Butterfly Population
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B2 noun ˈbʌtərflaɪ ˌpɒpjəˈleɪʃən

Butterfly Population

Meaning
The total number of butterflies in a particular area or ecosystem.
Example
The butterfly population is declining due to habitat loss.
B2 noun /ˈæsɪd/

acid

Meaning
a chemical substance that reacts with bases and has a sour taste
Example
Lemons contain citric acid.
C1 adjective /kəmˈpensətɔːri/

compensatory

Meaning
serving to make up for a loss, damage, or injury
Example
The court awarded him compensatory damages.
B2 noun /ˈaʊtbɜːrst/

outburst

Meaning
a sudden release of strong emotion or activity
Example
She had an angry outburst during the meeting.
B2 verb /sɜːrdʒ/

surge

Meaning
to move suddenly and powerfully forward or upward
Example
The crowd surged forward when the gates opened.
B2 adjective /ˈrɑː.ki/

Rocky

Meaning
full of rocks; unsteady; difficult
Example
The rocky path made hiking difficult for the tourists.
A1 noun /maʊs/

Mouse

Meaning
a small rodent with a long tail and typically gray or brown fur
Example
The little mouse hid behind the cabinet.
C2 noun /ˈɡæli/

galley

Meaning
A low, flat ship used in ancient times, often with sails and oars; also, a kitchen on a ship or aircraft.
Example
The galley was filled with the smell of freshly cooked food.
C2 noun /kəˈliːdʒən/

collegian

Meaning
a student of a college
Example
The collegians were preparing for the cultural festival.
B2 adjective ˈeθ.ɪ.kəl

ethical

Meaning
Relating to moral principles or the branch of knowledge dealing with these.
Example
Ethical considerations guide decisions.
A2 noun /rɒk/

rock

Meaning
a large, solid piece of mineral matter
Example
The mountain was made of solid rock.
A2 noun /ˈkloʊðɪŋ/

clothing

Meaning
items worn to cover the body; apparel collectively
Example
Warm clothing is essential in winter.
B2 noun /pætʃ/

Patch

Meaning
a small piece of material used to mend a hole; a small area of something different
Example
She sewed a patch over the hole in her jeans.
C2 noun /flɛk/

fleck

Meaning
a small spot or mark, often of a different color
Example
There was a fleck of paint on the floor.
C1 verb /ˌdiː.kəmˈprɛs/

decompress

Meaning
To relax and recover from stress or pressure.
Example
Taking deep breaths helps to decompress after a stressful day.
C2 verb /ˌweɪˈleɪ/

waylay

Meaning
to stop or interrupt someone unexpectedly, often to attack or detain them
Example
He was waylaid by reporters as he left the courthouse.
C1 noun /ɪnˈdɪrmənt/

endearment

Meaning
A word or phrase expressing affection or love.
Example
She whispered a gentle endearment to her child.
A2 noun /tuːθ/

Tooth

Meaning
a hard white structure in the mouth used for biting and chewing food
Example
She brushes her teeth twice a day.
B2 noun /ˈreb.əl/

Rebel

Meaning
a person who resists authority or control
Example
The young rebel refused to follow the school rules.
C1 noun /pəˈsweɪsɪvnes/

persuasiveness

Meaning
The quality of being good at persuading someone to do or believe something.
Example
Her persuasiveness convinced the team to follow her suggestions.
A2 noun /ˈrɛkɔːd/

record

Meaning
a written or spoken account of something
Example
I kept a record of all the meetings.
C1 adjective /ˌɪnɪkˈsplɪkəbl/

inexplicable

Meaning
Impossible to explain or understand.
Example
The sudden disappearance of the file was inexplicable.
C1 noun /ˌdɪs.kʌl.əˈreɪ.ʃən/

discoloration

Meaning
The process of changing or losing color; fading.
Example
Sun exposure causes discoloration of fabrics.
C2 adverb /ˈtrɛbli/

trebly

Meaning
in a triple manner or to a threefold degree
Example
The sound was trebly distorted through the old speakers.
A2 adjective /ˈemp.ti/

Empty

Meaning
containing nothing; vacant; without contents
Example
The glass is empty and needs to be refilled.
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.
A2 noun ˈhɪrəʊ

hero

Meaning
A person who is admired or idealized for courage, outstanding achievements, or noble qualities.
Example
Sydney Carton becomes the ultimate hero through his sacrifice.
B2 noun bjʊəˈrɒk.rə.si

bureaucracy

Meaning
A system of government in which most of the important decisions are made by state officials rather than by elected representatives.
Example
Excessive bureaucracy can slow down decision-making.
C2 noun /ˌkɒnsaɪˈniː/

consignee

Meaning
the person or company to whom goods are delivered
Example
The consignee received the shipment on time.
C1 noun, verb /wɪf/

whiff

Meaning
A brief, faint smell or puff of air; to get a quick smell of something.
Example
I caught a whiff of perfume as she passed by.
C2 verb /flɪt/

flit

Meaning
to move quickly and lightly from one place to another
Example
Butterflies flitted from flower to flower.
C2 noun /ˌiː.mɛnˈdeɪ.ʃən/

emendation

Meaning
a correction or improvement made to a text
Example
The article required several emendations before it was ready for print.
C1 noun /ˈʃʊɡ.ər ˈkæn.di/

Sugar candy

Meaning
crystallized sugar formed into small pieces; rock candy made from sugar syrup
Example
The children enjoyed eating colorful sugar candy at the festival.
C1 noun/verb /ˈætrəfi/

atrophy

Meaning
a decrease in size or wasting away of a body part, tissue, or ability due to lack of use
Example
Without regular exercise, muscles may atrophy over time.
B1 noun /ˈtreɪlər/

trailer

Meaning
a preview of a movie or a vehicle used for transporting goods
Example
The movie trailer was released last week.
B2 noun /ˈbriː.ðɪŋ tɛkˌniːks/

breathing techniques

Meaning
Methods of controlling breathing to achieve relaxation and improve health.
Example
Breathing techniques help in reducing stress and anxiety.
B2 noun /ˈdræɡ.ən.flaɪ/

Dragon-fly

Meaning
a large insect with four transparent wings that lives near water
Example
The dragonfly hovered over the pond.
B2 verb /ˌɪntərˈfɪər/

interfere

Meaning
to become involved in something that is not your concern; to hinder or obstruct
Example
Parents should not interfere in their children’s personal choices.
C2 noun /ˌnjʊə.rəʊˈdʒɛn.ɪ.sɪs/

neurogenesis

Meaning
The process of forming new nerve cells in the brain.
Example
Scientists are studying neurogenesis to understand brain health.
B1 noun /ˈtaɪ.təl/

Title

Meaning
the name of a book, movie, or other work; a word used before someone's name to show rank or status
Example
The title of the book is very interesting.
C2 adjective /ɪnˈtɛmpərət/

intemperate

Meaning
Lacking self-control; immoderate, especially in indulgence.
Example
The politician's intemperate remarks caused controversy.
B1 noun/verb /ˈkɒmplɪmənt/

compliment

Meaning
a polite expression of praise or admiration; to politely praise someone
Example
She complimented him on his excellent presentation.
C1 noun /ˈsuːdənɪm/

pseudonym

Meaning
a fictitious name used by an author instead of their real name
Example
Mark Twain was the pseudonym of Samuel Clemens.
B1 verb /spred/

spread

Meaning
to extend over a larger area; to distribute; to apply
Example
The news spread quickly through the town.
C1 noun /ˈɒf.sprɪŋ/

offspring

Meaning
a person's child or children; an animal's young
Example
The bird carefully fed its offspring.
C2 adjective /ɪˈkwɪvəkəl/

equivocal

Meaning
Open to more than one interpretation; ambiguous.
Example
His equivocal answer confused everyone.
B1 noun /ˌkrɪstiˈænɪti/

christianity

Meaning
the religion based on the teachings of Jesus Christ
Example
Christianity has millions of followers around the world.
C1 adjective /ˈsɒnɪk/

sonic

Meaning
Relating to or involving sound waves or speed of sound.
Example
The jet created a loud boom when it broke the sonic barrier.
B2 verb, noun /ɪkˈsplɔɪt/

exploit

Meaning
to make full use of and derive benefit from (a resource); to use someone unfairly for one’s own advantage
Example
The company was accused of exploiting child labor.
A2 verb /hiːt/

heat

Meaning
to make or become hot or warm
Example
Please heat the soup before serving.
C1 verb /dɪˈdjuːs/

deduce

Meaning
to reach a conclusion by reasoning or inference
Example
From the evidence, the detective deduced that the suspect was lying.
C1 verb /niːd/

knead

Meaning
to work dough or clay into a uniform mixture by pressing, folding, and stretching
Example
She kneads the dough until it becomes smooth.
C1 adjective ˈbɜːdʒənɪŋ

burgeoning

Meaning
Beginning to grow or increase rapidly; flourishing.
Example
The burgeoning tech industry has attracted many investors.
B2 noun /ˈhɑːrd.ʃɪp/

Hardship

Meaning
severe suffering or privation; difficulty or distress
Example
Despite facing many hardships during the war, the family remained united and hopeful.
B1 noun ˈtɑː.ɡɪt

target

Meaning
An object, person, or place selected as the aim of an attack or focus of attention.
Example
Achieving energy targets is critical for global progress.
A2 verb /ʃaɪn/

shine

Meaning
to give out a bright light or glow
Example
The sun will shine brightly tomorrow.
B1 verb /kənˈkluːd/

conclude

Meaning
to bring to an end; to decide or determine after consideration
Example
We will conclude the meeting at five o'clock.
B1 noun /rɪˈpɔːrtər/

reporter

Meaning
a person who reports news or information
Example
The reporter interviewed several people at the scene.
A2 noun /ˈɛər.laɪn/

airline

Meaning
A company that provides regular flights for passengers and goods.
Example
The airline announced a discount on international tickets.
B2 noun /əˈtɒm.ɪk ˈhæb.ɪts/

atomic habits

Meaning
Small but powerful habits that can bring big changes over time
Example
Developing atomic habits leads to long-term success.
B2 adjective /ɪnˈvaɪrənmənt ˈfrɛndli/

environment-friendly

Meaning
Designed or produced in a way that causes minimal harm to the environment, often using sustainable materials and processes that reduce ecological impact.
Example
Environment-friendly products are designed to reduce ecological damage.
B2 noun, verb /ˌɪnkənˈviːniəns/

inconvenience

Meaning
trouble or difficulty caused to someone; to cause trouble or difficulty to someone
Example
We apologize for any inconvenience caused by the delay.
C1 verb /ˈmɑːrdʒɪnəlaɪz/

marginalize

Meaning
To treat a person or group as unimportant or insignificant.
Example
The policy marginalized minority communities.
C2 adjective /ˌɛl.ɪˈdʒaɪ.ək/

elegiac

Meaning
Expressing sorrow, often for something past; resembling an elegy.
Example
The novel ends on an elegiac note, mourning the lost era.
C1 noun ˌrɛk.əˈlɛk.ʃən

Recollection

Meaning
Remembering past events or information
Example
His recollection of childhood memories was vivid.
A2 noun /blʌd/

Blood

Meaning
the red liquid that circulates in the arteries and veins of humans and animals, carrying oxygen to and carbon dioxide from the tissues of the body
Example
The doctor took a blood sample for testing.
C2 noun /ˌbædɪˈnɑːʒ/

badinage

Meaning
Playful and humorous conversation; banter.
Example
The friends enjoyed a light badinage over coffee.
C1 noun /krɛst/

crest

Meaning
the top of a hill, wave, or mountain; a symbol of identity
Example
The hikers reached the crest of the mountain at sunrise.
B1 noun /ˈeər fɔːrs/

Air force

Meaning
the military organization of a country that uses aircraft for fighting
Example
The air force conducted a training exercise over the mountains.
C1 adjective /ɪnˈkrɛdjələs/

incredulous

Meaning
unwilling or unable to believe something
Example
He gave her an incredulous look when she claimed she could fly.
C2 adjective /ˈdʒɔːnti/

jaunty

Meaning
Having a lively, cheerful, and self-confident manner or appearance.
Example
He walked into the room with a jaunty step.
A2 noun /məˈʃiːn/

machine

Meaning
A device with moving parts that uses energy to perform a particular task.
Example
This washing machine is very efficient.
C1 verb /ˈæbdɪkeɪt/

abdicate

Meaning
To give up a position of power or responsibility, especially a throne.
Example
The king decided to abdicate the throne.
B1 adverb /sɪɡˈnɪfɪkəntli/

significantly

Meaning
in a way that is large or important enough to have an effect
Example
The economy has significantly improved over the last decade.
C1 verb /rɪɡ/

rig

Meaning
to manipulate or control something dishonestly; to set up equipment
Example
The election was rigged by corrupt officials.
C1 noun /ˈrɑːstər/

roster

Meaning
A list or plan showing people’s duties or times when they are scheduled.
Example
The manager updated the staff roster for next week.
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 noun /dɪˌlæpɪˈdeɪʃən/

dilapidation

Meaning
The state of disrepair or ruin as a result of neglect.
Example
The old temple was in a state of dilapidation.
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.
B2 adverb /aɪˈrɒnɪkli/

ironically

Meaning
in a way that is contrary to what is expected or intended
Example
Ironically, the fire station burned down.
C1 noun /ˈdʒɒt.ər/

Jotter

Meaning
a small notebook for writing quick notes or reminders
Example
The student carried a jotter to write down important points during lectures.
C1 verb /əˈbriːvieɪt/

abbreviate

Meaning
To shorten a word, phrase, or text by leaving out letters or parts.
Example
We often abbreviate 'Doctor' to 'Dr'.
B2 noun /ˈmɪks.tʃər/

Mixture

Meaning
a combination of different substances or elements
Example
The cake batter is a mixture of flour, eggs, and milk.
C2 noun /ˈdɛkəˌpɒd/

decapod

Meaning
An arthropod with ten limbs, such as crabs, lobsters, and shrimps.
Example
The lobster is a well-known decapod.
B2 adjective /ˈsoʊ.vi.ət/

soviet

Meaning
relating to the Soviet Union or its government
Example
The Soviet era saw significant changes in Eastern Europe.
C2 noun /ˈhɜːrmɪtɪdʒ/

hermitage

Meaning
A secluded residence or retreat, often for a hermit or religious recluse.
Example
The monk spent years in a hermitage deep in the forest.
C1 adjective /riˈækʃəˌneri/

reactionary

Meaning
Opposing political or social progress or reform; extremely conservative.
Example
The group took a reactionary stance against the new policies.
C1 noun ˌriː.pɚˈkʌʃ.ənz

repercussions

Meaning
The unintended consequences or effects of an action or event.
Example
The new policy had unintended repercussions on the economy.
A2 noun /fəˈtɒɡrəfi/

photography

Meaning
the art or practice of taking and processing photographs
Example
She studied photography in college.
A2 adjective /ˈwʊdən/

wooden

Meaning
made of wood
Example
The house had beautiful wooden floors.
C1 adverb /ˌʌnkənˈvɛnʃənəli/

unconventionally

Meaning
in a way that is not based on or conforming to accepted standards or norms
Example
She dresses unconventionally, mixing bold colors and patterns that surprise everyone.
C2 noun /ˌdaɪvəˈɡeɪʃən/

divagation

Meaning
digression; wandering from a path or subject
Example
His lecture was full of divagation, making it hard to follow the main point.
B1 noun /ɪkˈsep.ʃən/

Exception

Meaning
a person or thing that is excluded from a general statement or does not follow a rule
Example
Most students passed the exam, with the exception of a few who were absent.
B1 noun /ˈbæɡɪdʒ/

Baggage

Meaning
suitcases and bags containing personal belongings; past experiences or problems that affect behavior
Example
Please collect your baggage from the conveyor belt at the airport.
C2 noun /bɑːrd/

bard

Meaning
a poet, traditionally one reciting epics and associated with oral traditions
Example
Shakespeare is often called the Bard of Avon.
B2 verb /dʒɑːɡ/

jog

Meaning
to run at a slow, steady pace for exercise
Example
She jogs every morning in the park.
C2 noun /ˈtændʒənsi/

tangency

Meaning
the condition of touching but not intersecting, especially in geometry
Example
The circle and the line are in a state of tangency at one point.
C2 adjective /əˈkjuː.zəˌtɔːr.i/

accusatory

Meaning
Suggesting blame or indicating someone has done wrong.
Example
He gave her an accusatory glance.
B2 noun /ˈspɛktrəm/

spectrum

Meaning
A range of different things, often related to colors, ideas, or classifications.
Example
The festival attracted people from across the political spectrum.
B1 noun /ˈhɑːrdˌwɛr/

hardware

Meaning
the physical parts of a computer or electronic system, such as the monitor, keyboard, and processor
Example
The company upgraded its computer hardware to improve performance.
B2 verb /dæʃ/

dash

Meaning
to move quickly and suddenly; to strike or break something violently
Example
She dashed across the street to catch the bus.
B2 adjective + noun æmˈbɪʃəs ɪnˈdevər

ambitious endeavor

Meaning
A bold and determined attempt to achieve something challenging.
Example
Artemis is an ambitious endeavor in space exploration.
B2 noun /ɪnˈvɒlvmənt/

involvement

Meaning
the act of taking part in something
Example
His involvement in the project was crucial.
C2 noun /bɛl/

belle

Meaning
A beautiful woman, especially the most attractive woman at a gathering.
Example
She was the belle of the ball that evening.
C2 adjective /ˌɪrɪˈdɛsənt/

iridescent

Meaning
showing luminous colors that seem to change when seen from different angles
Example
She wore an iridescent dress that sparkled in the light.
C2 noun (plural, informal) /skædz/

scads

Meaning
A large number or quantity of something (informal).
Example
She has scads of friends in the city.
C1 verb /ˈkwentʃɪŋ/

quenching

Meaning
The act of satisfying thirst or extinguishing something like fire.
Example
Drinking cold water was quenching her thirst.
A2 noun /ˈfiːtʃər/

feature

Meaning
a distinctive attribute or aspect of something; a characteristic
Example
The new phone has a unique camera feature.
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.
C2 verb /diːˈlɪmɪt/

delimit

Meaning
to fix the boundaries or limits of something
Example
The treaty was signed to delimit the borders of the two countries.
C1 noun /ɡrəˈtjuːɪti/

gratuity

Meaning
A sum of money given as a tip or a retirement benefit.
Example
The waiter received a generous gratuity for his excellent service.
B1 adjective ɪnˈdʌs.tri.əl

industrial

Meaning
Relating to or characterized by industry.
Example
Industrial sectors boost exports.
A2 noun /ˈsɪŋ.ər/

Singer

Meaning
a person who sings, especially as a job or profession
Example
The singer performed beautifully at the concert last night.
B2 noun /ˌrɪəlɪˈzeɪʃən/

realization

Meaning
the act of becoming fully aware of something as a fact
Example
Her realization of the problem helped solve the issue.
C2 adjective /ˈrɛpərəbəl/

reparable

Meaning
able to be repaired or fixed
Example
The damage to the car was serious but still reparable.
C2 noun /ˌænθrəpəˈsɛntrɪzəm/

anthropocentrism

Meaning
The belief that human beings are the most important or central element of existence.
Example
Anthropocentrism often shapes environmental policies.
C2 noun /ˌjuːzɜːrˈpeɪʃən/

usurpation

Meaning
The act of taking someone's power or property illegally or by force.
Example
The general's usurpation of the presidency led to political unrest.
C1 noun /ˌkɒk.əˈtuː/

Cockatoo

Meaning
a large parrot with a prominent crest that can be raised or lowered
Example
The white cockatoo raised its beautiful crest.
C1 adjective /ɪnˈtjuː.ɪ.tɪv/

intuitive

Meaning
Based on instinctive understanding rather than reasoning.
Example
The software has an intuitive design that makes it easy to use.
B2 noun /foʊm/

Foam

Meaning
a mass of small bubbles formed on or in liquid; frothy white mass
Example
The waves crashed against the rocks, creating white foam on the shore.
C1 adjective /dɪˈmɛntɪd/

demented

Meaning
behaving irrationally due to mental illness or extreme excitement
Example
He looked demented after hearing the shocking news.