irreversible
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C1 adjective /ˌɪrɪˈvɜːrsəbl/

irreversible

Meaning
Not able to be undone, changed, or reversed.
Example
The damage caused by the fire was irreversible.
B2 noun ˈɪnər strɛŋkθ

inner strength

Meaning
Mental or spiritual power that helps a person cope with difficulties.
Example
Community service fosters inner strength in individuals.
C1 adjective /ˈplaɪəbəl/

pliable

Meaning
easily bent or flexible; adaptable
Example
The metal is pliable enough to be shaped into jewelry.
C2 noun /kɛn/

ken

Meaning
one's range of knowledge or understanding
Example
Quantum physics is beyond my ken.
C1 noun ˌɪntədɪˈpɛndənsi

interdependency

Meaning
The dependence of two or more people or things on each other.
Example
The interdependency of the countries led to greater cooperation.
C2 noun /spjuːm/

spume

Meaning
Froth or foam, especially found on waves or liquids.
Example
The waves crashed against the rocks, leaving spume in the air.
C1 noun /ˈɛpɪθɛt/

epithet

Meaning
A descriptive phrase or word used to characterize someone or something, often as a nickname.
Example
He earned the epithet ‘The Great’ for his remarkable achievements.
C2 noun /ˌɔːskʌlˈteɪʃən/

auscultation

Meaning
The act of listening to internal sounds of the body, typically using a stethoscope.
Example
The doctor performed auscultation to check the patient’s lungs.
A2 noun /ˈdæn.sər/

Dancer

Meaning
a person who performs dance, typically as a profession or art form
Example
The dancer performed gracefully on the stage.
C2 adjective /ˈfætʃuəs/

fatuous

Meaning
silly or foolish, especially in a self-satisfied way
Example
His fatuous comments during the meeting annoyed everyone.
C1 noun /ˌɑːrbɪˈtreɪʃən/

arbitration

Meaning
the process of resolving a dispute through an impartial third party whose decision is binding; formal judgment outside a court
Example
The contract requires arbitration to settle any disputes.
B1 adjective /ˈɡɪl.ti/

Guilty

Meaning
having committed a crime or offense; feeling responsible for wrongdoing
Example
She felt guilty about lying to her parents.
C2 adjective /ɪnˈvaɪələbl/

inviolable

Meaning
never to be broken, dishonored, or violated
Example
Human rights are considered inviolable in modern democracies.
A2 noun /siːd/

seed

Meaning
the small, hard part of a plant from which a new plant can grow
Example
I planted a seed in the garden.
C2 verb /ɪnˈdjuː/

endue

Meaning
To provide or endow with a quality or ability.
Example
The leader was endued with wisdom and courage.
A1 noun /tiː/

Tea

Meaning
a hot drink made by pouring boiling water onto dried leaves
Example
We drink tea every morning at breakfast.
C1 verb /mɪns/

mince

Meaning
to cut into very small pieces; to walk with short quick steps
Example
She minced the garlic for the recipe.
A1 adjective /fɜːrst/

first

Meaning
coming before all others in time, order, or importance
Example
She was the first to arrive at the meeting.
C1 noun /ˈkæptər/

captor

Meaning
a person or group who has captured someone or something
Example
The hostage managed to escape from his captors.
C1 noun /ˈprɑːtɪstənt/

protestant

Meaning
a member of the Christian church that separated from the Roman Catholic Church during the Reformation
Example
Martin Luther was a key figure in the Protestant Reformation.
B2 noun ɪnˈfleɪʃən

inflation

Meaning
A general increase in prices and fall in the purchasing value of money.
Example
Inflation erodes the purchasing power of consumers.
C1 noun ˈdʒɛnɪsɪs

genesis

Meaning
The origin or mode of formation of something.
Example
The genesis of the internet changed the world forever.
C1 noun /ˌpɜːsəˈnælɪzeɪʃən/

personalization

Meaning
The action of making something personal or individual; customization.
Example
Personalization in marketing improves customer engagement.
C2 noun ˈɒpjʊləns

opulence

Meaning
Great wealth or luxuriousness.
Example
The opulence of the mansion was evident in its ornate furnishings.
C1 adjective /ʌnˈθɪŋkɪŋ/

unthinking

Meaning
done without careful thought; automatic or thoughtless
Example
His unthinking remark hurt her feelings.
B2 adverb /ˈsɪmɪlərli/

similarly

Meaning
in a similar way
Example
Similarly, we can achieve success with dedication and hard work.
C1 verb /ˈpɛtrɪfaɪ/

petrify

Meaning
to make someone so frightened that they are unable to move or think; to turn into stone
Example
The loud noise petrified the little child.
B2 noun /ˈeɪkər/

acre

Meaning
a unit of land area equal to 4,840 square yards (about 4,047 square meters)
Example
The farmer owns five acres of fertile land.
B1 verb /dɪˈliːt/

delete

Meaning
to remove or erase something, especially written or recorded information
Example
He accidentally deleted all the files from his computer.
C2 noun /ˈɜːrtʃɪn/

urchin

Meaning
a mischievous or poorly dressed child, often from the streets
Example
The ragged urchins played by the riverbank.
A2 verb ˈfoʊkəs

focus

Meaning
To concentrate attention or effort on something; to direct one's attention or efforts towards a particular activity, subject, or problem.
Example
Focus on what truly matters to simplify your life.
B2 adjective /ˌʌndɪˈstɜːrbd/

Undisturbed

Meaning
not interrupted or interfered with; calm and peaceful
Example
She slept undisturbed for eight hours.
C2 noun /ɪmp/

imp

Meaning
a small mischievous devil or sprite; a playful troublemaker
Example
The child was acting like a little imp, hiding his toys everywhere.
C2 adjective /dɪsˈkɒnsələt/

disconsolate

Meaning
very unhappy and unable to be comforted
Example
She was disconsolate after hearing the bad news.
C1 noun /ˈæmnəsti/

amnesty

Meaning
An official pardon granted to people who have been convicted of political offenses.
Example
The government announced an amnesty for all political prisoners.
C1 noun əˈniː.mi.ə

anemia

Meaning
A condition in which there is a deficiency of red blood cells or hemoglobin in the blood.
Example
Genetic therapy addresses anemia effectively.
B2 noun /ˈtrɪl.jən/

trillion

Meaning
a number equal to 1,000 billion, or 10^12
Example
The company's worth has risen to over a trillion dollars.
C1 adjective /ˌɒmnɪˈprezənt/

omnipresent

Meaning
(of God) present everywhere at the same time.
Example
Social media has become an omnipresent force in modern society.
C2 verb /ˈɡræn.jʊ.leɪt/

granulate

Meaning
To form or cause to form into grains or small particles.
Example
The sugar began to granulate as it cooled.
B1 adjective /ʌnˈʃʊr/

unsure

Meaning
not certain or confident; feeling doubt
Example
She felt unsure about the decision.
B1 noun /ˈtʃiːtər/

cheater

Meaning
a person who cheats or acts dishonestly to gain an advantage
Example
He was caught and labeled as a cheater during the exam.
A2 verb /ˈmenʃən/

mention

Meaning
to refer to something briefly; to speak about or name
Example
She forgot to mention the meeting time.
B1 noun /ˌɒp.əˈtjuː.nə.ti/

opportunity

Meaning
A favorable chance or set of circumstances that makes it possible to do something.
Example
She seized the opportunity to study abroad.
C1 verb /ˈmæsəkər/

massacre

Meaning
to kill a large number of people brutally; to defeat decisively
Example
The army massacred the innocent civilians.
C1 adjective /dʒuːˈdɪʃ.əl/

judicial

Meaning
relating to judges, courts, or the administration of justice
Example
The new law faced strong judicial review before implementation.
B1 noun /əˈkaʊnt/

Account

Meaning
a record of money received and paid out; a report or description of an event
Example
She opened a savings account at the bank.
B2 verb /slæm/

slam

Meaning
to close or hit something with great force
Example
He slammed the door angrily after the argument.
C1 adjective /ˈnɪmbəl/

nimble

Meaning
Quick and light in movement or thought.
Example
The dancer’s nimble steps impressed the audience.
C2 adjective /ˈtrʌk.jʊ.lənt/

truculent

Meaning
Eager or quick to argue, fight, or show aggression.
Example
She became truculent when her ideas were challenged.
C2 noun /əˈdɛndəm/

addendum

Meaning
an additional item or piece of information added at the end of a document or book
Example
The report included an addendum with updated statistics.
B1 adjective /ʌnˈkaɪnd/

Unkind

Meaning
cruel; not nice or caring toward others
Example
It was unkind of him to make fun of her appearance.
C2 verb /dɪˈsɪmjʊˌleɪt/

dissimulate

Meaning
To disguise or conceal one's true feelings or intentions.
Example
He tried to dissimulate his fear with a smile.
C2 adjective /krɪˈpʌskjʊlər/

crepuscular

Meaning
relating to twilight or active during twilight
Example
Bats are crepuscular animals, most active at dawn and dusk.
B2 noun /ˈkʊriər/

courier

Meaning
a person or company that delivers messages, packages, or mail
Example
The courier delivered the documents on time.
B2 noun, verb /kloʊk/

cloak

Meaning
a loose outer garment; to cover, hide, or disguise
Example
The spy cloaked his identity with a false name.
C2 adjective /ˌlɪlɪˈpjuːʃən/

lilliputian

Meaning
Extremely small or tiny; trivial or petty.
Example
The model village was filled with lilliputian houses.
B2 verb dɪsˈrʌpt

disrupt

Meaning
To interrupt or disturb the normal progress or activity of something.
Example
Individual pursuits disrupt social harmony.
C1 noun /ˌtrɛpɪˈdeɪʃən/

trepidation

Meaning
a feeling of fear or anxiety about something that may happen
Example
She opened the letter with some trepidation.
B1 verb /ter/

tear

Meaning
to pull apart or damage by force; to rip
Example
Be careful not to tear the paper.
B2 adjective /ˈɛəri/

airy

Meaning
Spacious and well-ventilated; light and breezy.
Example
The new apartment is bright and airy.
A2 noun /dɪər/

Deer

Meaning
a graceful wild animal with antlers, especially the male
Example
We saw a beautiful deer grazing in the meadow.
A1 verb /kʌm/

come

Meaning
to move toward a place; to arrive at a place
Example
Please come to my birthday party.
C2 verb /leɪv/

lave

Meaning
To wash or bathe.
Example
She laved her face with cool water.
C1 adjective /ˈmærɪtəl/

marital

Meaning
Relating to marriage or the relationship between husband and wife.
Example
They sought counseling to resolve their marital issues.
C1 adjective /ɪnˈtjuː.ɪ.tɪv/

intuitive

Meaning
Based on instinctive understanding rather than reasoning.
Example
The software has an intuitive design that makes it easy to use.
B2 verb /sweɪ/

sway

Meaning
To move or cause to move slowly or rhythmically back and forth; to influence someone's opinion or decision.
Example
The trees swayed gently in the breeze.
C2 noun /ˌkɒnsæŋˈɡwɪnɪti/

consanguinity

Meaning
The fact of being descended from the same ancestor; blood relationship.
Example
The degree of consanguinity was important in inheritance laws.
B1 noun /ˌdɪsəˈpɔɪntmənt/

disappointment

Meaning
the feeling of sadness or displeasure caused by the non-fulfillment of one's hopes or expectations
Example
Her face showed deep disappointment after hearing the results.
C1 adjective ˌbjʊə.rəˈkræt.ɪk

bureaucratic

Meaning
Involving or characterized by complex rules and procedures that can delay the achievement of goals.
Example
Bureaucratic red tape often delays project approvals.
C1 verb /ˈskʌt.əl/

scuttle

Meaning
To run hurriedly with short, quick steps; or to deliberately sink a ship.
Example
The children scuttled back to their seats when the teacher entered.
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.
A1 noun /ˈdɒktər/

doctor

Meaning
A qualified medical professional who treats illnesses and injuries.
Example
The doctor prescribed medicine for the patient.
C1 noun dɪˌtɪə.ri.əˈreɪ.ʃən

deterioration

Meaning
The process of becoming progressively worse; decline in quality, condition, or strength.
Example
Poor maintenance leads to material deterioration.
A2 verb /əˈnɔɪ/

annoy

Meaning
to irritate or bother someone and make them feel a little angry or uncomfortable
Example
His constant humming started to annoy everyone in the room.
C2 noun /ˈdʒɪŋɡoʊɪst/

jingoist

Meaning
a person who supports jingoism; an extreme nationalist with aggressive foreign policies
Example
He was labeled a jingoist for his extreme views.
B1 noun /ˈθɛrəpɪst/

therapist

Meaning
a person trained to provide treatment or counseling for physical or mental health
Example
The therapist helped him overcome his anxiety.
B2 verb /ˈstʌmbəl/

stumble

Meaning
to trip or lose balance while walking or running; to make a mistake or falter
Example
He stumbled on the uneven pavement.
C1 adjective /dɪˈpreɪvd/

depraved

Meaning
morally corrupt or wicked
Example
The film depicts the life of a depraved criminal.
C2 noun /ˈpɑːrləns/

parlance

Meaning
a particular way of speaking or using words, common to a group
Example
In legal parlance, the term has a different meaning.
B1 verb /dɪˈpɛndɪŋ/

depending

Meaning
Being contingent on or influenced by something.
Example
The success of the plan is depending on the team's effort.
C1 adjective /moʊˈmentəs/

Momentous

Meaning
of great importance or significance; having far-reaching consequences
Example
The signing of the peace treaty was a momentous occasion for both countries.
B2 verb /drɪft/

drift

Meaning
to move slowly, especially by air or water currents
Example
The boat began to drift away from the shore.
C1 noun /ˈkæn.ə.pi/

canopy

Meaning
The upper layer of a forest formed by the crowns of trees; overhead cover.
Example
The rainforest canopy provides shelter to many birds and insects.
A2 verb /prɪˈpɛər/

prepare

Meaning
to make ready; to get something ready for use
Example
She needs to prepare dinner for her family.
B2 verb /dʒɑːɡ/

jog

Meaning
to run at a slow, steady pace for exercise
Example
She jogs every morning in the park.
C1 noun ˌdep.əˈzɪʃ.ən

deposition

Meaning
The action of depositing something; the laying down of matter by a natural process.
Example
River deposition leads to the formation of new landmasses.
B1 noun /ˌkænsəˈleɪʃən/

cancellation

Meaning
the act of stopping something that was planned or scheduled; the act of nullifying or invalidating something
Example
The airline announced the cancellation of several flights due to bad weather.
C2 verb /ʌnˈfɛtər/

unfetter

Meaning
to release from restraint or restriction; to free
Example
The new law will unfetter small businesses from excessive regulations.
B2 adjective /ˌʌnɪnˈtenʃənəl/

Unintentional

Meaning
not done on purpose; accidental
Example
The damage to the car was unintentional.
A2 noun /ɡlʌvz/

Gloves

Meaning
coverings for the hands with separate parts for each finger
Example
She wore warm gloves to protect her hands from the cold.
B1 noun /ˈbeɪ.kɪŋ ˈpaʊ.dər/

Baking Powder

Meaning
a dry chemical leavening agent used to increase volume and lighten texture in baked goods
Example
The recipe calls for two teaspoons of baking powder.
C1 noun /ˈsaɪd.laɪn dɪˈskʌʃənz/

sideline discussions

Meaning
Informal or secondary conversations that occur outside the main agenda of a formal meeting.
Example
Sideline discussions often lead to agreements.
C2 noun /ˈædʒ.ə.tənt/

Adjutant

Meaning
a large water bird with long legs and neck, also known as adjutant stork
Example
The adjutant stork stood motionless in the shallow water.
B1 verb /ˈberi/

bury

Meaning
to put in the ground; to hide; to cover completely
Example
The dog buries its bone in the yard.
B2 verb /kənˈfɔːrm/

conform

Meaning
To comply with rules, standards, or laws.
Example
Students must conform to the school regulations.
C2 noun /ˈrɪvjʊlət/

rivulet

Meaning
a small stream of water; a tiny brook
Example
A rivulet ran down the hillside after the rain.
C1 adjective /ˈɡæst.li/

ghastly

Meaning
Causing great horror or fear; very unpleasant.
Example
The crime scene was a ghastly sight.
C2 verb /ɪnˈdaɪt/

indite

Meaning
To write or compose (literary or formal works).
Example
The poet indited a heartfelt sonnet.
C2 verb /ˈvɛəriəˌɡeɪt/

variegate

Meaning
To diversify or mark with different colors or patterns.
Example
The artist used different shades to variegate the design.
B2 verb /ˌriːˈbɪld/

rebuild

Meaning
to build something again after it has been damaged or destroyed
Example
The villagers worked together to rebuild the bridge after the flood.
B1 abbreviation /ˌaɪˈiː/

ie

Meaning
That is to say; used to clarify or explain something more precisely.
Example
Many amphibians, i.e., frogs and salamanders, can live both in water and on land.
B2 adjective /ˈtʃuː.zi/

Choosey/Choosy

Meaning
very careful in choosing; selective; particular about what one likes or accepts
Example
He's very choosy about the restaurants where he eats.
B2 verb /ˈhezɪteɪt/

hesitate

Meaning
to pause before acting; to be uncertain about what to do
Example
Don't hesitate to ask for help.
B2 noun /ˈtriː.oʊ/

trio

Meaning
A group of three people or things, especially in music or performance.
Example
The jazz trio played beautifully at the concert.
C1 adjective /ˈfruːt.ləs/

Fruitless

Meaning
unsuccessful; futile; pointless;
Example
After hours of searching, their efforts proved fruitless.
C1 noun /ˈprɒvɪdəns/

providence

Meaning
the protective care of God or nature as a spiritual power; foresight or prudence
Example
They believed their survival was due to divine providence.
C2 verb /kənˈtjuːz/

contuse

Meaning
to bruise by striking or hitting
Example
He contused his arm when he fell off the bike.
C2 noun /kəmˈpleɪsəns/

complacence

Meaning
a feeling of quiet pleasure or self-satisfaction, often without awareness of potential danger
Example
His complacence prevented him from noticing the risks.
B2 verb /ʃʌv/

shove

Meaning
to push someone or something roughly
Example
He shoved the box into the corner.
B1 noun /ˈeər fɔːrs/

Air force

Meaning
the military organization of a country that uses aircraft for fighting
Example
The air force conducted a training exercise over the mountains.
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.
C1 adjective /ˌdɪktəˈtɔːriəl/

dictatorial

Meaning
Having or showing a tendency to tell people what to do in an autocratic way.
Example
His dictatorial style made him unpopular among colleagues.
C2 noun (plural) /ˈɔːrdʒiːz/

orgies

Meaning
Wild gatherings involving excessive indulgence in food, drink, or sexual activity.
Example
The ancient Romans were infamous for their lavish feasts and orgies.
C1 adjective ˌæɡrɪˈkʌltʃərəli sɪɡˈnɪfɪkənt

agriculturally significant

Meaning
Important or crucial related to farming and agriculture
Example
Winter is agriculturally significant for crop production.
C1 verb /ˈblækən/

blacken

Meaning
to make something black or darker; to stain, soil, or tarnish
Example
Smoke from the fire began to blacken the walls.
B2 noun /əˈdʒʌstmənt/

adjustment

Meaning
a small change made to improve something or make it work better
Example
The doctor made an adjustment to the patient’s medication.
C1 adjective /kənˈdjuː.sɪv/

conducive

Meaning
Making a certain situation or outcome likely or possible; contributing to or helping to bring about.
Example
A quiet environment is conducive to studying.
C1 noun /ˈnɑː.sɪ.sɪ.zəm/

narcissism

Meaning
Excessive interest in or admiration of oneself; extreme selfishness.
Example
His excessive narcissism made it difficult for him to empathize with others.
B1 noun /sərˈtɪfɪkət/

certificate

Meaning
a document serving as proof of achievement or qualification
Example
She received a certificate for completing the course.
C1 adjective /ˈfɛrəl/

feral

Meaning
existing in a wild or untamed state; not domesticated
Example
The feral cat roamed the streets at night.
C1 adjective /ʌnˈkwaɪ.ət/

Unquiet

Meaning
restless; unable to remain still or quiet; anxious or troubled
Example
She spent an unquiet night worrying about the exam results.