greenhouse effect
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B2 noun ˈɡriːn.haʊs ɪˌfɛkt

greenhouse effect

Meaning
The trapping of the sun's warmth in a planet's lower atmosphere due to the greater transparency of the atmosphere to visible radiation from the sun than to infrared radiation emitted from the planet's surface.
Example
The greenhouse effect is increasing global temperatures.
A2 noun /ˈdʌst.bɪn/

Dustbin

Meaning
a container for holding waste or garbage before disposal
Example
Please throw the paper into the dustbin after use.
A2 number /ˈfɪfti/

fifty

Meaning
the number 50
Example
The stadium can hold fifty thousand people.
B1 noun /əˈtʃiːvmənt/

achievement

Meaning
Something that has been successfully completed or accomplished through effort or skill.
Example
Graduating from university was her greatest achievement.
C2 adjective /ˈwɪznd/

wizened

Meaning
Shriveled, wrinkled, or withered, often due to age.
Example
The wizened tree stood in the field for centuries.
B1 verb ɪkˈspændɪŋ

expanding

Meaning
Becoming larger or more extensive; increasing in size, number, or importance.
Example
Expanding education opportunities helps reduce inequality.
C1 adjective /ˈpʊʃi/

pushy

Meaning
excessively assertive or aggressive, often annoyingly so
Example
The salesperson was too pushy, which drove customers away.
B2 adjective /ˈruː.tɪd/

Rooted

Meaning
deeply established; firmly fixed
Example
His beliefs are deeply rooted in tradition.
C1 noun /ˈpəʊstˌskrɪpt/

postscript

Meaning
an additional remark at the end of a letter or text, after the signature
Example
She added a brief postscript to thank him again.
A2 noun /ˈpeɪntɪŋ/

painting

Meaning
a picture or design made using paint
Example
The painting on the wall was created by a famous artist.
B2 verb /kənˈveɪ/

convey

Meaning
To communicate or make known; to transport or carry from one place to another.
Example
The teacher conveys the lesson clearly to students.
C1 verb /ˈkʌn.dʒər/

conjure

Meaning
to summon something as if by magic; to imagine vividly
Example
The magician conjured a rabbit out of the hat.
B2 adjective /ɪnˈtækt/

intact

Meaning
Remaining whole, complete, and undamaged.
Example
Despite the storm, the old house remained intact.
C2 verb /bɪˈteɪk/

betake

Meaning
to go or resort to a place or course of action, especially as a response; to apply oneself
Example
After dinner, she betook herself to her room to read.
B1 noun /ˈprɛər/

prayer

Meaning
a solemn request for help or expression of thanks addressed to God or another deity
Example
She recited a prayer before the meal.
C1 noun /ˌdɛməˈlɪʃən/

demolition

Meaning
the act or process of destroying a building or structure
Example
The demolition of the old factory took several weeks.
C1 verb /ɪˈnʌnsieɪt/

enunciate

Meaning
to pronounce words clearly; to express an idea clearly
Example
The teacher asked him to enunciate each word.
C1 verb /ɪmˈpiːd/

impede

Meaning
To obstruct or hinder the progress or development of something.
Example
Lack of funds can impede business growth.
C1 verb /ɪˈkɒnəmaɪz/

economize

Meaning
To reduce spending or use resources carefully.
Example
Families are trying to economize by cutting unnecessary expenses.
A2 pronoun /ɪtˈsɛlf/

itself

Meaning
Used to emphasize the thing just mentioned; by its own power or effort.
Example
The cat cleaned itself after eating.
C2 noun /ˈdɛkəˌpɒd/

decapod

Meaning
An arthropod with ten limbs, such as crabs, lobsters, and shrimps.
Example
The lobster is a well-known decapod.
C1 verb, noun /sæp/

sap

Meaning
As a noun: the vital fluid in plants; As a verb: to gradually weaken or drain strength.
Example
The long journey began to sap his energy.
A1 pronoun /ʌs/

us

Meaning
used to refer to the speaker and one or more other people as the object of a verb or preposition
Example
She gave us a gift.
B2 adjective /ʌnəˈfreɪd/

unafraid

Meaning
Not feeling fear; brave or courageous
Example
She walked into the dark room, unafraid of what might be inside.
B1 noun dɛt

debt

Meaning
A sum of money that is owed or due.
Example
High levels of debt can lead to a financial crisis.
A2 noun /ˈspiːkər/

speaker

Meaning
a person who speaks or talks, especially as an occupation
Example
The speaker delivered an inspiring speech at the conference.
B2 verb /ɪnˈtriːɡ/

intrigue

Meaning
to arouse curiosity or interest; to make someone fascinated
Example
The mystery novel will intrigue any reader.
C1 adjective /ˈsiːzənəbəl/

Seasonable

Meaning
occurring at the right time; appropriate for the season; timely
Example
The seasonable rain helped the farmers with their crops.
C2 noun /ˈwɑːmpəm/

wampum

Meaning
beads made by Native Americans from shells, used as money or decoration
Example
The tribe traded furs for wampum.
C1 adjective /ˌser.ɪˈmoʊ.ni.əl/

Ceremonial

Meaning
relating to or used in ceremonies; formal and ritualistic
Example
The ceremonial dress was worn during the royal wedding.
C2 noun /ˈhɛksəˌpɒd/

hexapod

Meaning
An insect or other organism with six legs.
Example
The scientist observed a hexapod crawling on the leaf.
C1 noun /ˌæn.əˈnɪm.ə.ti/

anonymity

Meaning
The state of being anonymous; having one's identity kept secret or unknown.
Example
Online anonymity protects users from cyber threats.
B2 adjective /kəmˈpæʃənət/

Compassionate

Meaning
feeling or showing sympathy and concern for others who are suffering
Example
The compassionate nurse took extra time to comfort the worried patients.
C1 verb /daɪˈluːt/

dilute

Meaning
To make a liquid thinner or weaker by adding water or another solvent.
Example
You should dilute the juice with water before serving it to children.
C1 noun /ˈænti ˈeəkræft ɡʌn/

Anti-aircraft-gun

Meaning
a weapon designed to attack aircraft from the ground
Example
The anti-aircraft gun was positioned to defend the military base.
B2 noun /vɜːrdʒ/

Verge

Meaning
the edge or border of something; very close to happening
Example
She was on the verge of tears.
A2 verb /pruːv/

prove

Meaning
to show that something is true; to demonstrate
Example
The evidence will prove his innocence.
C2 noun /ˈzɛfər/

zephyr

Meaning
A soft gentle breeze.
Example
A warm zephyr blew through the valley.
B2 adverb /ɪkˈstɛnsɪvli/

extensively

Meaning
in a thorough or wide-ranging manner
Example
She traveled extensively across Europe for her research.
C1 noun /ˈkærət/

carat

Meaning
a unit of weight for precious stones, equal to 200 milligrams
Example
She received a two-carat diamond ring for her engagement.
C2 verb /ˌɪntərˈsiːd/

intercede

Meaning
to act or plead on behalf of someone in difficulty or trouble; to intervene between parties to help resolve a dispute
Example
She interceded with the teacher to give her brother another chance.
C1 noun /ˈtraɪ.pɒd/

tripod

Meaning
A three-legged stand used to support a camera, telescope, or other object.
Example
The photographer set up his camera on a tripod.
C1 noun /ˈkæn.dɚ/

candor

Meaning
The quality of being open, honest, and straightforward in speech or expression.
Example
She spoke with candor about the challenges she faced.
C2 adjective /juːˈdʒɛnɪk/

eugenic

Meaning
Relating to or aiming at improving the genetic quality of a population.
Example
In the early 20th century, some scientists supported eugenic policies.
C1 adjective /ʌnˈmaɪndfəl/

Unmindful

Meaning
not paying attention; careless; heedless
Example
She was unmindful of the danger around her.
C1 verb /əbˈsɛs/

obsess

Meaning
To preoccupy or fill the mind of someone continually and to an excessive degree.
Example
She tends to obsess over small details.
C1 noun /ˈkɒrənər/

coroner

Meaning
an official who investigates sudden, violent, or suspicious deaths
Example
The coroner determined the cause of death was natural.
C1 verb /ɡoʊd/

goad

Meaning
to provoke, annoy, or urge someone to take action
Example
He tried to goad his opponent into making a mistake.
B2 verb /trænzˈmɪt/

transmit

Meaning
to send or pass something from one place or person to another
Example
The antenna can transmit signals over a long distance.
B2 adjective ˌsɪm.əlˈteɪ.ni.əs

simultaneous

Meaning
Occurring, operating, or done at the same time.
Example
Simultaneous crop failures affect global food supply.
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.
C1 noun /ˌdʒerənˈtɑːlədʒi/

gerontology

Meaning
The scientific study of old age and the process of aging.
Example
She chose to specialize in gerontology after completing medical school.
C1 adjective /ɪɡˈzæspəˌreɪtɪd/

exasperated

Meaning
greatly annoyed or irritated
Example
She gave him an exasperated look after his repeated mistakes.
B2 adjective /ˈfɛdərəl/

federal

Meaning
Relating to the central government of a federation.
Example
The federal government passed a new law on healthcare.
C1 adjective /ˈæm.ɪ.kə.bəl/

amicable

Meaning
Having a spirit of friendliness; without serious disagreement or rancor.
Example
They reached an amicable agreement.
C2 noun /ˈdɛvɪltrɪ/

deviltry

Meaning
Cruel or malicious behavior; mischief with an evil aspect.
Example
The villain’s deviltry terrified the townsfolk.
C2 noun /kəˈleɪʃən/

collation

Meaning
the act of collecting, comparing, and arranging in proper order
Example
The librarian spent hours on the collation of old manuscripts.
B2 verb /ˌmɪsˈjuːz/

misuse

Meaning
To use something incorrectly or for the wrong purpose.
Example
Misusing social media profiles can harm relationships.
B2 noun /ˈtriː.oʊ/

trio

Meaning
A group of three people or things, especially in music or performance.
Example
The jazz trio played beautifully at the concert.
C2 adjective /ˌɛkspəˈdɪʃəs/

expeditious

Meaning
Done with speed and efficiency.
Example
The expeditious delivery of the package was appreciated.
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.
B1 noun /ˈpɪdʒ.ən/

Pigeon

Meaning
a grey and white bird with a fat body that is common in cities
Example
The pigeon pecked at breadcrumbs on the sidewalk.
B2 adjective /ˈveɪ.kənt/

Vacant

Meaning
empty; not occupied; available
Example
There is a vacant apartment on the second floor.
B2 adjective; verb (past/participle) /əˈʃʊrd/

assured

Meaning
confident and certain; guaranteed or made certain
Example
She felt assured that everything would work out.
B2 noun /ˌmedɪˈkeɪʃən/

medication

Meaning
a drug or other form of medicine used to treat or prevent disease
Example
The doctor prescribed medication for his headache.
B1 verb /rɪˈlaɪ/

rely

Meaning
to depend on or trust someone or something
Example
I rely on my friends for support.
B1 noun /ˈpæk.ɪt/

packet

Meaning
a small package or container holding items or information
Example
He bought a packet of biscuits from the shop.
C1 noun /ˈkɒntrəbænd/

contraband

Meaning
goods that are illegal to import, export, or possess
Example
The police seized a shipment of contraband cigarettes.
C2 noun /sɪlf/

sylph

Meaning
A mythical spirit of the air; also refers to a slender, graceful woman.
Example
She moved across the stage like a sylph, light and graceful.
B2 interjection /ˈbrɑː.voʊ/

bravo

Meaning
used to express approval, admiration, or praise
Example
The audience shouted 'Bravo!' after the stunning performance.
C1 noun /ˈiːdɪkt/

edict

Meaning
An official order, proclamation, or decree issued by an authority.
Example
The king issued an edict banning smoking in public places.
B2 noun /ɪnˈtɛnsəti/

intensity

Meaning
The quality of being extreme, strong, or forceful in degree.
Example
The intensity of the storm frightened the villagers.
A2 noun /ˈbɪljən/

billion

Meaning
the number 1,000,000,000 (one thousand million)
Example
The company is worth more than a billion dollars.
A2 noun/verb /puːl/

pool

Meaning
a small body of still water, or a game played in a rectangular table with balls
Example
The children swam in the pool all afternoon.
C2 adjective /daɪˈɡrɛsɪv/

digressive

Meaning
Tending to depart from the main subject in speech or writing.
Example
The speaker's digressive style made the lecture difficult to follow.
C2 verb /bɪˈleɪt/

belate

Meaning
to delay or make late
Example
Heavy traffic belated our arrival at the party.
C2 noun/verb /ˈʌpˌkæst/

upcast

Meaning
Verb: To cast or throw upward. Noun: Something thrown or directed upward.
Example
The fisherman upcast his net into the air.
B2 noun /pænt/

Pant

Meaning
a piece of clothing worn on the lower body covering each leg separately
Example
She bought a new pair of pants for the party.
C1 adjective /vɪnˈdɪk.tɪv/

Vindictive

Meaning
having or showing a strong or unreasoning desire for revenge
Example
His vindictive behavior towards his former colleagues was unprofessional.
C1 adjective /əˈbliːk/

Oblique

Meaning
slanting; diagonal; indirect or evasive
Example
The artist drew an oblique line across the canvas.
C1 noun ˌnæʃ.ən.ə.laɪˈzeɪ.ʃən

nationalization

Meaning
The process of a government taking control of private property or industry.
Example
The nationalization of banks was aimed at stabilizing the economy.
B2 verb /ˌʌndərˈteɪk/

undertake

Meaning
to commit to and begin a task or project; to take on responsibility
Example
She decided to undertake a challenging project.
B2 noun /ˈruːstər/

rooster

Meaning
A male domestic chicken, especially one that crows.
Example
The rooster crowed at dawn, waking up the whole village.
C2 noun /ˈvɜːrbiɪdʒ/

verbiage

Meaning
Excessive use of words, often with little content or meaning; wordiness.
Example
The contract was filled with unnecessary legal verbiage.
B1 adjective /ˈteknɪkəl/

Technical

Meaning
relating to or involving special skills or knowledge; requiring specialized training
Example
The manual contains technical instructions for operating the machine.
A1 noun /dɪˈsɛmbər/

december

Meaning
the twelfth and last month of the year in the Gregorian calendar
Example
December is usually cold in many countries.
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.
C1 adjective /ɪkˈsplɔɪtətɪv/

exploitative

Meaning
making use of a situation or people unfairly and unethically for one's own advantage
Example
The workers protested against the exploitative practices of the factory.
C1 adjective /ˈpɛtjʊlənt/

petulant

Meaning
Childishly sulky or bad-tempered.
Example
The child became petulant when denied more candy.
C1 noun /ˈkaʊərdɪs/

cowardice

Meaning
lack of courage; behavior showing fear
Example
His cowardice prevented him from speaking up.
A2 noun /æd/

ad

Meaning
a notice or announcement in a public medium promoting a product, service, or event
Example
The company released a new ad for their smartphone.
C2 adjective /pəˈrɒnɪməs/

paronymous

Meaning
Words that are derived from the same root or sound alike.
Example
The words 'effect' and 'effective' are paronymous.
B2 noun, verb /tæɡ/

tag

Meaning
a label attached to something for identification or information; or to attach such a label
Example
She tagged her luggage before boarding the plane.
C1 noun/verb /ˈræfəl/

raffle

Meaning
A means of raising money by selling numbered tickets, one or more of which are drawn at random for a prize; to sell something in such a lottery.
Example
The charity decided to raffle a bicycle to raise funds.
C2 adjective /mjuːˈnɪfɪsənt/

munificent

Meaning
extremely generous; giving freely and abundantly
Example
She made a munificent donation to the orphanage.
B2 noun/verb /skræp/

scrap

Meaning
A small piece of something; to discard or get rid of something.
Example
He used a scrap of paper to jot down the number.
C2 noun /ɪmˈpʌlʃən/

impulsion

Meaning
a strong urge or drive to act; the act of impelling
Example
His impulsion to travel made him leave his job suddenly.
C2 noun /nɑnˈen.tə.ti/

Nonentity

Meaning
a person of no importance or influence; something that does not exist
Example
He felt like a nonentity in the large corporation.
C1 adjective /ˈstɪltɪd/

stilted

Meaning
Speech or writing that is stiff, unnatural, or overly formal.
Example
His speech sounded stilted and rehearsed.
B1 verb /prəˈpoʊz/

propose

Meaning
to suggest an idea or plan for consideration; to ask someone to marry you
Example
I propose we take a short break.
B1 noun ˈstrʌɡ.əl

struggle

Meaning
A forceful or violent effort to get free of restraint or resist attack; a determined effort under difficult circumstances.
Example
The struggle for independence united the nation.
B2 verb /ɪˈmɪt/

emit

Meaning
to send out something such as light, heat, sound, or gas
Example
The factory emits smoke into the atmosphere.
A2 adjective /ˈstuː.pɪd/

Stupid

Meaning
lacking intelligence or common sense; foolish
Example
It was stupid of me to forget my umbrella on a rainy day.
B2 noun /ˈwɪkɪdnəs/

wickedness

Meaning
Evil or morally bad behavior.
Example
The story highlights the wickedness of the cruel king.
C1 adjective /ˈɡriːvəs/

grievous

Meaning
Causing great pain, suffering, or sorrow.
Example
The accident was a grievous blow to the community.
A2 noun /spɒt/

spot

Meaning
a particular place or position
Example
I found a great spot for a picnic in the park.
C1 noun səˈsteɪnəbəl ˈpræktɪsɪz

sustainable practices

Meaning
Methods and activities that can be maintained over time without depleting natural resources or harming the environment.
Example
Sustainable practices are vital for environmental preservation.
C1 verb /ˈsɔːntər/

saunter

Meaning
to walk in a slow, relaxed manner without hurry or effort
Example
We sauntered along the riverside, stopping now and then to watch the boats.
B2 noun /ˈtiːmmeɪt/

teammate

Meaning
a member of the same team
Example
He congratulated his teammate after scoring the goal.
B1 noun ˌhjuː.mən ˈraɪts

human rights

Meaning
A right that is believed to belong justifiably to every person.
Example
Human rights protect individual freedoms.
C1 noun /ˈmɑːrtərdəm/

Martyrdom

Meaning
The suffering of death on account of adherence to a cause or principle
Example
His martyrdom inspired countless others to join the freedom movement.
C1 noun, adjective /dɪˈrɪvətɪv/

derivative

Meaning
Something that is based on another source; in math, a measure of how a function changes.
Example
The film was criticized for being too derivative of earlier works.
B2 adjective /ˈskɛptɪkəl/

skeptical

Meaning
not easily convinced; having doubts or reservations
Example
She was skeptical about the new plan.
C1 verb /ˈpɪlɪdʒ/

pillage

Meaning
to rob or plunder a place, especially during war
Example
The invading army pillaged the village and took all valuables.
C2 adjective /ˈluːpi/

loopy

Meaning
crazy, silly, or eccentric
Example
After working all night, he felt a little loopy.
C2 noun /ˌpæliˈeɪʃən/

palliation

Meaning
relief of symptoms without curing the underlying disease or problem
Example
Palliation is often the focus of care for terminally ill patients.
C2 verb /ɪkˈskruːʃieɪt/

excruciate

Meaning
to cause intense pain or suffering
Example
The injury excruciated him with unbearable pain.
C1 verb /riˈɪtəreɪt/

reiterate

Meaning
To say something again or repeatedly for emphasis or clarity.
Example
The teacher reiterated the importance of honesty.
C1 adjective /rɪˈsɛsɪv/

recessive

Meaning
In genetics, relating to a trait that is expressed only when two copies of the gene are present.
Example
Blue eye color is often a recessive trait.
B2 adjective /prəˈnaʊnst/

pronounced

Meaning
very noticeable or strongly marked
Example
There is a pronounced difference between the two styles.
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.