infiltrate
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C1 verb /ˈɪnfɪltreɪt/

infiltrate

Meaning
to secretly enter or gain access to a place or group
Example
The spies managed to infiltrate the enemy base.
C2 verb /ˌmælˈtriːt/

maltreat

Meaning
To treat someone cruelly or unfairly.
Example
The law punishes those who maltreat animals.
C1 noun speɪst ˌrep.ɪˈtɪʃ.ən

spaced repetition

Meaning
A learning technique that involves reviewing information at increasing intervals to improve long-term retention.
Example
Spaced repetition helps in long-term memory retention.
A1 noun /sɪks/

six

Meaning
the number 6
Example
There are six apples on the table.
B2 noun /ɪˈluː.ʒən/

Illusion

Meaning
a thing that is or is likely to be wrongly perceived or interpreted; a false idea or belief
Example
The magician created a spectacular illusion that made the elephant appear to vanish.
A2 pronoun /huːm/

whom

Meaning
used to refer to the person or people that something is done to
Example
The man whom I met yesterday is my friend.
C2 verb /ˈɛmɪt/

emmet

Meaning
an ant; a small insect
Example
The emmet carried food to its nest.
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.
C1 noun ˌdɛɡrəˈdeɪʃən

degradation

Meaning
The condition or process of degrading or being degraded.
Example
Soil degradation due to overuse is a growing issue.
C2 adjective /pɪˈdʒɒrətɪv/

pejorative

Meaning
Expressing contempt or disapproval.
Example
He used pejorative terms to insult his opponents.
B2 noun/verb /flɑːk/

flock

Meaning
a group of birds or animals; to gather or move in a crowd
Example
Tourists flocked to the beach during summer.
B1 noun

Pedestrian

A2 adjective /ˈsɛvrəl/

several

Meaning
more than one but not many; a few
Example
Several people attended the meeting yesterday.
C1 adjective məˈdʒes.tɪk

Majestic

Meaning
Having impressive beauty, dignity, or grandeur; regal and stately in appearance.
Example
The majestic Himalayas stand tall against the sky.
B1 noun /stiːl/

steel

Meaning
a strong, hard metal made of iron and carbon
Example
The building was made from steel to ensure its durability.
C1 adjective /ɪnˈdetɪd/

Indebted

Meaning
owing money or gratitude to someone; obligated; grateful
Example
I am deeply indebted to my teacher for all her guidance.
A2 noun /kɔɪnz/

coins

Meaning
Flat, typically round pieces of metal issued by a government as money.
Example
He collected old coins from different countries.
C1 verb /rɪˈpiːl/

repeal

Meaning
To officially cancel or revoke a law or decision.
Example
The government decided to repeal the outdated law.
C1 adjective /ɪmˈpɜːrtɪnənt/

impertinent

Meaning
rude and showing a lack of respect
Example
It was impertinent of him to question the manager's decision.
C1 adjective /ˈɛərˌtaɪt/

airtight

Meaning
Completely sealed so that no air can get in or out.
Example
Store the cookies in an airtight container to keep them fresh.
C2 noun /ɪˈrɛvərəns/

irreverence

Meaning
a lack of respect for people or things that are generally taken seriously
Example
His jokes about religion showed irreverence to the sacred traditions.
C1 noun /səˈvɪləti/

civility

Meaning
Polite and courteous behavior.
Example
He treated his opponent with civility despite their differences.
B1 noun /səˈdʒes.tʃən/

Suggestion

Meaning
an idea or plan put forward for consideration; advice or recommendation
Example
Do you have any suggestions for improving our team's productivity?
C2 noun /ˈbuːt.leɪs/

Boot-lace

Meaning
a cord or string used to fasten a boot or shoe
Example
I need to tie my boot-lace before going for a walk.
B2 noun /ˌɡriːn ˈen.ə.dʒi/

green energy

Meaning
Energy derived from renewable sources that have minimal environmental impact.
Example
Green energy reduces environmental harm.
B2 verb /ɪmˈbreɪs/

embrace

Meaning
to hold someone closely in your arms; to accept willingly
Example
She embraced her friend at the airport.
B2 adjective /məˈtjʊr/

mature

Meaning
fully developed or grown, especially emotionally or intellectually
Example
She has become a mature and confident leader.
B2 adjective /ˈʌt.moʊst/

Utmost

Meaning
greatest; most extreme; maximum possible
Example
She showed utmost care while handling the fragile items.
B2 adjective + noun ˈɒptɪməl ˈtempərətʃər

optimal temperature

Meaning
The best or most favorable temperature for a particular purpose
Example
Winter provides optimal temperature for farming.
B2 noun ˈsʌbstɪˌtut

substitute

Meaning
A person or thing acting or serving in place of another.
Example
Money cannot be a substitute for genuine happiness.
A2 noun trʌst

trust

Meaning
Firm belief in the reliability, truth, ability, or strength of someone or something; confidence placed in a person by making that person the nominal owner of property.
Example
Building trust is essential for long-term relationships.
B1 noun /ˈleɪ.bəl/

Label

Meaning
a small piece of paper or material attached to something to identify or describe it
Example
Please read the label carefully before taking any medication.
B2 adjective /ˌθiːəˈrɛtɪkl/

theoretical

Meaning
Concerned with or based on theory rather than practical application.
Example
The idea remains largely theoretical without real-world evidence.
C2 noun /ˈɑːm.lət/

Armlet

Meaning
a band worn around the upper arm as an ornament
Example
The traditional dancer wore golden armlets that gleamed in the spotlight.
C1 verb dɪˈsaɪ.fɚ

decipher

Meaning
To convert something written in code into normal language; to succeed in understanding the meaning of something.
Example
It took hours to decipher the ancient script.
C1 adjective /ˈmoʊmənˌteri/

momentary

Meaning
Lasting for only a short time.
Example
There was a momentary silence in the room.
A2 adjective /ˈhɔːrəbəl/

Horrible

Meaning
causing or likely to cause horror; shocking; terrible; extremely unpleasant
Example
The accident was a horrible sight to witness.
B2 noun; adjective /ˌnɒnˈprɒfɪt/

non-profit

Meaning
an organization that does not operate for profit and reinvests surplus to achieve social goals; not intended to make financial profit
Example
She works for a non-profit that provides free education to underprivileged children.
C2 noun /əˈbrɪdʒmənt/

abridgment

Meaning
A shortened version of a larger work, such as a book or speech.
Example
The publisher released an abridgment of the lengthy novel for students.
A1 noun /ˈwɪntər/

winter

Meaning
the coldest season of the year, typically from December to February in the Northern Hemisphere
Example
Winter in the north can be very harsh with heavy snowfall.
B2 noun /traɪb/

tribe

Meaning
a social group consisting of people with common customs, language, and culture
Example
The tribe lived in harmony with nature.
B2 verb, noun, adjective /baʊnd/

bound

Meaning
To move with large strides or jumps; also refers to being tied, limited, or certain.
Example
The dog bounded across the field with joy.
B2 adjective /bɪˈkʌmɪŋ/

becoming

Meaning
attractive, suitable, or flattering to the wearer or situation
Example
That dress is very becoming on her.
C1 verb /ˈpɛtrɪfaɪ/

petrify

Meaning
to make someone so frightened that they are unable to move or think; to turn into stone
Example
The loud noise petrified the little child.
C2 noun /laɪər/

lyre

Meaning
a stringed musical instrument of ancient Greece
Example
The musician played a melody on the lyre.
C1 noun /dɪˈvɪnɪti/

divinity

Meaning
The quality or state of being divine; a deity.
Example
The priest spoke about the divinity of the soul.
C1 noun /ˈpæstər/

pastor

Meaning
a minister in charge of a Christian church or congregation
Example
The pastor delivered a heartfelt sermon on compassion.
C2 noun /mjuːˈnɪfəsəns/

munificence

Meaning
great generosity or lavish giving
Example
The hospital was built thanks to the munificence of a wealthy donor.
B1 verb /floʊt/

float

Meaning
to rest or move on the surface of a liquid or in the air without sinking
Example
The boat began to float gently down the river.
C1 adjective prɪˈkeə.ri.əs

precarious

Meaning
Not securely held or in position; dependent on chance; uncertain.
Example
His financial situation is precarious.
C1 adjective /ɪnˈdʌldʒənt/

indulgent

Meaning
Having a tendency to be overly generous or lenient with someone.
Example
The indulgent mother allowed her child to stay up late.
C1 adjective /steɪd/

staid

Meaning
Serious, respectable, and unadventurous.
Example
He came from a staid family background.
B1 noun /ˈkɛmɪkəl/

chemical

Meaning
a substance produced by or used in a chemical process
Example
The factory releases harmful chemicals into the river.
C1 noun ˈtɑksɪk ɪˈmɪʃənz

toxic emissions

Meaning
Harmful or poisonous substances released into the environment, especially the atmosphere.
Example
Toxic emissions from vehicles pollute the atmosphere.
C1 noun /ʌnkənˈsɜːrn/

Unconcern

Meaning
lack of worry or interest; indifference
Example
She showed complete unconcern about the criticism.
C1 noun /kəˈnʌn.drəm/

conundrum

Meaning
A complex problem or puzzle without an easy solution
Example
The ethical conundrum puzzled the researchers.
C1 adjective /kənˈdjuː.sɪv/

conducive

Meaning
Making a certain situation or outcome likely or possible; contributing to or helping to bring about.
Example
A quiet environment is conducive to studying.
C1 noun /daɪˈsɛkʃən/

dissection

Meaning
the act of cutting apart or analyzing something in detail, especially a body or structure
Example
The dissection of the specimen revealed important details about its structure.
C1 noun /liːtʃ/

Leech

Meaning
an aquatic or terrestrial annelid worm with suckers at both ends; metaphorically, a person who extorts profit from others
Example
The leech attached itself to his leg while swimming.
B2 noun /ˈbærəl/

barrel

Meaning
a large cylindrical container used to hold liquids
Example
The wine was stored in a wooden barrel.
C2 adjective /ˌæf.əˈrɪs.tɪk/

aphoristic

Meaning
expressed in the style of a short, witty saying
Example
Her writing style is concise and aphoristic.
B1 verb /bæn/

ban

Meaning
to officially forbid something; to prohibit
Example
The government banned smoking in public places.
B1 adjective /ˈsɔːlti/

Salty

Meaning
having the taste of salt; containing salt; tasting of seawater
Example
The salty ocean water made her thirsty.
C1 noun /ˈrʌmpəs/

Rumpus

Meaning
a noisy disturbance; an uproar or commotion
Example
The children caused quite a rumpus in the playground.
C1 noun /ˌtɛknɪˈkæləti/

technicality

Meaning
A small detail of law, rule, or procedure; a minor point that affects an outcome.
Example
The case was dismissed on a technicality.
A1 verb /wɪʃ/

wish

Meaning
to want something to happen; to desire or hope for
Example
I wish I could fly like a bird.
A2 adverb /ˈtruːli/

Truly

Meaning
in accordance with fact or reality; genuinely
Example
She truly loves her family.
C2 noun /pəˈræm.bjə.leɪ.tər/

Perambulator

Meaning
a four-wheeled carriage for a baby; baby stroller or pram
Example
She pushed the perambulator through the park while the baby slept peacefully.
B2 noun ˈsəʊ.ʃəl ˈdʒʌs.tɪs

social justice

Meaning
Justice in terms of the distribution of wealth, opportunities, and privileges within a society.
Example
Social justice ensures equality of opportunity.
B2 verb /ˌʌndərˈskɔːr/

underscore

Meaning
to emphasize or highlight something
Example
The incident underscored the need for better safety measures.
C1 noun /daɪˈvɜː.dʒəns/

divergence

Meaning
The process or state of diverging; a difference or deviation between two or more things.
Example
The divergence in their opinions led to a heated debate.
C1 adjective ˈfæʃ.ɪst

fascist

Meaning
Relating to or characteristic of fascism; extremely authoritarian.
Example
Fascist governance undermines freedom.
C1 adjective /ˈkɔːʃənˌɛri/

cautionary

Meaning
serving as a warning; intended to prevent problems or mistakes by giving advice or examples
Example
The report offers a cautionary message about unchecked spending.
C1 noun /ˈpoʊdiətrɪst/

podiatrist

Meaning
a doctor specializing in foot care
Example
I have an appointment with the podiatrist for my ankle pain.
C2 verb /ˌkaʊntərˈmænd/

countermand

Meaning
to revoke or cancel an order or command
Example
The general countermanded the previous orders immediately.
C1 noun /əˈkɜr.əns/

Occurrence

Meaning
an instance or event of something happening; the fact of occurring
Example
The occurrence of earthquakes is common in this region.
C2 verb /ˌdɪsɪnˈtɜːr/

disinter

Meaning
to dig up something buried, especially a body
Example
The archaeologists disinterred ancient remains from the site.
A2 adverb /kwaɪt/

Quite

Meaning
to a considerable extent; fairly; rather; completely
Example
The movie was quite interesting.
B2 noun /ˈsɜːr.tən.ti/

Certainty

Meaning
firm conviction that something is the case; the quality of being reliably true
Example
We can say with certainty that the project will be completed on time.
C1 verb /ɪmˈpɒvərɪʃ/

impoverish

Meaning
To make someone poor or reduce the quality or richness of something.
Example
The long war impoverished the entire nation.
B2 noun ləˈdʒɪs.tɪks

Logistics

Meaning
The detailed coordination of a complex operation involving many people, facilities, or supplies.
Example
Logistics ensures timely delivery.
B1 noun /ˈædvərˌtaɪzɪŋ/

advertising

Meaning
the activity of producing advertisements for products or services
Example
The company spends millions on advertising every year.
C2 noun /ˈɛərəˌnɔːt/

aeronaut

Meaning
A person who travels in an airship, balloon, or other aircraft.
Example
The aeronaut skillfully guided the hot-air balloon across the valley.
C1 adjective, noun /ˈsɛlɪbət/

celibate

Meaning
abstaining from marriage and sexual relations; a person who does so
Example
He chose to remain celibate for religious reasons.
C2 noun /ˈhæknɪ/

hackney

Meaning
a horse kept for ordinary riding or hire; also used for something overused or trite
Example
The old hackney was still pulling the carriage.
A2 noun /laɪˈbrɛəriən/

librarian

Meaning
a person who manages, organizes, and assists users in a library
Example
The librarian helped me find a rare history book.
C1 adjective /ˌɪnˌkɒnsɪˈkwɛnʃəl/

inconsequential

Meaning
Not important or significant; too small to matter.
Example
The mistake was minor and inconsequential.
C2 adjective /ˈhæl.si.ən/

halcyon

Meaning
calm, peaceful, and happy; denoting a period of time in the past that was idyllically happy and peaceful
Example
She often reminisces about the halcyon days of her childhood.
C1 adjective /ˌɪntərˈtwaɪnd/

intertwined

Meaning
closely connected or twisted together
Example
Their lives became deeply intertwined after the accident.
B1 verb kleɪmz

claims

Meaning
To take someone's life, to cause death
Example
Workplace pollution claims thousands of lives annually.
C1 noun /ˈredʒ.ɪ.mən/

regimen

Meaning
A prescribed course of medical treatment, way of life, or diet for the promotion or restoration of health.
Example
A strict exercise regimen improves overall fitness.
A2 verb /haɪd/

hide

Meaning
to put or keep out of sight; to conceal from view
Example
Children like to hide during games.
B1 adjective /ˌɔːtəˈmætɪk/

automatic

Meaning
working by itself without direct human control
Example
This car has an automatic transmission.
C1 noun /ˌædməˈnɪʃən/

admonition

Meaning
a firm warning or reprimand; gentle or earnest advice
Example
He received an admonition for his careless work.
B1 noun /ˈlɛktʃərər/

lecturer

Meaning
a person who gives lectures, especially at a college or university
Example
The lecturer explained the theory with clear examples.
C1 adjective /ˈzoʊ.nəl/

Zonal

Meaning
relating to or arranged in zones; of, relating to, or having the form of a zone
Example
The city implemented a zonal parking system to manage traffic congestion.
B1 noun /miːnz/

Means

Meaning
An action or system by which a result is achieved; financial resources
Example
They don't have the means to afford such an expensive vacation.
C2 verb /ˈdɒɡmətaɪz/

dogmatize

Meaning
To state opinions or beliefs as if they were absolute truths.
Example
The professor tended to dogmatize on political issues.
B2 noun /səˈvaɪvl/

survival

Meaning
the state of continuing to live or exist, typically in difficult conditions
Example
Survival in the wild can be a challenging experience.
C2 adjective /ˈnæti/

natty

Meaning
Neat, stylish, and fashionable in appearance.
Example
He looked very natty in his new suit.
B2 noun /wɜːrd fɔːrˈmeɪʃən/

word formation

Meaning
the process by which new words are created or existing words are modified in a language
Example
Word formation helps learners understand how new vocabulary develops in English.
C1 noun/adjective /ˈstɜː.lɪŋ/

sterling

Meaning
British money, especially pounds; of excellent quality.
Example
She was praised for her sterling work on the project.
B1 verb /ˈpɜːrtʃəs/

purchase

Meaning
to buy something; to acquire by paying money
Example
I need to purchase groceries for the week.
C1 adjective /ˈtɪpsi/

tipsy

Meaning
slightly drunk
Example
She felt tipsy after just one glass of wine.
C2 noun /drʌdʒ/

drudge

Meaning
A person made to do hard, menial, or dull work.
Example
He felt like a drudge, stuck in repetitive tasks all day.
C2 adjective /pərˈspɪkjuəs/

perspicuous

Meaning
Clearly expressed and easily understood; lucid.
Example
The teacher gave a perspicuous explanation of the theory.
B2 adverb /ˈred.ɪ.li/

Readily

Meaning
willingly; easily; without hesitation
Example
She readily agreed to help with the project.
B2 adverb /ˈsmɑːt.li/

Smartly

Meaning
in a clever or intelligent way; neatly and stylishly; quickly
Example
He was smartly dressed for the business meeting.
B2 noun /blæk sneɪk/

Black Snake

Meaning
a snake with dark or black colored skin
Example
The black snake slithered through the grass.
C2 verb /ˈsʌblɪmeɪt/

sublimate

Meaning
to redirect strong emotions or desires into socially acceptable activities or channels
Example
She sublimated her anger into painting beautiful landscapes.
B2 adjective /rɪˈzɜːrvd/

Reserved

Meaning
slow to reveal emotion or opinions; restrained in manner
Example
She is quite reserved and doesn't talk much in meetings.
C1 adjective + noun njuˈtrɪʃəs krɒps

nutritious crops

Meaning
Plants or vegetables that are rich in nutrients and beneficial for health
Example
Winter vegetables are considered nutritious crops.
A2 noun /ˈfɑː.loʊ.ɪŋ/

following

Meaning
a group of supporters or people who admire something or someone
Example
The singer has a large following around the world.
C1 adverb /ˈhʌŋ.ɡrə.li/

Hungrily

Meaning
in a way that shows hunger; greedily; eagerly
Example
The dog ate hungrily after not eating for hours.
C2 verb /ˈɡræn.jʊ.leɪt/

granulate

Meaning
To form or cause to form into grains or small particles.
Example
The sugar began to granulate as it cooled.
A1 noun, verb /bʊk/

book

Meaning
A set of written, printed, or blank pages fastened together; to arrange for someone to have a seat, room, or ticket in advance.
Example
I booked a table at the restaurant for dinner.
C1 noun /ˈrɛspɪt/

respite

Meaning
A short period of rest or relief from something difficult or unpleasant.
Example
The weekend provided a welcome respite from work.
C1 noun ˌsæn.ɪ.taɪˈzeɪ.ʃən

sanitization

Meaning
The process of cleaning and disinfecting to eliminate germs and bacteria.
Example
Regular sanitization keeps appliances germ-free.
C1 noun /ˈnep.ə.tɪz.əm/

Nepotism

Meaning
the practice of favoring relatives or friends in business or politics
Example
The company was accused of nepotism in its hiring practices.
B1 noun /ˈkaʊnti/

county

Meaning
A territorial division within a country, typically a region with its own local government.
Example
She grew up in a small county in northern England.
A2 noun /leɪk/

Lake

Meaning
a large body of water completely surrounded by land
Example
The peaceful lake reflected the mountains in its calm waters.