prɪˈzɛntmənt/

presentment

Meaning
The act of presenting something formally or officially; a formal statement or document.
Example
The lawyer made a presentment of the evidence to the court.
B1 noun /kənˈsʌltənt/

consultant

Meaning
A professional who provides expert advice in a particular area.
Example
The company hired a consultant to improve its marketing strategy.
B2 noun /ˈhedʒhɒɡ/

Hedge-hog

Meaning
a small mammal with a spiny coat that can roll into a ball for defense
Example
The hedgehog rolled into a ball when it felt threatened.
B2 noun wɪnd ˈen.ə.dʒi

wind energy

Meaning
Energy generated from wind using wind turbines to convert kinetic energy into electrical power.
Example
Wind energy is harnessed in Masdar City.
A1 interjection /jɛə/

yeah

Meaning
used to express agreement or affirmation
Example
Yeah, I’ll go to the store with you.
A2 adjective /ˈsaɪ.lənt/

Silent

Meaning
making no sound; quiet; not speaking
Example
The library was completely silent during study hours.
B2 noun /dʒɑːr/

Jar

Meaning
a wide-mouthed container made of glass or pottery; to have a harsh or unpleasant effect
Example
She stored homemade cookies in a large glass jar on the kitchen counter.
B2 noun /ˈdeɪ.tə briːtʃ/

data breach

Meaning
Unauthorized disclosure of sensitive information through security violation
Example
A data breach exposed millions of users' passwords.
C2 verb /ˈdæli/

dally

Meaning
To act or move slowly; to waste time; also to engage in a casual romantic relationship.
Example
He dallied in the garden instead of starting his work.
C1 verb /ədˈmɒnɪʃ/

admonish

Meaning
to warn or reprimand someone firmly; to advise or urge earnestly
Example
The teacher admonished the students for being late.
C2 noun /proʊˈdʒɛnɪtər/

progenitor

Meaning
a direct ancestor; a person or thing that originates something
Example
Researchers traced the custom back to a common progenitor.
C1 noun /bəˈtɒn/

baton

Meaning
A thin stick carried by a conductor to direct an orchestra, or used as a symbol of authority.
Example
The conductor raised his baton to begin the symphony.
B1 verb /əˈsoʊsiˌeɪt/

associate

Meaning
to connect or link things together; to spend time with someone
Example
I associate this song with summer.
C1 adjective /ˈplæsɪd/

placid

Meaning
calm and peaceful, not easily disturbed
Example
She had a placid expression despite the chaos around her.
A2 adjective /ˈfæstɪst/

fastest

Meaning
moving or capable of moving at the highest speed
Example
Usain Bolt is the fastest runner in the world.
A2 adjective /maɪld/

mild

Meaning
not severe or strong; gentle in nature
Example
The patient had only mild symptoms.
C1 verb /rɪˈzaʊnd/

resound

Meaning
To fill a place with sound; to be celebrated or talked about widely.
Example
The hall resounded with applause.
C1 noun /əˈkɔːrdiən/

accordion

Meaning
a musical instrument played by squeezing and expanding with keys and buttons
Example
The musician played a cheerful tune on the accordion.
C1 noun /ˈaʊtˌkraɪ/

outcry

Meaning
A strong expression of public anger or disapproval.
Example
The decision sparked an outcry among the citizens.
C1 noun /rɪˈkɒnɪsəns/

reconnaissance

Meaning
A survey or exploration, especially for military or strategic purposes.
Example
The soldiers conducted a reconnaissance of the enemy camp.
C1 adjective /ˈdek.stər.əs/

dexterous

Meaning
Showing or having skill, especially with the hands; mentally adroit and skillful.
Example
A dexterous programmer can write complex codes effortlessly.
B2 adverb /ʌnˈdaʊtɪdli/

undoubtedly

Meaning
without a doubt, certainly
Example
He is undoubtedly the best player on the team.
B2 adjective /prəˈspɛktɪv/

prospective

Meaning
likely or expected to happen in the future; potential
Example
The company is meeting with prospective clients next week.
B2 adjective /ˈmɛʒərd/

measured

Meaning
carefully considered and deliberate
Example
She spoke in a calm, measured tone.
B1 noun /ˈdez.ət/

Desert

Meaning
a barren area of landscape with little precipitation; an arid region with sparse vegetation
Example
The Sahara Desert is one of the largest hot deserts in the world.
B2 adjective /ˈvɪʃ.əs/

Vicious

Meaning
deliberately cruel or violent; having a savage nature
Example
The vicious dog attacked anyone who came near its territory.
C1 noun ˈæf.lu.əns

affluence

Meaning
The state of having a great deal of money; wealth.
Example
His affluence allowed him to travel the world.
A2 noun /hɪl/

Hill

Meaning
a naturally raised area of land, not as high or craggy as a mountain
Example
The children enjoyed rolling down the grassy hill behind their house during summer vacation.
B2 verb /dɪˈspætʃ/

dispatch

Meaning
to send off to a destination or for a purpose
Example
The company dispatched aid to the flood victims.
C2 noun /ˈmɛtələ(r)dʒi/

metallurgy

Meaning
The science and technology of metals, including their extraction from ores and their processing.
Example
Metallurgy plays a vital role in industrial development.
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.
C2 noun /ˈpɔl.zi/

Palsy

Meaning
paralysis, especially that which is accompanied by involuntary tremors; loss of muscle control
Example
The elderly man suffered from palsy in his hands.
B1 adjective /ˈel.dər.li/

Elderly

Meaning
aged; advanced in years; old
Example
The elderly man walked slowly with his cane.