four
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A1 numeral /fɔːr/

four

Meaning
The number equivalent to the sum of two and two; one more than three.
Example
She has four books on her desk.
C1 noun /ˈoʊvərˌtoʊn/

overtone

Meaning
A subtle quality, implication, or additional meaning beyond the obvious.
Example
His speech had political overtones that were hard to ignore.
C2 noun ˈnjʊə.rəʊ ˌfiːd.bæk

neurofeedback

Meaning
A technique that uses real-time displays of brain activity to teach self-regulation of brain function.
Example
Neurofeedback enhances cognitive performance and relaxation.
B2 verb /reɪl/

rail

Meaning
to complain or protest strongly about something
Example
He railed against the unfair decision.
C2 verb /ˌsuːpərˈhiːt/

superheat

Meaning
to heat a substance beyond its normal boiling point without it becoming vapor
Example
Engineers superheat the steam to increase the efficiency of the turbine.
C2 noun /kəˈnɑːrd/

canard

Meaning
a false or unfounded story or rumor
Example
The article turned out to be nothing more than a canard.
B2 adjective /leɪm/

Lame

Meaning
unable to walk normally because of an injury or illness affecting the leg or foot; weak and unconvincing
Example
The injured horse was lame and couldn't walk properly.
B2 adjective /ˌpɑːrləˈmɛntri/

parliamentary

Meaning
relating to a parliament or its members; relating to a system of government with parliamentary authority
Example
The country follows a parliamentary form of government.
B2 verb /ˈhezɪteɪt/

hesitate

Meaning
to pause before acting; to be uncertain about what to do
Example
Don't hesitate to ask for help.
C2 noun /ˈɛkwɪpɪdʒ/

equipage

Meaning
Equipment or a carriage with its accessories.
Example
The nobleman arrived in a grand equipage.
B2 verb /wɛd/

wed

Meaning
to marry someone; to enter into a marriage
Example
They decided to wed in a small ceremony by the beach.
C1 adjective /ˈstoʊɪk/

stoic

Meaning
Showing little or no emotion, even in difficult situations.
Example
She remained stoic during the crisis, never showing fear or panic.
B2 adjective /ˌmʌl.tiˈpɜː.pəs/

Multipurpose

Meaning
having multiple uses or functions; versatile
Example
This multipurpose tool can be used as a knife, screwdriver, and bottle opener.
A2 adjective /diːp/

deep

Meaning
extending far down from the top or surface; profound or intense
Example
The lake is very deep in the middle.
C2 adjective /ˈhaɪˌbraʊ/

highbrow

Meaning
intellectually superior or cultured; often describing art, literature, or activities appealing to intellectual tastes
Example
The museum is known for its highbrow exhibitions.
A1 noun /pɪɡ/

Pig

Meaning
a domestic farm animal with a short curly tail and a flat nose
Example
The farmer fed the pig in the pen.
C2 noun /ˈriːdʒənt/

regent

Meaning
a person who rules in place of a monarch when the monarch is absent or too young
Example
The prince acted as regent until the king came of age.
C1 verb /ɪnˈvoʊk/

invoke

Meaning
to call upon a higher power, authority, or principle for help, support, or justification
Example
The lawyer invoked the constitution to defend his client.
C2 verb /kəˈlʌmnieɪt/

calumniate

Meaning
To make false and damaging statements about someone; to slander.
Example
He was furious when he realized they had calumniated his reputation.
B2 noun əˈmend.mənts

amendments

Meaning
Changes or additions made to improve a text, law, or constitution.
Example
Amendments reflect evolving public needs.
C2 adjective /ˈwɪnsəm/

winsome

Meaning
pleasant and attractive in a fresh, innocent, or charming way
Example
Her winsome smile instantly put the nervous guests at ease.
B1 adjective /ˈwaɪə.ləs/

Wireless

Meaning
operating without wires; using radio waves for communication
Example
My wireless headphones provide excellent sound quality without any cables.
B2 noun /ˈpen neɪm/

Pen-name

Meaning
a fictitious name used by an author instead of their real name; a pseudonym
Example
Mark Twain was the pen-name of Samuel Clemens.
C1 verb ˈrɛk.tɪ.faɪ

rectify

Meaning
To correct mistakes or make something right.
Example
The company took steps to rectify its financial mistakes.
C2 verb /əˈbeɪs/

abase

Meaning
to belittle or degrade someone
Example
He refused to abase himself before the king.
B2 adjective /ˈkɒn.trər.i/

Contrary

Meaning
opposite in nature, direction, or meaning; completely different
Example
Contrary to popular belief, cats can be very social animals.
B2 noun /ˈsuːpəvaɪzə(r)/

supervisor

Meaning
a person who manages or directs the work of others
Example
The supervisor checked the progress of each employee.
C2 adjective /ˌɛvɪˈdɛnʃəl/

evidential

Meaning
relating to or providing evidence
Example
The lawyer presented evidential support for her claims.
B2 verb /rɪˈkɔːl/

recall

Meaning
to bring (a memory, fact, or situation) back into one's mind
Example
I can't recall the last time we met.
C1 adjective /ˈmuː.və.bl̩/

Movable

Meaning
capable of being moved; not fixed in position
Example
The furniture is movable so we can rearrange the room easily.
C1 noun ˌvɒl.əˈtɪl.ɪ.ti

volatility

Meaning
Liability to change rapidly and unpredictably, especially for the worse; instability.
Example
The stock market's volatility makes investment risky.
C1 adjective /ˈnɑːkʃəs/

noxious

Meaning
harmful, poisonous, or very unpleasant
Example
The factory released noxious fumes into the air.
C1 noun /ˈdæmpər/

damper

Meaning
something that reduces or lessens the force, effect, or excitement
Example
The cancellation of the trip put a damper on their enthusiasm.
B1 noun ˈbreɪvəri

bravery

Meaning
Courageous behavior or character; the quality of being brave.
Example
The bravery of our soldiers is unforgettable.
B2 noun /ˈkænən/

Cannon

Meaning
large heavy gun that fires cannonballs or shells
Example
The castle was defended by several large cannons.
B2 noun /koʊl/

coal

Meaning
a black or dark brown rock used as fuel, formed from decomposed plant matter
Example
The factory still uses coal as its main source of energy.
B1 adverb /əˈlaʊd/

Aloud

Meaning
in a voice that can be heard; not silently
Example
Please read the instructions aloud so everyone can hear.
C1 noun /ˌɑːrtʃˈbɪʃəp/

archbishop

Meaning
A senior bishop in charge of an archdiocese in the Christian Church.
Example
The archbishop delivered a sermon to thousands of people.
C2 verb /bɪˈnʌm/

benumb

Meaning
to make physically numb or without sensation; to make mentally dull or insensitive
Example
The freezing wind seemed to benumb his fingers within minutes.
C1 noun /ˈdɛljuːdʒ/

deluge

Meaning
A severe flood; an overwhelming quantity of something.
Example
The town was hit by a deluge of rain in just a few hours.
B2 verb /ˈwaɪdən/

widen

Meaning
to make or become wider or broader
Example
They plan to widen the road next year.
C1 verb /ˈrʌm.ɪdʒ/

rummage

Meaning
to search through something in a disorderly way
Example
He rummaged through the drawer for his keys.
C1 verb /ˈbɒɡəl/

boggle

Meaning
to overwhelm or confuse; to be astonished or puzzled by something
Example
The complexity of the puzzle boggled his mind.
B1 adjective /ˈɔːkwəd/

awkward

Meaning
causing or feeling embarrassment; difficult to deal with
Example
There was an awkward silence after his joke.
C1 noun /dɪˈfaɪəns/

defiance

Meaning
Open resistance or bold disobedience.
Example
The protest was an act of defiance against injustice.
C1 verb /ˈkwentʃɪŋ/

quenching

Meaning
The act of satisfying thirst or extinguishing something like fire.
Example
Drinking cold water was quenching her thirst.
B2 adjective /ˈspiːtʃləs/

speechless

Meaning
Unable to speak because of shock, surprise, or strong emotion.
Example
She was speechless when she received the award.
B1 verb /kleɪm/

claim

Meaning
to assert ownership; to state as fact
Example
He claims to be the rightful owner.
B2 noun /ˈtwaɪ.laɪt/

Twilight

Meaning
the soft glowing light from the sky when the sun is below the horizon; a period of decline
Example
We walked along the beach at twilight.
B1 noun /ˈɔːfɪsər/

officer

Meaning
a person in a position of authority, especially in law enforcement
Example
The officer gave him a ticket for speeding.
C2 noun /ˈfriːˌmeɪsən/

freemason

Meaning
A member of an international fraternity known as Freemasonry, focused on moral and spiritual values.
Example
His grandfather was a respected freemason in the community.
B2 adjective /prəˈdʌk.tɪv/

Productive

Meaning
efficient; yielding good results; fruitful
Example
Working from home has made me more productive than ever before.
A2 noun /rɪˈzʌlt/

result

Meaning
a consequence, effect, or outcome of something
Example
The result of the test was excellent.
C2 noun /rɪˈkwaɪtəl/

requital

Meaning
The act of returning something, such as a favor, service, or punishment; repayment or retaliation.
Example
She offered her time in requital for his kindness.
A2 noun /ˈsɒkər/

soccer

Meaning
a sport in which two teams of eleven players each try to score goals by kicking a ball into the opposing goal
Example
He loves to play soccer with his friends.
B2 adjective /ˈrek.ləs/

Reckless

Meaning
acting without thinking about consequences; careless; dangerous;
Example
His reckless driving caused a serious accident.
C1 adjective + noun ˈfeɪvərəbəl klaɪˈmætɪk kənˈdɪʃənz

favorable climatic conditions

Meaning
Weather conditions that are suitable and beneficial for growth or development
Example
Winter offers favorable climatic conditions for farming.
C2 verb /dɪsˈtɛnd/

distend

Meaning
to swell or expand by pressure from within
Example
Her stomach began to distend after the large meal.
C2 noun /ˈændaɪərn/

andiron

Meaning
a metal support used in a fireplace to hold logs
Example
The logs rested on the andirons in the old fireplace.
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.
C2 verb /ɪkˈspɛktəreɪt/

expectorate

Meaning
to cough up and spit out mucus from the throat or lungs
Example
The patient began to expectorate thick mucus.
C2 adjective /ˈprʊəriənt/

prurient

Meaning
having or showing an excessive interest in sexual matters
Example
The magazine was criticized for its prurient content.
B2 adjective /ˈbʌmpi/

Bumpy

Meaning
having an uneven surface; rough; jolting
Example
The bumpy road made the car ride very uncomfortable.
C1 noun /ˈlɪmboʊ/

limbo

Meaning
A state of uncertainty or neglect; an intermediate or transitional state.
Example
The project was left in limbo after the funding was withdrawn.
C2 noun /dɛnˈdrɒlədʒi/

dendrology

Meaning
the scientific study of trees and woody plants
Example
He is studying dendrology at the university.
C2 noun /ˈvɪzɪdʒ/

visage

Meaning
A person's face or facial expression.
Example
Her stern visage intimidated the children.
C2 noun /ˈdeb.juː.tɑːnt/

debutante

Meaning
A young woman making her first formal appearance in society.
Example
The debutante wore a white gown at the ball.
A2 noun /ˈpɜːpəs/

purpose

Meaning
the reason for which something is done or created
Example
The purpose of this meeting is to discuss the new project.
C1 verb /kənˈtraɪv/

contrive

Meaning
to plan or devise cleverly or skillfully
Example
She contrived a clever plan to surprise her friends.
C1 verb /ˈræʃənəlaɪz/

rationalize

Meaning
to attempt to explain or justify behavior or decisions with logical reasons, even if they are not true or appropriate
Example
She tried to rationalize her lateness by blaming the traffic.
C1 noun /noʊm/

gnome

Meaning
a small mythical creature, often depicted as a bearded man living underground; also a figurine used in gardens
Example
The garden was decorated with a gnome statue.
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 noun /ˌrɛpəˈreɪʃən/

reparation

Meaning
the making of amends for a wrong done by paying money or helping those who were wronged
Example
The government offered reparations to the victims of the conflict.
C1 noun ˌdɪs.ɪnˈfek.ʃən

disinfection

Meaning
The process of destroying harmful microorganisms to prevent infection.
Example
Kitchen appliances require frequent disinfection.
B2 noun /ˈvæn.ɪ.ti/

Vanity

Meaning
excessive pride in one's appearance or achievements; the quality of being worthless or pointless
Example
Her vanity made her spend hours looking at herself in the mirror.
C2 verb, noun /blæb/

blab

Meaning
to talk too much or reveal secrets carelessly; excessive or foolish talk
Example
He accidentally blabbed the surprise to everyone.
B2 adjective /ˈɔː.də.li/

Orderly

Meaning
well-organized; systematic; peaceful
Example
Please keep your desk orderly and clean.
B2 adjective ˈkʌtɪŋ ˌɛdʒ

cutting-edge

Meaning
The most advanced or innovative; at the forefront of development.
Example
This company develops cutting-edge technology.
C2 adjective ɪnˈfiː.zə.bəl

infeasible

Meaning
Not possible to do easily or conveniently; impracticable.
Example
Restoring the forest may become infeasible if destruction continues.
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.
C1 noun /krəˈnɒlədʒi/

chronology

Meaning
The arrangement of events or dates in the order of their occurrence.
Example
The chronology of the dynasty was carefully studied by historians.
B2 adjective /ˈnoʊ.bəl/

Noble

Meaning
having high moral qualities; honorable; generous; of aristocratic birth
Example
His noble actions helped many people in need.
B1 noun /ˈfaɪ.tər/

Fighter

Meaning
a military aircraft designed for attacking other aircraft; a person who fights
Example
The fighter jet flew overhead during the military parade.
C2 noun /ˈɡræn.juːl/

granule

Meaning
A small compact particle of a substance.
Example
Each granule of salt sparkled under the sunlight.
B2 adjective /ˈlaɪ.ə.bəl/

Liable

Meaning
legally responsible; accountable; obligated
Example
The company is liable for any damages caused by their defective products.
C2 adjective /əˈfɪʃəs/

officious

Meaning
Excessively eager to offer unwanted help or advice; meddlesome.
Example
The officious guard kept interrupting the visitors with unnecessary instructions.
C1 verb /əbˈzɒlv/

absolve

Meaning
to free someone from blame, guilt, or responsibility; to pardon
Example
The priest absolved him of his sins.
C2 adjective /ˈsɪŋkəˌpeɪtɪd/

syncopated

Meaning
Characterized by displaced beats or rhythms, especially in music.
Example
The jazz piece had a syncopated rhythm that energized the crowd.
C2 noun /ˌɪnkænˈteɪʃən/

incantation

Meaning
a series of words used as a magic spell or charm
Example
The wizard chanted an incantation to summon the spirits.
C1 adjective /bəˈzɜːrk/

berserk

Meaning
Out of control with anger or excitement; wild or frenzied.
Example
The fans went berserk when their team won the championship.
B2 noun (plural) /ˈtæk.tɪks/

tactics

Meaning
specific methods or actions used to achieve a goal, especially in military or competition
Example
The team changed their tactics to win the game.
C1 noun /pəˈrɪfəri/

periphery

Meaning
The outer edge or boundary of an area or object.
Example
The soldiers were stationed at the periphery of the camp.
B2 adjective /ˈkjuːbən/

cuban

Meaning
relating to Cuba, its people, or its culture
Example
We enjoyed delicious Cuban coffee at the café.
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 adjective /ˈvɪndɪkeɪtɪv/

vindicative

Meaning
showing a tendency to vindicate or justify; inclined to defend
Example
Her vindicative tone showed that she strongly believed in her innocence.
C1 noun /ɛnˈdɔːr.fɪnz/

endorphins

Meaning
Chemical compounds produced by the brain that reduce pain and create feelings of happiness.
Example
Exercise releases endorphins, reducing stress and pain.
C2 verb /kɔːk/

calk

Meaning
To make a boat or ship watertight by filling seams or cracks.
Example
The workers calked the seams of the old boat to prevent leaks.
C1 adjective /ɪnˈfæləbl̩/

infallible

Meaning
incapable of making mistakes or being wrong
Example
Her judgment seemed infallible in matters of finance.
C1 noun /kʌˈstoʊ.di.ən/

Custodian

Meaning
a person who has responsibility for or looks after something; a caretaker or guardian
Example
The school custodian ensures that all buildings are clean and secure.
C1 noun /ˈtres.pæs.ər/

Trespasser

Meaning
a person who enters someone's property without permission
Example
The security guard caught the trespasser climbing over the fence.
B2 noun /vɜːrdʒ/

Verge

Meaning
the edge or border of something; very close to happening
Example
She was on the verge of tears.
C2 adjective /ˌnɒnpəˈreɪl/

nonpareil

Meaning
Having no equal; unrivaled or matchless.
Example
Her beauty was considered nonpareil in the region.
C1 adjective /ɪˈvɒkətɪv/

evocative

Meaning
bringing strong images, memories, or feelings to mind
Example
The music was evocative of her childhood memories.
C2 noun /prəˈlɪksɪti/

prolixity

Meaning
the quality of being tediously wordy and long
Example
The book’s prolixity made it difficult to read in one sitting.
C1 adjective /dɪˈsperɪŋ/

Despairing

Meaning
feeling hopeless; in despair
Example
She felt despairing after losing her job.
B2 noun /ˈbɒt.əl.nek/

bottleneck

Meaning
Narrow path or obstruction, a place or situation where flow becomes slow.
Example
The narrow bridge is a major bottleneck during rush hour.
B2 noun /ˈboʊld.nəs/

Boldness

Meaning
willingness to take risks; confidence and courage in behavior
Example
Her boldness in confronting the problem impressed everyone.
A1 noun /ˈtɛnɪs/

tennis

Meaning
a sport played with rackets and a ball on a rectangular court
Example
He enjoys playing tennis with his friends on the weekends.
C2 noun /ˈɛəri/

aerie

Meaning
A large nest of a bird of prey, especially an eagle, typically built high in a tree or on a cliff.
Example
The eagle built its aerie on the high cliff.
C2 noun /ˈleɪ.ɪ.ti/

laity

Meaning
Ordinary members of a religious community who are not clergy.
Example
The church welcomed the laity to participate in the event.
A2 adjective /ˈbrɪtɪʃ/

british

Meaning
relating to Great Britain or its people
Example
She loves British culture and traditions.
A2 adjective /ˈstuː.pɪd/

Stupid

Meaning
lacking intelligence or common sense; foolish
Example
It was stupid of me to forget my umbrella on a rainy day.
B2 noun /ˈmʌs.tərd/

Mustard

Meaning
A pungent seed or condiment made from ground mustard seeds
Example
She added mustard seeds to the curry for extra flavor.
C2 noun /ˈʃɛvrən/

chevron

Meaning
A V-shaped pattern, often used in military insignia or design.
Example
The sergeant’s uniform displayed three chevrons on the sleeve.
C1 verb /taʊt/

tout

Meaning
to promote, praise, or advertise aggressively
Example
The company touted its new product as a game-changer.
A2 noun /peɪn/

Pain

Meaning
physical suffering or discomfort; mental or emotional distress
Example
The patient felt severe pain in his back.
C2 verb /ænˈtɪpəθaɪz/

antipathize

Meaning
to feel or express a strong dislike or aversion toward something or someone
Example
He seemed to antipathize with the new management's approach.
B2 noun /ˈklɒzɪt/

closet

Meaning
a small room or enclosed space used for storing clothes or other things
Example
She keeps her winter coats in the closet near the door.
C2 adjective /əbˈstrɛpərəs/

obstreperous

Meaning
Noisy and difficult to control.
Example
The obstreperous students disrupted the class.
C1 noun ˌlɪt.ɪˈɡeɪ.ʃən

litigation

Meaning
The process of taking legal action; a lawsuit.
Example
The litigation accused the regime of human rights abuses.
A2 determiner/adjective /ˈfjuːər/

fewer

Meaning
a smaller number of; not as many
Example
Fewer people attended the meeting than expected.