Obtuse
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C1 adjective /əbˈtjuːs/

Obtuse

Meaning
annoyingly insensitive or slow to understand; lacking in intelligence or perception
Example
He was being deliberately obtuse about the instructions.
C2 noun /ˈbʌt.ə.flaɪ piː/

Butterfly Pea

Meaning
a blue flowering plant with butterfly-shaped flowers, used to make herbal tea
Example
Butterfly pea flowers turn tea into a beautiful blue color.
C2 adjective /rəˈʃɛrʃ/

recherche

Meaning
Rare, exotic, or obscure, often in a sophisticated or refined way.
Example
The gallery displayed many recherche artworks from unknown artists.
C1 adjective /ɪkˈskjuːzəbl/

excusable

Meaning
Able to be forgiven or justified.
Example
Her mistake was excusable given the circumstances.
B2 adverb /ɪkˈsplɪsɪtli/

explicitly

Meaning
in a clear and detailed manner, leaving no room for confusion or doubt
Example
The instructions were explicitly written to avoid any confusion.
C1 noun /dɪˈkriː/

Decree

Meaning
an official order issued by a legal authority; a judicial decision or edict
Example
The king issued a decree that all citizens must pay additional taxes.
C1 noun, adverb /ˈeɪliəs/

alias

Meaning
A false or assumed identity; also used to mean 'otherwise called'.
Example
The criminal was known by the alias 'Shadow'.
B2 noun /ˈpref.ər.əns/

Preference

Meaning
a greater liking for one alternative over another or others
Example
She has a preference for classical music over pop music.
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 /ˈneb.jə.ləs/

Nebulous

Meaning
vague or unclear; lacking definite form; hazy
Example
His plans for the future remain nebulous and unclear.
C1 noun /jiːld ˌɒptɪmaɪˈzeɪʃən/

yield optimization

Meaning
The process of maximizing the productivity or efficiency of crop production through various agricultural techniques and practices.
Example
Yield optimization techniques can significantly improve crop production.
B2 adjective /ˈlɪniər/

linear

Meaning
Arranged in or extending along a straight line.
Example
The artist used linear perspective in his drawings.
B2 adjective /ˈsɜːrkjələr/

circular

Meaning
shaped like a circle; round in form
Example
The kids sat in a circular arrangement around the campfire.
C1 adverb /ˈhɑr.tɪ.li/

Heartily

Meaning
in a sincere and enthusiastic manner; wholeheartedly
Example
She heartily welcomed her guests to the party.
C1 verb /dɪˈfjuːz/

diffuse

Meaning
to spread over a wide area or among a large number of people
Example
The smell of fresh bread diffused through the entire house.
C1 adjective /ˈfɛrəl/

feral

Meaning
existing in a wild or untamed state; not domesticated
Example
The feral cat roamed the streets at night.
C1 noun ˌvɛn.əˈreɪ.ʃən

veneration

Meaning
Great respect; reverence; the action of regarding with great respect or reverence.
Example
Many cultures show veneration for their ancestors.
B2 noun /ɪnˈventər/

inventor

Meaning
a person who creates or designs something new, especially a device, method, or process
Example
The inventor patented her new medical device.
B1 noun /ˈælkəhɒl/

alcohol

Meaning
A colorless volatile liquid that is the intoxicating constituent of wine, beer, spirits, and other drinks.
Example
Too much alcohol can damage your liver.
C1 verb /rɪˈvoʊk/

revoke

Meaning
To officially cancel or withdraw a decision, privilege, or right.
Example
The government decided to revoke his passport.
C2 adjective /ˈvɜːrdənt/

verdant

Meaning
Green with grass or other rich vegetation; lush and fertile.
Example
The hills looked verdant after the monsoon rains.
C2 verb /dɪˈkæmp/

decamp

Meaning
To depart suddenly or secretly, often to avoid trouble or escape.
Example
The thief decamped before the police arrived.
C2 noun /ˈneɪdɪər/

nadir

Meaning
The lowest point of a situation or condition.
Example
The company reached its nadir during the financial crisis.
C1 adjective /ˈpɪθ.i/

pithy

Meaning
concise and meaningful; full of substance
Example
She gave a pithy comment that summarized the issue perfectly.
A2 noun /ˈpɛni/

penny

Meaning
a small coin of low value; a very small amount of money
Example
He found a penny on the sidewalk and smiled.
B1 noun /ˈθɪr.i/

Theory

Meaning
a supposition or system of ideas intended to explain something
Example
Einstein's theory of relativity revolutionized physics.
C2 noun /ˌmænjəˈmɪʃən/

manumission

Meaning
The act of a slave owner freeing their slaves.
Example
The manumission of the slaves marked a turning point in history.
C2 adjective /ˈfrəʊərd/

froward

Meaning
Difficult to deal with; contrary and disobedient.
Example
The teacher found the froward child hard to manage.
C1 adjective /ˈtʃɛk.ərd/

checkered

Meaning
Having a pattern of alternating squares of different colors; also describing a past full of ups and downs or varied experiences.
Example
He had a checkered career with many highs and lows.
B2 adjective /suːˈpriːm/

Supreme

Meaning
highest in rank, authority, or quality; greatest; most important
Example
The Supreme Court made the final decision.
C1 verb /ɪnˈtæŋɡəl/

entangle

Meaning
to become twisted together or caught in something; to involve in difficulties
Example
The fish got entangled in the net.
C1 noun rɪˈfaɪnmənt

refinement

Meaning
The process of removing impurities or unwanted elements from a substance.
Example
His manners showed a refinement that made him stand out in any crowd.
C1 noun /ˈfɔːrmən/

foreman

Meaning
a person in charge of a group of workers, especially in a factory or construction site
Example
The foreman supervised the workers on the construction site.
A1 noun/adjective /ˈɪŋɡlɪʃ/

english

Meaning
The language of England, widely spoken around the world; relating to England or its people.
Example
She is learning English to study abroad.
B1 noun /dɪˈfens/

Defence

Meaning
the action of defending from or resisting attack; protection or support
Example
The country strengthened its defence system against potential threats.
C1 noun /stents/

stents

Meaning
Small mesh tubes used to treat narrow or blocked arteries.
Example
Stents were successfully placed using robotic techniques.
C1 adjective /ˈmeʒ.ər.ə.bəl/

Measurable

Meaning
able to be measured; quantifiable
Example
The project's success was measurable by increased sales.
B2 noun /ˈfreʃmən/

freshman

Meaning
a first-year student at a high school, college, or university
Example
The freshman felt nervous on his first day at university.
B2 adjective /ˈspɒtɪd/

Spotted

Meaning
having spots or marks; noticed or seen
Example
The spotted leopard moved silently through the jungle.
C2 verb /ˈblændɪʃ/

blandish

Meaning
to flatter or coax someone with kind words or praise in order to influence them
Example
He blandished the officials with compliments to gain their support.
B2 noun ˈsəʊ.lər ˈen.ə.dʒi

solar energy

Meaning
Energy from the sun that is converted into thermal or electrical energy.
Example
Solar energy is vital for reducing carbon emissions.
C1 adjective /ˈsæljʊˌtɛri/

salutary

Meaning
Producing good effects; beneficial, especially after something unpleasant.
Example
The accident was a salutary reminder to drive carefully.
C2 noun /ˈeɪ.pi.ə.rɪst/

apiarist

Meaning
a person who keeps and tends bees for honey production
Example
The apiarist collected fresh honey from the hives.
C2 noun /ˌhaɪdrəˈstætɪks/

hydrostatics

Meaning
The branch of science concerned with the mechanical properties of fluids at rest.
Example
Hydrostatics is essential in understanding how dams and reservoirs function.
B2 noun /ˈprɛfəs/

preface

Meaning
an introduction to a book, speech, or other written work
Example
The author explained his motivation in the preface.
C2 noun /nɛl/

knell

Meaning
The sound of a bell, especially when rung solemnly for a death or funeral; a signal of the end or failure of something.
Example
The knell of the church bell echoed through the valley at dusk.
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 /məˈkænɪkəl/

mechanical

Meaning
relating to machines or the way they work
Example
She has a good understanding of mechanical systems.
B2 adjective /ˈaɪsi/

Icy

Meaning
extremely cold; covered with ice; unfriendly or hostile
Example
The icy wind made everyone shiver.
B2 adjective /ʌnˈtʃeɪndʒɪŋ/

unchanging

Meaning
remaining the same over time; not changing
Example
Her love for her family was unchanging throughout the years.
C1 verb /ˈfɔːlsɪfaɪ/

falsify

Meaning
to make something false or to misrepresent
Example
He tried to falsify the documents to avoid taxes.
B2 verb /slæm/

slam

Meaning
to close or hit something with great force
Example
He slammed the door angrily after the argument.
C1 noun /ˈɔɪntmənt/

ointment

Meaning
A smooth, oily substance applied to the skin for healing or soothing.
Example
The doctor prescribed an ointment for the burn on his arm.
C1 adjective /ˈseɪ.vər.i/

savory

Meaning
Having a pleasant salty or spicy taste; morally acceptable.
Example
The restaurant serves a variety of savory dishes.
A1 noun/verb /pɛn/

pen

Meaning
A writing instrument using ink; also, to write something.
Example
She used a pen to sign the document.
B2 noun /ˌkɒnsərˈveɪʃən ˈmuːvmənt/

Conservation Movement

Meaning
A political, environmental, and social movement that seeks to protect natural resources including plant and animal species as well as their habitat for the future.
Example
The conservation movement began in the 19th century to protect wildlife.
C2 noun /ˈænɪməlˌkjuːl/

animalcule

Meaning
A microscopic animal, especially a protozoan or other minute organism.
Example
The scientist observed an animalcule moving under the microscope.
B2 adjective /ˌɪnsɪɡˈnɪfɪkənt/

insignificant

Meaning
Too small or unimportant to be worth considering.
Example
The cost was so insignificant that nobody noticed it.
B2 noun /ˈrɒbər/

robber

Meaning
a person who steals property from others, often using force or threat
Example
The robber was caught after a quick police chase.
C2 adjective /ˈvɪrəl/

virile

Meaning
having traditionally masculine qualities, such as strength, energy, and sexual vigor
Example
The actor was admired for his virile appearance.
B2 verb /əˈbændən/

abandon

Meaning
to give up completely; to leave permanently
Example
They had to abandon their house due to flooding.
C2 noun /ˈfɔːrˌnɑːlɪdʒ/

foreknowledge

Meaning
Awareness of something before it happens or exists.
Example
The prophet claimed to have foreknowledge of the event.
C1 verb /prəˈfes/

profess

Meaning
to declare or claim openly; to state one's belief
Example
He professes his love for classical music.
C1 noun /ˈdrʌdʒəri/

drudgery

Meaning
Hard, menial, or dull work.
Example
She wanted to escape the drudgery of her daily routine.
B2 noun /ˈdʌmi/

dummy

Meaning
a model or replica of a human used for practice, display, or testing; also a term for a foolish person
Example
The tailor used a dummy to display the dress.
B1 noun /ɪnˈtɛnʃən/

intention

Meaning
A plan, aim, or purpose behind an action.
Example
Her intention was to finish the project before the deadline.
B2 adjective /ˈteɪst.ləs/

Tasteless

Meaning
lacking flavor; showing poor judgment in style
Example
The soup was completely tasteless and needed more seasoning.
C2 adjective /ˈrɛpərəbəl/

reparable

Meaning
able to be repaired or fixed
Example
The damage to the car was serious but still reparable.
C1 verb/noun /ˈkwɪbəl/

quibble

Meaning
To argue or raise objections about a trivial matter; a petty objection.
Example
They quibbled over who should pay the bill.
C1 adjective /ˈpɛnsɪv/

pensive

Meaning
Engaged in deep or serious thought.
Example
She looked pensive as she stared out of the window.
A1 adverb /jɛs/

yes

Meaning
used to express affirmation, agreement, or consent
Example
Yes, I will be there at 5 o'clock.
B2 noun/verb /sɪˈmɛnt/

cement

Meaning
a powdery substance that binds materials together; to make something strong or permanent
Example
The treaty helped cement the relationship between the two countries.
C1 adjective /ˌbaɪˈlæt.ər.əl/

bilateral

Meaning
An agreement or relationship between two parties that is mutual, two-sided, or reciprocal.
Example
The two countries signed a bilateral trade agreement.
C1 noun ˈiː.θɒs

ethos

Meaning
The characteristic spirit of a culture, era, or community as manifested in its beliefs and aspirations.
Example
The company's ethos is built on innovation and integrity.
A2 adjective /ˈkeər.fəl/

Careful

Meaning
taking care to avoid potential problems or dangers; cautious; attentive
Example
Be careful when crossing the busy street during rush hour.
B2 verb /rɪˈteɪn/

retain

Meaning
to keep possession of something
Example
The company decided to retain its experienced employees.
B2 adjective /ʌnˈfeɪv(ə)rəbəl/

unfavorable

Meaning
not beneficial or advantageous; showing disapproval or opposition
Example
The proposal received an unfavorable response from the committee.
C2 adjective /ˈɡær.ə.ləs/

Garrulous

Meaning
excessively talkative, especially on trivial matters; chatty and rambling in speech
Example
The garrulous old man at the coffee shop would talk for hours about his travels.
C1 noun ˈθɜː.məl stres

thermal stress

Meaning
Stress caused by excessive heat that affects plant growth and development.
Example
High thermal stress affects plant growth.
A2 noun /ˈklæsˌruːm/

classroom

Meaning
A room in which classes are held in a school or college.
Example
The teacher entered the classroom and greeted the students.
B2 noun /ˈhæb.ɪ.tæt/

habitat

Meaning
The natural environment where an organism lives and meets its needs.
Example
The polar bear's natural habitat is the Arctic region.
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.
B2 verb /ˌriːəˈʃʊr/

reassure

Meaning
to say or do something to remove someone's doubts or fears
Example
The teacher reassured the students before the exam.
B2 verb /ɪmˈbɑːrk/

embark

Meaning
to begin a journey, project, or activity
Example
She decided to embark on a new career in medicine.
C2 noun /ˈɡʌmp.ʃən/

gumption

Meaning
Courage, resourcefulness, or initiative.
Example
It takes real gumption to start your own business.
C2 verb /əˈdʒʌdʒ/

adjudge

Meaning
to consider or declare officially in a legal or formal manner
Example
He was adjudged guilty by the court.
A2 noun /ˈæk.ʃənz/

actions

Meaning
The fact or process of doing something, typically to achieve an aim.
Example
Immediate actions are needed for pollution control.
C1 noun /sɛˈseɪʃən/

cessation

Meaning
The fact or process of ending or being brought to an end.
Example
There was a temporary cessation of hostilities.
C1 adjective /ˈfliː.tɪŋ/

fleeting

Meaning
Lasting for a very short time; passing quickly.
Example
Happiness can be fleeting, so cherish every moment.
C1 noun /ˈsɪn.ɪˌsɪz.əm/

cynicism

Meaning
An inclination to believe that people are motivated purely by self-interest; skepticism.
Example
His cynicism made it hard for him to trust anyone.
C1 verb /pərˈteɪn/

pertain

Meaning
to relate or have reference to something
Example
The rules pertain to all students in the school.
C2 noun /ˈæmɪti/

amity

Meaning
A friendly relationship between people or countries.
Example
The treaty helped maintain amity between the neighboring nations.
C2 verb /ɛnˈfiːbəl/

enfeeble

Meaning
To make weak or feeble; to deprive of strength.
Example
The long illness enfeebled the old man.
C1 verb /ɡloʊt/

gloat

Meaning
To take pleasure in someone else's misfortune or to show smug satisfaction.
Example
He couldn't help but gloat over his rival's failure.
C1 noun /ˌdɪsəˈbiːdiəns/

disobedience

Meaning
failure or refusal to obey rules, laws, or authority
Example
The child's disobedience worried his parents.
C1 adjective /ˈraʊ.di/

Rowdy

Meaning
disorderly; unruly; noisy and disruptive
Example
The rowdy children were making too much noise.
C1 adjective /ˈtɛmpərəl/

temporal

Meaning
Relating to worldly affairs or to time rather than spiritual matters.
Example
The monk gave up his temporal possessions to live a simple life.
B1 phrase bɛst ˈɛf.ərt

best effort

Meaning
The maximum amount of effort or energy that someone can give.
Example
He gave his best effort to complete the task on time.
C1 adjective /rɪˈtɜː.nə.bəl/

Returnable

Meaning
able to be returned or given back
Example
The bottle is returnable for a deposit refund.
C2 verb /fɔːrˈdʒʌdʒ/

forejudge

Meaning
To judge beforehand without adequate information.
Example
It is unfair to forejudge someone without knowing the facts.
C2 verb /rɪˈsɪnd/

rescind

Meaning
to revoke, cancel, or repeal a law, order, or agreement
Example
The company decided to rescind the job offer.
B2 noun /ˈbætʃələr/

Bachelor

Meaning
an unmarried man; a person who holds a first degree from a university
Example
He remained a bachelor all his life and earned a bachelor's degree in engineering.
C1 noun /sleɪ/

sleigh

Meaning
A vehicle pulled by horses or reindeer over snow or ice.
Example
Children were excited to ride in the sleigh through the snowy village.
A1 verb /fɔːl/

fall

Meaning
to drop down from a higher place; to decrease; to happen or occur
Example
The leaves fall from the trees in autumn.
C2 noun /ɡriːn pəˈpaɪə/

Green Papaya

Meaning
unripe papaya fruit used as a vegetable in cooking, especially in Asian cuisine
Example
Green papaya salad is a popular dish in Thai cuisine.
B1 verb /əˈproʊtʃ/

approach

Meaning
to move closer to someone or something; to deal with a situation or problem
Example
The teacher approached the student to offer help.
B1 noun /tɑːsk/

task

Meaning
a piece of work or duty to be done
Example
He completed the task before the deadline.
C1 verb /ˈwaɪtˌwɑːʃ/

whitewash

Meaning
to cover up faults, errors, or unpleasant facts; to paint with white paint or lime
Example
The report was criticized for trying to whitewash the company's failures.
C2 adjective /ˈæməˌtɔːri/

amatory

Meaning
Relating to or expressing sexual love.
Example
The poet’s verses were filled with amatory themes.
C2 noun /tʃɜːrl/

churl

Meaning
A rude, boorish, or ill-mannered person.
Example
The waiter was such a churl that customers left unhappy.
C1 adjective /ˈrɪkɪti/

rickety

Meaning
Poorly made and likely to collapse; shaky.
Example
They crossed a rickety wooden bridge over the river.
B1 noun /meɪt/

mate

Meaning
a friend or companion; a partner in marriage or reproduction
Example
He went fishing with his old school mate.
A2 noun /ˈmɛs.ɪdʒ/

Message

Meaning
A written, spoken, or electronic communication sent from one person to another
Example
I received your message and will reply soon.
C2 adjective /ˈdæpər/

dapper

Meaning
Neat, stylish, and well-dressed in appearance.
Example
He looked very dapper in his new suit.
C1 noun /ˈmɪʃ.ən.ɛr.i/

Missionary

Meaning
A person sent on a religious mission to promote their faith in a foreign country
Example
The missionary spent years teaching and helping people in remote villages.
C1 noun /kəˈluːʒən/

collusion

Meaning
A secret agreement or cooperation, especially for an illegal or dishonest purpose.
Example
There was evidence of collusion between the officials and the contractors.
C1 verb, noun /læɡ/

lag

Meaning
To fall behind in movement, progress, or development; a delay or period of falling behind.
Example
The old computer tends to lag when running new software.
B1 noun ˈsɛʃənz

sessions

Meaning
A meeting of an official body, especially a court of law, to conduct its business; a period devoted to a particular activity.
Example
The sessions lasted for three hours.
C2 adjective /ˈsɛpərəbəl/

separable

Meaning
Capable of being separated or divided.
Example
The two issues are separable and should be discussed independently.
C2 noun /sɛnˈsɔːrɪəm/

sensorium

Meaning
The part of the brain or mind concerned with the reception and interpretation of sensory stimuli.
Example
The patient’s sensorium was clouded after the accident.
C1 noun /ˈprɛsɪdəns/ or /prɪˈsiːdəns/

precedence

Meaning
the condition of being considered more important than someone or something else; priority
Example
Safety takes precedence over speed in this factory.