pentavalent
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C2 adjective /ˌpɛntəˈveɪlənt/

pentavalent

Meaning
Having a valence of five, especially in chemistry.
Example
Phosphorus can exist in a pentavalent state.
C1 adjective /ˈnɪmbəl/

nimble

Meaning
Quick and light in movement or thought.
Example
The dancer’s nimble steps impressed the audience.
C1 verb /riːˈkæptʃər/

recapture

Meaning
To take back or regain possession of something.
Example
The army managed to recapture the lost territory.
B2 noun əˈmend.mənts

amendments

Meaning
Changes or additions made to improve a text, law, or constitution.
Example
Amendments reflect evolving public needs.
A2 noun /dɪˈzæs.tər/

Disaster

Meaning
a sudden event causing great damage or loss of life; a complete failure
Example
The earthquake was a natural disaster that affected thousands of families.
C2 verb /dʒaʊst/

joust

Meaning
to engage in a medieval contest on horseback with lances; to compete or argue
Example
The knights prepared to joust in front of the cheering crowd.
B1 noun /ˈpoʊ.lər beər/

Polar Bear

Meaning
a large white bear that lives in the Arctic regions
Example
The polar bear swims in the icy Arctic waters.
A2 noun /dʒoʊk/

Joke

Meaning
a thing that someone says to cause amusement or laughter; something not to be taken seriously
Example
Everyone laughed at his funny joke during the dinner party.
C2 adjective /ˈkɑːrpɪŋ/

carping

Meaning
continually complaining or finding fault in a petty way
Example
His carping attitude makes teamwork difficult.
C2 noun /ɪˈluːmɪnənt/

illuminant

Meaning
A substance or device that produces light.
Example
The lamp acted as an illuminant in the dark cave.
C2 noun /baɪˈmɛstər/

bimester

Meaning
A period of two months.
Example
The academic program is divided into six bimesters.
A1 adjective /kloʊzd/

closed

Meaning
not open; shut
Example
The store is closed on Fridays.
C1 adjective /ˈstɛlər/

stellar

Meaning
Relating to stars; outstanding or excellent.
Example
She gave a stellar performance in the play.
C2 adjective /ˌnjuːmɪzˈmætɪk/

numismatic

Meaning
relating to the study or collection of coins, currency, and medals
Example
He has a numismatic collection of rare coins from around the world.
C2 verb /nɑːrl/

gnarl

Meaning
To twist into a knotted or distorted form.
Example
The tree roots began to gnarl around the stones.
B2 adjective /ˈpoʊ.lər/

polar

Meaning
relating to the North or South Pole; opposite in nature or character
Example
Penguins live in polar regions of the Earth.
C2 noun /ˈnɛtl̩/

nettle

Meaning
a plant with stinging hairs that cause irritation when touched
Example
He accidentally brushed against the nettle and felt a sharp sting.
C1 noun /ˈtem.pər.ə.mənt/

Temperament

Meaning
a person's natural disposition or mood; characteristic behavior patterns
Example
She has a calm temperament that helps her handle stress well.
B1 adverb /ɪkˈstriːm.li/

Extremely

Meaning
to a very high degree; exceptionally
Example
The weather today is extremely hot and humid.
C2 noun /ˈvɛrɪti/

verity

Meaning
a true principle or belief; the state of being true
Example
The verity of his statement was confirmed by evidence.
C1 noun /ˌhoʊmiˈɑːpəθi/

homeopathy

Meaning
a system of alternative medicine based on treating diseases with highly diluted substances
Example
He believes in homeopathy for treating common colds.
B1 noun /ˌek.spləˈneɪ.ʃən/

Explanation

Meaning
a statement or account that makes something clear; clarification of meaning
Example
The teacher gave a detailed explanation of the complex mathematical concept.
C2 verb /ˌmɪskənˈstruː/

misconstrue

Meaning
To interpret something wrongly or misunderstand the meaning.
Example
She misconstrued his silence as anger.
B2 adjective /ˈvɛriənt/

Variant

Meaning
differing in form, details, or in some other respect; alternative
Example
There are several variant spellings of this word.
C1 verb /ɪnˈsɜːrkəl/

encircle

Meaning
to form a circle around something
Example
The protesters encircled the building in a human chain.
C1 adjective /pləˈtɒnɪk/

platonic

Meaning
relating to a close relationship that is not romantic or sexual
Example
They have a platonic friendship that has lasted for years.
C1 adjective /ˈtrænzvɜːrs/

transverse

Meaning
situated or lying across something
Example
The transverse road connects two highways.
B1 noun /ˈdʒɜːrnəlɪst/

journalist

Meaning
a person who writes news articles or reports for newspapers, magazines, or media
Example
The journalist covered the political event.
C2 noun /ˈdæl.i.əns/

Dalliance

Meaning
a casual romantic or sexual relationship; a brief involvement or experiment
Example
His dalliance with photography lasted only a few months before he lost interest.
A2 noun /ʃiːt/

sheet

Meaning
a large piece of cloth or paper, typically used to cover or protect something
Example
I need a clean sheet to cover the bed.
C2 adjective /ɪˈlɪbərəl/

illiberal

Meaning
Opposed to liberal principles; restricting freedom of thought or behavior.
Example
The government was criticized for its illiberal policies.
B2 noun ˈme.trɪks

metrics

Meaning
A system or standard of measurement; a set of numbers that give information about a particular process or activity.
Example
Metrics are crucial for evaluating performance.
C2 noun, verb /ɡɔːl/

gall

Meaning
Annoyance, boldness, or to irritate.
Example
She had the gall to question his decision.
C2 noun /rɪˈpʌɡ.nəns/

repugnance

Meaning
intense disgust or strong aversion towards something
Example
She felt deep repugnance at the cruelty of the act.
C1 noun /ˈtʌrɪt/

turret

Meaning
A small tower on top of a larger tower or building, often used in castles or fortifications.
Example
The castle was guarded by soldiers stationed in the turret.
C2 noun /ˌsaɪ.kəʊˈɡræf.ɪks/

Psychographics

Meaning
The study and classification of people according to their attitudes, aspirations, and other psychological criteria.
Example
Psychographics reveal consumer buying motives.
C2 adjective /ˈhaɪdrəs/

hydrous

Meaning
Containing water, especially water of crystallization.
Example
The mineral is hydrous because it contains water molecules in its structure.
A2 adjective ˈkʌmftəbəl

comfortable

Meaning
Giving a feeling of physical ease and relaxation; free from hardship or unpleasant conditions.
Example
Urban planning aims to make cities more comfortable.
C1 noun/adjective /ˈmɒnəkrəʊm/

monochrome

Meaning
A photograph, painting, or screen image in black and white or varying tones of one color.
Example
The old film was shot entirely in monochrome.
B1 noun /ˈklaɪ.mət/

climate

Meaning
The weather conditions prevailing in an area in general.
Example
Climate change impacts all regions globally.
B2 noun /əˈreɪ/

array

Meaning
an impressive display or arrangement of things
Example
The shop displayed an array of colorful dresses.
C2 noun /ˈboʊsən/

boatswain

Meaning
a ship's officer in charge of equipment and the crew
Example
The boatswain supervised the sailors on deck.
B1 verb /dæm/

damn

Meaning
to condemn or criticize strongly; used as an expletive to express anger or emphasis
Example
He damned the unfair system in his speech.
C2 noun /ɪmˈpruː.dəns/

Imprudence

Meaning
the quality of being imprudent; lack of care for consequences; recklessness
Example
His financial imprudence led to bankruptcy within just two years.
C1 verb /flɔːnt/

flaunt

Meaning
to show off something proudly, often to attract attention
Example
She likes to flaunt her new jewelry at parties.
C1 noun /moʊˈzeɪɪk/

mosaic

Meaning
A picture or pattern produced by arranging together small pieces of stone, tile, or glass.
Example
The church ceiling was decorated with a beautiful mosaic.
C2 noun /bjuːt/

butte

Meaning
an isolated hill with steep sides and a flat top, common in arid regions
Example
The travelers could see a tall butte rising in the desert.
C2 verb /ˌdɪskəmˈpoʊz/

discompose

Meaning
To disturb the order or calmness of something or someone.
Example
The unexpected question seemed to discompose her.
A2 noun /ˈplænɪt/

Planet

Meaning
a celestial body moving in an elliptical orbit around a star
Example
Mars is the fourth planet from the sun.
C2 adjective /həˈmɑː.lə.ɡəs/

homologous

Meaning
Having the same relation, relative position, or structure, especially due to evolutionary origin.
Example
The wings of bats and the arms of humans are homologous structures.
A1 determiner/pronoun /boʊθ/

both

Meaning
referring to two people or things together
Example
Both of the children were excited about the trip.
C1 adjective /ɔːlˈmaɪ.ti/

Almighty

Meaning
having unlimited power; omnipotent
Example
The almighty storm destroyed everything in its path.
C1 adjective /məˈdʒen.tə/

Magenta

Meaning
a bright purplish-red color
Example
She wore a beautiful magenta dress to the party.
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.
C2 noun, adjective /nɒn ˈkɒmbətənt/

non-combatant

Meaning
a person not engaged in fighting during a war, such as civilians or medical staff
Example
The Red Cross workers were treated as non-combatants in the conflict.
B2 noun /slʌm/

Slum

Meaning
a poor urban area with substandard housing and squalid conditions
Example
The government is working to improve conditions in the slum.
B1 adjective /ˌdɪs.əˈpɔɪn.tɪd/

Disappointed

Meaning
sad because something has not happened or is not as good as expected
Example
She was disappointed with her exam results.
C1 noun, adjective /ˌnɒn ˈrɛzɪdənt/

non-resident

Meaning
a person who does not live in a particular country or place permanently
Example
Non-resident students often pay higher tuition fees.
A1 noun /tɒp/

top

Meaning
the highest or uppermost point, part, or surface of something
Example
The book is on the top shelf.
C2 verb /məʊlt/

molt

Meaning
To shed old feathers, skin, or hair to make way for new growth.
Example
Birds molt their feathers once a year.
C1 noun njuːˈtræl.ə.ti

neutrality

Meaning
The state of not supporting or helping either side in a conflict, disagreement, etc.; impartiality.
Example
Neutrality fosters trust in decision-making.
C1 noun /ˈʃrɪŋkɪdʒ/

shrinkage

Meaning
The process of becoming smaller in size, amount, or value.
Example
The company reported a shrinkage in profits this quarter.
C2 noun/adjective /ˈtraɪkʌlər/

tricolor

Meaning
A flag with three colors; consisting of three colors.
Example
The French tricolor is one of the most famous national flags in the world.
C1 noun /ˈtrɪp.lət/

triplet

Meaning
One of three children or animals born at the same time to the same mother.
Example
The family was surprised to have triplets instead of twins.
C2 adjective /ɪnˈskruːtəbl̩/

inscrutable

Meaning
impossible to understand or interpret
Example
His inscrutable expression made it hard to know what he was thinking.
C2 adjective /ˈoʊ.vɔɪd/

ovoid

Meaning
egg-shaped; resembling an oval or ellipse
Example
The artist painted an ovoid shape in the center of the canvas.
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.
B2 noun /wɜːrld ɪnˈvaɪrənmənt deɪ/

World Environment Day

Meaning
An annual global event celebrated on June 5 to raise awareness about environmental protection and encourage action for environmental conservation.
Example
World Environment Day is celebrated every year on June 5.
C2 noun /ˌsɪŋ.krəˈnɪs.ɪ.ti/

synchronicity

Meaning
The meaningful coincidence of two or more events that are not planned.
Example
The synchronicity of their thoughts amazed everyone.
B2 verb /əˈkʌmplɪʃ/

accomplish

Meaning
to achieve or complete successfully
Example
She managed to accomplish all her goals for the year.
C2 noun ˌɒbfəsˈkeɪʃən

obfuscation

Meaning
The action of making something obscure, unclear, or unintelligible.
Example
The obfuscation of the data made it difficult to interpret.
A2 noun, verb, adjective /saʊnd/

sound

Meaning
a sensation perceived by the ear; to make or cause to make a noise; in good condition
Example
The bell sounded across the valley.
B2 noun ˈɛmpəθi

empathy

Meaning
The ability to understand and share the feelings of another person.
Example
Empathy helps students connect with society.
B2 noun /kənˈvɜː.ʃən/

Conversion

Meaning
The process of changing or causing something to change from one form to another.
Example
High website conversion rates indicate effective marketing.
B1 verb /skɪp/

skip

Meaning
to omit or pass over something; to move lightly or quickly
Example
He decided to skip breakfast and go straight to work.
C1 noun /ˈdɛdlɒk/

deadlock

Meaning
a situation in which progress is impossible because of disagreement
Example
Negotiations reached a deadlock after neither side agreed to compromise.
C1 noun ˌɪn.toʊˈneɪ.ʃən

intonation

Meaning
The rise and fall of tone in speech and pronunciation.
Example
Proper intonation enhances the clarity of a speech.
C1 adjective /dɪˈsiːtfəl/

deceitful

Meaning
Deliberately misleading or dishonest.
Example
She gave a deceitful answer to hide the truth.
C1 noun /wɪm/

whim

Meaning
a sudden or unpredictable idea, desire, or decision
Example
She bought the dress on a whim.
C2 verb /əˈkuːtə/

accoutre

Meaning
to dress or equip, especially in something impressive or elaborate
Example
The knight was accoutred in shining armor.
A2 adjective /ʌnˈtaɪdi/

Untidy

Meaning
not neat or orderly; messy and disorganized
Example
Her untidy room was filled with clothes scattered everywhere.
C1 adjective /ˈlæk.tɪk/

lactic

Meaning
Relating to milk or lactic acid.
Example
Intense exercise can lead to a buildup of lactic acid in the muscles.
C2 verb /ˈɔːɡər/

augur

Meaning
To be a sign of something to come; to predict or foretell.
Example
Dark clouds augur a coming storm.
B1 noun, verb /eɪd/

aid

Meaning
help or support, typically of a practical nature
Example
The volunteers provided aid to the flood victims.
C1 adjective /ˈdwɪndlɪŋ/

dwindling

Meaning
Gradually reducing in number, size, or strength.
Example
The villagers relied on dwindling water supplies.
A2 noun /θɔːt/

thought

Meaning
an idea or opinion produced by thinking or considering something
Example
She had a sudden thought about the future.
B2 noun /rɪˈmuː.vəl/

Removal

Meaning
the action of taking something away or eliminating it; dismissal from office
Example
The removal of the old furniture took all day.
C2 noun /ˈkætɪtʃuː/

Catechu

Meaning
an extract from a tropical Asian plant, used in tanning and dyeing
Example
Catechu extract is commonly used in traditional medicine.
C1 noun /dɪˌnʌnsiˈeɪʃən/

denunciation

Meaning
the public condemnation or accusation of someone or something
Example
The journalist's article was a strong denunciation of corruption.
C2 noun /dɪsˈkwaɪɪtjuːd/

disquietude

Meaning
A state of uneasiness, anxiety, or restlessness.
Example
His constant pacing showed his inner disquietude.
C2 noun /ˈbæs.tərd tiːk/

Bastard teak

Meaning
A flowering tree with bright orange-red flowers, also known as flame of the forest
Example
The bastard teak tree blooms with vibrant orange flowers in spring.
B2 noun /ˈkaʊ.ərd/

Coward

Meaning
a person who lacks the courage to do or endure dangerous or unpleasant things
Example
He called himself a coward for not standing up to the bully.
C2 noun /ˈprɑːflɪɡəsi/

profligacy

Meaning
reckless wastefulness or extravagance
Example
His profligacy with money led him to bankruptcy.
B2 noun /ˈædvərtaɪzər/

advertiser

Meaning
a person or company that advertises a product, service, or event
Example
The advertiser paid millions for a Super Bowl commercial spot.
C1 noun /dɪˌpriː.ʃiˈeɪ.ʃən/

depreciation

Meaning
A reduction in the value of an asset with the passage of time, due to wear and tear.
Example
The car's depreciation rate is high after five years.
B2 verb (phrasal) /ˈpæs ˌɔːf/

pass-off

Meaning
to present something or someone falsely as something else; to pretend or deceive
Example
He tried to pass off the fake watch as a luxury brand.
C2 noun /fɔːrˈbɛrəns/

forbearance

Meaning
Patient self-control; restraint and tolerance, especially in difficult situations.
Example
She showed remarkable forbearance during the heated argument.
A1 noun /ʃɜːrt/

Shirt

Meaning
a piece of clothing worn on the upper body with sleeves and buttons
Example
He wore a white shirt to the office.
B2 noun /ˈfeɪ.lɪŋ/

Failing

Meaning
a weakness, especially in a person's character; a fault
Example
His only failing is that he talks too much during meetings.
A2 adjective ˈæktɪv

active

Meaning
Engaging or ready to engage in physically energetic pursuits; characterized by energetic work, participation, etc.
Example
Active participation in education is vital for progress.
C1 noun ˌrɛk.əˈlɛk.ʃən

Recollection

Meaning
Remembering past events or information
Example
His recollection of childhood memories was vivid.
C1 adjective /fəˈroʊ.ʃəs/

Ferocious

Meaning
savagely fierce, cruel, or violent; extremely aggressive
Example
The ferocious storm destroyed many houses in the coastal area.
C2 noun /ˌkɒməˈsɛəriət/

commissariat

Meaning
A department responsible for supplying food and equipment, especially in the military.
Example
The army commissariat ensured that the soldiers had enough supplies.
B2 adverb /ˈdɛspərətli/

desperately

Meaning
in a way that shows despair or great need
Example
He called for help desperately after the accident.
A2 adjective /ˈkeər.ləs/

Careless

Meaning
not giving sufficient attention or thought to avoiding harm or errors; negligent; inattentive
Example
His careless driving caused a serious accident on the highway.
C1 noun /bɪz/

Biz

Meaning
business (informal); commercial enterprise or activity
Example
He's been in the restaurant biz for twenty years.
A1 noun /aɪs/

Ice

Meaning
water that has frozen and become solid
Example
The ice in my drink melted quickly in the hot weather.
C2 adjective /ˌɪnkænˈdɛsənt/

incandescent

Meaning
emitting light as a result of being heated; extremely bright or passionate
Example
The incandescent lamp lit up the entire hall.
C1 noun /ˈʃoʊ.və.nɪst/

chauvinist

Meaning
A person displaying excessive or prejudiced loyalty to a group, cause, or gender.
Example
He was labeled a chauvinist after his remarks about women in the workplace.
B2 adjective /ˌʌnˈkɔːrdɪneɪtɪd/

uncoordinated

Meaning
lacking coordination, not well-organized or clumsy in movement
Example
His movements were uncoordinated, making him prone to accidents.
C2 adjective /ˈtɜːrbɪd/

turbid

Meaning
Cloudy, opaque, or thick with suspended matter; confused or obscure in meaning.
Example
The river water became turbid after the heavy rains.
C1 noun /ˈʌndərˌwɜːrld/

underworld

Meaning
The criminal world of organized crime or the mythical world of the dead.
Example
The detective spent years studying the secrets of the underworld.
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.
C2 noun /ˈbaɪəˌɡræf/

biograph

Meaning
A written account of a person's life; an early motion-picture projector (historical use).
Example
The library holds an old biograph of the poet.
C1 noun /ˈrɛtrəsˌpɛkt/

retrospect

Meaning
the act of looking back on or reviewing past events
Example
In retrospect, the decision seemed unwise.
B2 noun /iˈkɒlədʒɪst/

ecologist

Meaning
A scientist who studies the relationships between living organisms and their environment.
Example
The ecologist studied the effects of pollution on the forest ecosystem.
B2 adjective /trɪm/

Trim

Meaning
neat and orderly in appearance; slim and fit
Example
She keeps her garden very trim and tidy.
A1 noun /ˈswɪmɪŋ/

swimming

Meaning
the activity or sport of moving through water using the limbs
Example
Swimming is a great way to stay fit and healthy.
C1 noun /ˈhɜːrbɪsaɪd/

herbicide

Meaning
A chemical substance used to kill unwanted plants, especially weeds.
Example
Farmers used herbicide to protect their crops from invasive weeds.
C2 adjective /ˌæk.si.əˈmæt.ɪk/

axiomatic

Meaning
Self-evident, obviously true without need for proof
Example
It is axiomatic that hard work leads to success.
C1 verb /dɪsˈtrʌst/

distrust

Meaning
to have no confidence or trust in someone or something
Example
Many people distrust politicians.