Thereupon
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C1 adverb /ˌðeərəˈpɒn/

Thereupon

Meaning
immediately after that; following that event
Example
He finished his speech and thereupon left the stage.
C1 noun ˈrəʊvə

rover

Meaning
A vehicle for driving over rough terrain, especially one driven by remote control over extraterrestrial terrain.
Example
The rover landed on Mars to begin its exploration.
C1 noun /ɪkˈstræv.ə.ɡəns/

Extravagance

Meaning
lack of restraint in spending money; excessive expense
Example
The wedding celebration was criticized for its unnecessary extravagance.
C1 adjective /trænˈsen.dənt/

transcendent

Meaning
Beyond or above the range of normal or merely physical human experience.
Example
His art has a transcendent quality.
C1 noun /ˈsʌm.ɪt əv ðə ˈfjuː.tʃər/

Summit of the Future

Meaning
A high-level conference focused on addressing future challenges and opportunities.
Example
The Summit of the Future addressed global challenges.
C1 adjective /ˌpriːˈmɛdɪˌteɪtɪd/

premeditated

Meaning
planned in advance; done deliberately
Example
The crime was clearly premeditated.
C1 noun ˌprɒf.ɪ.təˈbɪl.ɪ.ti

profitability

Meaning
The degree to which a business or activity yields profit or financial gain.
Example
Increasing sales and reducing costs boosted profitability.
C1 noun /ˌfɜːrmənˈteɪʃən/

fermentation

Meaning
a chemical process by which substances like sugar are converted into alcohol or acids using microorganisms
Example
The fermentation of grapes produces wine.
C1 /splɪnt/

splint

Meaning
A rigid device used to support and immobilize a broken or injured body part.
Example
The doctor applied a splint to stabilize the patient's broken arm.
C1 noun ˈkiː.stəʊn ˈspiː.ʃiːz

keystone species

Meaning
A species on which other species in an ecosystem largely depend, such that if it were removed the ecosystem would change drastically.
Example
Wolves are a keystone species that regulate prey populations.
C1 noun /ˈneɡ.lɪ.dʒəns/

Negligence

Meaning
failure to take proper care in doing something; carelessness
Example
The accident was caused by driver negligence.
C1 noun /ˈkɜːrlər/

curler

Meaning
A small roller used for curling hair.
Example
She used a curler to style her hair for the party.
C1 noun, adjective /ˈsɛntənəri/ or /sɛnˈtɛnəri/

centenary

Meaning
The hundredth anniversary of a significant event; relating to a period of 100 years.
Example
The school celebrated its centenary with a grand event.
C1 adjective /ˈræb.ɪd/

rabid

Meaning
Having extreme or fanatical support for something; relating to or suffering from rabies.
Example
He was a rabid fan of the football team.
C1 adjective /ˌkɒnvəˈlɛsnt/

convalescent

Meaning
recovering from an illness or medical treatment
Example
The hospital has a special ward for convalescent patients.
C1 adjective ˈɒk.sɪ.də.tɪv

oxidative

Meaning
Related to or caused by oxidation, especially cellular damage from free radicals.
Example
Excess stress can lead to oxidative damage in cells.
C1 noun /ˌdɒmɪˈneɪʃən/

domination

Meaning
the exercise of control or influence over someone or something
Example
The empire sought domination over its neighbors.
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 /blaɪt/

blight

Meaning
A disease or condition that causes plants to wither; something that spoils or damages.
Example
The drought was a blight on the farmer’s crops.
C1 noun /ˈhɪpnətɪzəm/

hypnotism

Meaning
The practice or act of inducing hypnosis.
Example
He studied hypnotism as part of his psychology degree.
C1 adjective /ˈkɔːrəl/

choral

Meaning
Relating to, written for, or performed by a choir or chorus.
Example
The church hosted a choral performance on Sunday.
C1 adjective, noun /rɪˈsiːvəbl/

receivable

Meaning
Money that is owed to a company and is expected to be paid.
Example
The company's receivables increased significantly this quarter.
C1 noun /əˈbreɪʒən/

abrasion

Meaning
a scrape or wearing away of the skin or surface due to friction
Example
He suffered a minor abrasion on his knee after falling.
C1 adjective /ˌoʊvərˈbloʊn/

overblown

Meaning
excessively exaggerated or inflated
Example
The controversy was overblown by the media.
C1 verb /ˈɡɑː.nɪʃ/

garnish

Meaning
To decorate food with small items for added flavor or visual appeal.
Example
She garnished the dish with fresh coriander leaves.
C1 adjective /ʌnˈmænɪdʒəbəl/

Unmanageable

Meaning
difficult or impossible to control or handle
Example
The large class became unmanageable without proper supervision.
C1 noun /ˈnek.səs/

Nexus

Meaning
a connection or series of connections linking two or more things
Example
There's a clear nexus between education and economic development.
C1 noun /ˈɜːr.θən pɒt/

Earthen pot

Meaning
a container made of baked clay or earth, used for cooking or storing
Example
The earthen pot keeps water naturally cool in summer.
C1 adjective /ˈɜːr.θən/

Earthen

Meaning
made of earth or clay; relating to pottery or ceramic materials
Example
The kitchen had beautiful earthen pots for storage.
C1 noun /maɪt/

mite

Meaning
a very small creature, often a tiny arachnid; also used to mean a very small amount
Example
The mattress was infested with dust mites.
C1 adjective /ˈspɛərɪŋ/

sparing

Meaning
Using or giving only a little of something; economical.
Example
She is sparing in her use of words.
C1 noun /ˌvɜːbəlɪˈzeɪʃən/

verbalization

Meaning
The action of expressing something in words.
Example
The verbalization of his thoughts was clear and direct.
C1 noun /ˈpoʊʃən/

potion

Meaning
a liquid with healing, magical, or poisonous properties
Example
The witch gave the hero a healing potion.
C1 adjective /ˌɪnækˈsɛsəbl/

inaccessible

Meaning
unable to be reached, entered, or understood
Example
The remote village is almost inaccessible during the rainy season.
C1 noun ˌkæl.ɪˈbreɪ.ʃən

calibration

Meaning
The action or process of adjusting or determining the accuracy of measuring instruments.
Example
The accuracy of a scale depends on regular calibration.
C1 noun /əˈseɪlənt/

assailant

Meaning
a person who attacks another
Example
The police arrested the assailant at the scene.
C1 verb /dɪsˈfɪɡjər/

disfigure

Meaning
to spoil or damage the appearance of something
Example
The fire disfigured the old building.
C1 noun /bəˈbuːn/

Baboon

Meaning
a large African and Arabian primate with a dog-like snout and colorful buttocks
Example
The baboon troop gathered around the watering hole in the savanna.
C1 verb /ˈiːkwəlaɪz/

equalize

Meaning
To make equal or level in status, value, or amount.
Example
The team equalized the score in the last minute.
C1 verb /ˌpoʊstˈdeɪt/

postdate

Meaning
To assign a date later than the actual date to a document or event.
Example
She postdated the check to next month.
C1 noun /həˌluː.sɪˈneɪ.ʃən/

Hallucination

Meaning
an experience involving the apparent perception of something not present; a false or distorted perception
Example
The patient experienced visual hallucinations as a side effect of the medication.
C1 noun /voʊɡ/

vogue

Meaning
the prevailing fashion, style, or trend at a particular time
Example
Minimalist design is currently in vogue.
C1 noun ˌræʃ.ən.əl.ɪˈzeɪ.ʃən

rationalization

Meaning
The practice of finding reasons for behavior or actions that are not the real reasons.
Example
His rationalization of the mistake was not convincing.
C1 noun /əˈstuːt.nəs/

astuteness

Meaning
The ability to accurately assess situations or people and turn this to one's advantage.
Example
His astuteness helped in negotiations.
C1 noun /ˈsaɪkiː/

psyche

Meaning
the human soul, mind, or spirit
Example
The novel explores the depths of the human psyche.
C1 noun /ˈtriːtɪs/

treatise

Meaning
a formal and systematic written work dealing with a subject in detail
Example
He wrote a treatise on modern economic theory.
C1 adjective /dɪˈfʌŋkt/

defunct

Meaning
No longer existing, operating, or functioning.
Example
The company became defunct after the financial crisis.
C1 adjective /ˈærəbəl/

arable

Meaning
suitable for growing crops or farming
Example
The farmer purchased arable land to expand his crops.
C1 adjective /ˈhɔːltɪŋ/

halting

Meaning
slow and hesitant, especially due to lack of confidence
Example
She gave a halting reply during the interview.
C1 noun /æbˈdʌk.ʃən/

abduction

Meaning
the act of taking someone away illegally by force; kidnapping
Example
The police are investigating the abduction of the child.
C1 noun /ˈɜːrθənˌwɛr/

earthenware

Meaning
pottery made of clay and hardened by heat
Example
The shop displayed beautiful earthenware pots and bowls.
C1 verb /ˌriːˈsiːt/

reseat

Meaning
to seat someone again or to fit something back into its place
Example
The usher had to reseat the guests after the interruption.
C1 adjective /ˈfiːbl/

feeble

Meaning
lacking physical strength or vigor; weak
Example
After the illness, she felt too feeble to stand.
C1 noun ˈrez.ɪ.djuː

residue

Meaning
A small amount of something that remains after the main part has gone or been removed.
Example
Soap residue affects appliance efficiency.
C1 adjective /rɪˈpres.ɪv/

Repressive

Meaning
restraining freedom or preventing self-expression; oppressive
Example
The repressive government banned all forms of protest.
C1 noun ˈæŋkərɪdʒ

anchorage

Meaning
A secure holding place; a place where ships can anchor safely.
Example
The boat was anchored near the shore for safety.
C1 adjective /oʊˈbiːs/

obese

Meaning
Extremely overweight; having an excessive amount of body fat.
Example
The doctor advised the obese patient to adopt a healthier lifestyle.
C1 noun /mɪˈlɛniəm/

millennium

Meaning
a period of one thousand years; often used to mark an anniversary
Example
The year 2000 was celebrated as the beginning of a new millennium.
C1 noun /ˈɑːdəsi/

odyssey

Meaning
a long, adventurous journey; a series of experiences
Example
Her career has been an odyssey of challenges and achievements.
C1 adjective /ˈpriːmə/

prima

Meaning
first or most important; excellent
Example
She was treated as the prima ballerina of the troupe.
C1 noun /ˈmɒnəˌlɒɡ/

monologue

Meaning
A long speech by one person, often in a play or performance.
Example
The actor delivered a powerful monologue on stage.
C1 noun /rɪˈsaɪtl/

recital

Meaning
A performance of music, dance, or poetry, usually by a soloist.
Example
She gave a piano recital at the concert hall.
C1 adjective /ˈhɑːrdi/

hardy

Meaning
Strong, robust, and capable of enduring difficult conditions.
Example
Hardy plants can survive the harsh winter.
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 /ˈkæn.dɚ/

candor

Meaning
The quality of being open, honest, and straightforward in speech or expression.
Example
She spoke with candor about the challenges she faced.
C1 adjective /ˈɪɡ.ni.əs/

igneous

Meaning
Formed through the cooling and solidification of magma or lava.
Example
Granite is an igneous rock commonly used in construction.
C1 noun /ˈstjuːpər/

stupor

Meaning
a state of near-unconsciousness or insensibility
Example
He remained in a stupor after hearing the shocking news.
C1 adjective /ˈneɡ.lɪ.dʒənt/

Negligent

Meaning
failing to take proper care; careless; showing lack of attention
Example
The negligent driver caused a serious accident.
C1 noun, verb /ˈɔːtɒpsi/

autopsy

Meaning
a post-mortem examination to discover the cause of death or the extent of disease
Example
The autopsy revealed that the victim had died from poisoning.
C1 noun ˌɔːɡ.menˈteɪ.ʃən

augmentation

Meaning
Increasing quantity, power or performance.
Example
The company invested in the augmentation of its workforce.
C1 adjective /ˈvɪskəs/

viscous

Meaning
Having a thick, sticky consistency between solid and liquid.
Example
Honey is a viscous liquid that flows slowly.
C1 verb /ɪˈspaʊz/

espouse

Meaning
To adopt or support a cause, belief, or way of life.
Example
She espoused the philosophy of nonviolence throughout her career.
C1 noun /ˌɔːkʃəˈnɪər/

auctioneer

Meaning
a person who conducts auctions by calling out bids and selling items to the highest bidder
Example
The auctioneer quickly raised the price as bidders competed for the painting.
C1 verb /ˌkɒntrəˈviːn/

contravene

Meaning
to go against or act in opposition to a law, rule, or agreement
Example
He contravened the safety regulations and was fined.
C1 noun /ˈmjʊr.əl/

Mural

Meaning
a painting or artwork applied directly on a wall or ceiling
Example
The artist painted a beautiful mural on the school wall.
C1 noun/verb /ɪˈstiːm/

esteem

Meaning
Respect and admiration, typically for a person.
Example
She is held in high esteem by her colleagues.
C1 verb /veks/

vex

Meaning
to annoy or frustrate someone; to cause trouble
Example
The constant noise from construction vexes the residents.
C1 noun /dɜːrθ/

dearth

Meaning
A scarcity or lack of something.
Example
There was a dearth of food during the famine.
C1 noun /ˈtrɪlədʒi/

trilogy

Meaning
a set of three related works, usually books or films, that form a connected story
Example
The director finally released the third film to complete the sci-fi trilogy.
C1 noun /mɔːˈtæləti/

mortality

Meaning
the state of being subject to death; the death rate of a population
Example
Advancements in medicine have reduced child mortality significantly.
C1 preposition /ˈbɑːrɪŋ/

barring

Meaning
except for; if not for
Example
Barring a miracle, the team will not win the championship.
C1 adjective /ˌaɪdiəˈlɪstɪk/

Idealistic

Meaning
pursuing high principles or ideals; unrealistically optimistic
Example
She has an idealistic view of changing the world.
C1 noun /teɪnt/

Taint

Meaning
a stain or mark that spoils something; corruption or contamination
Example
The scandal left a permanent taint on his reputation.
C1 verb /reɪv/

rave

Meaning
to speak or write about something with great enthusiasm or admiration
Example
Critics rave about the new movie.
C1 adjective /ɪkˈsplɔɪtətɪv/

exploitative

Meaning
making use of a situation or people unfairly and unethically for one's own advantage
Example
The workers protested against the exploitative practices of the factory.
C1 verb /dɪˈspɛns/

dispense

Meaning
To distribute or provide something, especially in portions.
Example
The machine dispenses clean drinking water.
C1 noun /ˈsɪmətri/

symmetry

Meaning
the quality of having balanced proportions or identical parts facing each other
Example
The building’s symmetry impressed the visitors.
C1 noun əˈtrɪʃ.ən

attrition

Meaning
The process of reducing something's strength or effectiveness through sustained attack or pressure.
Example
The company faced high employee attrition due to job dissatisfaction.
C1 adjective /ˈswɛltərɪŋ/

sweltering

Meaning
uncomfortably hot
Example
The sweltering heat made it hard to work.
C1 noun ˈiːkəʊˌsɪstəm ˈsɜːvɪsɪz

ecosystem services

Meaning
The benefits people obtain from ecosystems.
Example
Forests provide valuable ecosystem services, such as purifying air and water.
C1 verb /ɪnˈtruːd/

intrude

Meaning
To enter a place or situation where one is not wanted or not invited.
Example
He felt embarrassed to intrude on their private conversation.
C1 noun /ˈɛspiənɑːʒ/

espionage

Meaning
The practice of spying or using spies to gather secret information, usually for political or military purposes.
Example
The agent was arrested on charges of espionage against the state.
C1 adjective /ˈmɑːr.dʒɪ.nəl/

Marginal

Meaning
relating to or situated at the edge; minimal; slight
Example
The marginal improvement in sales was barely noticeable.
C1 adjective /ɪˈnɛpt/

inept

Meaning
lacking skill or ability; clumsy or incompetent
Example
His inept handling of the situation made it worse.
C1 noun /təˈpɒɡrəfi/

topography

Meaning
the arrangement of the natural and artificial physical features of an area
Example
The topography of the region made construction very challenging.
C1 adjective, noun /ˈkɑːr.dɪ.nəl/

cardinal

Meaning
As an adjective: of prime importance; as a noun: a high-ranking Catholic clergyman or a type of bird.
Example
Honesty is a cardinal virtue in life.
C1 noun /ˈvendʒəns/

Vengeance

Meaning
punishment inflicted or retribution exacted for an injury or wrong; revenge
Example
He swore to seek vengeance against those who wronged him.
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 adjective /ɑːrˈkeɪɪk/

archaic

Meaning
very old or old-fashioned; belonging to an earlier time
Example
Some laws are considered archaic and no longer relevant.
C1 noun /ˈtændʒənt/

tangent

Meaning
a straight line or plane that touches a curve or curved surface at a point but does not cross it
Example
The teacher drew a tangent to the circle on the board.
C1 noun /ˈdeɪˌbreɪk/

daybreak

Meaning
The time in the morning when daylight first appears; dawn.
Example
They set out on their journey at daybreak.
C1 noun /ˈpraɪ.mər/ (US), /ˈprɪm.ər/ (UK)

primer

Meaning
A basic introductory book or a substance used to prepare a surface for painting.
Example
He read a primer on programming before starting his course.
C1 noun /ˈfɔːrdʒəri/

forgery

Meaning
the crime of making fake documents, money, or artworks
Example
The bank detected a forgery in the signature on the cheque.
C1 noun /tiː ˈstreɪnər/

Tea-strainer

Meaning
a small perforated device used to strain tea leaves from brewed tea
Example
I always use a tea-strainer when pouring tea into cups.
C1 noun /ˈrɒndɪvuː/

rendezvous

Meaning
a meeting or appointment at an agreed time and place
Example
They arranged a secret rendezvous at the café.
C1 noun /ˈhæm.lət/

Hamlet

Meaning
a small rural settlement, smaller than a village; a small community
Example
The tiny hamlet nestled in the valley had only a dozen houses and one small church.
C1 adjective /əˈluːf/

aloof

Meaning
Not friendly or forthcoming; cool and distant.
Example
He remained aloof during the entire discussion.
C1 verb /ˈɪrɪˌɡeɪt/

irrigate

Meaning
to supply water to land or crops; to wash out a wound with water
Example
Farmers irrigate their fields during dry seasons.
C1 adverb /ˌɪn.dɪˈskrɪm.ɪ.nət.li/

Indiscriminately

Meaning
without making careful distinctions; randomly; without discrimination
Example
The company fired employees indiscriminately without considering their performance.
C1 adjective /juːˈbɪkwɪtəs/

ubiquitous

Meaning
Existing or being everywhere at the same time.
Example
Social media has become ubiquitous among young people.
C1 noun ˈremnənts

remnants

Meaning
A small remaining quantity of something; a surviving trace.
Example
The remnants of the wall are still visible.
C1 noun, verb /səˈpiːnə/

subpoena

Meaning
a legal document ordering someone to attend court; to summon someone with such a document
Example
The witness received a subpoena to appear in court next week.
C1 noun ˌmɪsˈmænɪdʒmənt

mismanagement

Meaning
Bad or careless management of something.
Example
Mismanagement of plastic waste worsens pollution.
C1 noun /ˈɔr.i.ənt/

Orient

Meaning
the East, especially countries of eastern Asia; to determine one's position or direction
Example
Many spices come from the Orient.
C1 verb /əbˈstrʌkt/

obstruct

Meaning
to block or hinder progress; to prevent or impede movement
Example
The fallen tree obstructed the road for several hours.
C1 verb /prɪˈkluːd/

preclude

Meaning
To prevent something from happening; to make impossible.
Example
Heavy rain precluded the possibility of a picnic.
C1 adjective /kənˈkluː.sɪv/

Conclusive

Meaning
final; decisive; settling a matter completely
Example
The evidence was conclusive and left no room for doubt.
C1 adjective /ˈpælpəbl̩/

palpable

Meaning
easily perceived or felt; so intense as to seem almost tangible
Example
There was a palpable sense of excitement in the room.
C1 verb /səˈfɪstɪkeɪt/

sophisticate

Meaning
to make something more complex or refined; to educate or develop in taste and manners
Example
Traveling abroad helped sophisticate his worldview.
C1 noun /ˈkælkjʊləs/

calculus

Meaning
A branch of mathematics concerned with rates of change and accumulation; also a hard mineral deposit in the body such as on teeth.
Example
Calculus is essential for advanced studies in physics and engineering.
C1 verb /ɪkˈstɔːrt/

extort

Meaning
to obtain something, especially money, by force, threats, or unfair means
Example
The gang attempted to extort money from local shopkeepers.