cycloid
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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.
C2 adjective /ˈɪnfəntaɪl/

infantile

Meaning
characteristic of an infant; childish
Example
His infantile behavior embarrassed everyone at the meeting.
C2 verb ɪɡˈzɔːrt

exhort

Meaning
To strongly encourage or urge someone to do something.
Example
The teacher exhorted students to work hard for exams.
C2 adjective /ˈwɪznd/

wizened

Meaning
Shriveled, wrinkled, or withered, often due to age.
Example
The wizened tree stood in the field for centuries.
C2 noun /kɪθ/

kith

Meaning
Friends, acquaintances, and relations.
Example
He invited all his kith and kin to the wedding.
C1 adjective /ˈrɔːkəs/

raucous

Meaning
loud, harsh, and unpleasant sound or behavior
Example
The crowd became raucous after the team scored.
C2 noun /ˈveɪɡəri/

vagary

Meaning
An unexpected and inexplicable change in a situation or someone's behavior.
Example
The vagaries of the weather made planning difficult.
C1 adjective /ˈtɛmpərd/

tempered

Meaning
having a specified temper or disposition; strengthened or moderated.
Example
She gave a tempered response to the criticism.
C2 verb /həˈmɑː.dʒə.naɪz/

homogenize

Meaning
To make uniform or similar by blending or mixing different elements.
Example
The company tried to homogenize its products across global markets.
A2 noun /ˈstʌmək/

Stomach

Meaning
the organ in the body where food is digested; the belly or abdomen
Example
My stomach hurts after eating too much.
C1 adjective/noun /ˈkɜːrsɪv/

cursive

Meaning
Written with characters joined together in a flowing manner.
Example
The teacher asked students to write the essay in cursive handwriting.
C1 noun /blɒˈkeɪd/

Blockade

Meaning
an act or means of sealing off a place to prevent goods or people from entering or leaving
Example
The naval blockade prevented supplies from reaching the port.
C2 adjective /ˈbʌmpʃəs/

bumptious

Meaning
Arrogantly self-assertive or conceited.
Example
The bumptious student interrupted the teacher several times.
C2 adjective /ˈbʊərɪʃ/

boorish

Meaning
Rude, insensitive, and lacking manners or refinement.
Example
His boorish behavior ruined the dinner party.
B2 noun /ˈseɡ.mənt/

Segment

Meaning
each of the parts into which something is divided; a section or portion
Example
The orange was divided into eight segments.
A2 noun /ˈpɑːswɜːd/

password

Meaning
a secret word or phrase used to gain access to something
Example
Make sure your password is strong and unique.
B2 verb /ˌdɪfəˈrɛnʃieɪt/

differentiate

Meaning
To recognize or make a distinction between things.
Example
It is important to differentiate between fact and opinion.
C2 noun /ˈlɪŋ.ɡwə/

lingua

Meaning
A language, especially one used for communication among people.
Example
English has become a global lingua for business and science.
C1 noun /ˈɡlɒs.ər.i/

Glossary

Meaning
an alphabetical list of terms in a particular domain of knowledge with explanations; a brief dictionary
Example
The textbook includes a helpful glossary at the end to define technical terms.
C1 adjective /ɔːlˈmaɪ.ti/

Almighty

Meaning
having unlimited power; omnipotent
Example
The almighty storm destroyed everything in its path.
B2 noun /kwəʊˈteɪʃən/

quotation

Meaning
a group of words taken from a text or speech and repeated exactly; an estimated price given for goods or services
Example
The article opened with a famous quotation from Shakespeare.
C1 verb /ˈheɪsən/

hasten

Meaning
To move or act quickly; to cause something to happen sooner.
Example
He hastened to finish his work before the deadline.
C2 adjective /ˈbiːstiəl/

bestial

Meaning
Relating to beasts; showing savagery, brutality, or lacking human sensibility.
Example
The prisoners were treated in a bestial manner.
B1 verb rɪˈdjuːst

reduced

Meaning
Make smaller or less in amount, degree, or size.
Example
Singapore has reduced plastic usage significantly.
C1 noun /ˈhɛrəsi/

heresy

Meaning
belief or opinion that goes against established religious doctrine or accepted beliefs.
Example
In medieval times, heresy was often punished severely.
C1 noun /ˌænəlˈdʒiːzɪk/

analgesic

Meaning
A drug or substance that relieves pain.
Example
She took an analgesic to ease her headache.
C1 adjective /kənˈtraɪvd/

contrived

Meaning
artificial or forced; not natural or spontaneous
Example
The ending of the movie felt contrived and unrealistic.
C1 noun/verb /ˈsuː.tʃər/

suture

Meaning
A stitch or row of stitches holding together the edges of a wound or surgical incision.
Example
The doctor used a suture to close the wound.
C2 adjective /ˈstraɪ.eɪ.tɪd/

striated

Meaning
marked with thin lines, grooves, or stripes
Example
The muscle fibers appeared striated under the microscope.
C1 adjective /ˈɪnsjələr/

insular

Meaning
Narrow-minded, isolated, or relating to an island.
Example
The community was criticized for its insular attitudes toward outsiders.
C2 adjective /ˌɪnɪkˈstrɪkəbl/

inextricable

Meaning
Impossible to separate or escape from.
Example
The two friends shared an inextricable bond.
B1 adjective /ˈtʃɑːr.mɪŋ/

charming

Meaning
Very pleasing or delightful in a way that attracts people.
Example
The village is full of charming little houses.
B2 adjective /ˈlɪb.ər.əl/

Liberal

Meaning
open-minded; tolerant; generous; progressive in thinking
Example
She has a liberal attitude towards different cultures and beliefs.
C2 noun ˈtɪl.ɪdʒ

tillage

Meaning
The preparation of land for growing crops.
Example
Excessive tillage can lead to soil erosion.
C1 adjective /əbˈstrʌk.tɪv/

Obstructive

Meaning
deliberately creating difficulties or preventing progress; hindering or blocking something
Example
The obstructive policies hindered economic growth.
C2 noun /ˌlɛdʒərdəˈmeɪn/

legerdemain

Meaning
skillful use of one's hands when performing tricks; deception or trickery
Example
The magician's legerdemain left the audience amazed.
C1 noun /ˈmʌltɪplaɪər/

multiplier

Meaning
a number or factor by which another number is multiplied; something that increases the effect or value of something else
Example
In economics, government spending can act as a multiplier for economic growth.
C1 adjective /ˈsæk.rəˌsæŋkt/

sacrosanct

Meaning
Regarded as too important or valuable to be interfered with; sacred.
Example
Freedom of speech is considered sacrosanct in democratic societies.
B2 noun /ˌaʊtˈsaɪdə(r)/

outsider

Meaning
a person who is not accepted as a member of a particular group or community
Example
As a new student, she often felt like an outsider at school.
B2 noun /səkˈses.ər/

Successor

Meaning
a person who succeeds another in office; someone who takes over a position or role
Example
The CEO announced his retirement and named his successor for the company.
C2 noun /ˈpætwɑː/

patois

Meaning
a regional or social dialect, especially one considered nonstandard or informal
Example
The guide slipped into local patois when chatting with the fishermen.
C2 noun /ˈkɒn.tjʊ.mə.si/

contumacy

Meaning
stubborn refusal to obey authority
Example
His contumacy led to his suspension from the council.
C2 noun /ˈpɛdɪmənt/

pediment

Meaning
a triangular gable found above the horizontal structure of a building, often in classical architecture
Example
The ancient temple had a pediment decorated with sculptures.
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.
B1 noun /ˈnɜːrsəri/

nursery

Meaning
a room or place where young children are cared for
Example
She works in a nursery, taking care of infants.
C1 noun /ˈmaʊθ.fʊl/

mouthful

Meaning
the amount of food or drink that fills the mouth, or a long and difficult word or phrase
Example
He took a big mouthful of water after the run.
C2 noun /hɑrˈmoʊniəm/

Harmonium

Meaning
a keyboard musical instrument similar to an organ, using air to produce sound
Example
She played devotional songs on the harmonium at the temple.
C1 noun /ˈpɒpjʊləs/

populace

Meaning
the general public; the ordinary people living in a country or area
Example
The new law was welcomed by the local populace.
B2 noun /ˌɪm.ɪˈteɪ.ʃən/

Imitation

Meaning
the action of using someone or something as a model; a copy of something original
Example
His imitation of the famous actor was so good that everyone burst into laughter.
B2 noun /əbˈdʒek.ʃən/

Objection

Meaning
an expression of disagreement or disapproval; a reason for disagreeing
Example
The lawyer raised an objection during the trial.
C1 verb /ˌkaʊntərˈbæləns/

counterbalance

Meaning
to offset or balance the effect of something
Example
Exercise can counterbalance the negative effects of stress.
C1 adjective /rɪˈvɜː.sə.bəl/

Reversible

Meaning
able to be turned the other way around; able to be undone or changed back
Example
This jacket is reversible and can be worn on both sides.
A2 verb /ˈɡæðər/

gather

Meaning
to come together or collect in one place; to assemble
Example
People gather in the park for the festival.
C1 verb /ˈviːtoʊ/

veto

Meaning
to reject or forbid a decision, proposal, or law
Example
The president decided to veto the new bill.
C1 noun /ˈpeɪtriɑːrk/

patriarch

Meaning
a male head of a family or tribe; an older respected man who leads a group
Example
As the family patriarch, he mediated disputes and kept long traditions alive.
B2 verb /səˈrɛndər/

surrender

Meaning
to give up or yield to an opponent or authority
Example
The army finally surrendered after weeks of fighting.
C1 noun /tækˈtɪʃ.ən/

tactician

Meaning
a person who is skilled at planning and achieving goals, especially in military or business
Example
Napoleon was a brilliant tactician.
A2 noun /ˈfɪʃ.ər.mən/

Fisherman

Meaning
a person who catches fish as a job or hobby
Example
The fisherman caught three large fish in the river today.
C1 verb /spɔːn/

spawn

Meaning
to produce or generate, often in large numbers
Example
The video game has spawned many sequels.
B1 noun /əˈtæʧmənt/

attachment

Meaning
a strong feeling of affection or connection
Example
The attachment he felt to his hometown was undeniable.
C1 adjective /ˌɔː.riˈen.təl/

Oriental

Meaning
relating to the countries of East Asia; eastern
Example
The museum has a beautiful collection of oriental art.
B2 verb /ʃɛd/

shed

Meaning
to let something fall off naturally, such as leaves, hair, or tears
Example
Trees shed their leaves in autumn.
B2 noun /ˈbɛriəl/

burial

Meaning
the act of placing a dead body into the ground.
Example
The burial ceremony took place in the afternoon.
C1 adjective /ˌʌnrɪˈkwaɪtɪd/

unrequited

Meaning
Not returned or reciprocated, especially in the context of love or affection.
Example
He suffered from unrequited love for years.
C1 adjective /praɪˈmiːvəl/

primeval

Meaning
Relating to the earliest ages in history; ancient and primitive.
Example
The explorers ventured into the primeval forest untouched by humans.
C1 adjective /ʌnˈmɒdɪfaɪd/

unmodified

Meaning
not changed from its original form or state
Example
The data was used in its unmodified form for analysis.
C2 noun /ˈbrɒŋkəs/

bronchus

Meaning
either of the two main branches of the trachea that lead directly into the lungs
Example
The left bronchus carries air into the left lung.
B2 noun /ˈmɜːrsi/

Mercy

Meaning
Compassion or forgiveness shown toward someone whom it is in one's power to punish
Example
The judge showed mercy and gave him a lighter sentence.
B1 noun /ˈhɪr.ɪŋ/

Hearing

Meaning
the faculty of perceiving sounds; a session in which testimony and arguments are heard
Example
The elderly man's hearing had deteriorated, so he needed to wear a hearing aid.
B2 noun /ˈθiːsɪs/

thesis

Meaning
A long piece of writing on a particular subject, usually for a degree at a university.
Example
She spent two years writing her doctoral thesis.
C2 noun /ˈlændˌhoʊl.dər/

landholder

Meaning
a person who owns land, especially in large amounts
Example
The landholder leased part of his property to local farmers.
B2 adjective /ˈfeɪθ.fəl/

Faithful

Meaning
loyal and committed; reliable; true to one's beliefs
Example
She remained faithful to her principles throughout her career.
C2 adjective /ˈpʌkɪʃ/

puckish

Meaning
playfully mischievous
Example
The child gave a puckish grin before hiding the toy.
B1 adverb /ˈbraɪtli/

brightly

Meaning
in a way that gives off a lot of light; in a vivid, cheerful, or intelligent manner
Example
The stars shone brightly in the clear night sky.
B1 noun /ˈmɛdəl/

medal

Meaning
a piece of metal given as an award for achievement
Example
She won a gold medal in the 100-meter race.
B2 noun /ˈter.ər/

Terror

Meaning
extreme fear; the use of violence and intimidation for political aims
Example
The loud explosion filled everyone with terror.
C1 adjective /əˈkʌlt/

occult

Meaning
Relating to mysterious, supernatural, or magical powers and practices.
Example
She had always been fascinated by the occult and its hidden knowledge.
A2 verb,noun /pæk/

pack

Meaning
to put things into a container for storage or transport; a collection of items kept together
Example
She packed her clothes into a suitcase for the trip.
C1 adjective /ˌkætəˈklɪzmɪk/

cataclysmic

Meaning
Relating to or denoting a violent natural event or upheaval.
Example
The war had cataclysmic effects on the nation's economy.
C2 noun /ˈdʒɪŋɡoʊˌɪzəm/

jingoism

Meaning
extreme patriotism expressed in aggressive foreign policy
Example
The politician's speech was filled with jingoism.
B2 noun /ˈpoʊ.di.əm/

Podium

Meaning
a small platform on which a person may stand to be seen by an audience
Example
The winner stood on the podium to receive the gold medal.
C2 noun /məˈrɔː.dər/

marauder

Meaning
a person who roams around in search of things to steal or people to attack
Example
Villagers feared the marauders who raided their homes.
B2 noun ˈikoʊ ˈfrɛndli tɛkˈnɑləʤiz

eco-friendly technologies

Meaning
Technologies that are designed to minimize environmental impact and promote sustainability.
Example
Eco-friendly technologies can mitigate pollution.
C2 adjective /ˈtjuːtɪlɑːr/

tutelar

Meaning
Serving as a guardian or protector.
Example
The tutelar spirit of the forest was believed to protect travelers.
C1 noun /ˌɪntɪˈmeɪʃən/

intimation

Meaning
A subtle or indirect hint or suggestion.
Example
She gave no intimation of her plans.
C1 adjective /ˈfɛrəl/

feral

Meaning
existing in a wild or untamed state; not domesticated
Example
The feral cat roamed the streets at night.
B2 verb /waɪn/

whine

Meaning
to complain in an annoying way; to make a high-pitched sound
Example
The child whined about having to go to bed early.
C1 verb /həˈluːsɪneɪt/

hallucinate

Meaning
to see, hear, or sense things that are not actually present, often due to illness or drugs
Example
After taking the medicine, he began to hallucinate strange shapes.
C2 verb /prəˈpaʊnd/

propound

Meaning
To put forward an idea, theory, or point for consideration.
Example
The professor propounded a new theory on climate change.
B2 noun /ˈɛdʒuˌkeɪtər/

educator

Meaning
a person who provides education; a teacher or instructor
Example
She is a dedicated educator who inspires her students every day.
C1 noun /ʃruː/

shrew

Meaning
a small mouse-like animal; also a woman with a bad temper
Example
The play describes a strong-willed woman as a shrew.
B2 noun /dʒuː/

jew

Meaning
a person whose religion is Judaism or who is of Jewish descent
Example
He is a Jew by heritage and follows Jewish customs.
A2 verb /ˈɔːfər/

offer

Meaning
to present something for acceptance or rejection; to propose
Example
She offered to help with the project.
C1 verb /ˈtɪŋkər/

tinker

Meaning
to make small adjustments or repairs to something, often experimentally or imperfectly
Example
He likes to tinker with old radios in his garage.
A2 noun /ˈhæb.ɪt/

habit

Meaning
A settled or regular tendency or practice, especially one that is hard to give up.
Example
Eye rubbing is a harmful habit.
C1 noun /ˈfoʊliɪdʒ/

foliage

Meaning
The leaves of a plant, collectively.
Example
The autumn foliage looked stunning in the park.
C1 verb /ɪˈvɪkt/

evict

Meaning
To expel someone from a property, usually by legal process.
Example
The landlord decided to evict the tenants for not paying rent.
B2 noun /ˈfriː.kwən.si/

Frequency

Meaning
the rate at which something occurs or is repeated over a particular period of time
Example
The frequency of earthquakes in this region has increased dramatically over the past decade.
C1 noun /ɡrəˈfiː.ti/

Graffiti

Meaning
writing or drawings scribbled, scratched, or sprayed illicitly on a wall or other surface in a public place
Example
The subway walls were covered with colorful graffiti created by local street artists.
C2 noun /əˈdjuː/

adieu

Meaning
A farewell or goodbye, often used in a formal or poetic sense.
Example
She bid her friends adieu before leaving for France.
C1 noun /ˈkɪləˌwɒt/

kilowatt

Meaning
a unit of power equal to 1,000 watts
Example
The generator produces ten kilowatts of electricity.
B1 noun /tʃiːk/

Cheek

Meaning
either side of the face below the eye; impudent or disrespectful behavior
Example
The baby's rosy cheeks showed she was healthy and happy.
B1 noun /dɪˈskʌvəri/

discovery

Meaning
The act of finding or learning something for the first time.
Example
The discovery of penicillin changed medical history.
B1 adjective ˈpræktɪkəl

practical

Meaning
Concerned with actual use rather than theory; realistic and sensible.
Example
A practical approach is needed for solving complex problems.
C2 adjective, noun /ˈɡreɪtɪŋ/

grating

Meaning
Harsh and unpleasant to the senses, especially sound; a framework of bars covering an opening.
Example
The teacher's grating voice made it hard to concentrate.
A2 preposition /əˈpɒn/

upon

Meaning
on or immediately after
Example
Upon hearing the news, he rushed to the hospital.
A2 noun /ˈdiː.teɪl/

detail

Meaning
An individual feature, fact, or item of information.
Example
She explained the plan in great detail.
C1 adjective /ˌɒstɛnˈteɪʃəs/

ostentatious

Meaning
Characterized by a showy or pretentious display intended to impress others.
Example
He wore an ostentatious gold chain to the party.
C1 verb /sɪˈsiːd/

secede

Meaning
To formally withdraw from a political or organizational union.
Example
Several states threatened to secede from the union.
C1 verb /skɔːrtʃ/

scorch

Meaning
to burn the surface of something slightly
Example
The fire scorched the walls of the building.
C2 noun/adjective /prɪˈsɪpɪtənt/

precipitant

Meaning
As a noun: a substance that causes a substance to be deposited from a solution; as an adjective: acting hastily or impulsively.
Example
The chemist added a precipitant to the solution to observe the reaction.
C1 noun /ˌiː.kwɪˈlɪb.ri.əm/

equilibrium

Meaning
A state of physical balance or stability in physical, mental, or economic conditions.
Example
The market reached an equilibrium between supply and demand.
C1 verb /nɪˈɡeɪt/

negate

Meaning
To cancel out or make ineffective; to deny the truth of something.
Example
The new evidence will negate the claims made earlier.
B2 adjective /ˈfeɪtl/

fatal

Meaning
causing death; leading to disaster
Example
The accident proved fatal for the driver.
B2 noun /ˈoʊtˌmiːl/

oatmeal

Meaning
A type of porridge made from ground oats, often eaten for breakfast.
Example
She eats a bowl of oatmeal every morning for breakfast.
C2 adverb /əˈmʌk/

amok

Meaning
Behaving uncontrollably and disruptively.
Example
The angry mob ran amok after the verdict was announced.
C1 verb /ˈteɪpər/

taper

Meaning
To gradually decrease in width, thickness, or intensity.
Example
The road tapers off as it reaches the mountains.
C2 verb /koʊˈhɪr/

cohere

Meaning
To stick together; to be united logically or physically.
Example
The ideas in his essay cohere well.
C1 verb /dɪˈspɛl/

dispel

Meaning
to make a doubt, feeling, or belief disappear
Example
The teacher's explanation dispelled the students' confusion.
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.
B1 noun /ˈkwaɪər/

choir

Meaning
An organized group of singers, typically performing in church services or concerts.
Example
The choir sang beautifully during the ceremony.