lubricate
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C1 verb /ˈluːbrɪkeɪt/

lubricate

Meaning
to apply oil or grease to reduce friction between surfaces
Example
The mechanic lubricated the car engine parts.
C2 noun /njuːˈmɪzmətɪst/

numismatist

Meaning
A person who studies or collects coins, paper currency, and medals.
Example
The numismatist displayed his rare coin collection at the exhibition.
A2 noun /saɪz/

size

Meaning
the physical dimensions, proportions, or magnitude of something
Example
This shirt is too small in size for me.
B2 adverb /ˈneɪmli/

Namely

Meaning
that is to say; specifically; to be precise
Example
Three cities, namely Paris, London, and Rome, were visited.
A2 noun /ˈlem.ən/

Lemon

Meaning
a yellow citrus fruit with acidic juice
Example
She squeezed a lemon into her tea.
C2 noun /ˈfɔːltˌfaɪndər/

faultfinder

Meaning
a person who habitually finds fault with others
Example
He is such a faultfinder that nothing anyone does is ever good enough.
A2 noun /mæp/

map

Meaning
a drawing that shows the features of an area of land or sea
Example
He studied the map before starting his journey.
C2 noun /ˈprɑːflɪɡəsi/

profligacy

Meaning
reckless wastefulness or extravagance
Example
His profligacy with money led him to bankruptcy.
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.
A2 noun /ˈɪndʒəri/

injury

Meaning
Harm or damage to a person’s body caused by an accident or attack.
Example
He suffered a serious injury during the football match.
C1 noun /ˈlɔː.meɪ.kər/

Lawmaker

Meaning
a person who writes and passes laws, especially a member of a legislative body
Example
The lawmakers voted on the new education bill.
C2 noun /sɪˈkwiːlə/

sequela

Meaning
A condition that is the consequence of a previous disease or injury.
Example
Lung scarring can be a sequela of severe pneumonia.
C1 noun /ˈɡreɪ.tər/

Grater

Meaning
a kitchen utensil with a rough surface for grating food into small pieces
Example
Use the grater to grate cheese for the pizza.
A1 number /ˈfɔːrti/

forty

Meaning
the number 40; ten times four
Example
She celebrated her forty years of life with a big party.
A1 verb, adjective /kloʊz/ (verb), /kloʊs/ (adjective)

close

Meaning
To shut something (verb); near in space or relationship (adjective).
Example
Please close the door when you leave.
C2 adjective /dɪˈfjuːzəbl/

diffusible

Meaning
able to spread or be spread through a medium
Example
Oxygen is diffusible through cell membranes.
B1 verb /əˈʃʊr/

assure

Meaning
to make someone feel certain or confident about something
Example
He assured her that everything would be fine.
A1 noun /mɪlk/

Milk

Meaning
a white liquid produced by cows, goats, or other mammals, used as food
Example
Children need to drink milk for strong bones.
C2 noun /ˈɑːrbər/

arbor

Meaning
a shady garden shelter formed by trees, climbing plants, or latticework
Example
They rested under the arbor covered with roses.
B1 adjective /ˈɪnər/

inner

Meaning
Located inside or closer to the center; relating to one’s thoughts or feelings.
Example
She shared her inner thoughts with her best friend.
C2 verb /ˈʌndərˌraɪt/

underwrite

Meaning
To guarantee financial support, especially by agreeing to cover losses or risks; in insurance, to assess and accept risks.
Example
The bank agreed to underwrite the company's new bond issue.
C2 adjective /koʊˈiːvəl/

coeval

Meaning
Having the same age, date of origin, or duration; contemporary.
Example
The philosopher was coeval with the rise of modern science.
B2 noun /hʌt/

hut

Meaning
a small simple shelter or house
Example
They lived in a small wooden hut near the river.
B2 noun /ˈɑp.tə.mɪst/

Optimist

Meaning
a person who tends to be hopeful and confident about the future; someone who sees the good side of things
Example
As an optimist, she always believed things would improve.
C2 adjective /sɛnˈtɛnʃəs/

sententious

Meaning
Given to moralizing in a pompous or affected manner.
Example
His sententious remarks annoyed the audience.
C1 verb /bruːd/

brood

Meaning
to think deeply about something that makes one unhappy; also, a group of young birds hatched at the same time
Example
He sat alone, brooding over his failures.
A2 verb /kɪl/

kill

Meaning
to cause the death of; to end life
Example
The hunter killed the deer.
B2 noun /ˈstɑːrtər/

starter

Meaning
a person or thing that starts something; the first course of a meal
Example
The starter of the meal was a fresh salad.
C1 noun /ˈdʒʌɡərˌnɔːt/

juggernaut

Meaning
A huge, powerful, and unstoppable force or institution.
Example
The new tech company has become a juggernaut in the industry.
B2 verb /ɪnˈtɜːrprət/

interpret

Meaning
to explain the meaning of something; to translate orally
Example
She had to interpret the speech for the foreign guests.
B2 adjective /ˈsɛl.əˌbreɪ.tɪd/

celebrated

Meaning
Widely known and praised; famous for an achievement.
Example
He is a celebrated author in the field of literature.
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 /kəˈnaɪ.vəns/

connivance

Meaning
the act of secretly allowing or being involved in wrongdoing
Example
The theft happened with the connivance of the security guard.
C2 noun, adjective, verb /ˈrɛprəˌbeɪt/

reprobate

Meaning
A person of immoral character; to express disapproval of; morally corrupt.
Example
The old reprobate spent his days gambling and drinking.
C1 noun /ˌdiːpɔːrˈteɪʃən/

deportation

Meaning
The act of expelling a foreigner from a country.
Example
The deportation of hundreds of workers sparked international criticism.
C1 adjective /ˈɡraʊnd.ləs/

Groundless

Meaning
without foundation or justification; baseless
Example
His accusations against her were completely groundless.
C1 verb /ˈsɪn.θə.saɪz/

synthesize

Meaning
To combine a number of things into a coherent whole.
Example
Scientists synthesize new compounds for medical research.
B1 adjective /rɪˈlɪdʒəs/

Religious

Meaning
relating to or believing in a religion; devout; spiritual;
Example
He comes from a very religious family.
C1 adjective /ˈluːdɪkrəs/

ludicrous

Meaning
so foolish, unreasonable, or out of place as to be amusing
Example
It is ludicrous to think the Earth is flat.
C2 adjective /ɪˈpɪstələri/

epistolary

Meaning
Related to the writing of letters; expressed in or through letters.
Example
The novel is written in an epistolary style, consisting of letters between characters.
C1 adjective /tænˈdʒɛnʃəl/

tangential

Meaning
relating to or along a tangent; slightly or indirectly related to something
Example
His remarks were tangential to the main topic of discussion.
A1 adverb /ˈjuː.ʒu.ə.li/

Usually

Meaning
in most cases; generally; as a rule
Example
I usually wake up at 7 AM every morning.
C1 noun /ˈprɒdɪdʒi/

prodigy

Meaning
a person, especially a young one, with exceptional talents or abilities
Example
Mozart was a child prodigy in music.
C2 verb /ɛnˈkɪndl/

enkindle

Meaning
to set on fire or inspire strong emotion
Example
The speech enkindled hope in the audience.
C1 noun /ˈkɔːkəs/

caucus

Meaning
A meeting of members of a political party to select candidates or decide policy.
Example
The party held a caucus to nominate their candidate for president.
C2 noun /ɪnˈfriːkwəns/

infrequence

Meaning
The state of occurring rarely or at long intervals.
Example
The infrequence of their meetings made it hard to maintain close ties.
B1 noun /kəʊˌɒp.ərˈeɪ.ʃən/

cooperation

Meaning
The process of working together to the same end.
Example
Cooperation ensures effective problem-solving.
B2 verb /ɪnˈspekt/

inspect

Meaning
to examine something carefully to check for problems or faults
Example
The engineer will inspect the building for structural damage.
C1 verb /wɪlt/

wilt

Meaning
To become limp, weak, or drooping, often due to lack of water or energy.
Example
The flowers wilted in the heat of the sun.
C2 noun /ˈɪkθiəˌsɔːrz/

ichthyosaurs

Meaning
Extinct marine reptiles that resembled fish and dolphins, dominant during the Mesozoic era.
Example
Ichthyosaurs were swift predators of the ancient seas.
C1 noun /ˈstɛə.rɪ.əʊˌtaɪ.pɪŋ/

stereotyping

Meaning
A widely held but fixed and oversimplified image or idea of a particular type of person or thing.
Example
Stereotyping people based on their race is harmful.
B2 noun /ˈten.dər.nəs/

Tenderness

Meaning
gentleness and kindness; the quality of being easily hurt or damaged
Example
The mother showed great tenderness while caring for her sick child.
B2 noun /ˈmɛkəˌnɪzəm/

mechanism

Meaning
A system of parts working together in a machine; a process or technique for achieving something.
Example
The mechanism of the clock stopped working after years of use.
A1 pronoun /ðiːz/

these

Meaning
used to refer to things or people that are near or present
Example
These are my friends.
C1 adjective /ˈsnɒbɪʃ/

snobbish

Meaning
having or showing the attitude of people who think they are better than others
Example
She seemed snobbish because she avoided talking to the waiters.
C1 noun /ˈmæɡneɪt/

Magnate

Meaning
A wealthy and powerful businessperson or industrialist
Example
The oil magnate owned dozens of refineries across the country.
B2 noun /ˈtɜːrbən/

Turban

Meaning
a head covering made by wrapping a long piece of cloth around the head
Example
The Sikh man wore a colorful turban.
B2 noun /spæm/

spam

Meaning
unsolicited or unwanted electronic communication, typically in the form of email
Example
My inbox is full of spam emails that I need to delete.
C2 verb /əˈbʌt/

abut

Meaning
to be next to or share a border with
Example
The park abuts the river on the north side.
C1 noun ˈɪn.fər.əns

inference

Meaning
A conclusion reached on the basis of evidence and reasoning; logical deduction.
Example
Scientists make inferences based on experimental data.
C2 verb /rɪˈkjʊə/

recure

Meaning
to cure again; to remedy a second time
Example
The doctor had to recure the wound after it reopened.
B2 noun /ˌsoʊsiˈɑːlədʒi/

sociology

Meaning
the study of society, human relationships, and social institutions
Example
She is studying sociology at university.
A1 adjective /ˈjeloʊ/

Yellow

Meaning
having the color of the sun or gold; cowardly
Example
The yellow flowers bloomed in spring.
A2 adjective /ˈmɛsi/

messy

Meaning
untidy or dirty; disorganized or chaotic
Example
His room was so messy that he couldn’t find his keys.
C1 noun /stæɡˈneɪ.ʃən/

stagnation

Meaning
A state of inactivity or lack of growth, especially in an economy.
Example
High unemployment led to economic stagnation.
C2 noun /ˈvɪrjʊləns/

virulence

Meaning
The severity or harmfulness of a disease or poison.
Example
Scientists studied the virulence of the new virus strain.
C2 adjective /ˌmædʒɪˈstɪəriəl/

magisterial

Meaning
Having the characteristics of a master or authority; commanding and dignified.
Example
The professor spoke in a magisterial tone during the lecture.
A1 verb /kʌm/

come

Meaning
to move toward a place; to arrive at a place
Example
Please come to my birthday party.
B1 noun wɛlθ

wealth

Meaning
The state of being rich; material prosperity; an abundance of valuable possessions or money.
Example
Wealth creation involves building assets that earn while you sleep.
B2 noun /ɒpˈtɪʃən/

optician

Meaning
A person who makes or sells glasses and contact lenses.
Example
The optician adjusted my new glasses to fit better.
C2 noun /ˈɔɪl.mən/

Oilman

Meaning
a person who works in the oil industry; someone who sells oil or petroleum products
Example
The oilman discovered a new oil field in the desert.
B2 noun /ˈkɜːr.tə.si/

Courtesy

Meaning
the showing of politeness in one's attitude and behavior toward others; a polite gesture or remark
Example
He showed great courtesy by holding the door open for elderly people.
C1 adjective /əˈɡrɛəriən/

agrarian

Meaning
Related to farming, agriculture, or rural land.
Example
The country’s economy is still largely agrarian.
B2 verb /ˈkɒmpənseɪtɪd/

compensated

Meaning
to have been given something, typically money, as a recompense for loss, suffering, or work done
Example
The workers were compensated for their overtime hours.
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.
B2 adjective ˈaɪsəˌleɪtɪd

isolated

Meaning
Alone or separated from others; having little or no contact with other people.
Example
Technological advancements often leave people isolated.
B2 adjective /ˈstʌnɪŋ/

stunning

Meaning
extremely impressive or attractive
Example
The view from the top of the mountain was absolutely stunning.
C1 noun /pʌnˈdʒɑː.bi/

Punjabi

Meaning
a traditional long shirt worn in South Asia, typically loose-fitting
Example
He wore a white punjabi for the festival celebration.
B2 noun helθ ˈhæzərdz

health hazards

Meaning
Risks or dangers to physical health and well-being that can cause illness or injury.
Example
Plastic usage leads to significant health hazards.
B2 adjective /kəˈrɛspɒndɪŋ/

corresponding

Meaning
matching or related to something
Example
The corresponding page in the book explains the process in detail.
B1 noun /ˈkʊkər/

cooker

Meaning
a device or appliance used for cooking food; a person or thing that cooks
Example
The rice cooker makes cooking meals much easier.
B2 noun /ˈstrʌk.tʃərz/

structures

Meaning
Buildings or other objects constructed from several parts.
Example
The region has ancient structures.
A2 verb /ˈvɪzɪtɪŋ/

visiting

Meaning
Going to see and spend time with someone or at a place.
Example
The group is visiting islands during the expedition.
C2 noun /dɪˈsweɪʒən/

dissuasion

Meaning
The act of persuading someone not to take a course of action.
Example
Her dissuasion prevented him from making a bad investment.
B1 adjective /ˌʌndərˈstændəbl/

understandable

Meaning
Able to be understood; reasonable or justifiable.
Example
Her reaction was understandable given the situation.
C1 noun /ʌnˈfeɪθfʊlnəs/

unfaithfulness

Meaning
the quality of being disloyal or not faithful; breach of trust or fidelity
Example
His unfaithfulness led to the end of their marriage.
C1 verb /ˌʌndərˈsɛl/

undersell

Meaning
to sell something at a lower price than competitors or to downplay the value of something
Example
The shop undersold its rivals by offering huge discounts.
B2 noun /ˈtɒl.ər.əns/

Tolerance

Meaning
the ability to accept different opinions or behavior; willingness to allow something to exist
Example
Religious tolerance is important in a diverse society.
C2 noun /ˌlaɪ.pəˈdʒen.ɪ.sɪs/

lipogenesis

Meaning
The metabolic process of fat synthesis where excess carbohydrates are converted into fatty acids and stored as triglycerides.
Example
Excess carbohydrate intake promotes lipogenesis and fat storage.
C2 noun /ɪˈfluːviəm/

effluvium

Meaning
an unpleasant or harmful odor, secretion, or discharge
Example
The effluvium from the factory spread across the neighborhood.
B2 noun, adjective /hjuːˌmænɪˈtɛəriən/

humanitarian

Meaning
A person who seeks to promote human welfare, or something relating to human welfare and compassion.
Example
The organization provides humanitarian aid to disaster victims.
A2 noun /kraʊd/

crowd

Meaning
a large number of people gathered together
Example
A huge crowd gathered to watch the concert.
A2 noun /træʃ/

Trash

Meaning
waste material; refuse; something of poor quality or little value
Example
Please take out the trash before you leave.
C1 adjective /dɪˈvɔɪd/

devoid

Meaning
Completely lacking or without something.
Example
His speech was devoid of any real emotion.
A2 verb /riːˈsaɪ.kəl/

recycle

Meaning
to process used materials so they can be used again instead of being thrown away
Example
We should recycle paper and plastic to reduce waste.
C1 noun /ˈæbsɛs/

abscess

Meaning
A swollen area within body tissue containing pus, usually caused by infection.
Example
The dentist treated the abscess in his tooth.
C1 adjective /ˌaʊt əv ðə ˈweɪ/

out-of-the-way

Meaning
remote or unusual; not in a convenient or usual location
Example
They stayed in an out-of-the-way village.
C1 noun /lɪŋˈɡwɪstɪks/

linguistics

Meaning
The scientific study of language and its structure.
Example
She decided to major in linguistics at university.
A1 adjective /ˈɪntrəstɪŋ/ or /ˈɪntəˌrɛstɪŋ/

interesting

Meaning
Arousing curiosity or attention; holding one’s interest.
Example
The documentary about space was very interesting.
A1 modal verb/noun /maɪt/

might

Meaning
used to express possibility; power or strength
Example
She might come to the party if she finishes work early.
C2 noun /ˌpraɪvəˈtɪə/

privateer

Meaning
A privately owned armed ship authorized by a government to attack enemy ships during war.
Example
The privateer captured several enemy vessels during the conflict.
B1 adverb /ˈtɛmpərɛrɪli/

temporarily

Meaning
for a limited time; not permanently
Example
The road is closed temporarily for repairs.
C1 noun /ˌmælnuːˈtrɪʃən/

Malnutrition

Meaning
Lack of proper nutrition; poor nourishment
Example
Malnutrition among children is a serious public health concern.
C1 noun ˌɪntədɪˈpɛndənsi

interdependency

Meaning
The dependence of two or more people or things on each other.
Example
The interdependency of the countries led to greater cooperation.
B2 noun ɔːˈɡæn.ɪk fuːdz

organic foods

Meaning
Food produced without the use of chemicals such as artificial pesticides, fertilizers, or other artificial agents.
Example
Organic foods are healthier than processed foods.
A2 noun /ˈbʌdi/

buddy

Meaning
a close friend or companion, used informally
Example
He went to the movies with his best buddy.
C2 adjective /bɪˈnɪɡnənt/

benignant

Meaning
Kindly and benevolent in nature.
Example
The teacher’s benignant attitude made the students feel comfortable.
A2 verb /ˈmenʃən/

mention

Meaning
to refer to something briefly; to speak about or name
Example
She forgot to mention the meeting time.
C2 noun /nɪt/

nit

Meaning
The egg or young form of a louse or other parasitic insect.
Example
The teacher noticed nits in the child’s hair.
C1 verb /ˈflʌtər/

flutter

Meaning
to move or flap quickly and lightly; to beat or wave with small rapid motions
Example
The butterfly began to flutter its wings in the sunlight.
C1 adjective /ˈkɔːrdiəl/

Cordial

Meaning
warmly friendly; sincere; heartfelt
Example
She gave us a cordial welcome at the front door.
A2 noun /per/

pair

Meaning
two things of the same kind that are used together
Example
She wore a matching pair of shoes.
B2 verb /dɪˈspoʊz/

dispose

Meaning
To get rid of something, or to arrange or incline towards something.
Example
He disposed of the old furniture responsibly.
C2 verb /ˈwɪn.oʊ/

winnow

Meaning
to remove the less desirable parts from a group; originally, to separate grain from chaff by blowing air
Example
The committee will winnow the list of applicants to ten finalists.
A2 noun /ˈæk.sɪ.dənt/

accident

Meaning
An unfortunate incident that happens unexpectedly and unintentionally.
Example
Safety measures aim to prevent accidents.
C2 verb /haɪ/

hie

Meaning
to go quickly; hasten
Example
He hied to the station to catch the train.
B2 noun /vɒlˈkæn.ɪk ɪˈrʌp.ʃən/

volcanic eruption

Meaning
The discharge of lava, ash, and gases from a volcano.
Example
The volcanic eruption covered the town in ash.
C2 noun /ˈvaɪsrɔɪ/

viceroy

Meaning
a ruler exercising authority on behalf of a sovereign in a colony or province
Example
The viceroy governed the colony in the king's name.
B1 verb /ˈɛmfəˌsaɪz/

emphasize

Meaning
to give special importance or attention to something
Example
The teacher emphasized the importance of homework.
C2 noun /ˈseɪnjər/

seignior

Meaning
A feudal lord; a man of authority in medieval Europe.
Example
The seignior demanded taxes from the peasants.
C2 noun /ˈkeɪsiːn/

Casein

Meaning
the main protein found in milk and cheese, used in food production and supplements
Example
Casein protein powder is popular among athletes for muscle recovery.