proliferate
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C1 verb /prəˈlɪf.ə.reɪt/

proliferate

Meaning
To increase rapidly in numbers; to grow or spread quickly and extensively.
Example
Startups tend to proliferate in a thriving economy.
C1 adjective /ˌaʊt əv ðə ˈweɪ/

out-of-the-way

Meaning
remote or unusual; not in a convenient or usual location
Example
They stayed in an out-of-the-way village.
C1 noun /ˈtoʊtəm/

totem

Meaning
A natural object, animal, or symbol that is revered as a spiritual emblem by a group or tribe.
Example
The eagle is considered a sacred totem in many cultures.
B2 noun /den/

Den

Meaning
a wild animal's lair or home; a small, comfortable room; a place for illegal activities
Example
The fox disappeared into its den when it sensed danger approaching.
B2 adjective /lɑːrdʒ skeɪl/

large-scale

Meaning
involving a large number or quantity, or covering a large area
Example
The company is planning a large-scale expansion into international markets.
A2 verb /daɪ/

die

Meaning
to stop living; to cease to exist
Example
The flowers will die without water.
B2 noun, verb /ræŋks/

ranks

Meaning
Positions within a group, especially in a hierarchy or organization.
Example
He quickly moved up the ranks of the army.
C1 noun /ˈfren.zi/

Frenzy

Meaning
a state or period of uncontrolled excitement or wild behavior; intense activity
Example
The announcement of the sale created a shopping frenzy at the mall.
C1 noun /ˈɔːrdɪnəns/

ordinance

Meaning
An authoritative rule, law, or decree issued by a city, town, or authority.
Example
The city council passed an ordinance banning smoking in public parks.
C2 noun /ˌɪn.təˈvɛn.ʃə.nɪ.zəm/

interventionism

Meaning
Government policy of active involvement in economic affairs.
Example
The central bank's interventionism helped stabilize inflation.
C2 noun /ˈhækəlz/

hackles

Meaning
the hairs on the back of an animal’s neck that rise when it is angry or alarmed; figuratively, feelings of anger or resentment
Example
His rude comment raised my hackles.
C2 noun /nəˈkrɒpəlɪs/

necropolis

Meaning
a large ancient cemetery with elaborate tombs
Example
The archaeologists discovered artifacts in the necropolis of the ancient city.
C1 noun /ˈviːəməns/

Vehemence

Meaning
great forcefulness or intensity of feeling or expression; passionate conviction
Example
He argued with such vehemence that everyone was surprised.
B1 verb /briːð/

breathe

Meaning
To take air into the lungs and send it out again.
Example
It was hard to breathe in the smoky room.
B1 noun /ˈfaɪ.tər/

Fighter

Meaning
a military aircraft designed for attacking other aircraft; a person who fights
Example
The fighter jet flew overhead during the military parade.
B1 noun /əˈkaʊntənt/

accountant

Meaning
a person whose job is to keep or check financial accounts
Example
The accountant prepared the financial reports for the company.
B2 noun /trænzˈmɪʃən/

transmission

Meaning
the act of sending, passing, or spreading something such as information, energy, or disease
Example
The transmission of data over the internet is very fast.
C2 noun /ˈæpəfθɛm/

apophthegm

Meaning
A short, pithy, and instructive saying or maxim.
Example
She always had a witty apophthegm to share at meetings.
C2 adjective /ɪnˈkoʊ.ɪt/ or /ɪnˈkoʊ.eɪt/

inchoate

Meaning
Just begun and not fully formed; rudimentary.
Example
His inchoate ideas needed more research to be developed.
A1 noun /ˈkwes.tʃən/

Question

Meaning
a sentence asking for information or a response; an interrogative expression
Example
The teacher asked a difficult question during the exam.
C1 adjective /dɪˈsɜːrnəbl/

discernible

Meaning
able to be seen, recognized, or understood
Example
There was a discernible change in his behavior.
A2 noun /hɒt drɪŋk/

Hot-drink

Meaning
a warm or heated beverage consumed for refreshment or comfort
Example
I prefer a hot drink like tea or coffee in the morning.
A2 adjective /ˈfɔːrməl/

formal

Meaning
done in accordance with rules of convention or etiquette; official or serious in nature
Example
He wore a formal suit to the wedding.
B2 noun, verb /ˈdeɪ.bjuː/

debut

Meaning
The first public appearance or performance of someone or something.
Example
The young actor made his debut on the big stage.
A2 noun /ˈkæm.əl/

Camel

Meaning
a large animal with one or two humps on its back that lives in hot dry places
Example
The camel walked slowly across the desert sand.
C2 noun /bəˈfuːnəri/

buffoonery

Meaning
Foolish or ridiculous behavior intended to amuse.
Example
His constant buffoonery irritated the serious audience.
A2 adjective /ˈsɛvrəl/

several

Meaning
more than one but not many; a few
Example
Several people attended the meeting yesterday.
B1 adverb /ˈkloʊsli/

closely

Meaning
in a way that is very near in space, time, or relationship; carefully and attentively
Example
The detective examined the evidence closely.
A2 noun /ˈbætəri/

battery

Meaning
A device that stores and provides electrical energy; also refers to a group of similar things or repeated blows.
Example
The phone battery ran out after a long day.
C1 adjective /ɪˈnɒkjuəs/

innocuous

Meaning
Not harmful or offensive.
Example
His remark was completely innocuous and not meant to offend anyone.
C1 noun /fɪˈdɛl.ɪ.ti/

fidelity

Meaning
Faithfulness to a person, cause, or belief, demonstrated by continuing loyalty and support.
Example
A dog's fidelity to its owner is unmatched.
C1 noun /peɪˈiː/

payee

Meaning
A person to whom money is paid or is to be paid.
Example
The payee must sign the check before cashing it.
C1 noun /ˈaʊtˌɡroʊθ/

outgrowth

Meaning
something that grows out of something else; a natural development or result
Example
The new policy was an outgrowth of years of debate.
C2 noun /lɒx/ or /lɒk/

lough

Meaning
An Irish or Scottish word for a lake or sea inlet.
Example
The fishermen lived by the lough for generations.
C2 adjective /ˌɪnkəmˈprɛsəbl/

incompressible

Meaning
Not able to be pressed or squeezed into a smaller space.
Example
Liquids are generally considered incompressible.
C2 noun /ˌmɛtəfɪˈzɪʃən/

metaphysician

Meaning
A person who studies or is an expert in metaphysics.
Example
The metaphysician debated the essence of reality with his peers.
A1 noun /flɔːr/

floor

Meaning
the lower surface of a room, on which one may walk
Example
The floor was covered with a soft carpet.
C1 adjective /əbˈstrʌk.tɪv/

Obstructive

Meaning
deliberately creating difficulties or preventing progress; hindering or blocking something
Example
The obstructive policies hindered economic growth.
C2 verb /ˈwaŋɡl/

wangle

Meaning
To achieve something by clever or sometimes dishonest persuasion or trickery.
Example
He wangled a free ticket to the concert.
B2 noun/verb /kəˈmjuː.tɪŋ/

commuting

Meaning
Regular travel to and from workplace, daily journey for work.
Example
He spends two hours commuting to work every day.
C2 verb /əˈdjuːs/

adduce

Meaning
To provide evidence or reasons to support an argument or idea.
Example
The lawyer adduced several examples to support his case.
A2 noun /ˈfiːtʃər/

feature

Meaning
a distinctive attribute or aspect of something; a characteristic
Example
The new phone has a unique camera feature.
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 verb /əˈbaɪd/

abide

Meaning
to accept or act in accordance with; to endure; to dwell
Example
I will abide by the rules of the company.
C1 noun /ˈdɑː.mə.saɪl/

domicile

Meaning
A person's legal residence or permanent home.
Example
He declared Canada as his legal domicile.
B2 noun /mjuːl/

Mule

Meaning
the offspring of a donkey and a horse, used as a working animal
Example
The farmer used a mule to carry heavy loads.
C2 noun /ˈɑːriə/

aria

Meaning
a solo vocal piece with instrumental accompaniment, typically in an opera
Example
The soprano performed a moving aria during the second act.
B2 adverb /ɪkˈstɜrnəli/

externally

Meaning
in a way that relates to the outer surface or outside appearance
Example
The building appeared externally modern, but inside it was quite old-fashioned.
B2 noun /ˈɑːr.tɪ.zən/

Artison

Meaning
a skilled craftsperson who makes things by hand
Example
The artisan created a beautiful wooden sculpture.
A1 noun /fʊt/

Foot

Meaning
the lower extremity of the leg that is in direct contact with the ground in standing or walking
Example
She hurt her foot while running.
B1 noun/verb /hɪnt/

hint

Meaning
a small piece of advice or suggestion; to suggest something indirectly
Example
She gave me a hint about the surprise party.
C2 noun /mjuːz/

mews

Meaning
A row or street of houses or apartments that have been converted from stables or built to look like former stables.
Example
They rented a small flat in a quiet London mews.
C1 noun /ˈɑːlɪˌɡɑːrki/

oligarchy

Meaning
A small group of people having control of a country, organization, or institution.
Example
The nation was ruled by a wealthy oligarchy that controlled all resources.
C2 adjective /kwɪkˈsɑː.t̬ɪk/

quixotic

Meaning
Extremely idealistic, unrealistic, and impractical.
Example
His quixotic dreams often led to disappointment.
A2 adjective /sɪksθ/

sixth

Meaning
coming after the fifth in order, position, or rank
Example
He finished the race in sixth place.
C1 adjective /ɡlʌm/

Glum

Meaning
sad; dejected; downcast; gloomy
Example
He looked glum after hearing the bad news.
B1 noun /ˈdʒʌdʒ.mənt/

Judgement

Meaning
the ability to make considered decisions or form sensible opinions; an official decision made by a judge or court
Example
The jury's judgement was based on careful consideration of all the facts.
C2 adjective əˈsɪd.ju.əs

assiduous

Meaning
Showing great care and perseverance; diligent and hardworking.
Example
His assiduous efforts led to a successful career.
C1 verb /ˈɒs.ɪ.leɪt/

oscillate

Meaning
To swing or move back and forth between two points or states
Example
The stock market tends to oscillate during uncertain times.
C2 noun /dʒɛˌstɪkjʊˈleɪʃən/

gesticulation

Meaning
a gesture, especially a dramatic one, used instead of speaking or to emphasize speech
Example
His speech was full of passionate gesticulations.
C2 adjective /ˈkɒr.ə.ɡeɪ.tɪd/

corrugated

Meaning
shaped into ridges and grooves; wrinkled or folded
Example
The roof was made of corrugated metal sheets.
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.
C2 noun /kiˌɑːrəˈskjʊəroʊ/

chiaroscuro

Meaning
The use of strong contrasts between light and dark in art or literature to create a dramatic effect.
Example
The artist's painting used chiaroscuro to highlight the figure's face.
B2 adjective /ˈpæʃənət/

passionate

Meaning
showing or caused by strong feelings or a strong belief
Example
He is passionate about environmental conservation.
A2 noun dɪˈveləpmənt

development

Meaning
The process of developing or being developed; growth or progress.
Example
Development of Bengali society was hindered.
C2 noun /ˈɛnsaɪn/

ensign

Meaning
A flag or standard, especially a military or naval one indicating nationality; also a junior officer in the navy or coast guard.
Example
The ship raised its national ensign before leaving the harbor.
A2 noun /ˈsɪl.vər/

Silver

Meaning
a shiny white precious metal used for making jewelry and ornaments
Example
The silver ring sparkled in the sunlight.
B2 noun /ˈtʌtʃ.daʊn/

touchdown

Meaning
the moment when an aircraft lands, or a score in American football
Example
The plane made a smooth touchdown.
B1 verb /straɪk/

Strike

Meaning
to hit forcefully; to stop work as a form of protest
Example
Lightning strikes the tall building during the storm.
B2 noun ˈɪndɪkeɪtə

indicator

Meaning
A thing that indicates the state or level of something.
Example
The unemployment rate is a key indicator of economic health.
A1 noun /suːp/

Soup

Meaning
a liquid food made by boiling meat, vegetables, or other ingredients in water
Example
I had a bowl of chicken soup for lunch.
A2 noun /ʃiːt/

sheet

Meaning
a large piece of cloth or paper, typically used to cover or protect something
Example
I need a clean sheet to cover the bed.
B2 noun /oʊˈbiː.di.əns/

Obedience

Meaning
compliance with an order, request, or law; submission to authority
Example
Children should show obedience to their parents.
C1 noun /ˈsʌtlti/

subtlety

Meaning
The quality or state of being subtle.
Example
She understood the subtlety of the situation.
C2 adjective /ˌseɪpiˈɛnʃəl/

sapiential

Meaning
Relating to wisdom or knowledge, often in a religious or philosophical sense.
Example
The monk shared sapiential teachings with his students.
B2 adjective ˈmem.ər.ə.bəl

memorable

Meaning
Worth remembering or easily remembered, especially because of being special or unusual.
Example
Memorable events inspire generations.
C2 adjective /ʌnˈtræməld/

untrammeled

Meaning
Not restricted or hampered; free and unrestricted.
Example
She enjoyed untrammeled freedom in her new life abroad.
B2 verb /bɪˈtreɪ/

betray

Meaning
to be disloyal to; to reveal secrets
Example
He felt betrayed by his closest friend.
B1 noun /ˈniː.dəl/

Needle

Meaning
a thin, pointed metal instrument used for sewing
Example
She threaded the needle to sew the button.
C2 noun /ˈʃɛvrən/

chevron

Meaning
A V-shaped pattern, often used in military insignia or design.
Example
The sergeant’s uniform displayed three chevrons on the sleeve.
C2 noun /ˈlæŋɡər/

languor

Meaning
A state of tiredness, inertia, or dreamy relaxation.
Example
The hot afternoon filled her with languor.
C2 noun /ˈdʒɒlɪti/

jollity

Meaning
lively and cheerful activity or celebration
Example
The wedding was full of jollity and laughter.
B1 noun /ˈfes.tə.vəl/

Festival

Meaning
a day or period of celebration, typically for religious reasons; an organized series of concerts, films, etc.
Example
The music festival attracted thousands of visitors from around the world.
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.
C2 noun ˌfjuːmɪˈɡeɪʃən

fumigation

Meaning
The practice of disinfecting or purifying an area using gas or smoke.
Example
Fumigation is an effective method to control pest infestations.
C2 adjective /ˌdɛl.ɪˈtɪə.ri.əs/

deleterious

Meaning
Causing physical or mental harm or damage.
Example
Smoking has deleterious effects on health.
C1 verb /ˈpɜːmieɪt/

permeate

Meaning
Spread throughout (something); pervade.
Example
The scent of fresh flowers permeated the entire room.
C1 noun /ˈtɜːrbjələns/

turbulence

Meaning
Violent or unsteady movement of air, water, or some other fluid; disorder or conflict.
Example
The plane experienced severe turbulence during the flight.
A1 adjective /twɛlv/

twelve

Meaning
the number equivalent to 12
Example
There are twelve months in a year.
B2 verb /ˈtrænsplænt/

transplant

Meaning
to move something, especially a plant or organ, from one place to another
Example
The doctors transplanted a kidney into the patient.
C1 noun məˈriːn ˈsɜː.veɪ

marine survey

Meaning
A systematic examination of the sea, seabed, and underwater features for the purpose of making maps or gathering other information.
Example
The marine survey identified the ideal cable routes.
C2 noun /ˈsaɪnɪkjʊər/

sinecure

Meaning
a position requiring little or no work but giving financial benefit or status
Example
He was given a sinecure at the university as a reward for his loyalty.
B2 verb /ˈrɛkən/

reckon

Meaning
To think, believe, or expect something; to calculate or estimate.
Example
I reckon it will rain later today.
B2 noun /ˈpɪl.ɡrɪm/

Pilgrim

Meaning
a person who journeys to a sacred place for religious reasons; a traveler
Example
The pilgrim walked for days to reach the holy shrine.
B2 adjective /ˈtʌtʃ.ɪŋ/

Touching

Meaning
causing feelings of sympathy or emotion; moving
Example
The touching story brought tears to everyone's eyes.
A2 adjective /ˈpiːs.fəl/

Peaceful

Meaning
free from disturbance; calm and quiet; not involving war or violence
Example
The garden is a peaceful place to relax.
C1 noun /ˌpɒməˈdɔːrəʊ/

pomodoro

Meaning
A time management technique that uses a timer to break down work into intervals.
Example
The Pomodoro technique improves productivity.
C2 noun /fɪˈlæt.əl.ɪst/

philatelist

Meaning
a person who collects or studies postage stamps
Example
The philatelist spent years building a rare stamp collection.
B1 noun /ˈvɔɪ.ɪdʒ/

Voyage

Meaning
a long journey involving travel by sea or in space
Example
The ship's voyage across the Atlantic took two weeks.
C1 adjective ˈklaɪ.mət rɪˈzɪl.i.ənt

climate-resilient

Meaning
Able to cope with the adverse effects of climate change; sustainable and adaptable.
Example
Climate-resilient crops can survive extreme weather conditions.
C2 noun /ˈhʌmbʌɡ/

humbug

Meaning
Deceptive or false talk or behavior; nonsense.
Example
He dismissed the idea as humbug.
B2 adjective /ˈmæskjəlɪn/

masculine

Meaning
having qualities traditionally associated with men
Example
He has a deep, masculine voice.
B2 noun /ˈɡʌv.ən.əns/

governance

Meaning
The action or manner of governing and controlling a state or organization.
Example
Effective governance ensures sustainable development.
B2 noun /ˈtɛrərɪst/

terrorist

Meaning
a person who uses violence or threats to intimidate or coerce, especially for political purposes
Example
The terrorist was arrested by the police after the attack.
B1 noun /ˈɪnkʌm/

income

Meaning
money received for work or through investments
Example
His monthly income is enough to support his family.
B1 verb /prəˈsiːd/

proceed

Meaning
to continue with a course of action; to move forward
Example
Let's proceed with the meeting as planned.
B2 noun /rɪˈmaɪndər/

reminder

Meaning
something that helps you remember a fact, event, or action that you need to do or recall
Example
He set a reminder to call his mother on her birthday.
B1 adjective /ˈneɪtɪv/

native

Meaning
Belonging to a person by birth; originating in a particular place.
Example
He is a native speaker of Bengali.
C2 noun /ˌɛmjʊˈleɪ.ʃən/

emulation

Meaning
Reproducing something or following someone to achieve success.
Example
The software allows the emulation of old video games on modern devices.
C2 verb /meɪm/

maim

Meaning
To wound or injure someone so that part of the body is permanently damaged.
Example
The accident maimed several passengers.
C1 adjective /ænˈtɪriər/

anterior

Meaning
Situated at or toward the front; coming before in position or time.
Example
The anterior part of the brain controls logical thinking.
B2 adjective ˌpaɪəˈnɪə.rɪŋ

pioneering

Meaning
Involving new ideas or methods; innovative and original.
Example
Pioneering efforts often lead to success.
C1 adjective /kwɪər/

Queer

Meaning
strange; unusual; peculiar; odd
Example
The old house had a queer atmosphere that made visitors uncomfortable.
B1 adjective /kiːn/

Keen

Meaning
sharp; acute; intense; eager
Example
She has a keen interest in science.
B2 noun /ˈʃʌv.əl/

Shovel

Meaning
a tool with a broad flat blade and long handle used for digging and moving earth, snow, or other materials
Example
He grabbed a shovel to clear the snow from the driveway.
C2 noun /ˈhoʊl.stər/

holster

Meaning
A holder or case for carrying a gun, typically worn on a belt or shoulder.
Example
The sheriff kept his revolver in a leather holster.
C1 adjective /ˈflʌstərd/

flustered

Meaning
in a state of confusion or agitation
Example
She appeared flustered after being asked so many questions.
B2 noun /dɪˈnaɪ.əl/

Denial

Meaning
the action of declaring something to be untrue; refusal to acknowledge something
Example
His denial of involvement in the scandal was met with skepticism.
C2 noun /ˈsaɪ.nəˌʃʊr/

cynosure

Meaning
A person or thing that is the center of attention or admiration.
Example
She was the cynosure of all eyes at the party.
B1 adverb /ˈsekəndli/

secondly

Meaning
Used to introduce the second point in a list of arguments or ideas.
Example
Firstly, we need funding; secondly, we need a strong team.
B1 noun /ˈpoʊni/

Pony

Meaning
a small horse, typically under 14.2 hands high
Example
The children enjoyed riding the gentle pony at the farm.