observatory
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C1 noun /əbˈzɜːrvətɔːri/

observatory

Meaning
A building equipped for observing astronomical or meteorological events.
Example
The observatory is open to the public on weekends.
C1 verb /ˈpɜːrsɪkjuːt/

persecute

Meaning
to treat someone cruelly or unfairly, especially because of their religion, race, or beliefs
Example
Many people were persecuted for their faith during that time.
C2 noun /dəˈkɔɪt/

Dacoit

Meaning
a member of an armed gang of robbers; a bandit, especially in India and Myanmar
Example
The village was terrorized by a gang of dacoits who robbed travelers.
C2 noun /ˈproʊtoʊˌplæzəm/

protoplasm

Meaning
The living substance inside a cell, including the cytoplasm and nucleus.
Example
Scientists observed the movement of protoplasm under the microscope.
B1 adjective /əkˈsɛptəbəl/

acceptable

Meaning
able to be agreed upon; satisfactory or suitable
Example
Your proposal is acceptable to the committee.
B2 adjective /ʌnˈdʒʌst/

Unjust

Meaning
not fair or right; morally wrong
Example
The punishment was unjust for such a minor offense.
B1 noun /ˈtæblət/

tablet

Meaning
a small flat computer or a small solid dose of medicine
Example
She took a tablet to relieve her headache.
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 verb /əˈtoʊn/

atone

Meaning
to make amends for a wrong or injury; to make reparation
Example
He tried to atone for his mistakes by helping others.
C1 noun /ˌɛkstrəˈdɪʃən/

extradition

Meaning
the official process of sending someone accused of a crime to another country or state
Example
The extradition of the suspect was delayed due to legal issues.
A1 verb /miːt/

meet

Meaning
to come into the presence of; to encounter
Example
I will meet you at the café.
C2 noun /kɒŋk/

Conck

Meaning
a shell, especially a large spiral one used as a horn or for decoration
Example
The priest blew the conch shell to signal the start of the ceremony.
B2 adjective /ˈkwɔːrtərli/

Quarterly

Meaning
occurring every three months; relating to a quarter of a year
Example
The company publishes quarterly reports to shareholders.
C2 noun /bəˈnæləti/

banality

Meaning
The condition of being unoriginal, boring, or obvious; trite remark or quality.
Example
The speech was criticized for its banality and lack of originality.
B2 noun /prɪˈtens/

Pretence

Meaning
an attempt to make something that is not the case appear true
Example
He made no pretence of being interested in the conversation.
C1 noun /ɪnˈsɜːrdʒənt/

insurgent

Meaning
A person who rises in revolt against authority or government.
Example
The army arrested several insurgents after the attack.
A1 noun /kiːp/

Keep

Meaning
food and other things necessary for living; the strongest part of a castle
Example
He worked hard to earn his keep and support his family.
B2 noun /ˈkʌmbæk/

comeback

Meaning
A return to a former status or success after a period of decline.
Example
The singer made a remarkable comeback after years of silence.
B1 noun /ˈpoʊ.lər beər/

Polar Bear

Meaning
a large white bear that lives in the Arctic regions
Example
The polar bear swims in the icy Arctic waters.
C2 noun /ˌdɛd ˈhiːt/

dead-heat

Meaning
a race or contest in which two or more competitors finish exactly equal
Example
The race ended in a dead-heat between the two runners.
C2 verb /kənˈvoʊk/

convoke

Meaning
to call together or summon a meeting or assembly
Example
The committee convoked an emergency session to discuss the crisis.
B1 noun /tɜːmz/

terms

Meaning
plural of term; conditions or rules in a contract or agreement
Example
The terms of the agreement are clearly outlined in the contract.
C2 noun /ˈfɛndər/

fender

Meaning
a part of a vehicle that frames a wheel well to protect against mud or debris
Example
The car's fender was dented in the accident.
C1 adjective /ˌɪrɪˈvɜːrsəbl/

irreversible

Meaning
Not able to be undone, changed, or reversed.
Example
The damage caused by the fire was irreversible.
C1 adjective /ˈkræfti/

crafty

Meaning
skilled at achieving goals through cunning or deceit; sly
Example
The crafty fox evaded the hunters again.
C2 noun /rɪˈpoʊst/

riposte

Meaning
a quick and clever reply to criticism or an insult
Example
Her sharp riposte left everyone in silence.
C1 adjective /ɪnˈsɒlvənt/

insolvent

Meaning
unable to pay debts owed
Example
The insolvent firm could not meet its financial obligations.
C2 verb /pɜːrl/

purl

Meaning
To knit with a purl stitch; to flow with a murmuring sound (as a stream).
Example
The brook purled softly through the meadow.
A2 noun /niː/

Knee

Meaning
the joint connecting the thigh and the lower leg in humans
Example
He fell and scraped his knee on the pavement.
B2 verb /blɜːr/

blur

Meaning
to make something unclear or difficult to see
Example
Tears blurred her vision.
B2 noun /pəˈræmɪtər/

parameter

Meaning
a limit, boundary, or measurable factor that defines or determines something
Example
We need to set clear parameters for this project.
B1 noun /kəmˈpænjən/

companion

Meaning
a person or animal you spend time with or travel with
Example
He was my companion during the long journey.
C2 noun /ˌɪnkænˈdɛsəns/

incandescence

Meaning
the emission of light from a hot object; brilliance
Example
The incandescence of the candle filled the dark room.
C1 noun /ˌdiːpɔːrˈteɪʃən/

deportation

Meaning
The act of expelling a foreigner from a country.
Example
The deportation of hundreds of workers sparked international criticism.
B2 adjective /səkˈsɛsɪv/

Successive

Meaning
following one after the other in order; consecutive
Example
The team won three successive matches.
C2 adjective /ɪnˈklɛmɛnt/

inclement

Meaning
unpleasantly cold, wet, or stormy (usually weather)
Example
The match was canceled due to inclement weather.
B2 noun /ˈpærɪʃ/

parish

Meaning
A local church community or the area served by a parish church.
Example
The parish gathered for Sunday service.
A1 adjective, adverb, pronoun /mɔːr/

more

Meaning
A greater or additional amount or degree.
Example
She wanted more time to finish the project.
A1 adverb /noʊ/

no

Meaning
used to give a negative response or to show disagreement
Example
She said no to the invitation.
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.
B1 adverb /ˈkɒmənli/

commonly

Meaning
usually or by most people
Example
This phrase is commonly used in everyday speech.
C2 adjective /sæŋˈɡwɪniəs/

sanguineous

Meaning
Relating to blood; bloody.
Example
The surgeon examined the sanguineous discharge from the wound.
C1 verb /ˈræn.də.maɪz/

randomize

Meaning
To make something happen in a random order or manner.
Example
The software can randomize the order of questions.
C2 verb /flɛdʒ/

fledge

Meaning
To develop wing feathers large enough for flight; to bring up until able to fly.
Example
The young birds will fledge in a few weeks.
B2 noun /ˈrɪŋkəl/

Wrinkle

Meaning
a small line or fold in something, especially fabric or skin; a crease
Example
She noticed a few wrinkles around her eyes.
C2 noun /əˈluː.vi.əm/

alluvium

Meaning
Fertile soil deposited by flowing water, especially in riverbanks.
Example
The alluvium in riverbanks is highly fertile for agriculture.
C1 noun /rɪˈkluːs/

recluse

Meaning
A person who lives alone and avoids other people; someone who lives a solitary life.
Example
The old man lived as a recluse in the mountains.
B2 adjective /blænd/

bland

Meaning
lacking strong features, flavor, or character; dull or uninteresting
Example
The soup was too bland for my taste.
B2 adjective ˈpeɪn.ləs

painless

Meaning
Not causing pain; involving little effort or stress.
Example
Modern methods ensure painless treatment.
C2 noun /ɪˈluːʒən/

elusion

Meaning
The act of escaping or avoiding something, especially by cleverness or trickery.
Example
His constant elusion of responsibility frustrated his colleagues.
A2 noun /fæt/

Fat

Meaning
a natural oily substance occurring in animal bodies; lipid used in cooking
Example
Too much fat in your diet can be unhealthy.
C2 noun /ˈdɛsɪkənt/

desiccant

Meaning
a substance that absorbs moisture and keeps things dry
Example
Silica gel packets are commonly used as a desiccant in packaging.
C1 verb ɪɡˈzæsərbeɪt

exacerbate

Meaning
To make a problem, bad situation, or negative feeling worse.
Example
Climate change exacerbates flooding issues.
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 adjective /ˈloʊli/

lowly

Meaning
humble in status, position, or manner
Example
She rose from a lowly position to become the company's CEO.
B2 verb /reɪp/

rape

Meaning
to force someone to have sexual intercourse without their consent
Example
The law strictly punishes those who commit rape.
B2 noun /wɔːrd/

ward

Meaning
A separate room in a hospital for patients; also a division of a city or a person under guardianship.
Example
She was admitted to the children's ward.
B2 noun /ˈpɪm.pəl/

Pimple

Meaning
a small, inflamed elevation of the skin; a spot on the skin, especially on the face
Example
She was embarrassed about the pimple on her forehead.
C1 adjective /əˈbaɪdɪŋ/

abiding

Meaning
lasting for a long time; enduring
Example
She had an abiding love for her hometown.
B1 noun /ˈlʌk.ʃər.i/

Luxury

Meaning
the state of great comfort and extravagant living; an inessential, desirable item that is expensive or difficult to obtain
Example
They enjoyed the luxury of a five-star hotel.
C2 verb /ʌnˈkaʊtʃ/

uncouch

Meaning
to remove from a couch or to release from being laid down (rare/archaic usage)
Example
The surgeon attempted to uncouch the cataract.
C2 noun /ˈθrɛnədi/

threnody

Meaning
A song, poem, or speech of mourning for someone who has died; a lament.
Example
The poet composed a moving threnody for the fallen soldiers.
C2 adjective /ˈtɛnɪbrəs/

tenebrous

Meaning
dark, shadowy, or obscure
Example
The cave was damp and tenebrous, filled with eerie sounds.
C1 adjective /ˈdjuːtɪfəl/

Dutiful

Meaning
conscientiously fulfilling one's duty; obedient; respectful
Example
She is a dutiful daughter who always helps her parents.
B2 verb /plaʊ/

plough

Meaning
to break up and turn over soil using a plough; to move through something with difficulty
Example
The farmer ploughs the field every spring.
B2 adjective/noun ˌdem.əˈɡræf.ɪk

demographic

Meaning
Relating to the structure of populations; statistical data relating to the population and particular groups within it.
Example
The company analyzes demographic trends before launching a product.
B2 noun /'ræd.ɪʃ/

Radish

Meaning
a small pungent edible root vegetable with white or red skin
Example
The farmer harvested fresh radishes from the garden.
B2 noun ˈdɪdʒɪtəl ˈfɔːrmæt

Digital Format

Meaning
A format in which information is stored as electronic data.
Example
A digital format family tree can be shared online.
B2 noun /ˈfɪʃ.ɪŋ/

phishing

Meaning
The fraudulent practice of sending emails purporting to be from reputable companies in order to induce individuals to reveal personal information.
Example
Phishing emails often trick people into revealing passwords.
C2 verb /ˈmɒtl/

mottle

Meaning
To mark with spots or patches of color.
Example
The leaves were mottled with shades of yellow and brown.
B2 noun rɪˈzɪl.i.əns

resilience

Meaning
The ability to recover quickly from difficulties; toughness.
Example
Testing the resilience of wood is crucial.
C1 adjective /ˈdɑːsəl/ or /ˈdəʊsaɪl/

docile

Meaning
easily managed, taught, or controlled; submissive
Example
The docile puppy quickly learned new tricks.
B2 adjective /əˈpiː.lɪŋ/

Appealing

Meaning
attractive; interesting; pleasing
Example
The colorful garden looks very appealing to visitors.
B1 adjective /ɪnˈtɜːrnəl/

internal

Meaning
situated inside; relating to the inside or inner part of something
Example
The company is conducting an internal audit this month.
B2 noun /ˈlep.ərd/

Leopard

Meaning
a large wild cat with yellow fur and black spots
Example
The leopard climbed the tree to rest in the shade.
B2 noun /rɪˈfɔːr.mər/

Reformer

Meaning
a person who works to bring about positive changes in society or institutions
Example
The social reformer dedicated her life to improving education for all children.
C1 adjective /rɪˈpʌɡ.nənt/

Repugnant

Meaning
extremely distasteful; unacceptable; causing disgust or strong dislike
Example
The idea of lying to his parents was repugnant to him.
C1 noun/verb /tɔːrˈpiːdoʊ/

torpedo

Meaning
A self-propelled underwater missile; to attack or destroy something suddenly and forcefully.
Example
The submarine launched a torpedo at the enemy ship.
C1 noun/verb /ˈbæntər/

banter

Meaning
playful and friendly exchange of teasing remarks
Example
The colleagues enjoyed some light banter during the meeting.
B2 adjective /ˌpoʊstˈwɔːr/

post-war

Meaning
relating to the period after a war has ended
Example
The country experienced rapid economic growth in the post-war years.
A2 adverb /jet/

Yet

Meaning
up to now or a specified time; still; however; nevertheless
Example
He hasn't finished his homework yet.
B2 adjective /proʊn/

Prone

Meaning
having a tendency to; inclined; lying face down
Example
He is prone to making mistakes when he's tired.
B1 noun /ˈfʌŋkʃən/

function

Meaning
An activity or purpose natural to or intended for a person or thing.
Example
The main function of the heart is to pump blood.
C2 adjective /ˌsɒpəˈrɪfɪk/

soporific

Meaning
tending to induce drowsiness or sleep; causing sleepiness
Example
The professor's lecture was so soporific that half the class fell asleep.
C1 verb /mɑːr/

mar

Meaning
to spoil or damage the appearance or quality of something
Example
The scratch will mar the beauty of the painting.
C2 verb /ˈvɪvɪfaɪ/

vivify

Meaning
to give life or energy to something; to animate or enliven
Example
The teacher’s enthusiasm helped vivify the boring lecture.
C1 noun /stɪˈlɛtoʊ/

stiletto

Meaning
A small, thin, high-heeled shoe or a dagger with a slender blade.
Example
She wore elegant stiletto heels to the party.
B1 adjective /rɪˈmeɪnɪŋ/

remaining

Meaning
still existing or left after others are gone or dealt with
Example
There were only a few remaining tickets for the concert.
C2 noun /pəˈlæv.ər/

palaver

Meaning
prolonged and idle discussion; fuss or unnecessary talk
Example
After much palaver, they finally agreed on the plan.
C1 verb /dɪsˈɑːrm/

disarm

Meaning
to take weapons away from someone; to make someone feel less hostile
Example
The soldiers were ordered to disarm the rebels.
C2 verb /ˈdʒɛsteɪt/

gestate

Meaning
to carry and develop in the womb during pregnancy; to develop an idea over a period of time
Example
The mother whale gestates her calf for over a year.
C1 noun /ˈʌp.raɪt.nəs/

Uprightness

Meaning
the quality of being honest and morally correct; integrity
Example
His uprightness in business dealings earned him great respect.
A2 noun /ˈtræfɪk/

traffic

Meaning
movement of vehicles, goods, or people
Example
There was heavy traffic on the highway this morning.
B2 noun ˈsɛv.ən ˈwʌn.dərz

Seven Wonders

Meaning
The seven most remarkable and famous structures in the world, representing architectural feats and cultural significance.
Example
The Seven Wonders of the world reflect human brilliance.
B2 noun /kəˈlɛstərɒl/

cholesterol

Meaning
a fatty substance found in the blood, high levels of which can cause health problems
Example
High cholesterol can increase the risk of heart disease.
C1 verb /ɪkˈstɪŋ.ɡwɪʃ/

extinguish

Meaning
to put out a fire, light, or to end something
Example
The firefighters managed to extinguish the blaze within an hour.
B2 adjective /ʌnˈrɪəl/

unreal

Meaning
not real or not based on reality; exaggerated or imaginary
Example
The experience felt unreal after the sudden news.
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 verb, noun /ɡɔːrdʒ/

gorge

Meaning
to eat greedily; a narrow valley between mountains or hills
Example
They gorged themselves on pizza after the hike.
C1 adjective /dɪsˈɪntrəstɪd/

disinterested

Meaning
not influenced by personal interest; impartial or neutral
Example
The judge remained disinterested in the case.
C1 noun /rəʊˈbɒt.ɪk ˈsɜː.dʒər.i/

robotic surgery

Meaning
Surgery performed with the assistance of robotic systems to enhance precision and reduce invasiveness.
Example
Robotic surgery enhances precision in complex procedures.
C1 verb ɪˈluːd

elude

Meaning
Evade or escape from, typically in a skillful or cunning way; avoid being caught.
Example
The thief managed to elude the police.
C1 noun /ˈsæf.rən/

Saffron

Meaning
a deep yellow-orange color; an expensive spice derived from crocus flowers
Example
The saffron fabric looked beautiful in the sunlight.
C2 noun /ˈɛksplətɪv/

expletive

Meaning
a word or phrase used as an exclamation, often offensive or profane
Example
He shouted an expletive when he dropped the hammer on his foot.
A2 adjective /pliːzd/

pleased

Meaning
feeling happy or satisfied with something
Example
She was pleased with her exam results.
C1 adjective/verb /ˈprɒstreɪt/

prostrate

Meaning
lying stretched out on the ground with one's face downward, often as a sign of submission or exhaustion
Example
He lay prostrate on the ground after the long battle.
A1 noun /ˈʃʊɡər/

Sugar

Meaning
sweet crystalline substance used as a sweetener
Example
Please add two teaspoons of sugar to my coffee.
A2 verb /əˈreɪndʒ/

arrange

Meaning
to organize or put in order; to plan or prepare
Example
She arranged the flowers in a vase.
C1 noun, adjective, verb /ʃæm/

sham

Meaning
something that is not what it appears to be; a false or fake thing; to pretend
Example
The deal turned out to be a sham.
B2 verb /ˈæmplɪˌfaɪ/

amplify

Meaning
to make sounds louder; to make something larger or more significant
Example
The microphone amplifies her voice.
C1 noun ˌhaɪ.drəˈlɒdʒ.ɪ.kəl ˈsaɪ.kəl

hydrological cycle

Meaning
The cycle of processes by which water circulates between the earth's oceans, atmosphere, and land.
Example
The hydrological cycle ensures continuous water movement in nature.
C1 noun /ˈvænɡɑːrd/

vanguard

Meaning
the forefront of an action, movement, or military force
Example
The company is at the vanguard of technological innovation.
C1 noun /ˈsæl.mən fɪʃ / ˈroʊ.huː/

Salmon fish / Rohu

Meaning
a freshwater fish popular in South Asian cuisine; also refers to salmon which is a different species
Example
Rohu fish is commonly prepared with spices in Bengali households.
C1 adjective ˌɪn.krəˈmen.təl

incremental

Meaning
Relating to or denoting an increase or addition, especially one of a series on a fixed scale; proceeding in small stages.
Example
Incremental changes ensure sustainability.
C1 phrase ˌdɪp.ləˈmæt.ɪk rɛz.əˈluː.ʃən

diplomatic resolution

Meaning
A peaceful solution to conflicts through negotiation and diplomatic channels.
Example
A diplomatic resolution is necessary for peace.
B1 noun /ˈtʌnəl/

tunnel

Meaning
an underground passage or shaft
Example
They dug a tunnel under the river.
C2 noun /rɪˈdʒɔɪndər/

rejoinder

Meaning
a quick or witty reply; a response to a remark or argument
Example
His sharp rejoinder silenced the crowd.
B2 noun /ˈlɒbi/

lobby

Meaning
a large open area near the entrance of a building; also a group trying to influence decisions.
Example
We met the manager in the hotel lobby before the meeting.
A1 adverb /ˈɔːfən/

often

Meaning
frequently, many times
Example
I often visit my grandparents on weekends.
A2 noun /ˈkæb.ɪdʒ/

Cabbage

Meaning
a cultivated plant eaten as a vegetable, having thick green or purple leaves surrounding a spherical heart
Example
She chopped the fresh cabbage to make coleslaw for dinner.
B1 adjective /ˈdʒɛnjʊɪn/

genuine

Meaning
real and authentic; not fake or artificial
Example
This is a genuine leather bag.