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C1 verb /ˈrɪvɪt/

rivet

Meaning
to fasten or secure with a rivet; to hold someone’s attention firmly
Example
The craftsman riveted the metal plates together.
C1 verb /smɛlt/

smelt

Meaning
to extract metal from its ore by heating and melting
Example
The workers smelt iron from its ore in the factory.
C1 verb /luːt/

loot

Meaning
to steal goods, typically during war, riot, or chaos
Example
The rioters looted several shops during the protest.
C1 noun ˈsʌs.tɪ.nəns

Sustenance

Meaning
Food or support necessary for sustaining life
Example
Water is essential for human sustenance.
C1 noun /ˈmælədi/

Malady

Meaning
A disease or ailment; a serious problem
Example
The doctor diagnosed a rare malady that affected her nervous system.
C1 adjective/verb /ˈkɒn.sə.mət/

consummate

Meaning
To complete or perfect something with great skill
Example
He is a consummate artist with years of experience.
C1 adjective /ˌmet.əˈbɒl.ɪk/

metabolic

Meaning
Relating to the chemical processes that occur within a living organism in order to maintain life.
Example
Regular exercise enhances metabolic efficiency.
C1 noun /ˌiː.kwɪˈlɪb.ri.əm/

equilibrium

Meaning
A state of physical balance or stability in physical, mental, or economic conditions.
Example
The market reached an equilibrium between supply and demand.
C1 noun /əbˈzɜːvəns/

observance

Meaning
The practice of following a custom, rule, or religious law.
Example
The festival is held in observance of a centuries-old tradition.
C1 verb /kəmˈpjuːt/

compute

Meaning
To calculate or determine by using a computer or mathematical methods.
Example
The software can compute the total cost in seconds.
C1 noun /ˈdjuːplɛks/

duplex

Meaning
A house or apartment divided into two separate residences.
Example
They live in a duplex near the city center.
C1 noun /ˈmɒnəʊˌkʌltʃər/

monoculture

Meaning
The agricultural practice of growing only one type of crop over a large area and for many consecutive years, which can lead to increased vulnerability to pests and diseases.
Example
Monoculture can lead to soil depletion and increased pest vulnerability.
C1 adjective /ˌdɪfəˈrɛnʃəl/

differential

Meaning
Relating to or showing a difference; involving a distinction.
Example
There is a differential treatment between the two groups.
C1 verb /mɔːl/

maul

Meaning
To wound or injure someone by scratching or tearing; to handle roughly.
Example
The bear mauled the camper in the forest.
C1 adjective /ˈsleɪ.vɪʃ/

slavish

Meaning
showing no originality; completely imitative or overly submissive
Example
His slavish devotion to tradition prevented any innovation.
C1 noun ɪˌræʃ.ənˈæl.ɪ.ti

irrationality

Meaning
The quality of being illogical or unreasonable; lack of rational thought.
Example
His decision was driven by complete irrationality.
C1 phrase ˌhjuː.məˈnɪt.ər.i.kəˈtæs.trə.fi

humanitarian catastrophe

Meaning
A widespread disaster affecting human life, health, and well-being on a large scale.
Example
The war created a humanitarian catastrophe.
C1 adjective /ʌnˈkwes.tʃən.ə.bl̩/

Unquestionable

Meaning
not able to be disputed or doubted; certain and beyond doubt
Example
Her honesty and integrity are unquestionable qualities.
C1 noun /ˌdɜːrməˈtɑːlədʒi/

dermatology

Meaning
The branch of medicine concerned with the skin and its diseases.
Example
He studied dermatology at medical school.
C1 adjective /ˌɪnˌkɒnsɪˈkwɛnʃəl/

inconsequential

Meaning
Not important or significant; too small to matter.
Example
The mistake was minor and inconsequential.
C1 adjective ˈzɛləs

zealous

Meaning
Having or showing great energy or enthusiasm in pursuit of a cause or objective; fervent.
Example
The zealous volunteers worked tirelessly for the cause.
C1 verb /ˈmjuːteɪt/

mutate

Meaning
To change or cause to change in form, nature, or character.
Example
The virus can mutate into a more dangerous strain.
C1 verb /ˌʌndərˈsteɪt/

understate

Meaning
To describe something as being less important or serious than it really is.
Example
He tends to understate his achievements.
C1 noun /ˌprɒvəˈkeɪʃən/

provocation

Meaning
An action or statement that is intended to make someone angry or to cause a reaction.
Example
His rude comment was a clear provocation.
C1 noun /ɪnˈtɛstɪn/

intestine

Meaning
The part of the digestive system where food is digested and absorbed, extending from the stomach to the anus.
Example
The doctor explained how nutrients are absorbed in the small intestine.
C1 noun /ˈmɪmɪkri/

mimicry

Meaning
The act of imitating someone or something, often for humor or learning.
Example
The comedian’s mimicry of celebrities made the audience laugh.
C1 adjective /ˌkætəˈɡɒrɪkəl/

categorical

Meaning
Absolute and without exception; expressed clearly and directly.
Example
She gave a categorical denial of the allegations.
C1 verb /ˌkaʊntərˈækt/

counteract

Meaning
to act against something in order to reduce its effect
Example
The medicine helps counteract the side effects of the treatment.
C1 noun /ˈrɪpəl/

Ripple

Meaning
a small wave on the surface of water; a spreading effect or influence
Example
The stone created ripples across the calm pond.
C1 noun /ˈdʒɪŋ.ɡəl/

Jingle

Meaning
a light ringing sound such as that made by metal objects being shaken together; a short catchy song
Example
The jingle of keys could be heard as she walked down the hallway.
C1 noun /səˈlaɪ.və/

Saliva

Meaning
the watery liquid secreted into the mouth by glands
Example
The dentist asked her to rinse the saliva from her mouth.
C1 adjective ɪkˈskwɪzɪt

exquisite

Meaning
Extremely beautiful and delicate.
Example
The exquisite craftsmanship of the watch made it a collector's item.
C1 noun /æmˈniːʒə/

amnesia

Meaning
A partial or total loss of memory, usually caused by injury, illness, or psychological trauma.
Example
After the accident, she suffered from amnesia and could not remember her own name.
C1 noun /ˈdʒɛpərdi/

jeopardy

Meaning
Danger of loss, harm, or failure.
Example
His careless driving put everyone in jeopardy.
C1 noun /əˈfen.dər/

Offender

Meaning
a person who commits an illegal act; someone who breaks the law
Example
The young offender was sentenced to community service.
C1 noun /ˈkliː.vər/

Cleaver

Meaning
a heavy knife with a broad blade used for chopping meat or vegetables
Example
The chef used a cleaver to chop the chicken bones.
C1 noun ˌhaɪ.pɚˈten.ʃən

hypertension

Meaning
Abnormally high blood pressure.
Example
High sodium intake leads to hypertension.
C1 verb /sərˈmaɪz/

surmise

Meaning
to suppose something is true without having evidence
Example
She surmised that he was not coming to the meeting.
C1 verb /dɪsˈpleɪs/

displace

Meaning
to force someone or something out of their usual or original position; to replace or substitute
Example
The new technology will displace many traditional manufacturing jobs.
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.
C1 adjective /ˌʌndərˈhændɪd/

underhanded

Meaning
acting or done in a dishonest or secret way
Example
They exposed the company's underhanded dealings with its suppliers.
C1 noun /ˈpɑːrtʃmənt/

parchment

Meaning
a thin material made from animal skin, used in the past for writing
Example
The ancient manuscript was written on parchment.
C1 adjective /præɡˈmæt.ɪk/

pragmatic

Meaning
Dealing with things sensibly and realistically in a way that is based on practical rather than idealistic considerations.
Example
He took a pragmatic approach to solving the financial crisis.
C1 noun /ˈzoʊdiæk/

Zodiac

Meaning
a belt of the heavens within which lie the paths of the sun, moon, and planets; the twelve astrological signs
Example
What is your zodiac sign?
C1 adjective /ˌbaɪˈlæt.ər.əl/

bilateral

Meaning
An agreement or relationship between two parties that is mutual, two-sided, or reciprocal.
Example
The two countries signed a bilateral trade agreement.
C1 noun /ˌpɜːrspəˈreɪʃn/

perspiration

Meaning
The process of sweating.
Example
Heavy exercise causes perspiration.
C1 verb /ˈsaɪdˌtræk/

sidetrack

Meaning
To distract from the main subject or activity.
Example
She was sidetracked by an unexpected phone call.
C1 noun /ɔːˈdæs.ə.ti/

audacity

Meaning
The willingness to take bold risks; boldness or fearlessness.
Example
His audacity to question authority was admirable.
C1 adjective /rɪˈpʌl.sɪv/

Repulsive

Meaning
extremely unpleasant; causing strong dislike or disgust
Example
The smell of rotten eggs was absolutely repulsive.
C1 verb /dɪˈflɛkt/

deflect

Meaning
to cause something to change direction; to avoid answering directly
Example
The shield deflected the incoming arrow.
C1 adverb /ˈɡeɪ.li/

Gaily

Meaning
in a cheerful and lively manner
Example
The children danced gaily at the festival.
C1 noun /ˈɪn.fən.tri/

Infantry

Meaning
soldiers marching or fighting on foot; foot soldiers collectively
Example
The infantry advanced across the battlefield on foot.
C1 verb /ˈkænvəs/

canvass

Meaning
to solicit votes or opinions; to examine thoroughly; to discuss in detail
Example
They will canvass the neighborhood for votes.
C1 adjective /rɪˈvoʊltɪŋ/

revolting

Meaning
extremely unpleasant or disgusting
Example
The smell of the garbage was revolting.
C1 adverb /ˈpiːs.miːl/

Piecemeal

Meaning
done or made gradually, one piece at a time; fragmentary; unsystematic
Example
The renovation was done piecemeal over several years due to budget constraints.
C1 adjective /əˈlʊr.ɪŋ/

Alluring

Meaning
attractive and tempting; fascinating
Example
The alluring fragrance of roses filled the garden.
C1 noun /fruˈɪʃən/

fruition

Meaning
The realization or fulfillment of a plan, project, or desire.
Example
Her dream of becoming a doctor finally came to fruition.
C1 noun /ˌvɜːrtʃuˈoʊsoʊ/

virtuoso

Meaning
A person highly skilled in music, art, or another artistic pursuit.
Example
The pianist is a true virtuoso, captivating audiences worldwide.
C1 noun /ˈhɛrətɪk/

heretic

Meaning
a person who holds beliefs that go against established religious teachings or accepted beliefs.
Example
The church declared him a heretic for his radical ideas.
C1 noun /ˈmuːdi.nəs/

moodiness

Meaning
The state of being frequently subject to changes in mood, especially irritability or sadness.
Example
Her moodiness made it difficult to predict how she would react.
C1 verb /dɪˈfɔːrm/

deform

Meaning
to change the shape or form of something, especially in a way that makes it ugly or damaged; to distort
Example
The intense heat began to deform the plastic container.
C1 noun /mɪˈsɑːdʒəni/

misogyny

Meaning
Hatred of, contempt for, or prejudice against women.
Example
The novel has been criticized for promoting misogyny.
C1 noun /ˈmɒnəlɪθ/

monolith

Meaning
A large single upright block of stone, or a large, powerful, indivisible organization or system.
Example
The ancient monolith stood in the desert for centuries.
C1 noun /wɪsp/

wisp

Meaning
A small thin or twisted bunch, piece, or amount of something.
Example
A wisp of smoke rose from the chimney.
C1 noun /spɛk/

speck

Meaning
A very small spot, mark, or particle.
Example
There was a tiny speck of dust on the glass table.
C1 noun /ˌkɒn.əˈsɜːr/

connoisseur

Meaning
an expert judge in matters of taste, especially in food, art, or wine
Example
She is a true connoisseur of fine art.
C1 noun /ɪˈrɛlɪvənsi/

irrelevancy

Meaning
the state of being unrelated or unimportant to the matter at hand
Example
The judge dismissed the argument because of its irrelevancy to the case.
C1 adjective /səbˈvɜːrsɪv/

subversive

Meaning
seeking or intended to undermine or overthrow an established system or authority
Example
The group was banned for its subversive activities.
C1 adverb /ˌmæθəˈmætɪkli/

mathematically

Meaning
in a way that relates to mathematics; using numbers, formulas, or logical calculation
Example
The problem can be solved mathematically rather than by guesswork.
C1 adjective /ˈdɒɡɪd/

dogged

Meaning
showing stubborn determination and persistence
Example
She succeeded through dogged determination.
C1 noun /ˈɒfʃuːt/

offshoot

Meaning
A branch or result that develops from something larger or more important.
Example
The startup was an offshoot of a major tech company.
C1 noun /ˈdɛsɪˌbɛl/

decibel

Meaning
a unit used to measure the intensity of sound
Example
The noise level in the factory exceeded 90 decibels.
C1 noun ˈɡræn.dʒər

Grandeur

Meaning
Magnificence, majesty, splendor; impressive beauty and scale.
Example
The grandeur of the Colosseum attracts millions of visitors.
C1 noun /prɪˈrɒɡətɪv/

prerogative

Meaning
a special right or privilege exclusive to a particular person or group
Example
It is the manager’s prerogative to make the final decision.
C1 noun /kæsˈkeɪd/

Cascade

Meaning
a waterfall; a succession of stages or operations
Example
The mountain cascade created a beautiful natural swimming pool below.
C1 noun ˌsʌb.sɪ.dɪˈzeɪ.ʃən

subsidization

Meaning
Financial assistance provided by government to make certain goods or services more affordable.
Example
Subsidization of agriculture helps farmers maintain crop production.
C1 noun /mɑːrˈsuːpiəl/

marsupial

Meaning
A type of mammal that carries and nourishes its young in a pouch, like kangaroos and koalas.
Example
The kangaroo is a well-known marsupial.
C1 verb /ˌoʊvərˈʃædoʊ/

overshadow

Meaning
to appear more important or significant than something else, reducing its impact
Example
The scandal overshadowed his achievements.
C1 verb /prɪˈdɒmɪneɪt/

predominate

Meaning
To be the strongest, most common, or most influential element.
Example
Traditional values still predominate in the community.
C1 noun /ˈriːpər/

reaper

Meaning
a person or machine that cuts and gathers crops
Example
The reaper moved slowly through the golden fields.
C1 verb /əˈluːd/

allude

Meaning
To refer to something indirectly or casually.
Example
The professor alluded to Shakespeare during the lecture.
C1 noun /ˈbed sted/

Bed stead

Meaning
the framework of a bed; a bed frame without bedding
Example
The wooden bed stead was very sturdy.
C1 noun /ˌpɪɡ.menˈteɪ.ʃən/

pigmentation

Meaning
The natural coloring of animal or plant tissue.
Example
Excessive rubbing can cause pigmentation issues.
C1 adjective /ˈkʌlpəbl̩/

culpable

Meaning
deserving blame or responsibility for a wrongdoing
Example
The judge found him culpable for the accident.
C1 adjective /ˈdʒeɪ.dɪd/

jaded

Meaning
Tired, bored, or lacking enthusiasm, typically after having had too much of something.
Example
After years of traveling, she felt jaded by the constant movement.
C1 noun /ˌɪmɔːrˈtæləti/

immortality

Meaning
the state of living forever; eternal life or lasting fame beyond death
Example
Many ancient cultures believed that heroes could achieve immortality through great deeds.
C1 noun /ɪˈnæməl/

enamel

Meaning
a hard, glossy substance used as a protective or decorative coating; the hard outer layer of teeth
Example
The dentist explained that enamel protects the teeth from decay.
C1 adjective /sɪˈmɛtrɪkəl/

symmetrical

Meaning
having parts on either side that match or are the same in shape, size, or arrangement
Example
The artist designed a symmetrical pattern on the floor.
C1 adjective /ˈsʌn.dri/

sundry

Meaning
Various or miscellaneous.
Example
The shop sells fruits, clothes, and sundry items.
C1 adverb /əˈkjuːtli/

acutely

Meaning
in a sharp, intense, or severe way; with keen awareness
Example
She was acutely aware of the risks involved.
C1 verb /ˌoʊvərˈriːtʃ/

overreach

Meaning
to go beyond what is proper, acceptable, or achievable; to overextend
Example
The politician overreached by making promises he couldn't keep.
C1 noun /ræmˈbuːtən/

Rambutan

Meaning
a tropical fruit with red spiky skin and white translucent sweet flesh similar to litchi
Example
The rambutan looks scary with its hairy skin but tastes very sweet inside.
C1 verb /ˈfæbrɪkeɪt/

fabricate

Meaning
to invent or concoct something, often with the intent to deceive; or to construct or manufacture
Example
The witness fabricated his testimony to protect himself.
C1 noun /ˈmɔːr.nər/

Mourner

Meaning
a person who attends a funeral or shows grief for someone who has died
Example
The mourners gathered at the cemetery to pay their respects.
C1 noun /daɪˈvɜː.dʒəns/

divergence

Meaning
The process or state of diverging; a difference or deviation between two or more things.
Example
The divergence in their opinions led to a heated debate.
C1 noun, adjective /dɪˈfiːtɪst/

defeatist

Meaning
A person who expects or is excessively ready to accept failure; showing a tendency to expect defeat.
Example
His defeatist attitude discouraged the rest of the team.
C1 noun /ɪɡˈzuːbərəns/

exuberance

Meaning
the quality of being full of energy, excitement, and cheerfulness
Example
Her exuberance made the whole team feel motivated.
C1 noun /səˈsteɪnəbl ˈæɡrɪkʌltʃər/

sustainable agriculture

Meaning
Farming practices that meet current food needs while preserving environmental resources and maintaining the ability to produce food for future generations through ecologically sound methods.
Example
Sustainable agriculture practices protect the environment while ensuring food security.
C1 verb /rɪˈprɛs/

repress

Meaning
To restrain, suppress, or keep under control, especially emotions or desires.
Example
He tried to repress his anger during the meeting.
C1 verb /ˈæmbʊʃ/

ambush

Meaning
To attack suddenly and unexpectedly from a hidden position.
Example
The soldiers planned to ambush the enemy at dawn.
C1 noun /ˈvɜːrtɛks/

vertex

Meaning
The highest point; the top or the apex.
Example
The climber reached the vertex of the mountain.
C1 noun /ˈfɛlən/

felon

Meaning
a person who has committed a serious crime
Example
The felon was sentenced to ten years in prison.
C1 noun /ˈvaɪəˌleɪtər/

violator

Meaning
A person who breaks or disregards a law, rule, or agreement.
Example
The police caught the traffic violator at the intersection.
C1 adjective /ɪɡˈzɔːstɪv/

exhaustive

Meaning
Fully comprehensive and including all possibilities.
Example
The report provides an exhaustive analysis of the issue.
C1 verb /ˈpɑːzɪt/

posit

Meaning
To assume or suggest something as a fact or basis for reasoning.
Example
The scientist posited a new theory to explain the phenomenon.
C1 noun /ˈwɔː.tər ˈtʃes.nʌt/

Water Chestnut

Meaning
aquatic plant with edible white crisp tubers
Example
Water chestnuts add a nice crunch to stir-fry dishes.
C1 adjective /əˈdɒptɪv/

adoptive

Meaning
relating to the adoption of a child or the act of taking something as one’s own
Example
She grew up in a loving adoptive family.
C1 noun prɪˈdɪk.ə.mənt

predicament

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

fleece

Meaning
The woolly covering of a sheep; as a verb, to swindle or cheat someone.
Example
The farmer sheared the sheep’s fleece carefully.
C1 adjective /ˈtɛmpərd/

tempered

Meaning
having a specified temper or disposition; strengthened or moderated.
Example
She gave a tempered response to the criticism.
C1 adjective /ˈpræk.tɪ.kə.bəl/

practicable

Meaning
able to be done or put into practice successfully
Example
The plan is not practicable without more resources.
C1 noun /lɪˈbiːdoʊ/

libido

Meaning
Sexual desire or drive.
Example
Stress can sometimes lower a person's libido.
C1 noun /ˌdʒʊə.rɪsˈdɪk.ʃən/

Jurisdiction

Meaning
the official power to make legal decisions and judgments; the extent of this power
Example
This case falls under the jurisdiction of the federal court.
C1 noun sælˈveɪʃən

salvation

Meaning
Deliverance from sin and its consequences, believed by Christians to be brought about by faith in Christ.
Example
The story revolves around the theme of salvation.
C1 noun /brəˈzɪər/

Brassiere

Meaning
a woman's undergarment designed to support the breasts
Example
She bought a comfortable brassiere for daily wear.
C1 adjective /ˈtʃɛkərd/

chequered

Meaning
Having a pattern of squares, or marked by varied and contrasting experiences or periods.
Example
He had a chequered career with both great successes and failures.
C1 noun /ˌɪnkəmˈpliːtnəs/

incompleteness

Meaning
the state of not being complete or whole; lack of necessary parts or fullness
Example
The incompleteness of the report caused delays in the project.
C1 noun /fæd/

fad

Meaning
a temporary fashion or trend; a short-lived craze
Example
The new diet became a popular fad among teenagers.
C1 noun /ˌsaɪkoʊˈθɛrəpi/

psychotherapy

Meaning
The treatment of mental disorder by psychological rather than medical means.
Example
She attended weekly psychotherapy sessions to cope with her anxiety.
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.
C1 adjective /ˈskænti/

Scanty

Meaning
small in size or amount; insufficient; barely adequate
Example
The refugee camp had scanty food supplies.