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A1 modal verb /kʊd/

could

Meaning
Used to indicate possibility, ability, or permission in the past or as a polite suggestion.
Example
He could swim when he was a child.
C2 noun /ɪˈreɪdiəns/

irradiance

Meaning
the quality of shining brightly; the intensity of light falling on a surface
Example
The irradiance of the sun at noon was overwhelming.
C1 adjective /ʌnˈɡɑː.dɪd/

Unguarded

Meaning
not protected or defended; careless about revealing private thoughts or information
Example
In an unguarded moment, she revealed her true feelings about the project.
B1 verb /ɪnˈkriːst/

increased

Meaning
became greater in size, amount, or degree
Example
The company's revenue increased last year.
C1 noun /swiːt.laɪm/

Sweetlime

Meaning
a citrus fruit that is sweeter and less acidic than regular lime
Example
The sweetlime juice was refreshing on a hot day.
C1 noun ˌnæn.oʊ.tekˈnɒl.ə.dʒi

nanotechnology

Meaning
The branch of technology that deals with dimensions and tolerances of less than 100 nanometers.
Example
Nanotechnology is advancing medical treatments.
C1 adjective /ˈdaʊ.ər/

dour

Meaning
relentlessly severe, stern, or gloomy in manner or appearance
Example
His dour expression made the meeting uncomfortable.
C1 noun /rɪˈflɛktər/

reflector

Meaning
A surface or device that reflects light, heat, or sound, often used to direct beams or improve visibility.
Example
The cyclist attached a red reflector to the back of his bike for safety.
C2 noun/adjective /ˈsaɪklɔɪd/

cycloid

Meaning
a curve traced by a point on the rim of a circle as it rolls along a straight line
Example
The cycloid is often studied in mathematics and physics.
C1 verb /ˌdɪsəˈlaʊ/

disallow

Meaning
to refuse to allow or accept something
Example
The referee disallowed the goal for offside.
C1 noun /ˈsəʊdiəm/

sodium

Meaning
a soft, silver-white chemical element that is highly reactive and found in salt.
Example
Sodium is an essential element for maintaining fluid balance in the body.
C2 verb /ˈeksɔːrsaɪz/

exorcise

Meaning
To drive out an evil spirit or bad influence through rituals or prayers.
Example
The priest was called to exorcise the spirit from the house.
B1 adjective /drəˈmæt.ɪk/

Dramatic

Meaning
relating to drama; sudden and striking; exciting and impressive
Example
The dramatic sunset painted the sky in brilliant colors.
C2 prefix /dɪs-/

dys-

Meaning
A prefix meaning abnormal, bad, difficult, or impaired.
Example
Words like 'dysfunction' and 'dyslexia' use the prefix dys- to indicate difficulty or impairment.
B2 adverb /ˌnɛvəðəˈlɛs/

nevertheless

Meaning
in spite of that; however
Example
He was tired; nevertheless, he kept working.
C2 noun /ɡruːəl/

Gruel

Meaning
a thin liquid food of oatmeal or another meal boiled in milk or water
Example
The sick patient could only eat gruel.
C1 noun ɪˌlæˈstɪs.ə.ti

elasticity

Meaning
The responsiveness of demand or supply to changes in price.
Example
The elasticity of demand for luxury goods is high.
C1 noun /ˈrɒstrəm/

rostrum

Meaning
A raised platform for speakers, performers, or leaders.
Example
The politician delivered a speech from the rostrum.
B2 noun /məʊˈbɪləti/

mobility

Meaning
The ability to move or be moved freely and easily; the quality of being mobile.
Example
The mobility of workers is essential for the success of the project.
B2 noun; verb /ˈlaɪnʌp/

line-up

Meaning
a group or arrangement of people or things in a line; to arrange people or things in a row or planned order
Example
The coach announced the team line-up before the match.
C1 noun /ˈmænəˌrɪzəm/

Mannerism

Meaning
A habitual gesture or way of speaking or behaving; an idiosyncrasy
Example
His constant throat clearing had become an annoying mannerism.
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.
C2 noun /ˌvæs.ɪˈleɪ.ʃən/

Vacillation

Meaning
the inability to decide between different opinions or actions; indecision
Example
His constant vacillation between career choices frustrated his parents.
C1 noun ˈkɑːr.bən ˌsiː.kwəˈstreɪ.ʃən

carbon sequestration

Meaning
The process of capture and long-term storage of atmospheric carbon dioxide to mitigate or defer global warming.
Example
Forests play a key role in carbon sequestration.
B1 adjective /ˈdiː.teɪld/

detailed

Meaning
Having many details; very thorough.
Example
The report provided a detailed analysis of the situation.
C1 noun/verb /ˈtæm.pər.ɪŋ/

tampering

Meaning
The action of interfering with something in order to cause damage or make unauthorized alterations.
Example
Tampering with evidence is a criminal offense.
C2 noun /ˈpɛstɪləns/

pestilence

Meaning
A deadly or virulent epidemic disease that spreads rapidly.
Example
The medieval city was devastated by a pestilence.
C2 adjective /ɪˈbʊliənt/

ebullient

Meaning
cheerful and full of energy
Example
She was ebullient after receiving the good news.
B1 noun sɪvɪˈlɪzeɪʃənz

civilizations

Meaning
The stage of human social development and organization that is considered most advanced.
Example
Ancient civilizations developed complex systems of governance.
C2 noun /maɪˈkrɑː.skə.pi/

microscopy

Meaning
The use of a microscope to observe small objects or organisms.
Example
Microscopy revealed the structure of the cells.
C1 noun /kəˈlaɪdəˌskoʊp/

kaleidoscope

Meaning
A toy or instrument with mirrors and colored pieces that create changing patterns when rotated; also used metaphorically for a constantly changing sequence of patterns or elements.
Example
The city lights turned into a kaleidoscope of colors as the festival began.
C2 noun /kɪln/

kiln

Meaning
a furnace or oven for burning, baking, or drying, especially one for firing pottery or bricks
Example
The potter placed the clay pots into the kiln for firing.
B2 noun ˈæmbɪəns

ambience

Meaning
The character and atmosphere of a place.
Example
The restaurant's ambience was relaxed and inviting, perfect for a casual dinner.
C1 noun /ˈtjuːmʌlt/

tumult

Meaning
A loud, confused noise, especially caused by a crowd; commotion or disorder.
Example
The protest created a tumult in the city square.
A2 verb /ˈdraɪvɪŋ/

driving

Meaning
the act of controlling and operating a vehicle; guiding or motivating something forward
Example
She loves driving along the coast on weekends.
A2 adjective/noun /ˈaɪrɪʃ/

irish

Meaning
relating to Ireland, its people, or its language
Example
The Irish countryside is very beautiful.
C1 verb /əˈfɪliˌeɪt/

affiliate

Meaning
to officially attach or connect (a group or organization) to a larger body
Example
The school is affiliated with the local university.
B2 adjective /ˈstʌf.i/

Stuffy

Meaning
lacking fresh air; poorly ventilated; formal and conservative in attitude
Example
The room was stuffy and needed fresh air.
C1 verb /mɔːl/

maul

Meaning
To wound or injure someone by scratching or tearing; to handle roughly.
Example
The bear mauled the camper in the forest.
C1 noun /treɪd fəˌsɪl.ɪˈteɪ.ʃən/

trade facilitation

Meaning
The simplification, modernization and harmonization of export and import processes.
Example
Trade facilitation boosts economic growth.
C1 verb /daʊs/

douse

Meaning
to pour liquid over; to extinguish a fire or light
Example
Firefighters doused the flames with water.
C2 adjective /əˈsɜːrbɪk/

acerbic

Meaning
sharp, harsh, or bitter in tone or taste
Example
His acerbic comments offended many people in the meeting.
A2 noun /ˈpɜːr.pəl/

Purple

Meaning
a color intermediate between red and blue; violet color
Example
The purple flowers bloomed beautifully in the garden.
C2 verb əˈtɛn.ju.eɪt

attenuate

Meaning
To reduce the force, effect, or value of something; to make weak or thin.
Example
The medicine helps attenuate the pain.
B2 adjective /ˈstɑː.ri/

Starry

Meaning
full of stars; shining like stars; relating to stars
Example
We enjoyed the starry night sky while camping in the mountains.
B2 adjective /dɪsˈɡʌstɪd/

disgusted

Meaning
feeling a strong sense of dislike or revulsion
Example
She was disgusted by the way he treated the animals.
B2 verb /ˈæktɪveɪt/

activate

Meaning
to make something start or function
Example
She pressed the button to activate the machine.
C2 noun /ˈfɔːrˌpiːk/

forepeak

Meaning
The compartment in the forward part of a ship, often used for storage.
Example
The sailors stored extra ropes in the forepeak.
C2 noun /ˌkɑːnfɔːrˈmeɪʃən/

conformation

Meaning
The shape, structure, or arrangement of something.
Example
The scientist studied the molecular conformation of the protein.
C1 adjective /ˈθɪŋ.kə.bəl/

thinkable

Meaning
Capable of being imagined or conceived; possible to consider or believe
Example
It is hard to believe that such an outcome is even thinkable.
A2 verb /kaʊnt/

count

Meaning
to determine the total number of something
Example
She carefully counted the money on the table.
C2 adjective /sɛnˈsɔːriəs/

censorious

Meaning
severely critical of others
Example
She was always censorious about her colleagues' mistakes.
B2 noun /ˌdɛm.əˈɡræf.ɪks/

Demographics

Meaning
Statistical data relating to the population and particular groups within it.
Example
Demographics help in targeted advertising.
B2 noun /ˈtɜːrkwɔɪz/

turquoise

Meaning
a greenish-blue color or gemstone
Example
She wore a necklace with a beautiful turquoise stone.
B2 adjective /hɪˈstɛrɪkəl/

hysterical

Meaning
Extremely funny or uncontrollably emotional.
Example
The comedian's jokes were absolutely hysterical.
C1 noun /ˈhʌbʌb/

hubbub

Meaning
a loud noise caused by a crowd of people talking or shouting
Example
There was a hubbub in the market as the sale began.
B2 noun/verb /bʌst/

bust

Meaning
As a noun: A sculpture of a person's head, shoulders, and chest; As a verb: To break, smash, or arrest.
Example
The police busted the gang last night.
A1 noun /ˈhʌzbənd/

husband

Meaning
A married man regarded in relation to his spouse.
Example
Her husband is very supportive of her career.
B1 verb /əˈtʃiːv/

achieve

Meaning
to successfully bring about or reach a desired goal or result
Example
She worked hard to achieve her dream of becoming a doctor.
C2 noun /ɪmˌprɒb.əˈbɪl.ə.ti/

Improbability

Meaning
the quality or state of being improbable; unlikely to be true or to happen
Example
The improbability of winning the lottery twice didn't stop her from buying tickets.
B1 noun /ˈbɒksər/

boxer

Meaning
a person who fights in the sport of boxing; a type of short loose-fitting underwear; a breed of medium-to-large dog
Example
The boxer trained hard every morning before the championship match.
C1 adjective /ˈfuːlpruːf/

foolproof

Meaning
Designed to be very easy to use or understand, leaving no possibility of failure or error.
Example
The new software has a foolproof installation process.
C2 adjective /ˌpɪkəˈrɛsk/

picaresque

Meaning
relating to a style of fiction depicting the adventures of a roguish hero
Example
The novel is a picaresque tale of a clever vagabond.
C2 adjective /ˌsuːpərˈæn.ju.eɪ.tɪd/

superannuated

Meaning
old and no longer useful or valid; retired due to age
Example
The factory was filled with superannuated machines that slowed production.
B2 noun /er/

Heir

Meaning
a person legally entitled to the property or rank of another on that person's death
Example
The young prince was the rightful heir to the throne and would become king someday.
C1 adjective ˌɪn.təˈmɪt.ənt

intermittent

Meaning
Happening irregularly, not continuously.
Example
The rain was intermittent throughout the day.
A2 noun /ˈɔːdiəʊ/

audio

Meaning
sound, especially when recorded or transmitted
Example
The audio quality of the podcast was excellent.
C2 noun /ˈhɛʃ.ən/

Hessian

Meaning
a strong coarse fabric made from jute or hemp, used for sacks and wrapping
Example
The farmer stored grain in hessian sacks.
C2 noun /əˈstɪɡmətɪzəm/

astigmatism

Meaning
An eye defect causing blurred vision due to irregular curvature of the cornea or lens.
Example
She wears glasses to correct her astigmatism.
C1 adjective /ˈræmʃækəl/

ramshackle

Meaning
poorly built or maintained; in a state of disrepair
Example
They lived in a ramshackle old house on the edge of town.
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 verb /ˈɪnəveɪt/

innovate

Meaning
To introduce new methods, ideas, or products.
Example
The company must innovate to stay ahead of its competitors.
A2 noun /kæmp/

Camp

Meaning
a place where soldiers live temporarily; a place with tents or huts for temporary accommodation
Example
The military established a camp near the border.
A1 adjective /taɪəd/

Tired

Meaning
feeling exhausted; in need of sleep or rest
Example
I am too tired to continue working.
C2 noun /kəˈpriːs/

caprice

Meaning
a sudden, unpredictable change of mood or behavior
Example
She bought the expensive dress on a caprice.
C2 noun /sɪˈrɒkoʊ/

sirocco

Meaning
A hot, dry wind blowing from North Africa across the Mediterranean to southern Europe.
Example
The sirocco made the city unbearably hot and dusty.
C1 noun /krʊk/

crook

Meaning
a dishonest person, especially a criminal
Example
The police finally caught the crook who had been stealing cars.
C2 adverb /pəˈfɔːs/

perforce

Meaning
by necessity; inevitably
Example
He had to perforce accept the decision.
C2 adverb /əˈsʌndər/

asunder

Meaning
into separate parts; apart
Example
The ancient empire was torn asunder by war.
B2 adjective /kəʊˈhɪə.rənt/

coherent

Meaning
Logical and consistent; forming a unified whole; clear and easy to understand.
Example
His speech was clear and coherent.
B2 verb /əˈkɒmədeɪt/

accommodate

Meaning
To provide lodging, space, or meet the needs of someone.
Example
The hotel can accommodate up to 200 guests.
B2 noun ˌrɛstəˈreɪʃən

restoration

Meaning
The process of returning something to its former condition.
Example
The restoration of the forest began after decades of neglect.
B2 adjective /ʌnˈlɔːfl/

Unlawful

Meaning
not authorized by law; illegal
Example
The court declared the search unlawful.
C2 adjective /bɪˈfʌdld/

befuddled

Meaning
confused, unable to think clearly
Example
He looked befuddled after hearing the complex instructions.
C1 adjective ˈtæs.ɪt

tacit

Meaning
Understood or implied without being openly expressed or stated
Example
Their mutual understanding was based on tacit agreement.
B1 verb /ɪnˈvɑːlv/

involve

Meaning
to include as a necessary part, or to engage someone in an activity
Example
The project will involve several departments working together.
B2 verb /dɪˈprɛs/

depress

Meaning
To make someone feel sad or without hope; to reduce the level or strength of something.
Example
The gloomy weather tends to depress people.
C2 verb /ˈkævəl/

cavil

Meaning
to make petty or unnecessary objections
Example
She caviled at every detail of the plan.
C1 noun ˌflʌk.tʃuˈeɪ.ʃən

fluctuation

Meaning
An irregular rising and falling in number or amount; a variation.
Example
The stock market experiences frequent fluctuation.
B2 noun ˈɡrævɪti

gravity

Meaning
The force that attracts a body toward the center of the earth, or toward any other physical body having mass.
Example
Gravity pulls objects towards the Earth's surface.
A2 noun /pleɪt/

Plate

Meaning
a flat, typically round dish used for serving or eating food
Example
Please put the rice on your plate.
C1 noun/adjective /ˈmɪstɪk/

mystic

Meaning
relating to mysteries, spirituality, or hidden truths; a person who seeks spiritual insight
Example
The mystic devoted his life to meditation and spiritual discovery.
B2 adjective /ˈprɒmɪsɪŋ/

promising

Meaning
showing signs of future success or potential
Example
She is a promising young scientist with great ideas.
C2 adjective /ˈsɪŋkəˌpeɪtɪd/

syncopated

Meaning
Characterized by displaced beats or rhythms, especially in music.
Example
The jazz piece had a syncopated rhythm that energized the crowd.
B1 noun /əˈfer/

Affair

Meaning
an event or situation; a matter that someone deals with
Example
The wedding was a grand affair with hundreds of guests.
C2 noun /ˈbed.ləm/

Bedlam

Meaning
a scene of noisy confusion; chaos and disorder
Example
The classroom was complete bedlam after the fire alarm.
B2 adjective /dɪˈsaɪsɪv/

decisive

Meaning
Having the ability to make decisions quickly and effectively; determining the outcome.
Example
Her decisive action saved the company from collapse.
C2 noun /ˌdʒerənˈtɑːkrəsi/

gerontocracy

Meaning
A system of government or control by old people.
Example
The country was seen as a gerontocracy, dominated by elderly leaders.
C1 verb /ˈmɪŋɡl/

mingle

Meaning
to mix or combine; to move among people and engage socially
Example
Guests mingled at the party, chatting and laughing together.
C1 noun /ɪmˈbɑː.ɡoʊ/

embargo

Meaning
A trade ban, restriction, or prohibition imposed by a government or international organization on a country.
Example
The UN imposed an embargo on arms exports.
A2 noun, verb /ˈɪʃuː/

issue

Meaning
A problem, topic, or the act of supplying or distributing something.
Example
The magazine will issue a new edition next week.
C1 adjective /fəˈnætɪk/

Fanatic

Meaning
extremely passionate about something; showing excessive enthusiasm or devotion
Example
He is a fanatic supporter of his football team.
B2 noun ˈfreɪm.wɜːks

frameworks

Meaning
A basic structure underlying a system, concept, or text; an essential supporting structure.
Example
Frameworks define the basis of systems.
C2 adjective ˈkoʊ.dʒənt

cogent

Meaning
Clear, logical, and convincing.
Example
His cogent argument convinced the jury.
C1 noun /ˈtrɪŋkɪt/

trinket

Meaning
a small ornament or piece of jewelry that is not expensive
Example
She bought a little trinket from the beach market as a souvenir.
B2 noun sɛlf rɪˈlaɪ.əns

self-reliance

Meaning
Reliance on one's own powers and resources rather than those of others; independence.
Example
Self-reliance helps build confidence.
C1 noun /ˌɪmpɔːrˈteɪʃən/

importation

Meaning
The act of bringing goods or services into a country from abroad
Example
The importation of luxury goods is strictly regulated.
B1 noun /ˈsʌn.set/

Sunset

Meaning
the time in the evening when the sun disappears below the horizon
Example
The romantic sunset painted the sky in golden colors.
C1 adjective /dɪsˈkɔːrdənt/

discordant

Meaning
disagreeing or clashing; harsh and jarring in sound
Example
The discordant notes of the band hurt our ears.
B2 adjective /ˈneɪ.bər.ɪŋ/

Neighbouring

Meaning
situated next to or very near; adjacent; bordering
Example
We often visit our neighbouring countries for trade.
A1 noun /ˈsʌmər/

summer

Meaning
the warmest season of the year, between spring and autumn
Example
We love going to the beach during summer.
B1 noun /ˈkɪləɡræm/

kilogram

Meaning
the base unit of mass in the metric system equal to 1,000 grams
Example
The bag of rice weighs five kilograms.
C1 adjective /klæd/

clad

Meaning
dressed or covered in a particular way
Example
The knight was clad in shining armor.
C1 adjective /ˌeɪ.bəlˈbɒd.id/

able-bodied

Meaning
physically strong and healthy, not disabled
Example
The company is looking for able-bodied workers for the construction site.
C2 verb /rɪˈvaɪl/

revile

Meaning
to criticize in an abusive or angrily insulting manner
Example
The politician was reviled by the public for his corruption.
B2 noun /ˈtɜːnˌəʊvə/

turnover

Meaning
the amount of business conducted during a particular period, or the rate at which employees leave a company
Example
The company reported a high turnover in its sales department.
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.
B2 noun /dʒiːn/

gene

Meaning
A unit of heredity in living organisms, transferred from parent to offspring, determining traits.
Example
Eye color is influenced by genes inherited from parents.
C1 noun /ˈblæs.fə.mi/

blasphemy

Meaning
the act of speaking disrespectfully about God or sacred things
Example
In some countries, blasphemy is a punishable offense.
C1 noun ˈkætəlɪst

catalyst

Meaning
A person or thing that precipitates an event or change.
Example
His speech acted as a catalyst for change in the community.
C2 noun /floʊ/

floe

Meaning
a large sheet of floating ice
Example
The polar bears rested on the ice floe.