cohorts
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C1 noun /ˈkoʊhɔːrts/

cohorts

Meaning
Groups of people who share a common feature or experience.
Example
Researchers compared the health outcomes of different cohorts.
C1 verb /lʊər/

lure

Meaning
to attract or tempt someone, often by offering something appealing
Example
The advertisement lured customers with promises of discounts.
C1 noun /ˈɡraʊnd kruː/

ground crew

Meaning
a team of people who maintain and service aircraft on the ground
Example
The ground crew prepared the plane for takeoff.
C1 noun /ˌjuːθəˈneɪʒə/

euthanasia

Meaning
The practice of intentionally ending a life to relieve pain and suffering.
Example
The debate about euthanasia raises difficult ethical questions.
C1 noun /prəʊˌkræs.tɪˈneɪ.ʃən/

procrastination

Meaning
The act of delaying or postponing tasks or activities.
Example
Procrastination is the enemy of success.
C1 adjective /ˈfrɛn.zid/

frenzied

Meaning
Wildly excited or uncontrolled
Example
The frenzied crowd cheered as the band took the stage.
C1 adjective /hɪpˈnɒtɪk/

hypnotic

Meaning
Producing sleep or a trance-like state; mesmerizing.
Example
The music had a hypnotic effect on the audience.
C1 noun dɪˈfleɪʃən

deflation

Meaning
Reduction of the general level of prices in an economy.
Example
Deflation often leads to decreased consumer spending.
C1 verb /sɪˈkluːd/

seclude

Meaning
To keep someone away from other people; to isolate.
Example
The monk chose to seclude himself in the mountains.
C1 noun /weɪl/

Wail

Meaning
a prolonged cry of pain, grief, or anger; to cry loudly
Example
The child's wail could be heard throughout the house.
C1 verb ˈsɪn.θə.saɪ.zɪŋ

synthesizing

Meaning
Combine (a number of things) into a coherent whole.
Example
He excels in synthesizing ideas from different sources.
C1 verb /sɪndʒ/

singe

Meaning
To burn something superficially or lightly, especially at the edges.
Example
The fire singed his eyebrows.
C1 phrasal verb /ɡlɒs ˈoʊ.vər/

gloss over

Meaning
to avoid discussing something unpleasant or make it seem less important
Example
The report glossed over the company's financial problems.
C1 adjective /ˈsʌn.dri/

sundry

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

panacea

Meaning
A solution or remedy for all difficulties or diseases.
Example
Education is often seen as a panacea for social problems.
C1 noun /ˌsɪmbɪˈəʊsɪs/

symbiosis

Meaning
A mutually beneficial relationship between different people or groups.
Example
The symbiosis between the two companies led to mutual growth.
C1 noun /brɛdθ/

breadth

Meaning
The distance or measurement from side to side; width; a wide range.
Example
The breadth of his knowledge impressed everyone.
C1 noun /ˈmɜːrsəˌnɛri/

mercenary

Meaning
a professional soldier hired to serve in a foreign army; also used to describe someone motivated solely by money.
Example
The mercenary fought for whoever paid the highest wage.
C1 noun /ˈtoʊɡə/

toga

Meaning
A loose outer garment worn in ancient Rome, typically draped over the shoulders and body.
Example
The senator wore a white toga during the ceremony.
C1 noun /skɪt/

skit

Meaning
a short, humorous performance or piece of writing
Example
The students performed a funny skit at the event.
C1 adjective /maɪˈɑːpɪk/

myopic

Meaning
lacking foresight or long-term perspective; also refers to nearsightedness
Example
The company’s myopic strategy led to long-term losses.
C1 adjective /ˈraɪ.tʃəs/

Righteous

Meaning
morally right or justifiable; virtuous; having strong moral principles
Example
She felt righteous anger at the unfair treatment of workers.
C1 noun /blɪs/

Bliss

Meaning
perfect happiness; great joy
Example
She felt pure bliss while watching the beautiful sunset.
C1 adjective /əbˈtjuːs/

Obtuse

Meaning
annoyingly insensitive or slow to understand; lacking in intelligence or perception
Example
He was being deliberately obtuse about the instructions.
C1 noun /stents/

stents

Meaning
Small mesh tubes used to treat narrow or blocked arteries.
Example
Stents were successfully placed using robotic techniques.
C1 adjective /ˌrɛprɪzɛnˈteɪʃənl̩/

representational

Meaning
Relating to or depicting something in a realistic or symbolic way.
Example
The artist preferred a representational style of painting.
C1 verb /ˈʃrɪvəl/

shrivel

Meaning
To become dry, wrinkled, and smaller due to lack of moisture.
Example
The flowers shriveled under the hot sun.
C1 adjective ˈkʌm.bə.səm

cumbersome

Meaning
Heavy, unwieldy, difficult to handle or carry.
Example
The cumbersome luggage slowed him down.
C1 verb /ʌnˈnɜːrv/

unnerve

Meaning
to make someone lose confidence, courage, or composure
Example
The hostile questions began to unnerve the witness.
C1 adjective /ɪnˈstɪŋk.tɪv/

instinctive

Meaning
Based on instinct; done without conscious thought; natural and automatic.
Example
His instinctive reaction saved his life.
C1 noun /ˈbreɪkər/

breaker

Meaning
A person or thing that breaks something; a large sea wave that breaks into foam near the shore; a device that interrupts an electric circuit.
Example
The breaker tripped during the storm, cutting off electricity.
C1 verb /prɪˈzaɪd/

preside

Meaning
to be in charge of a meeting, event, or organization
Example
She will preside over the meeting tomorrow.
C1 noun /lʌmp/

Lump

Meaning
a compact mass of a substance, especially one without a definite or regular shape
Example
She found a lump of sugar in the bowl.
C1 noun /ˈɪtʃ.i.nəs/

itchiness

Meaning
The quality or condition of feeling an irritating sensation on the skin that causes a desire to scratch.
Example
Eye itchiness often leads to rubbing.
C1 verb /ˌʌndərˈlaɪ/

underlie

Meaning
to be the hidden cause or basis of something
Example
Strong cultural traditions underlie the community's practices.
C1 adjective /ˈʃɪp.ʃeɪp/

Shipshape

Meaning
neat and tidy; in good order; well-organized
Example
Everything was shipshape before the inspection.
C1 adjective /ˈwaɪ.li/

Wily

Meaning
clever; cunning; sly
Example
The wily fox escaped from the trap using his cunning intelligence.
C1 verb /taʊt/

tout

Meaning
to promote, praise, or advertise aggressively
Example
The company touted its new product as a game-changer.
C1 adjective /ˈroʊtəri/

rotary

Meaning
Relating to or characterized by rotation; revolving around an axis.
Example
The machine uses a rotary engine to function efficiently.
C1 noun /əˌfɪl.iˈeɪ.ʃən/

affiliation

Meaning
The state or process of affiliating or being affiliated; a connection or association.
Example
His affiliation with the company lasted for a decade.
C1 verb /əˈdʒuːdɪˌkeɪt/

adjudicate

Meaning
to make a formal judgment or decision about a problem or dispute
Example
The committee was formed to adjudicate disputes between the parties.
C1 adjective ˈek.wɪ.tə.bəl

equitable

Meaning
Fair and impartial
Example
Equitable AI ensures fairness in technology use.
C1 noun /ˈdʒʌŋk.tʃər/

Juncture

Meaning
a particular point in events or time; a critical moment when important decisions must be made
Example
At this juncture, we need to make a crucial decision about our future.
C1 noun /pərˈvɜr.sə.ti/

Perversity

Meaning
deliberate determination to behave in an unreasonable or unacceptable way; the quality of being contrary or obstinate
Example
His perversity in refusing help frustrated everyone.
C1 noun /pərˈvɜːrʒən/

perversion

Meaning
The act of distorting or corrupting the original meaning, purpose, or state of something.
Example
The regime’s censorship was seen as a perversion of free speech.
C1 noun /ˈvæntɪdʒ/

vantage

Meaning
a position or situation that gives an advantage or a good view
Example
From this vantage, we could see the entire valley.
C1 adjective /ˌsæŋktɪˈmoʊniəs/

sanctimonious

Meaning
Making a show of being morally superior to others; hypocritically pious.
Example
He gave a sanctimonious speech about honesty while he himself was corrupt.
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.
C1 adjective /trænsˈfɜːrəbəl/

Transferable

Meaning
able to be moved from one place to another; able to be given to someone else
Example
The skills you learn here are transferable to other jobs.
C1 adjective /səkˈsɪŋkt/

succinct

Meaning
Briefly and clearly expressed; characterized by clear, precise expression in few words.
Example
His speech was succinct and impactful.
C1 verb /ænˈtæɡənaɪz/

antagonize

Meaning
to cause someone to become hostile or angry; to provoke opposition
Example
His rude remarks only served to antagonize his colleagues.
C1 adjective ˈɒptɪmaɪzd

optimized

Meaning
Made as fully perfect, functional, or effective as possible; improved to achieve maximum efficiency.
Example
The system has been optimized for faster performance.
C1 noun /fəˈsɑːd/

facade

Meaning
The front of a building; a false or superficial appearance
Example
The building's glass facade reflected the sunset.
C1 noun /ˈsaɪnəs/

sinus

Meaning
A cavity within a bone or tissue, especially those in the bones of the face connected with the nasal cavities.
Example
He suffered from a sinus infection that caused headaches.
C1 noun /ˈprəʊsiːdz/

proceeds

Meaning
money obtained from an event, activity, or sale
Example
The proceeds from the charity event were donated to the orphanage.
C1 adjective /ˌret.rəˈspek.tɪv/

Retrospective

Meaning
looking back on or dealing with past events or situations
Example
The museum held a retrospective exhibition of the artist's work.
C1 noun /ˈlaɪbəl/

libel

Meaning
a published false statement that damages a person's reputation
Example
The newspaper was sued for libel after publishing false claims.
C1 noun /əˈtoʊnmənt/

atonement

Meaning
the act of making amends for a wrong, sin, or injury
Example
The festival was celebrated as a day of atonement.
C1 noun /kwæk/

Quack

Meaning
a person who pretends to be a doctor but has no medical training; the sound a duck makes
Example
People should be careful not to trust medical advice from a quack.
C1 adjective /ˌɪnɔːrˈɡænɪk/

inorganic

Meaning
relating to substances that are not derived from living organisms; lacking organic structure or growth
Example
Inorganic compounds are commonly studied in chemistry labs.
C1 adjective /ˌsʌbˈkɒn.ʃəs/

subconscious

Meaning
Of or concerning the part of the mind which one is not fully aware of but which influences actions and feelings.
Example
Fears often come from the subconscious mind.
C1 verb, noun /klɑːɡ/

clog

Meaning
to block or become blocked; a type of heavy wooden shoe
Example
The sink was clogged with food waste.
C1 noun ɪnˈdʌldʒəns

indulgence

Meaning
The practice of allowing oneself to enjoy the pleasure of something.
Example
His indulgence in junk food affected his health.
C1 noun /bʊk ˈbaɪn.dər/

Book binder

Meaning
a person whose job is to fasten the pages of books together and put covers on them
Example
The old book binder carefully restored the antique manuscript.
C1 adjective /pərˈvɜːrs/

perverse

Meaning
showing a deliberate desire to behave in a way that is unreasonable, contrary, or unacceptable
Example
He took a perverse pleasure in upsetting his colleagues.
C1 adjective vəˈreɪ.ʃəs

voracious

Meaning
Having a very eager approach to an activity; wanting or devouring great quantities of food or having an insatiable appetite.
Example
He has a voracious appetite for knowledge.
C1 adverb /əˈtroʊʃəsli/

atrociously

Meaning
in a very cruel, shocking, or extremely bad manner
Example
The service at the restaurant was atrociously slow.
C1 noun /prəˈpɛlənt/

propellant

Meaning
A substance that drives or pushes something forward, especially fuel in rockets or engines.
Example
The rocket uses a liquid propellant to launch into space.
C1 noun /ˌlɛ.seɪ ˈfɛər/

laissez-faire

Meaning
An economic policy where government does not intervene in business affairs.
Example
Laissez-faire policies encourage private enterprise.
C1 verb /lɜːrk/

lurk

Meaning
to remain hidden so as to wait for an opportunity to attack or observe
Example
A stranger lurked in the shadows.
C1 adjective /dɪˈspɪkəbl/

despicable

Meaning
Deserving hatred and contempt; vile or shameful.
Example
His despicable actions shocked the entire community.
C1 noun /ˌsɑːrdʒənt ˈmeɪdʒər/

sergeant-major

Meaning
A senior non-commissioned officer in the army responsible for discipline and administration within a unit.
Example
The sergeant-major inspected the troops before the parade.
C1 noun /ˈtem.pɪst/

Tempest

Meaning
a violent storm with strong winds; a state of great disturbance or tumult
Example
The sailors struggled to navigate through the fierce tempest.
C1 adjective/verb /ˈsiːzənd/

seasoned

Meaning
Experienced in a particular activity; also, flavored with spices.
Example
She is a seasoned teacher with over 20 years of experience.
C1 adjective /ˈskɪtɪʃ/

skittish

Meaning
easily frightened or nervous; unpredictable
Example
The horse was too skittish to ride.
C1 verb /kənˈsɛptʃuəlaɪz/

conceptualize

Meaning
to form an idea or concept of something in your mind
Example
The artist conceptualized a new design for the exhibition.
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 verb/noun /pərˈvɜːrt/

pervert

Meaning
As a verb: to distort the meaning or purpose of something; as a noun: a person with abnormal or immoral sexual behavior.
Example
He tried to pervert the truth to escape punishment.
C1 adjective /ˈbloʊtɪd/

bloated

Meaning
swollen or puffed up, often unpleasantly
Example
After the big meal, he felt bloated and uncomfortable.
C1 adjective ɪˈveɪ.sɪv

evasive

Meaning
Tending to avoid commitment or self-revelation, especially by responding only indirectly.
Example
He gave an evasive answer to avoid trouble.
C1 adjective /ɪmˈpɜːrviəs/

impervious

Meaning
Not allowing fluid to pass through; unable to be affected by something.
Example
The jacket is impervious to rain.
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 /ˈpær.ə.saɪt/

Parasite

Meaning
an organism that lives on or in another organism and benefits at its expense; a person who depends on others
Example
The dog was treated for intestinal parasites.
C1 adjective /aɪˈdɪlɪk/

idyllic

Meaning
Like an idyll; extremely happy, peaceful, or picturesque.
Example
They enjoyed an idyllic vacation by the sea.
C1 noun /ˈpɜːrkəleɪtər/

percolator

Meaning
A device used for brewing coffee by continually cycling boiling water through coffee grounds.
Example
She made a fresh pot of coffee using the percolator.
C1 verb /ˈfɜːr.tɪ.laɪz/

fertilize

Meaning
to make soil or land more fertile by adding substances
Example
Farmers fertilize the fields to increase crop yield.
C1 noun /ˌekspəˈzɪʃən/

exposition

Meaning
a detailed explanation or a large public exhibition
Example
The scientist gave a clear exposition of the theory.
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 /pərˈveɪsɪv/

pervasive

Meaning
Existing in or spreading through every part of something
Example
Pervasive technology has become a fundamental part of daily life.
C1 noun /kənˈtʃɛrtoʊ/

concerto

Meaning
a musical composition for one or more solo instruments accompanied by an orchestra
Example
She played a Mozart concerto with the orchestra.
C1 noun /ˈlæb.ə.rɪnθ/

labyrinth

Meaning
A complicated network of paths or passages; an intricate and confusing arrangement.
Example
The city's streets were like a labyrinth.
C1 noun /ˈbrɛvɪti/

brevity

Meaning
Concise and exact use of words in writing or speech.
Example
The brevity of the speech kept the audience engaged.
C1 adjective /ɪnˈflæməˌtɔːri/

inflammatory

Meaning
causing inflammation in the body; arousing anger, hostility, or strong emotion
Example
His inflammatory speech triggered protests across the city.
C1 adjective /ˈpriːmə/

prima

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

Dahlia

Meaning
a garden plant with brightly colored flowers that bloom in summer and autumn
Example
She planted colorful dahlias in her garden last summer.
C1 adjective /kənˈteɪ.dʒəs/

Contagious

Meaning
likely to spread to and affect others; infectious
Example
Her laughter is contagious and makes everyone smile.
C1 adjective /kɔɪ/

coy

Meaning
reluctant to give details or reveal feelings; shy or reserved
Example
She gave a coy smile when asked about her plans.
C1 adjective /məˈkɑː.brə/

Macabre

Meaning
disturbing because concerned with death; gruesome and horrifying
Example
The horror movie had a macabre atmosphere.
C1 verb /ɪnˈkrɪmɪˌneɪt/

incriminate

Meaning
to make someone appear guilty of a crime or wrongdoing
Example
The new evidence could incriminate the suspect in the robbery case.
C1 noun /ˌlɪbəˈreɪʃən wɔːr/

liberation war

Meaning
a war fought to gain freedom from foreign rule, occupation, or oppression; an armed struggle for national independence
Example
The liberation war reshaped the nation’s history and identity.
C1 noun /ˈɡræv.ɪ.tæs/

gravitas

Meaning
Dignity, seriousness, or solemnity of manner or speech.
Example
The judge spoke with great gravitas.
C1 verb /tʃæsˈtaɪz/

chastise

Meaning
to criticize or punish severely
Example
The teacher chastised the student for being late.
C1 adjective পারসিভেবল

perceivable

Meaning
Able to be seen, noticed, or detected.
Example
The changes in winter weather are perceivable in rural areas.
C1 noun ˌsɪstəˈmætɪk ˈseɪvɪŋz

systematic savings

Meaning
A structured and organized approach to regularly saving money according to a planned schedule
Example
Systematic savings can mitigate financial crises in old age.
C1 adjective ˈsɒvrɪn

sovereign

Meaning
Possessing supreme or ultimate power; independent.
Example
The sovereign government has control over its currency.
C1 adjective /ˈdiːviəs/

devious

Meaning
Skillful at using underhanded tactics to achieve goals; not straightforward.
Example
He used a devious plan to gain control of the company.
C1 noun /nɪərˈvɑːnə/

nirvana

Meaning
A state of perfect happiness, peace, and freedom from suffering; in Buddhism, the ultimate goal of liberation.
Example
Meditation helps some people seek nirvana in their lives.
C1 noun əˈpreɪ.zəl

appraisal

Meaning
An assessment or evaluation of performance or quality.
Example
The annual appraisal determines salary increments.
C1 adjective /ɪmˈbrɔɪld/

embroiled

Meaning
being deeply involved in a difficult situation, conflict, or scandal
Example
She found herself embroiled in a heated family dispute.
C1 adjective /ɛnˌsaɪkləˈpiːdɪk/

encyclopedic

Meaning
Having comprehensive knowledge of many subjects; relating to or characteristic of an encyclopedia.
Example
Her encyclopedic knowledge of history amazed everyone at the conference.
C1 adjective /kəmˈplɪsɪt/

complicit

Meaning
involved with others in an illegal activity or wrongdoing
Example
He was found complicit in the crime.
C1 verb /hoʊn/

hone

Meaning
To sharpen a blade or to improve a skill through practice.
Example
She honed her presentation skills before the big meeting.
C1 noun /ˈmʌltɪplaɪər/

multiplier

Meaning
a number or factor by which another number is multiplied; something that increases the effect or value of something else
Example
In economics, government spending can act as a multiplier for economic growth.
C1 adjective /ˌhɔːrtɪˈkʌltʃərəl/

horticultural

Meaning
Relating to the art or practice of garden cultivation and management.
Example
She studied horticultural science at the university.
C1 noun /kəmˈplɪsəti/

complicity

Meaning
the state of being involved with others in an illegal activity or wrongdoing
Example
The court revealed his complicity in the fraud scheme.
C1 noun /dɪˌsem.ɪˈneɪ.ʃən/

dissemination

Meaning
The action or fact of spreading something, especially information, widely.
Example
The dissemination of false information is a major issue.
C1 adjective /hjuːˈmeɪn/

humane

Meaning
Showing compassion or benevolence.
Example
The doctor provided humane treatment to the injured animals.
C1 noun /ˈfɔːrˌbɛər/

forebear

Meaning
An ancestor, especially one who lived a long time ago.
Example
He often speaks of his forebears with great respect.
C1 noun /ˈrɪɡər/

rigor

Meaning
strictness, severity, or demanding conditions
Example
The training was carried out with great rigor.
C1 adjective /ˈmɜː(r)dərəs/

Murderous

Meaning
having the intent to kill; extremely violent; bloodthirsty
Example
The murderous look in his eyes frightened everyone.
C1 adjective /prɪˈzʌmp.tʃu.əs/

presumptuous

Meaning
Overconfident, rude, or taking liberties without permission.
Example
It was presumptuous of him to make that decision without consulting others.