nontrivial
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C2 adjective /ˌnɒnˈtrɪviəl/

nontrivial

Meaning
Not simple or easy; requiring effort or significant thought.
Example
Solving the equation turned out to be a nontrivial task.
C1 noun /rɪˈvʌlʃən/

revulsion

Meaning
a strong feeling of disgust or repulsion
Example
She felt revulsion at the sight of the cruel act.
B2 noun /əˈnætəmi/

anatomy

Meaning
the study of the structure of living things, especially the human body
Example
She is studying human anatomy at medical school.
B1 verb /ˈɪndʒər/

injure

Meaning
to cause physical harm or damage to someone or something
Example
He injured his leg while playing football.
C1 noun /riːk/

Reek

Meaning
to have a very unpleasant smell; to give a strong impression of something unpleasant or undesirable
Example
The garbage can reeks of rotten food.
A2 pronoun /huːˈɛvər/

whoever

Meaning
any person who; no matter who
Example
Whoever wants to join the trip must register today.
C2 adjective /ˈdæpər/

dapper

Meaning
Neat, stylish, and well-dressed in appearance.
Example
He looked very dapper in his new suit.
B2 adjective /ˈɡlɒsi/

glossy

Meaning
Shiny and smooth in appearance; attractive on the surface but sometimes lacking depth.
Example
She bought a glossy magazine from the store.
C2 verb /ˈmɒlɪfaɪ/

mollify

Meaning
To calm or soothe someone's anger or anxiety.
Example
The manager tried to mollify the angry customers with discounts.
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.
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.
C1 adjective /əˈbɪzməl/

abysmal

Meaning
extremely bad or appalling
Example
The team's performance was abysmal.
A2 noun /θɔːts/

thoughts

Meaning
An idea or opinion produced by thinking, or occurring suddenly in the mind.
Example
Focus your thoughts on positive outcomes.
C2 noun /ˈræɡəmʌfɪn/

ragamuffin

Meaning
A person, typically a child, in ragged, dirty clothes.
Example
The little ragamuffin begged for food on the street.
C1 noun /stæɡˈneɪ.ʃən/

stagnation

Meaning
A state of inactivity or lack of growth, especially in an economy.
Example
High unemployment led to economic stagnation.
C1 noun ˌnæʃ.ən.ə.laɪˈzeɪ.ʃən

nationalization

Meaning
The process of a government taking control of private property or industry.
Example
The nationalization of banks was aimed at stabilizing the economy.
C2 noun /ˈɔːtɑːrki/

autarchy

Meaning
A system of self-sufficiency where a state or community is economically independent.
Example
The nation attempted autarchy to reduce reliance on imports.
C2 adjective /ˈfluːtɪd/

fluted

Meaning
having grooves or ridges, often for decoration
Example
The vase had a beautiful fluted design around the rim.
C2 noun /ˌræʃioʊsɪˈneɪʃən/

ratiocination

Meaning
the process of reasoning or logical thinking
Example
His ratiocination impressed the judges during the debate.
C1 adjective ˈtæktɪkəl

tactical

Meaning
Relating to or constituting actions carefully planned to gain a specific military or political end.
Example
Tactical thinking is crucial in business negotiations.
A2 noun ˈliːdər

leader

Meaning
A person who leads or commands a group, organization, or country.
Example
The leader inspired people.
C2 noun /ˌpætrəˈnɪmɪk/

patronymic

Meaning
a name derived from the name of a father or ancestor
Example
In many cultures, surnames are patronymic in origin.
C2 noun /ˈfɪl.ɪ.staɪn/

philistine

Meaning
a person who is indifferent or hostile to culture and the arts
Example
He was criticized as a philistine for dismissing modern art.
C2 adjective /kənˈvɜːrsənt/

conversant

Meaning
familiar with or knowledgeable about something
Example
She is conversant with the latest developments in technology.
C2 verb /ˌsuːpərˈæd/

superadd

Meaning
to add something to what has already been added
Example
The author chose to superadd a new chapter to the revised edition.
B2 adjective /ɪˈrɪˌspɑn.sə.bəl/

Irresponsible

Meaning
lacking a sense of responsibility; careless
Example
It was irresponsible of him to leave without telling anyone.
C1 noun /rɪˈspɒnsɪvnəs/

responsiveness

Meaning
The quality of reacting quickly and positively
Example
The manager appreciated her responsiveness to customer feedback.
B2 adjective /ˈlɪt.ər.ət/

Literate

Meaning
able to read and write; educated; well-educated
Example
She is a very literate person who reads extensively.
C1 adverb /ˈduːli/

Duly

Meaning
in accordance with what is required or appropriate; at the proper time
Example
The documents were duly signed and submitted.
C2 verb /ˌæntɪˈsiːd/

antecede

Meaning
to come before in time or order
Example
A short introduction usually antecedes the main text.
B2 noun /saɪˈkaɪətri/

psychiatry

Meaning
the branch of medicine focused on the study and treatment of mental illness
Example
She decided to study psychiatry to help people with mental health issues.
B2 verb /əkˈnɒlɪdʒ/

acknowledge

Meaning
to accept or admit the existence or truth of something; to recognize
Example
She acknowledged her mistake and apologized.
C2 adjective /ˌmækɪəˈvɛliən/

machiavellian

Meaning
cunning, scheming, and unscrupulous, especially in politics or in advancing one's career
Example
The politician was known for his Machiavellian tactics.
C2 noun /ˈlɪŋ.ɡwə/

lingua

Meaning
A language, especially one used for communication among people.
Example
English has become a global lingua for business and science.
B2 verb, noun /stæb/

stab

Meaning
to pierce or wound with a pointed weapon or object
Example
He was stabbed in the back during the altercation.
C2 noun /pəˈlɛmɪk/

polemic

Meaning
a strong verbal or written attack on someone or something
Example
The article was a fierce polemic against the government's policies.
C2 noun /ˈʌn.dɚˌstɔː.ri/

understory

Meaning
The layer of vegetation beneath the main canopy of a forest.
Example
The understory of a rainforest is home to small mammals and insects.
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.
C2 verb /aʊtˈraɪd/

outride

Meaning
to ride faster, farther, or better than someone else
Example
The young rider managed to outride his competitors in the race.
C2 verb /ˈwiːdəl/

wheedle

Meaning
to persuade or coax someone by using flattery or smooth talk
Example
She managed to wheedle extra pocket money from her father.
C1 noun /diːˈkrɪp.ʃən/

decryption

Meaning
The process of converting encrypted data back into its original form so it can be understood.
Example
Hackers attempted decryption of classified data.
C1 adjective /ˈpen.ɪ.ləs/

Penniless

Meaning
having no money; extremely poor; completely without funds
Example
After losing his job, he became penniless.
C1 verb /ɪˈlɛktrɪfaɪ/

electrify

Meaning
to charge with electricity; to excite or thrill intensely
Example
The speaker's speech electrified the audience.
C2 noun /ˈkælvəri/

calvary

Meaning
A place or experience of intense suffering, originally the site of Jesus’s crucifixion.
Example
For many refugees, the journey across the desert was a calvary.
C1 noun /ˈflɔː.rə/

flora

Meaning
The plant life found in a particular region or habitat.
Example
The Amazon rainforest is home to a vast flora diversity.
B2 adjective /ˈhɒs.taɪl/

Hostile

Meaning
unfriendly; aggressive; antagonistic;
Example
The hostile environment made it difficult to work.
C2 noun /ˈdɒldrəmz/

doldrums

Meaning
A state of inactivity, stagnation, or low spirits; also a region near the equator with calm winds.
Example
After the project failed, the team was stuck in the doldrums for months.
B2 adjective /suːˈpriːm/

Supreme

Meaning
highest in rank, authority, or quality; greatest; most important
Example
The Supreme Court made the final decision.
B2 noun /ˈmɛkəˌnɪzəm/

mechanism

Meaning
A system of parts working together in a machine; a process or technique for achieving something.
Example
The mechanism of the clock stopped working after years of use.
B2 noun (plural) /skræps/

scraps

Meaning
Small pieces left over from something; also small fights or quarrels.
Example
The dog ate the scraps from the table.
B2 adverb /ˈbəʊld.li/

Boldly

Meaning
in a confident and brave way; without fear
Example
She boldly stepped forward to face the challenge.
C2 noun /əˈmæl.ɡəm/

amalgam

Meaning
a mixture or blend of different things
Example
The new policy is an amalgam of several previous laws.
C1 adjective /əˈsɛndənt/

ascendant

Meaning
Rising in power or influence; dominant.
Example
She is an ascendant leader in the political party.
C2 noun /ˈjɪərlɪŋ/

yearling

Meaning
an animal that is one year old, especially a horse
Example
The farmer sold the yearling at the livestock market.
C2 noun /səˈlɛrɪti/

celerity

Meaning
swiftness of movement; speed
Example
The soldier moved with great celerity to deliver the message.
B2 noun, verb /ˈdɪskɔːrs/

discourse

Meaning
Written or spoken communication or debate.
Example
The professor gave a discourse on ancient philosophy.
C2 adjective /ˈtɛnɪbrəs/

tenebrous

Meaning
dark, shadowy, or obscure
Example
The cave was damp and tenebrous, filled with eerie sounds.
C2 adjective /pɒnˈtɪfɪkəl/

pontifical

Meaning
relating to a pope or bishop; pompous or self-important
Example
His pontifical manner annoyed the other members of the committee.
A2 verb /ˌrɛkəˈmɛnd/

recommend

Meaning
to suggest or advise something as being good or suitable
Example
I recommend trying the new restaurant downtown.
B2 noun /tɔːrˈneɪdoʊ/

tornado

Meaning
a rapidly rotating column of air in contact with the ground and clouds, often destructive
Example
The tornado destroyed several houses in the village.
C1 verb /snʌb/

snub

Meaning
to insult or ignore someone by treating them rudely
Example
He felt hurt when his invitation was snubbed.
A2 adjective /ˈfroʊzən/

frozen

Meaning
preserved by being made extremely cold; turned into ice
Example
The lake was completely frozen during winter.
C1 verb /ˌʌndəˈreɪt/

underrate

Meaning
to fail to recognize the full value or importance of something or someone
Example
Many people underrate the benefits of regular exercise.
B2 verb /kəmˈpɛl/

compel

Meaning
To force or drive someone to do something.
Example
The law compels citizens to pay taxes.
C1 noun /pəˈtɜːrnəti/

paternity

Meaning
The state of being someone's father.
Example
He demanded a paternity test to confirm his relationship with the child.
C2 verb, adjective /ˈstraɪeɪt/

striate

Meaning
to mark with stripes or grooves; striped or streaked in appearance
Example
The rock surface was striated by glacial movement.
C2 noun /ˌvæs.ɪˈleɪ.ʃən/

Vacillation

Meaning
the inability to decide between different opinions or actions; indecision
Example
His constant vacillation between career choices frustrated his parents.
C2 adjective /njuːˈtoʊniən/

newtonian

Meaning
relating to the laws of motion and gravitation formulated by Sir Isaac Newton
Example
The scientist explained the Newtonian laws of motion.
B2 adjective ˌsɪm.əlˈteɪ.ni.əs

simultaneous

Meaning
Occurring, operating, or done at the same time.
Example
Simultaneous crop failures affect global food supply.
C2 noun /ˌlɪt.əˈrɑː.ti/

literati

Meaning
well-educated, literary, or scholarly people
Example
The event was attended by poets, critics, and other members of the literati.
C1 adjective /loʊθ/

loath

Meaning
reluctant or unwilling to do something
Example
She was loath to admit her mistake in front of everyone.
B2 noun /æs/

Ass

Meaning
a donkey; a small domesticated animal of the horse family
Example
The farmer used an ass to carry heavy loads.
B2 noun /bædʒ/

badge

Meaning
A small emblem or sign worn to show membership, authority, or achievement.
Example
The police officer showed his badge to identify himself.
C2 adjective /ˈfʌndʒəbl/

fungible

Meaning
interchangeable; able to replace or be replaced by another identical item
Example
In finance, money is considered a fungible asset.
B1 noun /ɡæŋ/

gang

Meaning
An organized group of people, often involved in crime or violence.
Example
The gang was arrested by the police last night.
C1 noun /ˈfɔɪeɪr/

foyer

Meaning
An entrance hall or lobby in a building.
Example
The guests waited in the hotel foyer before checking in.
C1 noun /ˈræftər/

rafter

Meaning
One of the sloping beams that supports a roof.
Example
The old barn’s rafters were exposed.
A2 noun /kənˌɡrætʃ.əˈleɪ.ʃənz/

Congratulations

Meaning
words expressing praise for an achievement or good wishes on a special occasion
Example
Congratulations on your promotion! You really deserved this success.
B2 verb /ɪkˈstrækt/

extract

Meaning
to remove or take out something, often with effort
Example
The dentist had to extract the damaged tooth.
B2 noun /ˈvɜː.tʃuː/

Virtue

Meaning
behavior showing high moral standards; a good or useful quality of a thing
Example
Honesty is considered the highest virtue in many cultures.
C1 adverb /ˈfeɪ.təl.i/

Fatally

Meaning
in a way that causes death; with deadly consequences; critically
Example
The accident fatally injured two passengers.
B1 noun /ˈskwɪr.əl/

Squirrel

Meaning
a small agile tree-dwelling rodent with a long bushy tail
Example
The squirrel gathered nuts for winter.
C1 adjective /ˈsaɪt.ləs/

Sightless

Meaning
unable to see; blind; lacking vision
Example
The sightless man navigated the street with his guide dog.
B2 verb /səbˈskraɪb/

subscribe

Meaning
to pay to receive a service regularly; to agree with or support something
Example
I subscribe to several online magazines.
B1 adjective /ˈtʃɑːr.mɪŋ/

charming

Meaning
Very pleasing or delightful in a way that attracts people.
Example
The village is full of charming little houses.
C1 verb /ˌsuːpərɪmˈpoʊz/

superimpose

Meaning
to place one thing on top of another so that both can be seen
Example
The editor superimposed text over the image.
B2 noun dʒəˈnet.ɪks

genetics

Meaning
The study of heredity and the variation of inherited characteristics.
Example
Genetics plays a pivotal role in healthcare advancements.
C1 adjective ˈæl.ɡə.rɪ.ðəm drɪv.ən

algorithm-driven

Meaning
Controlled or powered by computer algorithms.
Example
Algorithm-driven systems increase accuracy.
C1 adjective /ˈrez.ə.luːt/

Resolute

Meaning
determined; having a firm decision; unwavering
Example
She remained resolute in her decision to pursue her dreams.
C1 verb /sluː/

slew

Meaning
To turn or slide violently in a particular direction.
Example
The car slewed across the icy road.
C1 noun prɪˈdɪk.ə.mənt

predicament

Meaning
A difficult, unpleasant, or embarrassing situation.
Example
Losing both jobs put him in a financial predicament.
C1 verb əˈkruː

accrue

Meaning
To accumulate or receive (payments or benefits) over time.
Example
Interest accrues on the savings account every month.
C2 adjective /ˌɪnkənˈsɪdərəbl/

inconsiderable

Meaning
Too small or unimportant to be worth considering.
Example
The donation was not inconsiderable, though smaller than expected.
A2 noun /pəˈliːsmən/

policeman

Meaning
a man whose job is to enforce the law and keep public order
Example
The policeman directed the traffic at the intersection.
A2 verb /ɪnˈkluːd/

include

Meaning
to have as part of a whole; to contain or comprise
Example
The price includes all taxes.
C2 noun /θroʊz/

throes

Meaning
intense or violent pain and struggle, often at the beginning or end of something
Example
The country was in the throes of a political crisis.
C2 noun /ˈbɪbliəfaɪl/

bibliophile

Meaning
A person who loves or collects books.
Example
She is a true bibliophile who spends weekends at old bookstores.
B2 noun /əkˈnɒlɪdʒmənt/

acknowledgment

Meaning
the act of accepting, admitting, or recognizing something
Example
He received an acknowledgment of his application.
B2 adjective /lɑːrdʒ skeɪl/

large-scale

Meaning
involving a large number or quantity, or covering a large area
Example
The company is planning a large-scale expansion into international markets.
A2 noun /ˈwɛdɪŋ/

wedding

Meaning
a marriage ceremony, especially considered as including the associated celebrations
Example
They are planning a wedding in the summer.
B1 noun /ˈdʒɛntəlmən/

gentleman

Meaning
a man who is polite, courteous, and honorable
Example
He opened the door for her like a true gentleman.
B2 adjective ˌtek.nəˈlɒdʒ.ɪ.kəl

technological

Meaning
Relating to or involving technology, especially scientific technology.
Example
Technological advancements enable futuristic projects.
C1 verb /ˈmɒd.jʊ.leɪt/

modulate

Meaning
To change the strength, tone, or pitch of something; to adjust or regulate.
Example
A good speaker knows how to modulate their voice.
C2 verb /ˈwaŋɡl/

wangle

Meaning
To achieve something by clever or sometimes dishonest persuasion or trickery.
Example
He wangled a free ticket to the concert.
C2 verb /diːˈmoʊbəlaɪz/

demobilize

Meaning
To release from military service or to disband troops.
Example
The government decided to demobilize the army after the war.
B2 adjective /ˈweɪ.kɪŋ/

Waking

Meaning
awake and conscious; relating to the time when one is awake
Example
She spent her waking hours studying for the exam.
B2 noun /ˈweə(r)haʊs/

warehouse

Meaning
a large building where goods are stored before being sold or distributed
Example
The company stores all its products in a big warehouse.
C1 adjective /ˌiːɡoʊˈsentrɪk/

egocentric

Meaning
thinking only about yourself and not about others
Example
His egocentric behavior annoyed everyone at the meeting.
B2 noun ˌlɪmɪˈteɪʃən

limitation

Meaning
A limiting rule or circumstance; a restriction on the size or amount of something permissible.
Example
Limitation in data affects policy-making decisions.
C1 noun /ˈded.lɑk/

Dead-lock

Meaning
a situation in which no progress is possible; complete standstill
Example
The negotiations reached a deadlock when neither side would compromise.
C2 verb /kənˈstrɪndʒ/

constringe

Meaning
to cause to shrink or contract; to constrict
Example
The medicine helped constringe the swollen tissues.
B2 adjective /bɪˈlʌvɪd/

beloved

Meaning
dearly loved, highly regarded
Example
She was the beloved queen of the kingdom.
C1 adjective /ʌnˈkɒm.prə.maɪ.zɪŋ/

Uncompromising

Meaning
unwilling to change one's views or to agree about something; showing an unwillingness to make concessions to others
Example
He was uncompromising in his demand for a full apology.
B2 verb /ˈɪntɪɡreɪt/

integrate

Meaning
To combine or bring together into a unified whole.
Example
The new system integrates data from multiple sources.
B1 noun /ˈsʌb.weɪ/

Subway

Meaning
an underground railway system; an underground passage for pedestrians
Example
I take the subway to work every morning because it's faster than driving.
C1 adjective, verb (past tense/participle of mire) /ˈmaɪərd/

mired

Meaning
Trapped or entangled in something, typically a difficult situation.
Example
The politician was mired in scandal.
A2 adjective /ˈfɔːrən/ or /ˈfɑːrən/

foreign

Meaning
Belonging to or coming from another country.
Example
She loves studying foreign languages.
C1 noun /ˈhɑː.mɪ.saɪd/

Homicide

Meaning
the deliberate and unlawful killing of one person by another; murder
Example
The detective was assigned to investigate the homicide that occurred downtown last night.
B1 noun /ˈpɔɪ.zən/

Poison

Meaning
a substance that is capable of causing death or illness
Example
The snake's bite contains deadly poison.
A1 interjection /baɪ/

bye

Meaning
used to say goodbye; a short and informal farewell
Example
I said bye to her before leaving.
C1 adjective /hɪpˈnɒtɪk/

hypnotic

Meaning
Producing sleep or a trance-like state; mesmerizing.
Example
The music had a hypnotic effect on the audience.