Star
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A1 noun /stɑːr/

Star

Meaning
a fixed luminous point in the night sky that produces light and heat through nuclear fusion
Example
Thousands of stars are visible in the clear night sky.
C2 noun /ˌbɪbliəʊˈmeɪniə/

bibliomania

Meaning
An extreme obsession with collecting or possessing books.
Example
His bibliomania led him to fill every room with books.
C1 adjective /ˌpæθəˈdʒɛnɪk/

pathogenic

Meaning
Capable of causing disease.
Example
Some bacteria are harmless, while others are highly pathogenic.
B2 noun ˈbɛntʃˌmɑːr.kɪŋ

benchmarking

Meaning
Comparing with a specific industry or competitor to set the best standards.
Example
Companies use benchmarking to assess their performance.
C1 noun /vʌlˈɡær.ɪ.ti/

Vulgarity

Meaning
the quality of being rude, offensive, or indecent; lack of sophistication or good taste
Example
The comedian's jokes were criticized for their vulgarity.
C2 adjective /ˈɪm.pi.əs/

Impious

Meaning
irreligious; lacking reverence for religion; blasphemous
Example
The impious act shocked the religious community.
B1 adjective /ʌnˈseɪf/

Unsafe

Meaning
involving or causing danger or risk; not protected from harm
Example
It is unsafe to walk alone in this neighborhood at night.
C1 noun /ˈnɑː.sɪ.sɪ.zəm/

narcissism

Meaning
Excessive interest in or admiration of oneself; extreme selfishness.
Example
His excessive narcissism made it difficult for him to empathize with others.
B2 noun /ɪnˈdʒɛkʃən/

injection

Meaning
the act of introducing a substance into the body through a needle
Example
The nurse gave me an injection to prevent the infection.
B2 adjective /ˌɪnkəmˈpliːt/

incomplete

Meaning
Not finished, lacking some parts or not whole.
Example
Her report was incomplete and needed further details.
C1 adjective /loʊθ/

loath

Meaning
reluctant or unwilling to do something
Example
She was loath to admit her mistake in front of everyone.
C1 noun /ˈnʌt.meg/

Nut meg

Meaning
a spice made from the seed of the fruit of an evergreen tree, used in cooking and baking
Example
The recipe called for a teaspoon of ground nutmeg to flavor the custard.
C2 adverb /ˈvɛrɪli/

verily

Meaning
truly; certainly; without a doubt
Example
Verily, I say unto you, this is the truth.
B2 verb /ˈstræŋɡəl/

strangle

Meaning
to kill or stop someone or something by squeezing the throat or restricting flow
Example
The villain tried to strangle his opponent in the dark alley.
B2 verb /ˈæmplɪˌfaɪ/

amplify

Meaning
to make sounds louder; to make something larger or more significant
Example
The microphone amplifies her voice.
B2 verb /dɪˈfaɪ/

defy

Meaning
to openly resist or refuse to obey someone or something; to challenge or dare someone to do something
Example
The protesters continued to defy the government's ban on public gatherings.
C1 adjective /proʊˈzeɪ.ɪk/

prosaic

Meaning
ordinary, dull, or lacking imagination
Example
The teacher’s explanation was accurate but rather prosaic.
C2 noun /ɪmˈprɑːvɪdəns/

improvidence

Meaning
Lack of foresight or care for future needs.
Example
His improvidence led to financial difficulties.
C2 noun ˈtɛlɪˌmɛtri

telemetry

Meaning
The process of recording and transmitting the readings of an instrument.
Example
The spacecraft transmitted telemetry data back to Earth.
C1 adjective /ˈæmərəs/

amorous

Meaning
Showing, feeling, or relating to romantic love or desire.
Example
He sent her an amorous letter filled with declarations of love.
C1 adjective /ʌnˈtaɪərɪŋ/

Untiring

Meaning
continuing without stopping; persistent; tireless
Example
Her untiring efforts finally led to success.
C1 noun /ˈnɛm.ə.sɪs/

nemesis

Meaning
A long-standing rival or an inescapable agent of downfall.
Example
For years, he considered his colleague to be his nemesis.
B2 noun /ˈtɔːr.ment/

Torment

Meaning
severe physical or mental suffering; extreme pain or anguish
Example
The prisoner endured years of torment in solitary confinement.
C2 noun /voʊˈsɪfərəns/

vociferance

Meaning
the act of shouting or making a loud outcry
Example
The vociferance of the protesters filled the streets.
B1 adjective /təˈrɪfɪk/

terrific

Meaning
extremely good or excellent; very great or intense
Example
The concert last night was absolutely terrific.
B2 verb /blʌʃ/

blush

Meaning
to become red in the face due to embarrassment or shyness
Example
She blushed when he complimented her.
C2 adjective /ˈpɛkəbl/

peccable

Meaning
liable to sin or error; capable of doing wrong
Example
Humans are peccable, but they strive for goodness.
C1 adjective /ˈlɔː.ləs/

Lawless

Meaning
without law; anarchic; unruly; criminal
Example
The frontier town was known for its lawless behavior and chaos.
B1 noun /ˈdɛkeɪd/

decade

Meaning
A period of ten years.
Example
The country has changed a lot in the past decade.
C2 adjective /ˈfrɒlɪksəm/

Frolicsome

Meaning
joyful; playful; merry; cheerful
Example
The frolicsome children laughed and played in the park.
B2 verb /ˈprɒsɪkjuːt/

prosecute

Meaning
to institute legal proceedings against someone
Example
The lawyer decided to prosecute the case after gathering sufficient evidence.
A1 verb /kɔːl/

call

Meaning
to say something loudly; to telephone someone; to name
Example
Please call me when you arrive home.
C1 noun /ˈʃrɪŋkɪdʒ/

shrinkage

Meaning
The process of becoming smaller in size, amount, or value.
Example
The company reported a shrinkage in profits this quarter.
B2 noun ˌrɛzɪɡˈneɪʃən

resignation

Meaning
The acceptance of something undesirable but inevitable; giving up.
Example
Her resignation from the position was unexpected.
C2 adjective /kəˈkɒfənəs/

cacophonous

Meaning
Producing a harsh, discordant mixture of sounds.
Example
The cacophonous sounds of the city kept her awake all night.
B1 adjective /ˌʌndərˈstændəbl/

understandable

Meaning
Able to be understood; reasonable or justifiable.
Example
Her reaction was understandable given the situation.
C2 verb /dɪˈstreɪn/

distrain

Meaning
to seize someone's property in order to obtain payment of rent or other money owed
Example
The landlord distrained the tenant's furniture for unpaid rent.
C2 noun /ˈdɛkəˌɡræm/

decagram

Meaning
A metric unit of mass equal to ten grams.
Example
The package weighed exactly one decagram.
C1 verb /ˈbrændɪʃ/

brandish

Meaning
to wave or flourish something, especially a weapon, in a threatening or showy way
Example
He brandished a sword to scare off the intruders.
B1 noun /ˈsʌn.laɪt/

sunlight

Meaning
Direct light from the sun.
Example
Sunlight does not reach the abyssal depths of the ocean.
B1 noun /frʌˈstreɪʃən/

frustration

Meaning
The feeling of being upset or annoyed due to inability to achieve something.
Example
He felt deep frustration when his plans failed.
A1 noun, verb /rɛst/

rest

Meaning
to cease work or movement in order to relax or recover strength
Example
He needs to rest after the long journey.
C1 verb /ˈpɜːrkəleɪt/

percolate

Meaning
To filter gradually through a porous surface or substance; to spread slowly.
Example
The rainwater percolated through the soil into the groundwater.
B2 noun /ˈɪn.vɔɪs/

Invoice

Meaning
a list of goods sent or services provided, with a statement of the sum due for these
Example
The company sent an invoice for the office supplies delivered last week.
B2 verb /stɪŋ/

sting

Meaning
to pierce with a sharp point; to cause sharp pain
Example
The bee stung him on his arm while he was gardening.
C1 adjective /prɪˈsɪpɪtəs/

precipitous

Meaning
Extremely steep or sudden; done quickly without careful consideration.
Example
The hikers struggled to climb the precipitous slope.
B1 noun /ˈklaɪənt/

client

Meaning
A person or organization using the services of a professional or company.
Example
The lawyer met with her client to discuss the case.
B2 noun /ˈven.juː/

Venue

Meaning
a place where an event or activity takes place
Example
The wedding venue was beautifully decorated.
C2 adjective /ˈæməˌtɔːri/

amatory

Meaning
Relating to or expressing sexual love.
Example
The poet’s verses were filled with amatory themes.
C1 noun /brɪˈɡeɪd/

brigade

Meaning
A large group of people organized for a specific purpose, especially a military unit.
Example
The fire brigade arrived quickly to put out the flames.
C1 adjective ˈsɛd(ə)ntəri

sedentary

Meaning
Characterized by much sitting and little physical activity.
Example
A sedentary lifestyle can lead to numerous health problems.
C1 adjective ɪˈθɪə.ri.əl

ethereal

Meaning
Extremely delicate and light in a way that seems too perfect for this world.
Example
Her voice had an ethereal quality.
B2 adjective /ˈded.li/

Deadly

Meaning
causing or able to cause death; extremely dangerous; lethal
Example
The deadly poison killed the plant instantly.
C2 noun /ˈlæn.sɪt/

lancet

Meaning
a small, sharp, two-edged surgical knife used for making small incisions
Example
The doctor used a lancet to prick the patient’s finger for a blood test.
B2 adverb /ˈwɪl.ɪŋ.li/

Willingly

Meaning
in a willing manner; voluntarily; with free will
Example
She willingly helped her neighbors during the emergency.
B2 verb /ɪmˈpoʊz/

impose

Meaning
to force someone to accept something; to establish or apply by authority
Example
The government imposed new taxes on luxury goods.
C1 noun /ˈproʊtəˌʒeɪ/

protege

Meaning
a person who is guided and supported by an older and more experienced person
Example
The young artist was the protege of a famous painter.
B2 noun /ˌledʒɪsˈleɪʃən/

legislation

Meaning
laws considered collectively, or the act of making laws
Example
The government passed new legislation to protect the environment.
C1 noun ˌdɪs.æmˌbɪɡ.juˈeɪ.ʃən

disambiguation

Meaning
The removal of ambiguity by making something clear and unambiguous.
Example
The AI system applies disambiguation to refine text understanding.
C1 verb /ɪnˈθjuːz/

enthuse

Meaning
to express excitement or admiration
Example
She enthused about her trip to Italy.
B2 noun /dɪˈtɜːrdʒənt/

detergent

Meaning
a substance used for cleaning, especially for washing clothes and dishes
Example
She bought a new brand of detergent for laundry.
A2 verb /ɪɡˈnɔːr/

ignore

Meaning
to refuse to take notice of; to disregard intentionally
Example
She decided to ignore the rude comments.
B2 noun/adjective /ˈvɪntɪdʒ/

vintage

Meaning
Relating to high quality from the past; classic; also the year of a wine harvest.
Example
She wore a vintage dress from the 1950s.
B2 adverb /ˈaʊər.li/

Hourly

Meaning
every hour; happening or done each hour; continuously
Example
The weather report is updated hourly.
B1 noun truː ˌɛdjuˈkeɪʃən

true education

Meaning
Genuine learning that develops both mind and character.
Example
True education builds a noble and beautiful life.
C1 adjective /ˈstrɛnjuəs/

strenuous

Meaning
Requiring or using great effort and energy.
Example
Climbing the mountain was a strenuous task.
B2 noun /ɡreɪn/

Grain

Meaning
wheat or any other cultivated cereal crop used as food; a single seed of a cereal
Example
The farmer stored large quantities of grain in the barn after the harvest.
C2 noun /ˈreɪləri/

raillery

Meaning
good-humored teasing or joking
Example
Their friendship was full of light-hearted raillery.
C2 verb /ˌnɒnˈplʌst/

nonplused

Meaning
Past tense of nonplus; surprised and confused.
Example
She was completely nonplused by his sudden decision.
B2 verb /pərˈsuː/

pursue

Meaning
to follow or chase with the intent to catch or achieve something
Example
She decided to pursue her dreams of becoming a doctor.
A2 noun/verb /ɡraʊnd/

ground

Meaning
the solid surface of the earth; to prohibit someone (often a child) from going out
Example
The children played on the ground near the house.
C1 adjective kənˈkɝː.ənt

concurrent

Meaning
Existing, happening, or done at the same time.
Example
The conference had concurrent sessions on various topics.
C1 verb /əˈkrɛdɪt/

accredit

Meaning
to officially recognize, authorize, or approve someone or something
Example
The university is accredited by the national education board.
C2 noun /ˌɔːrnɪˈθɒlədʒɪst/

ornithologist

Meaning
a scientist who studies birds
Example
The ornithologist spent years studying migratory birds.
B2 noun /ˈeɪlmənt/

ailment

Meaning
An illness, typically a minor one.
Example
He went to the doctor for a minor stomach ailment.
B2 noun /ɪnˈsaɪdə/

insider

Meaning
a person within a group or organization who has access to confidential information
Example
He was an insider who knew all the company's secrets.
C1 verb /ˈstɪɡmətaɪz/

stigmatize

Meaning
to describe or regard someone as worthy of disgrace or disapproval
Example
People with certain illnesses are often unfairly stigmatized.
B2 noun /ˌɒpəˈzɪʃən/

opposition

Meaning
the action of opposing or resisting something
Example
The opposition to the new law was strong.
A2 noun /spiːtʃ/

Speech

Meaning
formal address or discourse delivered to an audience; the expression of thoughts in spoken words
Example
The president gave an inspiring speech to the nation.
A2 noun /trʌk/

truck

Meaning
a large motor vehicle for transporting goods
Example
The truck was loaded with boxes for the warehouse.
C1 noun /ˈɛskəpeɪd/

escapade

Meaning
an adventurous, exciting, or reckless act
Example
Their summer escapade included camping and mountain climbing.
C1 adjective ˌsɪn.əˈdʒɪs.tɪk

synergistic

Meaning
Relating to the interaction of elements that when combined produce a greater effect than the sum of their individual effects.
Example
A synergistic effect occurs when nutrients work together.
C2 noun /ˈrʊkəri/

rookery

Meaning
a place where rooks or other birds breed and nest in colonies
Example
We saw a rookery full of noisy birds near the forest.
C2 verb /ˈɛkskʌlpeɪt/

exculpate

Meaning
to show or declare that someone is not guilty of wrongdoing
Example
The lawyer worked hard to exculpate his client.
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.
B2 adjective /ˈtʃær.ɪ.tə.bəl/

Charitable

Meaning
generous in giving to those in need; showing kindness
Example
She is known for her charitable work in the community.
B2 adjective /ˈæfluənt/

affluent

Meaning
having a great deal of money; wealthy
Example
She grew up in an affluent neighborhood.
C1 noun /ˌpriːməˈnɪʃən/ or /ˌprɛm-/

premonition

Meaning
a strong feeling that something is about to happen, often something negative
Example
She had a premonition of danger before the trip.
B1 adjective /kənˈsɪdərəbl/

considerable

Meaning
large in amount, size, or importance
Example
The project required a considerable amount of time and money.
B2 adjective /ˈles.ər/

Lesser

Meaning
smaller in amount; of lower importance; inferior
Example
He chose the lesser of two evils when making his decision.
C2 adjective /ˈlæk.ti.əl/

lacteal

Meaning
Relating to or resembling milk; conveying chyle or milky fluid.
Example
The lacteal vessels in the small intestine absorb dietary fats.
B2 noun /iːz/

Ease

Meaning
absence of difficulty or effort; comfort and relaxation
Example
After years of practice, she played the piano with great ease.
B1 noun /ˈbluː.ber.i/

Blueberry

Meaning
a small round blue fruit that grows on bushes
Example
She picked fresh blueberries for the pie.
A1 noun /ˈmjuːzɪk/

music

Meaning
vocal or instrumental sounds combined to produce harmony, melody, or rhythm
Example
She loves listening to classical music.
C1 noun /ˈskep.tɪ.sɪ.zəm/

skepticism

Meaning
A skeptical attitude; doubt as to the truth of something.
Example
His skepticism about new technology often makes him resistant to change.
C1 verb /dɪˈvɒlv/

devolve

Meaning
To pass power, responsibility, or duties to another person or group.
Example
The responsibility will devolve on the new manager.
A2 noun ˈkwɒl.ɪ.ti

quality

Meaning
The standard of something as measured against other things of a similar kind; the degree of excellence of something.
Example
Quality assurance is vital in medical education.
A2 noun ˈliːdər

leader

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

hydrodynamics

Meaning
The branch of science concerned with the motion of fluids, especially liquids, and the forces acting on solid bodies immersed in fluids.
Example
Hydrodynamics is essential in designing efficient ship hulls.
C1 noun /ˈdɛməɡɒɡ/

demagogue

Meaning
A political leader who seeks support by appealing to popular desires and prejudices rather than by using rational argument.
Example
The crowd was swayed by the fiery speeches of the demagogue.
B2 adjective /ˈstɛdi/

steady

Meaning
firm, stable, and not likely to change suddenly
Example
He kept his hand steady while painting the picture.
C1 adjective /ɪɡˈzuːbərənt/

exuberant

Meaning
full of energy, excitement, and cheerfulness
Example
The children were exuberant after winning the game.
A2 noun /bɪl/

Bill

Meaning
the beak of a bird, especially when it is broad and flat
Example
The duck used its bill to filter food from the water.
C2 adjective /dɪˈspjuːtəbl/

Disputable

Meaning
open to debate or argument; questionable
Example
The facts in the case are disputable and need further investigation.
B2 verb /ɪnˈdʌldʒ/

indulge

Meaning
to allow oneself to enjoy something enjoyable, often excessively
Example
He indulged in a piece of chocolate cake after dinner.
C1 noun /ˈmeɪniə/

Mania

Meaning
Mental illness marked by periods of great excitement; extreme enthusiasm
Example
She had a mania for collecting vintage postcards from around the world.
C2 noun /ˈdʒaɪər/

gyre

Meaning
A circular or spiral motion or form, especially a giant circular oceanic surface current.
Example
The Great Pacific Garbage Patch is trapped in a gyre.
B2 adjective /ˌɔːɡənaɪˈzeɪʃənəl/

organizational

Meaning
relating to the structure or arrangement of a company or group
Example
He works on improving the organizational structure of the company.
B1 noun /ˈprɪzənər/

prisoner

Meaning
a person who is in prison
Example
The prisoner was granted parole after serving 10 years.
C2 noun əˌten.juˈeɪ.ʃən

attenuation

Meaning
The reduction of the force, effect, or value of something.
Example
The attenuation of sound waves affects communication.
C2 verb /beɪst/

baste

Meaning
to pour or brush melted fat, juices, or liquid over meat during cooking to keep it moist
Example
She basted the turkey every 30 minutes to keep it juicy.
C1 noun /ˌædʒ.ɪˈteɪ.ʃən/

agitation

Meaning
a state of nervousness, excitement, or unrest; or action of stirring up public concern
Example
There was visible agitation among the crowd.
A1 pronoun/noun /lɒts/

lots

Meaning
A large number or amount of something.
Example
She has lots of friends in the city.
B2 noun /ˈfreɪ.ɡrəns/

Fragrance

Meaning
a pleasant, sweet smell; a perfume or cologne
Example
The fragrance of jasmine flowers filled the entire garden in the evening.
A2 adjective, noun /tʃaɪˈniːz/

chinese

Meaning
relating to China, its people, or its language
Example
We went to a Chinese restaurant last night.
C1 noun /ˌmænɪˈfɛstoʊ/

manifesto

Meaning
a public declaration of policy and aims, especially by a political party
Example
The party released its manifesto before the election.
A2 verb /noʊt/

note

Meaning
to write down or observe something; to pay attention to
Example
Please note the important points during the lecture.
C1 noun /ˈkoʊhɔːrts/

cohorts

Meaning
Groups of people who share a common feature or experience.
Example
Researchers compared the health outcomes of different cohorts.
B1 noun /ˈɑb.stə.kəl/

Obstacle

Meaning
something that blocks or makes progress difficult; a barrier
Example
Bad weather was the main obstacle to our journey.
C2 noun /priˈɛmpʃən/

preemption

Meaning
The act of taking action before someone else; the right to purchase or act before others.
Example
The company exercised preemption to acquire the land before competitors.
C2 noun /ˈbrɛviˌɛri/

breviary

Meaning
A book containing the service for each day, used in Christian liturgy.
Example
The monk read from the breviary during morning prayers.