oxidation
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C1 noun ˌɒk.sɪˈdeɪ.ʃən

oxidation

Meaning
A chemical reaction that involves the combination of a substance with oxygen, often causing deterioration.
Example
Oxidation causes metal surfaces to weaken.
C2 adverb /ˈɪntʃmiːl/

inchmeal

Meaning
Gradually, little by little.
Example
The old castle fell inchmeal into ruin.
C2 verb /rɪˈpruːv/

reprove

Meaning
to criticize or correct someone gently or disapprove of their actions
Example
The teacher reproved the student for being late.
A2 adjective /ˈwʊdən/

wooden

Meaning
made of wood
Example
The house had beautiful wooden floors.
B1 adverb /pəˈlaɪt.li/

Politely

Meaning
in a respectful and considerate manner; courteously; with good manners
Example
She politely declined the invitation because she had other commitments.
C2 adverb /ˈvɛrɪli/

verily

Meaning
truly; certainly; without a doubt
Example
Verily, I say unto you, this is the truth.
C1 noun /ˈbroʊkərɪdʒ/

brokerage

Meaning
A firm that acts as an intermediary between buyers and sellers, often charging a fee.
Example
The real estate brokerage helped them find a new home.
B2 noun /ɡræm/

Gram

Meaning
chickpea; a leguminous plant and its edible seed
Example
She cooked gram curry for lunch today.
C1 noun ˈprɛvələns

prevalence

Meaning
The fact or condition of being widespread; the extent to which something exists or occurs
Example
The prevalence of aging issues requires immediate attention.
B1 noun, verb /ɡrɪl/

grill

Meaning
a metal frame used for cooking food over an open fire; to cook food on such a frame
Example
We grilled some chicken for dinner.
C2 noun əˌdʌl.təˈreɪ.ʃən

adulteration

Meaning
The action of making something poorer in quality by the addition of another substance.
Example
Adulteration of food is a serious health risk.
B2 noun /prəˈseʃ.ən/

Procession

Meaning
a group of people or vehicles moving forward in an organized way, especially as part of a ceremony
Example
The wedding procession walked slowly to the church.
B2 verb /rɪˈnuː/

renew

Meaning
to make something new again or extend its period of validity
Example
I need to renew my passport before traveling.
A1 adjective /ˈiːzi/

easy

Meaning
not difficult; requiring little effort
Example
The exam was surprisingly easy.
B1 noun /ˈɝːθ.kweɪk/

earthquake

Meaning
A sudden and violent shaking of the ground as a result of movements within the earth's crust.
Example
A powerful earthquake struck Japan last night.
B2 adverb /ˈænjuəli/

annually

Meaning
once every year; yearly
Example
The company holds a general meeting annually.
C1 verb /pɑːrs/

parse

Meaning
to analyze a sentence or text grammatically or logically
Example
The software can parse large amounts of text data efficiently.
C2 noun ˈtɛlɪˌmɛtri

telemetry

Meaning
The process of recording and transmitting the readings of an instrument.
Example
The spacecraft transmitted telemetry data back to Earth.
C2 verb /dɪˈdʒɛkt/

deject

Meaning
to make someone feel sad, depressed, or dispirited
Example
The news of his failure seemed to deject him deeply.
C1 noun ˌdɛɡrəˈdeɪʃən

degradation

Meaning
The condition or process of degrading or being degraded.
Example
Soil degradation due to overuse is a growing issue.
C2 noun, adjective /ˈɡɒsəmər/

gossamer

Meaning
Something light, thin, and delicate, like a fine fabric or cobweb.
Example
The bride's veil was made of delicate gossamer fabric.
C1 noun /əˈkuːstɪks/

acoustics

Meaning
the science of sound, or the properties of a space that affect how sound is heard
Example
The hall’s excellent acoustics made the orchestra sound rich and clear.
C1 adverb /ˈmiːk.li/

Meekly

Meaning
in a quiet, gentle way; without resistance or protest
Example
He meekly accepted the criticism without arguing.
B1 verb /breɪk/

brake

Meaning
to slow down or stop a vehicle by applying a brake
Example
He braked suddenly to avoid hitting the dog.
B2 noun, verb /bluːm/

bloom

Meaning
to produce flowers; to develop or flourish; a flower or the state of flowering
Example
The roses bloom beautifully every spring.
C1 adjective /ˈɡrʌdʒɪŋ/

grudging

Meaning
Reluctant or unwilling; given or allowed only with hesitation.
Example
She gave him a grudging smile after the argument.
C1 adjective /ˈrɛvərənt/

reverent

Meaning
Showing deep and solemn respect.
Example
They listened to the speech in a reverent silence.
C2 noun /ˈseɪ.li.əns/

salience

Meaning
The quality of being particularly noticeable or important; prominence.
Example
The salience of the issue was highlighted in the debate.
C2 noun /ɪmˈpruː.dəns/

Imprudence

Meaning
the quality of being imprudent; lack of care for consequences; recklessness
Example
His financial imprudence led to bankruptcy within just two years.
B2 adjective /ˈʃɔːrt ˌsaɪtɪd/

Short-sighted

Meaning
lacking foresight or consideration for the future; myopic
Example
His short-sighted decision to quit school early affected his career prospects.
C1 noun /ɪkˈstɔːr.ʃən/

extortion

Meaning
the practice of obtaining something, especially money, through force or threats
Example
The businessman was arrested for extortion after threatening his partner.
C2 verb /əbˈskɒnd/

abscond

Meaning
to leave secretly and quickly, often to avoid arrest or punishment
Example
The thief tried to abscond with the stolen jewelry.
A2 noun /trʌk/

truck

Meaning
a large motor vehicle for transporting goods
Example
The truck was loaded with boxes for the warehouse.
B1 noun /dʌst/

dust

Meaning
Fine particles of matter.
Example
Road dust is a major pollutant in urban areas.
C1 noun ˈrɛp.ə.twɑːr

repertoire

Meaning
A stock of plays, dances, or pieces that a company or a performer knows or is prepared to perform.
Example
The actor's repertoire includes both comedy and drama.
A2 adjective /wɪrd/

weird

Meaning
suggesting something supernatural or very strange; unusual
Example
The movie had a weird ending that nobody expected.
B2 adjective /prɪˈzentəbl/

Presentable

Meaning
neat and suitable for being seen in public; acceptable in appearance
Example
Make sure you look presentable for the job interview.
C2 noun/adjective /prɪˈsɪpɪtənt/

precipitant

Meaning
As a noun: a substance that causes a substance to be deposited from a solution; as an adjective: acting hastily or impulsively.
Example
The chemist added a precipitant to the solution to observe the reaction.
C2 noun /ˌvælədɪkˈtɔːriən/

valedictorian

Meaning
The student with the highest academic achievements in a graduating class, often chosen to give the farewell speech.
Example
She was honored as the valedictorian of her class.
C2 adjective /ˌnɒndɪˈskrɪpt/

nondescript

Meaning
Lacking distinctive or interesting features; dull and unremarkable.
Example
He lives in a nondescript apartment building on the edge of town.
C1 adjective /priˈɛmptɪv/

preemptive

Meaning
Serving or intended to prevent something by taking action first.
Example
The government took preemptive measures to control inflation.
B1 adjective /ˌel.ɪˈmen.tər.i/

Elementary

Meaning
basic; fundamental; primary level
Example
He learned elementary mathematics in school.
B2 verb /əˈstaʊnd/

astound

Meaning
to greatly surprise or amaze someone
Example
The magician's final trick astounded the audience.
C2 noun /ˈsɒlɪˌsɪzəm/

solecism

Meaning
a grammatical mistake in speech or writing; a breach of good manners or etiquette
Example
His speech was full of solecisms and awkward phrases.
C1 noun /hɪpˈnoʊsɪs/

hypnosis

Meaning
A trance-like state of consciousness usually induced by suggestion.
Example
She underwent hypnosis to overcome her fear of flying.
B2 verb fəˈsɪl.ɪ.teɪt

facilitate

Meaning
Make an action or process easier or more achievable; to help bring about.
Example
Good infrastructure facilitates economic growth.
B2 noun /ˌmænjəˈfæktʃərɪŋ/

manufacturing

Meaning
the process of making products on a large scale using machinery
Example
The country is investing heavily in the manufacturing sector.
C1 noun /tɪˈmɪdəti/

timidity

Meaning
lack of courage or self-confidence
Example
His timidity kept him from speaking up during the meeting.
B2 noun /ˈʃɔːr.tɪdʒ/

Shortage

Meaning
a lack or deficiency of something that is needed or expected
Example
There is a severe water shortage in the region.
A1 adverb /ˈjuː.ʒu.ə.li/

Usually

Meaning
in most cases; generally; as a rule
Example
I usually wake up at 7 AM every morning.
B2 verb /əˈbɒlɪʃ/

abolish

Meaning
to formally end or stop something; to cancel or eliminate completely
Example
The government decided to abolish the old tax system.
B2 noun /fɪst/

Fist

Meaning
a person's hand when the fingers are bent in toward the palm and held there tightly
Example
He raised his fist in victory after winning the championship match.
B1 noun /əˈpɒlədʒi/

apology

Meaning
a statement expressing regret for something wrong or hurtful
Example
He offered an apology for being late to the meeting.
C1 noun /fəˈtæləti/

fatality

Meaning
An occurrence of death by accident, disaster, or violence.
Example
The accident resulted in one fatality.
B2 verb /ɪmˈpoʊz/

impose

Meaning
to force someone to accept something; to establish or apply by authority
Example
The government imposed new taxes on luxury goods.
C2 noun /ˌkɒzməˈpɒlɪtənɪzəm/

cosmopolitanism

Meaning
the ideology that all human beings belong to a single community
Example
Cosmopolitanism promotes respect and understanding across cultures.
C1 adjective /pəˈrɪʒən/

parisian

Meaning
relating to Paris or its people
Example
She wore a Parisian style dress at the party.
C2 adjective ˈtɛnsaɪl

tensile

Meaning
Relating to tension; capable of being stretched.
Example
The tensile strength of the material is crucial for the construction project.
A2 noun/verb/adjective /ˈsʌbdʒɪkt/ (noun), /səbˈdʒɛkt/ (verb)

subject

Meaning
noun: a topic or theme; verb: to cause to undergo; adjective: dependent or under authority
Example
The teacher introduced a new subject in class.
B2 adverb /hɛns/

hence

Meaning
for this reason; as a result
Example
She was the best candidate, hence she was chosen for the job.
C1 verb /dɪˈfaɪl/

defile

Meaning
to pollute, corrupt, or make dirty
Example
The river was defiled by industrial waste.
C1 adjective /ˈstɛlər/

stellar

Meaning
Relating to stars; outstanding or excellent.
Example
She gave a stellar performance in the play.
C2 verb /ɪˈkwɪvəˌkeɪt/

equivocate

Meaning
To speak ambiguously or avoid giving a clear answer.
Example
The politician equivocated when asked about the scandal.
C2 noun /ˈtʃælɪs/

chalice

Meaning
A large cup or goblet, typically used for drinking wine in religious ceremonies.
Example
The priest lifted the golden chalice during the ceremony.
C2 adjective /ˈdʒɔːnti/

jaunty

Meaning
Having a lively, cheerful, and self-confident manner or appearance.
Example
He walked into the room with a jaunty step.
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.
C1 noun /ˈdɔːrˌkiːpər/

doorkeeper

Meaning
A person whose job is to guard or manage the entrance of a building or room.
Example
The doorkeeper checked everyone’s passes before they entered the hall.
C1 noun ˌɪnsjʊˈleɪʃən

insulation

Meaning
Material used to prevent heat, sound, or electricity from being transmitted from one area to another.
Example
Insulation of food storage areas can prevent pests from entering.
C1 verb /rɪˈdiːm/

redeem

Meaning
to compensate for faults or mistakes; to exchange something for value
Example
He managed to redeem his reputation after the scandal.
C2 adjective /ˌsuːpərˈnuːmərɛri/

supernumerary

Meaning
Exceeding the usual number; extra or unnecessary.
Example
The play included several supernumerary actors to fill the background scenes.
B1 noun /bɑːm/

Bomb

Meaning
an explosive device designed to cause damage or destruction
Example
The bomb disposal unit carefully defused the explosive device.
C2 adjective /ˈlaɪbələs/

libelous

Meaning
containing or constituting a false published statement that damages a person's reputation
Example
The article was found to be libelous and had to be retracted.
A2 adjective /ˈjuːs.ləs/

Useless

Meaning
having no beneficial purpose; not useful
Example
This broken computer is completely useless.
C1 verb /ɪnˈkɑːrsəreɪt/

incarcerate

Meaning
to imprison or confine someone
Example
The authorities incarcerated the criminal after the trial.
B2 verb /koʊp/

cope

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

knell

Meaning
The sound of a bell, especially when rung solemnly for a death or funeral; a signal of the end or failure of something.
Example
The knell of the church bell echoed through the valley at dusk.
C1 noun /ˈkɜːrnəl/

kernel

Meaning
the central, most important part of something; the edible part of a nut or seed
Example
The kernel of the argument was about fairness.
B1 noun /kənˌfɜːˈmeɪʃən/

confirmation

Meaning
the action of confirming something or the state of being confirmed
Example
She received a confirmation email for her appointment.
B2 adjective /ˈærəɡənt/

Arrogant

Meaning
having an exaggerated sense of one's importance; proud
Example
His arrogant behavior made him very unpopular.
C1 noun /ɪɡˈzɜːr.ʃən/

exertion

Meaning
Using energy or effort to achieve something.
Example
Excessive exertion can lead to fatigue and burnout.
C1 adjective /ˈɪəri/

eerie

Meaning
Strange and frightening in a mysterious way.
Example
The abandoned house had an eerie silence.
B2 adjective /ˈvɜː.sə.taɪl/

versatile

Meaning
Able to adapt or be adapted to many different functions or activities; having many uses or applications.
Example
He is a versatile musician who can play multiple instruments.
B2 noun ˈprɒs.pekt

prospect

Meaning
The possibility or likelihood of some future event occurring.
Example
The project's success holds great prospect for the economy.
B1 noun /ˈkændɪdeɪt/

candidate

Meaning
A person who applies for a job or is nominated for election.
Example
The candidate gave a strong speech during the debate.
B2 noun /ˈsikwəns/

Sequence

Meaning
a particular order in which related events, movements, or things follow each other; a set of related events, movements, or things that follow each other in a particular order
Example
The dance sequence was perfectly choreographed.
B2 noun /ˌvɪz.ɪˈbɪlɪti/

visibility

Meaning
The state of being able to see or be seen; exposure or prominence.
Example
Increased visibility on social media can help businesses grow.
C2 adjective /ˌkloʊs ˈhɔːld/

close-hauled

Meaning
of a sailing ship, sailing as nearly as possible towards the direction from which the wind is blowing.
Example
The yacht was close-hauled as it cut through the waves.
B2 noun /ˈlɪstɪŋ/

listing

Meaning
a series of items or names written or printed in a specific order
Example
The listing of available jobs was updated daily.
B2 noun /ɪnˈsen.tɪv/

Incentive

Meaning
a thing that motivates or encourages someone to do something; a reward or penalty that influences behavior
Example
The company offered a cash incentive to employees who exceeded their sales targets.
A1 verb /ɡroʊ/

grow

Meaning
to become larger or greater over a period of time; to develop
Example
Plants grow faster in spring.
C2 noun /ˈstrætədʒəm/

stratagem

Meaning
a plan or scheme designed to achieve a particular goal, often by trickery
Example
The general devised a clever stratagem to outwit the enemy.
B2 verb /ˈstɑːrtl/

startle

Meaning
To surprise or frighten someone suddenly.
Example
The loud noise startled the children.
B2 adverb /ˈʌt.ə.li/

Utterly

Meaning
completely; absolutely; totally
Example
The movie was utterly boring and I fell asleep.
B2 adjective /ˈhoʊmli/

Homely

Meaning
simple and comfortable; unpretentious; plain in appearance; cozy and familiar
Example
She enjoyed the homely atmosphere of the small café.
C1 noun ˈpær.ə.daɪm

paradigm

Meaning
A typical example or pattern of something; a model or framework for understanding or approaching something.
Example
The paradigm of education is changing with digital technology.
C2 adjective /ˈkreɪvən/

craven

Meaning
cowardly; lacking courage
Example
He was too craven to stand up for his beliefs.
B2 noun /ɡʌm/

Gum

Meaning
the firm flesh that surrounds the roots of the teeth; a viscous secretion
Example
The dentist checked her gum for any signs of disease.
B1 noun /paɪp/

pipe

Meaning
a tube used for conveying liquids or gases
Example
The plumber fixed the broken pipe.
C2 noun /ˈhɒɡz.hɛd/

hogshead

Meaning
A large cask or barrel, traditionally used for storing liquids like wine or beer.
Example
The cellar was filled with hogsheads of ale.
C2 adjective /ʌnˈsʌlid/

unsullied

Meaning
not spoiled or made impure; perfectly clean or pure
Example
His reputation remained unsullied despite the accusations.
C2 verb /bɪˈsmɪər/

besmear

Meaning
to smear or cover with a sticky or dirty substance; to soil
Example
His clothes were besmeared with mud.
C1 adjective /ʌlˈtɪəriər/

ulterior

Meaning
hidden or secret, often with a selfish motive
Example
He invited her with an ulterior motive.
B2 adjective /dɪˈstɪŋkt/

Distinct

Meaning
separate and different; clear and recognizable; unique
Example
Each painting has its own distinct style and character.
B2 verb /ˈresəl/

wrestle

Meaning
to fight by grappling and trying to throw down an opponent; to struggle with a problem
Example
The children like to wrestle on the playground.
B1 noun /trænzˈleɪtər/

translator

Meaning
a person or tool that converts words or text from one language into another
Example
The translator helped the tourists understand the guide.
C2 noun /ˈmɛtəl/

mettle

Meaning
A person's ability to cope well with difficulties or to face demanding situations with courage.
Example
The young athlete showed his mettle in the final match.
C2 noun /rɪˈvaɪ.zəl/

revisal

Meaning
The act of revising, reviewing, or making changes to something.
Example
The revisal of the contract took longer than expected.
B2 adjective /ɪˈmens/

Immense

Meaning
extremely large or great; huge
Example
The immense mountain range stretched across the horizon.
C2 noun /ˈmɪlk pɒt/

Milk-pot

Meaning
a container specifically used for storing or serving milk
Example
She poured fresh milk from the milk-pot into her glass.
B2 noun /ˈspɒnsər/

sponsor

Meaning
a person or organization that provides funds for a project or activity in exchange for publicity or support
Example
The company became the main sponsor of the event.
C2 noun /ˈkwɪzlɪŋ/

quisling

Meaning
A traitor who collaborates with an enemy force occupying their country.
Example
During the war, he was branded a quisling for aiding the invaders.
C2 noun /ˌɪnvəˈlɪdɪti/

invalidity

Meaning
the state of being invalid, legally void, or lacking force or validity
Example
The court ruled that the contract suffered from invalidity.
C2 noun /ˈhelmz.mən/

Helmsman

Meaning
a person who steers a ship or boat; the person at the helm of a vessel
Example
The experienced helmsman skillfully guided the yacht through the narrow channel during the storm.
C1 adjective /fəˈroʊ.ʃəs/

Ferocious

Meaning
savagely fierce, cruel, or violent; extremely aggressive
Example
The ferocious storm destroyed many houses in the coastal area.
B1 adjective /ˈteknɪkəl/

Technical

Meaning
relating to or involving special skills or knowledge; requiring specialized training
Example
The manual contains technical instructions for operating the machine.
A2 verb /ˈɔːfər/

offer

Meaning
to present something for acceptance or rejection; to propose
Example
She offered to help with the project.
C2 adjective /ˌɪndɪˈfætɪɡəbl̩/

indefatigable

Meaning
persisting tirelessly; incapable of being fatigued
Example
Her indefatigable spirit kept the team motivated during the long project.
C1 noun /ˌpændəˈmoʊniəm/

pandemonium

Meaning
Wild and noisy disorder or confusion; uproar.
Example
When the concert was canceled, pandemonium broke out among the crowd.
B2 noun /ˈsɜːr.tən.ti/

Certainty

Meaning
firm conviction that something is the case; the quality of being reliably true
Example
We can say with certainty that the project will be completed on time.
C1 adjective /klæd/

clad

Meaning
dressed or covered in a particular way
Example
The knight was clad in shining armor.
C2 noun /ˈɡɜːrn.zi/

Guernsey

Meaning
a knitted sweater; a type of woolen pullover
Example
He wore a warm guernsey during the cold winter evening.