Caterpillar
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B1 noun /ˈkæt.ər.pɪl.ər/

Caterpillar

Meaning
the larva of a butterfly or moth that feeds on plants
Example
The caterpillar ate all the leaves on the plant.
C1 adjective /ʌnˈsɜːrvɪsəbəl/

Unserviceable

Meaning
not in working order; unable to be used; defective
Example
The old computer became unserviceable after the system crash.
A2 noun /skɜːrt/

Skirt

Meaning
a garment that hangs from the waist and covers part or all of the legs
Example
She chose a blue skirt to match her blouse.
C1 adjective /ˌsaɪkoʊsəˈmætɪk/

psychosomatic

Meaning
Relating to a physical illness or condition caused or aggravated by mental factors such as stress.
Example
Her stomach pain was diagnosed as psychosomatic, linked to stress.
C2 noun /ˈrɛv.ər.i/

reverie

Meaning
A state of being pleasantly lost in one's thoughts; a daydream.
Example
Lost in reverie, he didn't hear his name being called.
B2 noun /ˈstɑːrt.ʌp/

startup

Meaning
A newly established business, especially a small technology or business company that is just beginning operations.
Example
The startup secured funding from investors.
C1 noun ˈpɜː.mə.kʌl.tʃər

permaculture

Meaning
The development of agricultural ecosystems intended to be sustainable and self-sufficient.
Example
Permaculture promotes self-sufficient farming systems.
C2 adjective /sɪˈnæp.tɪk/

synaptic

Meaning
Related to the signal transmission process between nerve cells.
Example
Learning strengthens synaptic connections in the brain.
C1 noun kəˈmjuːnɪti ˈsɜːrvɪs aɪˈdiːəlz

community service ideals

Meaning
Principles and standards of serving the community for social good.
Example
Community service ideals must be taught in schools.
C2 noun /slaɪt/

sleight

Meaning
Skill or dexterity, especially in performing tricks.
Example
The magician amazed the crowd with his sleight of hand.
B2 adjective /ˈed.ɪ.bəl/

Edible

Meaning
safe to eat; suitable for consumption
Example
Only edible mushrooms should be used in cooking.
C1 noun /kənˈfɔːrməns/

conformance

Meaning
The act of conforming to a rule, standard, or law.
Example
The product was tested for conformance with safety standards.
C2 noun /θiˈɒkrəsi/

theocrasy

Meaning
Government or rule by religious leaders or clergy.
Example
Theocrasy often merges religious authority with political power.
B2 verb /ɪmˈpaʊər/

empower

Meaning
To give someone the power or authority to do something; to make someone stronger or more confident.
Example
Education can empower people to improve their lives.
C1 verb /ˈkrʌmpəl/

crumple

Meaning
to crush something into folds or wrinkles
Example
He crumpled the paper and threw it in the bin.
C1 noun/verb /ˈslʌmbər/

slumber

Meaning
A state of sleep; to sleep lightly or rest.
Example
The child slumbered peacefully through the night.
A2 noun /ˈdʒækɪt/

Jacket

Meaning
a piece of clothing worn on the upper body, typically having sleeves and fastening down the front
Example
He wore a leather jacket to protect himself from the cold wind.
C1 verb /θrɒb/

throb

Meaning
to beat or pulse strongly, often with pain
Example
His head began to throb after the long day.
A2 adjective /ˈpɜːrfɪkt/

Perfect

Meaning
flawless; excellent; without fault
Example
She delivered a perfect performance on stage.
C1 noun /brəˈzɪər/

Brassiere

Meaning
a woman's undergarment designed to support the breasts
Example
She bought a comfortable brassiere for daily wear.
C2 noun /ruːθ/

ruth

Meaning
A feeling of pity, compassion, or sorrow.
Example
He felt no ruth for the people he had betrayed.
B1 noun /ˈɔr.ə.ʒɪn/

Origin

Meaning
the point or place where something begins, arises, or is derived; the source
Example
Scientists are studying the origin of the universe.
B1 noun ˈdɪsɪplɪn

discipline

Meaning
The practice of training people to obey rules or a code of behavior, using punishment to correct disobedience
Example
Discipline helps maintain focus and productivity.
A2 noun /nɒk/

Knock

Meaning
a sudden sharp blow; the sound of striking something
Example
There was a loud knock at the door late at night.
C2 noun /ˈfiːæt/

fiat

Meaning
an official order or decree; authoritative command
Example
The new policy was enacted by royal fiat.
B2 adjective /ʌnˈprɒf.ɪ.tə.bl̩/

Unprofitable

Meaning
not yielding profit or gain; not producing financial benefit
Example
The unprofitable business was forced to close down after three years.
B1 noun /ˈsɜːdʒəri/

surgery

Meaning
a medical procedure involving the cutting of the body to treat a condition
Example
She underwent surgery to remove the tumor.
C2 adjective /ˌdaɪəˈlɛktɪkəl/

dialectical

Meaning
Relating to the logical discussion of ideas and opinions.
Example
She took a dialectical approach to solve the complex issue.
A2 adverb /ˈriː.sənt.li/

Recently

Meaning
in the recent past; not long ago
Example
I recently moved to a new apartment.
C2 noun /ˈsɒfɪst/

sophist

Meaning
a person who uses clever but misleading arguments
Example
He was dismissed as a sophist who twisted facts to win debates.
C2 adjective /ˌæntɪˈmʌndeɪn/

antemundane

Meaning
Existing or occurring before the creation of the world.
Example
Some myths speak of an antemundane chaos before order was established.
B1 noun /ˈdʒuː.ni.ər/

Junior

Meaning
a person who is younger or lower in rank than someone else; relating to young people
Example
The junior employee was eager to learn from senior colleagues.
C1 noun /ˈbaɪ.lɔː/

by-law

Meaning
A rule made by a company, organization, or local authority to control the actions of its members.
Example
The city council passed a new by-law regulating street vendors.
B1 verb /stɛə/

stare

Meaning
to look at something with a fixed gaze
Example
She stared at the painting for hours.
C2 noun /ˈiːɡlət/

eaglet

Meaning
A young eagle.
Example
The eaglet waited in the nest for its mother to return.
C1 verb/noun ˈfæð.əm

fathom

Meaning
To understand after much thought; to measure the depth of water; to comprehend.
Example
It is difficult to fathom the depths of the ocean.
C2 noun /ˈpɔːpərɪzəm/

pauperism

Meaning
The state of being extremely poor.
Example
The country struggled with rising pauperism in the 19th century.
B2 adjective /ˈpɪt.i.fəl/

pitiful

Meaning
deserving or arousing pity; very small or inadequate
Example
The team's performance was pitiful compared to last year.
A2 noun ˈɑːrɡjumənt

argument

Meaning
A reason or set of reasons given with the aim of persuading others that an action or idea is right or wrong.
Example
His argument was based on majority.
C2 verb /dɪˈpreɪv/

deprave

Meaning
to corrupt morally; to make someone immoral or wicked
Example
The novel was criticized for attempting to deprave the minds of young readers.
C2 noun /ˈpætwɑː/

patois

Meaning
a regional or social dialect, especially one considered nonstandard or informal
Example
The guide slipped into local patois when chatting with the fishermen.
B2 verb /bɑːrk/

bark

Meaning
to make a sharp sound like a dog; to speak angrily
Example
The dog barks at strangers.
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.
C1 adjective /ɪmˈpæʃənd/

impassioned

Meaning
Filled with or showing great emotion.
Example
She gave an impassioned speech about human rights.
C1 noun ˈhaɪ.drə.dʒən ˈpaʊ.əd bʌsɪz

hydrogen-powered buses

Meaning
Buses powered by hydrogen fuel cells that produce only water vapor as emission.
Example
Hydrogen-powered buses reduce air pollution.
C2 adjective /ˈpɛneɪt/

pennate

Meaning
Having parts or structures arranged like a feather; feather-shaped.
Example
The fern has a pennate leaf structure.
A2 noun /ˌænɪˈvɜːrsəri/

anniversary

Meaning
the yearly recurrence of a date marking a past event
Example
They celebrated their wedding anniversary with a dinner.
B1 adjective /ʌnˈjuː.ʒu.əl/

Unusual

Meaning
not typical; strange; different from what is normal
Example
She wore an unusual dress to the party.
B2 adjective ədˈmɪn.ɪ.strə.tɪv

administrative

Meaning
Relating to the running of a business, organization, etc.; concerned with or relating to management or administration.
Example
Administrative reforms improve efficiency.
B2 verb /dɪˈvaɪz/

devise

Meaning
To plan or invent something carefully.
Example
The engineers devised a new method to reduce costs.
C1 adjective; noun /ɪˈmɔːrtl/

immortal

Meaning
living forever; never dying; lasting forever in fame or memory
Example
Legends often describe heroes as immortal beings who never die.
C2 noun /ˈlæsi/

lassie

Meaning
a young girl (informal, mainly Scottish)
Example
The old man greeted the little lassie warmly.
B2 noun ɪnˈtɛɡrɪti

integrity

Meaning
The quality of being honest and having strong moral principles; moral uprightness.
Example
Teachers' integrity fosters a positive learning environment.
C1 adjective /ˈsɪn.tɪ.leɪ.tɪŋ/

scintillating

Meaning
brilliantly clever, exciting, or sparkling
Example
Her scintillating conversation kept everyone entertained.
C1 verb /ˈdʒʌɡəl/

juggle

Meaning
To continuously toss and catch objects in the air; to manage many tasks at the same time.
Example
He tried to juggle work, studies, and family responsibilities.
B1 adverb /əˈkeɪʒənəli/

Occasionally

Meaning
sometimes; from time to time; not regularly
Example
I occasionally visit my grandmother on weekends.
B2 verb ˈfaɪ.nəl.aɪz

finalize

Meaning
To complete arrangements for something; put into final form.
Example
The treaty was finalized after the discussions.
B2 noun /sɪlk/

silk

Meaning
a fine, smooth fabric made from the threads produced by silkworms
Example
The dress was made of pure silk.
B1 adjective /ˈmædʒɪkəl/

magical

Meaning
having or producing the charm, beauty, or power of magic
Example
The sunset over the mountains was a magical sight.
B1 noun /ˈlek.tʃər/

Lecture

Meaning
an educational talk to an audience, especially to students in a university or college
Example
The professor gave an interesting lecture on history.
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.
C1 adjective /ˈsɛn.sər.i/

sensory

Meaning
Related to the five human senses (sight, hearing, taste, touch, smell).
Example
Sensory feedback enhances the VR experience.
A2 noun /ˈkrɒk.ə.daɪl/

Crocodile

Meaning
a large reptile with a long mouth and sharp teeth that lives in rivers and lakes in hot countries
Example
The crocodile slowly moved through the murky water.
C1 verb, noun /ˈbreɪnˌwɒʃ/

brainwash

Meaning
to manipulate someone into adopting certain beliefs by repeated pressure or propaganda; the act or process of such manipulation
Example
The group tried to brainwash new members with constant propaganda.
C1 noun, adjective /ˌnɒn ˈrɛzɪdənt/

non-resident

Meaning
a person who does not live in a particular country or place permanently
Example
Non-resident students often pay higher tuition fees.
C1 verb /ˈkwɪvər/

quiver

Meaning
To tremble or shake with slight but rapid motion.
Example
Her lips began to quiver as she tried not to cry.
B2 adjective /ˈklæsɪfaɪd/

classified

Meaning
arranged into categories; officially secret or restricted
Example
The report contains classified information and cannot be shared publicly.
C1 adjective /ˈmɜː(r)dərəs/

Murderous

Meaning
having the intent to kill; extremely violent; bloodthirsty
Example
The murderous look in his eyes frightened everyone.
B2 noun /rɪb/

Rib

Meaning
one of the curved bones that protect the chest and lungs
Example
He broke his rib in the accident.
A1 adjective /ˈwelkəm/

Welcome

Meaning
received with pleasure; giving pleasure; allowed or invited
Example
You are always welcome in our home.
A2 verb /fiːd/

feed

Meaning
to give food to a person or animal
Example
She feeds the birds every morning.
A2 phrasal verb /pɪk ʌp/

pick up

Meaning
to lift something; to collect or receive someone or something; to learn or acquire gradually; to improve or increase
Example
She picked up the book from the floor.
B1 noun /ˈdez.ət/

Desert

Meaning
a barren area of landscape with little precipitation; an arid region with sparse vegetation
Example
The Sahara Desert is one of the largest hot deserts in the world.
B2 noun /ˈɡæm.blər/

Gambler

Meaning
a person who gambles regularly, typically someone who cannot resist the urge to gamble
Example
The experienced gambler knew when to fold his cards and when to bet big.
C1 adjective /rɪˈvɜː.sə.bəl/

Reversible

Meaning
able to be turned the other way around; able to be undone or changed back
Example
This jacket is reversible and can be worn on both sides.
C2 noun /ˌdɛkləˈmeɪʃən/

declamation

Meaning
a formal speech delivered with rhetorical or dramatic effect
Example
Her declamation captivated the audience at the competition.
B2 adjective + noun ˈpraɪməri əbˈdʒektɪv

primary objective

Meaning
The main goal or chief aim of an activity, project, or endeavor.
Example
The primary objective of the event was to promote recycling.
B2 adjective, noun /ɪzˈreɪli/

israeli

Meaning
relating to Israel or its people; a person from Israel
Example
She works for an Israeli company.
C1 noun /ɪˈlɛk.trəʊ.laɪts/

electrolytes

Meaning
Minerals in body fluids that carry an electric charge and are essential for many bodily functions.
Example
Electrolytes help maintain proper fluid balance in the body.
C2 noun /aɪˈoʊtə/

iota

Meaning
An extremely small amount.
Example
He did not show an iota of fear.
B1 noun /ˈprɛɡnənsi/

pregnancy

Meaning
the condition of being pregnant; the period during which a woman carries a developing fetus
Example
Her pregnancy was carefully monitored by her doctor.
A2 noun /ˈbɪz.nəs/

Business

Meaning
work relating to the production, buying, and selling of goods or services
Example
He started his own business after graduating from university.
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 /ˌstætʃuˈɛt/

statuette

Meaning
A small statue, usually decorative or artistic.
Example
The artist won a gold statuette for his work.
B1 adjective /ʌnˈlaɪkli/

Unlikely

Meaning
not likely to happen; improbable
Example
It's unlikely to rain today with such clear skies.
B2 adjective /ˈtʃuː.zi/

Choosey/Choosy

Meaning
very careful in choosing; selective; particular about what one likes or accepts
Example
He's very choosy about the restaurants where he eats.
C1 adjective /ˈærɪd/

arid

Meaning
extremely dry; lacking in interest or excitement
Example
The desert is known for its arid climate.
B1 noun /tʃiːk/

Cheek

Meaning
either side of the face below the eye; impudent or disrespectful behavior
Example
The baby's rosy cheeks showed she was healthy and happy.
C1 verb /ˈpæmpər/

pamper

Meaning
to treat with excessive care and attention; to spoil
Example
Parents often pamper their first child.
B1 noun /ˈfɔːr.tʃən/

Fortune

Meaning
chance or luck as an external, arbitrary force affecting human affairs; a large amount of money or assets
Example
He made his fortune by investing wisely in technology companies.
C1 adjective /haɪˈdrɔːlɪk/

hydraulic

Meaning
operated by the pressure of liquid, especially water or oil
Example
The mechanic repaired the hydraulic system of the machine.
B1 noun /praɪˈɔːr.ə.ti/

Priority

Meaning
something that is more important than other things and needs attention first
Example
Health should be our top priority.
A1 noun /kiː/

Key

Meaning
a small piece of shaped metal used to operate a lock; something that provides a means of access
Example
She lost her house key and couldn't get inside until the locksmith arrived.
B2 noun /ˈdʌmi/

dummy

Meaning
a model or replica of a human used for practice, display, or testing; also a term for a foolish person
Example
The tailor used a dummy to display the dress.
C1 adjective /ˈreɪdiənt/

radiant

Meaning
Shining brightly; expressing great happiness.
Example
She looked radiant in her wedding dress.
B1 noun /bɪˈheɪvjər/

behavior

Meaning
The way in which one acts or conducts oneself, especially toward others.
Example
The teacher praised her good behavior in class.
B2 adjective /ˈlɛdʒəndɛri/

legendary

Meaning
remarkable enough to be famous; often used to describe something that is iconic or widely known
Example
The legendary musician performed in front of a packed stadium.
C1 verb /ˈfɜːrmɛnt/

ferment

Meaning
to undergo a chemical process where sugars are converted to alcohol or acid; to incite or stir up change
Example
The grapes are left to ferment for several weeks.
C1 adjective /ˈnæv.ɪ.ɡə.bəl/

Navigable

Meaning
suitable for ships or boats to travel on; able to be navigated
Example
The river is navigable for small boats during the rainy season.
B1 noun ɪˈkɒnəmiːz

economies

Meaning
The wealth and resources of a country or region.
Example
Emerging economies have been growing rapidly over the past decade.
C2 noun /ˈdʒʌɡjələr/

jugular

Meaning
A large vein in the neck that carries blood from the head back to the heart.
Example
The doctor checked the patient's jugular vein for signs of pressure.
C1 noun /ˈhaɪbrɪd/

hybrid

Meaning
a mixture of two different things, often combining the best qualities of both
Example
The car is a hybrid that runs on both electricity and fuel.
A2 adjective /ˈwɜːrkɪŋ/

working

Meaning
engaged in physical or mental effort to achieve a goal or task
Example
She is working on her project right now.
C1 verb /ˈhʌsəl/

hustle

Meaning
to move quickly and energetically; to push or work hard to achieve something
Example
She had to hustle to finish the project on time.
C1 noun /ˈvælər/

valor

Meaning
Great courage in the face of danger, especially in battle.
Example
The soldier was honored for his valor during the war.
B2 noun /saɪˈkɒlədʒɪst/

psychologist

Meaning
a person who studies mental processes and behavior
Example
The psychologist helped him cope with his anxiety.
C1 noun /ˈfɔːrsəm/

foursome

Meaning
a group of four people or things, especially in games or social activities
Example
The foursome enjoyed a game of golf together.
C2 noun /ˈʃʊərəti/

surety

Meaning
a person who takes responsibility for another's performance of an undertaking, such as appearing in court or paying a debt
Example
The landlord required a surety before renting the apartment.
C1 preposition/adverb/conjunction /ˌnɒtwɪθˈstændɪŋ/

notwithstanding

Meaning
In spite of; despite
Example
Notwithstanding the challenges, the team completed the project.
C2 noun /ˈɛmɪsɛri/

emissary

Meaning
A person sent on a special mission, usually as a diplomatic representative.
Example
The king sent an emissary to negotiate peace.
C1 noun /ˌrev.əˈluː.ʃən.ər.i ˈbreɪk.θruː/

revolutionary breakthrough

Meaning
A sudden, dramatic, and important discovery or development that changes everything.
Example
Robotic surgery is a revolutionary breakthrough in healthcare.
A1 noun /tɒp/

top

Meaning
the highest or uppermost point, part, or surface of something
Example
The book is on the top shelf.
C2 noun /ˈpoʊ.ə.si/

poesy

Meaning
poetry; the art or composition of poems
Example
The anthology was filled with romantic poesy.
A2 noun /weɪt/

weight

Meaning
a measure of how heavy something is
Example
The weight of the package was 10 kilograms.
B1 verb /spaɪ/

spy

Meaning
to secretly collect information about a person, group, or country
Example
He was caught spying on his neighbor through the window.
C1 noun /dɪˈskrep.ən.si/

discrepancy

Meaning
A lack of compatibility or similarity between two or more facts.
Example
The audit revealed a discrepancy between the reported earnings and actual income.
B1 adjective /ʌnˈfɔːr.tʃən.ət/

Unfortunate

Meaning
having bad luck; regrettable or unlucky
Example
It was unfortunate that the meeting was cancelled at the last minute.
A2 adjective /sər'praɪz.ɪŋ/

Surprising

Meaning
causing surprise; unexpected; remarkable
Example
It's surprising how quickly children learn new languages.
A1 adverb /aʊt/

out

Meaning
moving or appearing away from the inside or center; not at home or present
Example
He stepped out of the room quietly.
C1 noun /ˈdjuːplɛks/

duplex

Meaning
A house or apartment divided into two separate residences.
Example
They live in a duplex near the city center.
C1 verb /ˈʃɪmər/

shimmer

Meaning
To shine with a soft, wavering light.
Example
The lake shimmered under the moonlight.