chemistry
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B1 noun /ˈkɛmɪstri/

chemistry

Meaning
the branch of science that studies substances and their interactions; also the emotional connection between people
Example
They have great chemistry and work well together.
C2 verb /ɜːrk/

irk

Meaning
to annoy or irritate someone
Example
It irks me when people are late without calling.
C2 adjective /voʊˈsɪfərəs/

vociferous

Meaning
expressing feelings or opinions in a loud and forceful way
Example
The vociferous crowd demanded justice.
B1 noun /kəˈnæl/

canal

Meaning
an artificial waterway constructed for navigation, irrigation, or drainage
Example
The canal was built to help transport goods across the region.
C2 noun /ˈprɛləsi/

prelacy

Meaning
The office, dignity, or system of church government by prelates.
Example
The medieval church was dominated by prelacy and its traditions.
B2 adjective /ˌʌnkənˈvɪnsɪŋ/

Unconvincing

Meaning
failing to persuade or impress; not believable or credible
Example
His excuse for being late was completely unconvincing.
C1 verb /rɪˈdʒɛnəreɪt/

regenerate

Meaning
to grow or produce again; to renew or restore
Example
The lizard can regenerate its lost tail.
C1 noun /ɪnˌtɪmɪˈdeɪʃən/

intimidation

Meaning
The action of frightening or threatening someone to make them do something.
Example
The workers reported cases of intimidation by the management.
B2 noun /ˈsoʊlər ɪˈklɪps/

Solar eclipse

Meaning
an eclipse in which the sun is obscured by the moon passing between it and the earth
Example
The solar eclipse will be visible from our city next month.
C1 noun /ˈækwɪˌdʌkt/

aqueduct

Meaning
a structure built to carry water over long distances
Example
The Romans built aqueducts to supply water to their cities.
B2 adjective prɪˈlɪm.ɪ.nər.i

preliminary

Meaning
Denoting an action or event preceding or done in preparation for something fuller or more important.
Example
Preliminary steps are crucial before the main project.
B2 noun /ˈhɔːr.ər/

Horror

Meaning
an intense feeling of fear, shock, or disgust; something that causes such feelings
Example
The survivors described the horror of the earthquake that destroyed their entire village.
C1 adjective /ˌɪnstənˈteɪniəs/

instantaneous

Meaning
Happening immediately, without any delay.
Example
The change in temperature was almost instantaneous.
C1 adjective /ˈroʊ.ɡɪʃ/

Roguish

Meaning
mischievous; playfully dishonest
Example
His roguish smile suggested he was up to some mischief.
C2 noun /ˈɛmbəˌlɪzəm/

embolism

Meaning
the sudden blockage of a blood vessel by a clot or other foreign matter
Example
The patient suffered a fatal pulmonary embolism.
C1 noun /ˌlɪbəˈreɪʃən wɔːr/

liberation war

Meaning
a war fought to gain freedom from foreign rule, occupation, or oppression; an armed struggle for national independence
Example
The liberation war reshaped the nation’s history and identity.
A2 adjective /ɡriːk/

greek

Meaning
relating to Greece, its people, or its language
Example
We enjoyed delicious Greek food at the restaurant.
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.
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.
B2 noun /ɒdz/

odds

Meaning
the likelihood or probability of something happening; chances for or against something
Example
The odds of winning the lottery are very low.
B2 noun ˌsænɪˈteɪʃən

sanitation

Meaning
Conditions relating to public health, especially the provision of clean drinking water and adequate sewage disposal.
Example
Good sanitation practices are key to preventing infestations.
C2 adjective /ˈdʒen.ɪ.tɪv/

genitive

Meaning
relating to or denoting a case of nouns and pronouns indicating possession
Example
In English, the genitive case is often shown with an apostrophe and 's'.
C2 adjective /ˈvɪnsəbl/

vincible

Meaning
capable of being overcome or defeated
Example
The enemy seemed vincible after losing their main base.
C2 verb /kəˈriːn/

careen

Meaning
To move swiftly and in an uncontrolled way, especially in a specific direction.
Example
The car careened down the slippery road.
C1 noun /məˈtɜːrnəti/

Maternity

Meaning
The state of being a mother; motherhood
Example
The hospital has an excellent maternity ward for new mothers.
B1 noun fʌnd

fund

Meaning
A sum of money saved or made available for a particular purpose.
Example
The government allocated a fund for disaster relief.
C1 verb /ˈskwɒndər/

squander

Meaning
to waste money, time, or opportunities in a careless way
Example
He squandered his inheritance on gambling.
C2 noun /ˈpɛntəˌɡræm/

pentagram

Meaning
A five-pointed star often used as a symbol in magic, mysticism, or religion.
Example
The wizard drew a pentagram on the floor as part of the ritual.
C2 noun /ˌɑːbdʒərˈɡeɪʃən/

objurgation

Meaning
a harsh scolding or strong rebuke
Example
His misconduct earned him a severe objurgation from the manager.
B1 noun /dʌst/

dust

Meaning
Fine particles of matter.
Example
Road dust is a major pollutant in urban areas.
B2 adverb /ˈʃɑːrpli/

sharply

Meaning
suddenly and strongly; in a cutting or intense way
Example
Prices rose sharply after the announcement.
A2 noun /ˈmænɪdʒər/

manager

Meaning
a person responsible for controlling or administering an organization or group of staff
Example
The manager approved the new project plan.
C2 noun /ˈhɒthɛd/

hothead

Meaning
a person who acts quickly and without thinking when angry
Example
He is such a hothead that he often starts arguments.
C1 adjective /hɜːrˈbɪv.ər.əs/

Herbivorous

Meaning
feeding on plants; plant-eating
Example
Cows are herbivorous animals that graze on grass.
B2 noun /ˈklaɪ.mət əˌdæp.teɪ.ʃən/

climate adaptation

Meaning
The process of adjusting to current or expected climate change and its effects.
Example
Climate adaptation ensures resilience to change.
B2 noun /ˈɜː.dʒən.si/

Urgency

Meaning
the quality of requiring immediate action or attention; pressing importance
Example
The urgency of the situation required immediate medical attention.
B2 noun /kriːk/

creek

Meaning
a small stream or narrow river
Example
We went fishing by the creek near our house.
C1 adjective /ˈmʌðərli/

Motherly

Meaning
having qualities characteristic of a mother; caring and protective
Example
She showed motherly care and affection towards all the children.
B2 adjective /ˈniː.di/

Needy

Meaning
requiring help or support; poor; lacking basic necessities
Example
The charity helps needy families during the winter.
C1 verb /dɛlv/

delve

Meaning
To investigate deeply; to dig into a subject or area.
Example
The researcher delved into ancient manuscripts to find clues.
C1 noun /ˌdʒuː.bɪˈleɪ.ʃən/

jubilation

Meaning
a feeling or expression of great happiness and triumph
Example
There was jubilation in the streets after the victory.
C2 adjective /dɪˈstreɪ/

distrait

Meaning
deeply distracted or absent-minded, often due to worry or grief
Example
He looked distrait after hearing the sad news.
B1 adjective /ɪˈnɔː.məs/

Enormous

Meaning
very large in size, quantity, or extent; huge
Example
The elephant was enormous and weighed several tons.
A2 noun /biːn/

Bean

Meaning
an edible seed, typically kidney-shaped, growing in long pods on certain leguminous plants
Example
We planted green beans in our vegetable garden this spring.
B2 adjective /rɪˈliːvd/

relieved

Meaning
feeling happy and less worried after something stressful has been removed or resolved
Example
She felt relieved after hearing the good news.
C1 verb /ɡraɪp/

gripe

Meaning
to complain about something in an annoying way
Example
He is always griping about the weather.
C2 noun /ˌkɒntrəpəˈzɪʃən/

contraposition

Meaning
the act of placing two things in opposition for contrast or comparison
Example
The contraposition of the two theories highlighted their differences.
B2 adjective /kənˈvɜːrtəbl/

convertible

Meaning
able to be changed into a different form or use; also a car with a roof that can be folded down
Example
She drove her new convertible along the coastal road.
B2 noun /əˈmɛnətiz/

amenities

Meaning
useful or pleasant facilities and services provided for comfort or convenience
Example
The hotel offers modern amenities such as free Wi-Fi and a swimming pool.
B2 adverb /ˈneɪmli/

Namely

Meaning
that is to say; specifically; to be precise
Example
Three cities, namely Paris, London, and Rome, were visited.
C2 adjective /ˌser.ɪˈməʊ.ni.əs/

ceremonious

Meaning
marked by formality, politeness, or strict observance of customs
Example
He gave her a ceremonious bow before entering the hall.
C1 verb /ɪmˈbɛl.ɪʃ/

embellish

Meaning
To make something more attractive by adding decorative details or exaggerating.
Example
He tends to embellish stories to make them more interesting.
B1 verb /daɪn/

dine

Meaning
to eat a meal, especially the main meal of the day
Example
We usually dine at seven o'clock in the evening.
C2 noun /kæd/

Cad

Meaning
a man who behaves dishonorably, especially toward women
Example
Everyone at the party avoided him because he was known to be a cad.
C2 adjective /ˌʌnpriːpəˈzɛsɪŋ/

unprepossessing

Meaning
not attractive or appealing in appearance
Example
Despite his unprepossessing looks, he was very kind and intelligent.
C1 noun /ˈlaɪm.laɪt/

Limelight

Meaning
the focus of public attention; a bright light produced by heating a cylinder of lime
Example
The celebrity enjoyed being in the limelight.
A1 noun /fruːt/

fruit

Meaning
The sweet and fleshy product of a plant that contains seeds.
Example
Mango is my favorite fruit.
C2 adjective /prəˈtuːbərənt/

protuberant

Meaning
Sticking out or bulging.
Example
His protuberant belly showed after the meal.
B2 noun /eɪd/

aide

Meaning
An assistant or helper, especially to an important person.
Example
The senator’s aide organized the meeting with journalists.
C1 noun /wæks ɡɔːrd/

Wax Gourd

Meaning
a large white or green gourd with waxy skin, commonly used in Asian cooking
Example
The wax gourd soup is very nutritious and helps with digestion.
C1 noun /ˈskrɪmɪdʒ/

scrimmage

Meaning
A practice game or informal match, often in sports, especially football.
Example
The team had a scrimmage before the official season started.
B2 noun /ɡriːd/

Greed

Meaning
intense and selfish desire for something, especially wealth, power, or food
Example
His greed for money led him to make unethical business decisions.
A1 verb /drɪŋk/

drink

Meaning
to take liquid into the mouth and swallow it
Example
I drink water every morning.
B2 noun ˈskeə.sɪ.ti

scarcity

Meaning
The state of being scarce or in short supply; shortage.
Example
Water scarcity threatens agriculture.
C1 verb /ˈdʒɜːrmɪneɪt/

germinate

Meaning
To begin to grow or develop, especially referring to a seed.
Example
The seeds germinate quickly in moist soil.
B2 adjective /ˈprɒmɪnənt/

prominent

Meaning
Important, famous, or easily noticeable.
Example
He is a prominent leader in the community.
C1 noun /vərˈnækjələr/

vernacular

Meaning
the language or dialect spoken by ordinary people in a particular region
Example
He gave his speech in the local vernacular so everyone could understand.
C1 adjective /ˈsiːs.ləs/

Ceaseless

Meaning
continuing without pause or interruption; endless
Example
The ceaseless rain lasted for three days.
C2 adjective /ˈpɑːmi/

palmy

Meaning
prosperous, flourishing, or relating to palm trees
Example
He often reminisced about the palmy days of his youth.
A2 verb /ɪnˈkluːd/

include

Meaning
to have as part of a whole; to contain or comprise
Example
The price includes all taxes.
C1 noun /ˌɑːr.kəˈpɛl.əˌɡoʊ/

archipelago

Meaning
A group of islands clustered together in a body of water.
Example
Indonesia is an archipelago with thousands of islands.
B1 noun /sɔɪl/

soil

Meaning
The upper layer of earth in which plants grow.
Example
The soil in this area is reddish.
C2 verb /poʊˈtɛnʃiˌeɪt/

potentiate

Meaning
To increase the power, effect, or likelihood of something.
Example
Caffeine can potentiate the effects of some medicines.
C2 verb /aɪˈtɪnəˌreɪt/

itinerate

Meaning
To travel from place to place, usually for the purpose of work or preaching.
Example
The missionary itinerated throughout the region to spread the message.
A2 proper noun /ˌsaʊθ əˈmɛrɪkə/

south america

Meaning
a continent located in the Western Hemisphere, mostly in the Southern Hemisphere
Example
Brazil is the largest country in South America.
B1 noun /ˈkɒkˌteɪl/

cocktail

Meaning
a mixed drink typically containing alcohol and other ingredients.
Example
She ordered a cocktail at the bar.
A1 noun /naɪt/

night

Meaning
the time of darkness between one day and the next, when most people sleep
Example
She loves going for walks at night.
C2 noun /θrɔːl/

thrall

Meaning
The state of being in someone's power or under strong influence; slavery or bondage.
Example
He was in thrall to the powerful leader.
B2 noun /kɜːrv/

Curve

Meaning
a line or outline that gradually deviates from being straight; a bend or turn in a road or path
Example
The driver slowed down as he approached the sharp curve in the mountain road.
A1 verb /wɪn/

win

Meaning
to be successful or victorious in a contest or competition
Example
Our team will win the championship.
C1 adjective /ˈpɛtjʊlənt/

petulant

Meaning
Childishly sulky or bad-tempered.
Example
The child became petulant when denied more candy.
B2 verb /skeər/

scare

Meaning
to frighten someone or make them feel afraid
Example
The loud noise scared the baby.
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.
C1 adjective /pɒˈstɪəriər/

posterior

Meaning
Situated at or toward the back; later in time.
Example
The posterior part of the brain controls vision.
C2 verb /ˈræm.ɪ.faɪ/

ramify

Meaning
to spread or branch out into divisions or subdivisions.
Example
The river ramifies into several smaller streams.
C2 adjective /ˌmæləˈdrɔɪt/

maladroit

Meaning
clumsy or awkward in movement or behavior
Example
His maladroit attempt at fixing the chair made it worse.
C1 noun /ˈnɪkəl/

nickel

Meaning
a small coin, typically worth five cents in the United States
Example
He found a nickel on the ground.
B1 adjective /sɪnˈsɪər/

Sincere

Meaning
honest and genuine in expressing feelings; free from pretense or deceit
Example
She gave me a sincere apology for her mistake.
B1 adverb /ˈɡreɪtli/

greatly

Meaning
to a large extent or degree; very much
Example
She was greatly admired by her students.
B2 verb /koʊp/

cope

Meaning
to deal effectively with something difficult
Example
She had to cope with a lot of pressure at work.
B2 noun /ədˈmɪnɪstreɪtər/

administrator

Meaning
a person responsible for running or managing an organization or system
Example
The school administrator implemented new policies for students.
C1 verb /ɪnˈvælɪdeɪt/

invalidate

Meaning
To make something not valid or legally acceptable.
Example
The new evidence may invalidate the previous ruling.
B2 noun əˈʃɔː.rəns

assurance

Meaning
A positive declaration intended to give confidence; a promise.
Example
Assurance of quality is a priority for the council.
B1 verb /mɛlt/

melt

Meaning
to change from solid to liquid due to heat; to disappear gradually
Example
The ice melted in the sun.
A2 noun /ˈplen.ti/

Plenty

Meaning
a large or sufficient amount; abundance
Example
There is plenty of food for everyone at the party.
C2 adjective /tɒnˈsɔːriəl/

tonsorial

Meaning
relating to barbers or hairdressing
Example
The town's new barber offered a wide range of tonsorial services.
C1 noun /kənˈtʃɛrtoʊ/

concerto

Meaning
a musical composition for one or more solo instruments accompanied by an orchestra
Example
She played a Mozart concerto with the orchestra.
C2 adjective /ˌɛlɪˈfæntaɪn/

elephantine

Meaning
Huge, clumsy, or resembling an elephant in size or movement.
Example
The man moved with an elephantine grace.
C1 noun /ˈmɒdɪfaɪər/

modifier

Meaning
a word or element that changes, limits, or describes the meaning of another word; something that alters or adjusts
Example
In the phrase 'very cold', 'very' is a modifier of 'cold'.
B1 noun /ˈhɛdˌlaɪn/

headline

Meaning
The title of a newspaper article printed in large letters.
Example
The scandal made front-page headlines.
B2 noun /ˈrækɪt/

racket

Meaning
A piece of equipment used to hit the ball in sports like tennis or badminton; also a loud noise or an illegal scheme.
Example
He bought a new tennis racket for the match.
A2 preposition /tɪl/

till

Meaning
up to the time of; until
Example
She waited till midnight for his call.
C1 noun /dɪˈspɜːrʒən/

dispersion

Meaning
The action or process of distributing things or people over a wide area.
Example
The dispersion of seeds by the wind helps plants reproduce.
C2 adjective /pəˈluːsɪd/

pellucid

Meaning
Transparently clear; easy to understand.
Example
The lake water was so pellucid that you could see the stones at the bottom.
C1 noun /ˌkɒnstəˈneɪʃən/

consternation

Meaning
A feeling of anxiety, dismay, or confusion, often caused by something unexpected.
Example
The sudden announcement caused widespread consternation among the employees.
A1 noun /piːˈɛm/

pm

Meaning
abbreviation for post meridiem; after midday
Example
The meeting is scheduled at 3 pm.
C1 noun /poʊˈlær.ɪ.ti/

polarity

Meaning
the state of having two opposite or contradictory tendencies, opinions, or aspects
Example
The polarity between the two political parties is growing stronger.
C2 adjective /ˈluː.ni/

Loony

Meaning
crazy; silly; mentally unstable
Example
His loony behavior made everyone laugh.
B1 adjective /əˈmjuː.zɪŋ/

Amusing

Meaning
causing laughter or providing entertainment; funny; enjoyable
Example
The children found the clown's performance very amusing.
C1 noun /ˈmɪd.waɪf/

midwife

Meaning
A person, typically a woman, trained to assist women during childbirth.
Example
The midwife stayed with the mother throughout her labor.
C2 noun /ˈɡɪbən/

gibbon

Meaning
a small to medium-sized tailless ape with long arms, native to the forests of Southeast Asia
Example
The gibbon swung gracefully through the trees using its long arms.
C1 adjective /ˌret.rəˈspek.tɪv/

Retrospective

Meaning
looking back on or dealing with past events or situations
Example
The museum held a retrospective exhibition of the artist's work.
C1 noun /ˈsɛmbləns/

Semblance

Meaning
the outward appearance or apparent form of something, especially when the reality is different
Example
There was only a semblance of order in the chaotic office.
C2 adjective /ˈflaɪti/

flighty

Meaning
unstable, impulsive, or easily distracted; lacking seriousness or stability
Example
She’s too flighty to stick with one job for long.
C2 adjective /dɪˈlɛktəbl̩/

delectable

Meaning
delicious or highly enjoyable
Example
The restaurant served a delectable meal.
B2 verb /plaʊ/

plough

Meaning
to break up and turn over soil using a plough; to move through something with difficulty
Example
The farmer ploughs the field every spring.
C2 noun /ˈklaɪmɪŋ fɪʃ/

Climbing-fish

Meaning
a type of fish that can climb trees and survive out of water for short periods
Example
The climbing-fish can move from one pond to another by climbing trees.
B2 noun, verb /dɪˈfɔːlt/

default

Meaning
failure to fulfill an obligation, especially to repay a loan
Example
The company defaulted on its loan payments.
B1 noun /flæʃ/

Flash

Meaning
a sudden brief burst of bright light; a very brief moment
Example
There was a bright flash of lightning followed by thunder.
C1 noun /ˈɡæloʊz/

gallows

Meaning
A structure used for hanging criminals who have been sentenced to death.
Example
The criminal was led to the gallows at dawn.
C1 adjective /ˈsɔːsi/

saucy

Meaning
Boldly rude, cheeky, or playfully disrespectful.
Example
The child gave a saucy reply to his teacher.