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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 /ˌɑːrbɪˈtreɪʃən/

arbitration

Meaning
the process of resolving a dispute through an impartial third party whose decision is binding; formal judgment outside a court
Example
The contract requires arbitration to settle any disputes.
C1 adjective /ˈrɔːkəs/

raucous

Meaning
loud, harsh, and unpleasant sound or behavior
Example
The crowd became raucous after the team scored.
C1 noun ˌɒp.tɪ.maɪˈzeɪ.ʃən

optimization

Meaning
Improving processes to increase performance and efficiency.
Example
SEO optimization helps websites rank higher on search engines.
B2 noun /ˈhaʊs boʊt/

House boat

Meaning
a boat that has been designed or modified to be used primarily as a home
Example
They spent their vacation on a beautiful house boat in the lake.
C2 noun /ˈsɛm.ɪ.nɛr.i/

seminary

Meaning
A school or college for training priests, ministers, or rabbis.
Example
He decided to enroll in a seminary to study theology.
B2 noun /ˈnɪk.neɪm/

Nickname

Meaning
a familiar or humorous name given to a person instead of their real name
Example
His nickname is 'Tiger' because he's so brave.
C2 noun /ˈkɒntrəriz/

contraries

Meaning
things that are completely different or opposite to each other
Example
Freedom and slavery are contraries in every sense.
A2 preposition /tɪl/

till

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

Uniformity

Meaning
the quality of being uniform; consistency or sameness
Example
The uniformity of the design created a pleasing visual effect.
C2 noun /sʌnd raɪs/

Sunned rice

Meaning
Rice that has been dried in the sun; parched rice
Example
The farmers spread the sunned rice on mats to dry completely.
C2 noun /ˈbrɛviˌɛri/

breviary

Meaning
A book containing the service for each day, used in Christian liturgy.
Example
The monk read from the breviary during morning prayers.
C1 adjective /ˈskænti/

Scanty

Meaning
small in size or amount; insufficient; barely adequate
Example
The refugee camp had scanty food supplies.
C1 noun /ˈpɜːrkəleɪtər/

percolator

Meaning
A device used for brewing coffee by continually cycling boiling water through coffee grounds.
Example
She made a fresh pot of coffee using the percolator.
B1 noun /seɪnt/

Saint

Meaning
person recognized as holy or virtuous; very kind or patient person
Example
Mother Teresa was declared a saint by the Catholic Church.
B2 noun ɔːˈtɒnəmi

autonomy

Meaning
The right or condition of self-government; freedom from external control or influence.
Example
Autonomy was a primary demand.
A2 noun /ˈtʃælɪndʒɪz/

challenges

Meaning
Difficult tasks or situations that test someone's abilities or resources.
Example
Overcoming challenges is the key to personal growth.
C2 adjective /ˈdɛndrɔɪd/

dendroid

Meaning
tree-shaped or branching like a tree
Example
The coral has a dendroid structure.
C2 noun /ˌɪrɪˈdɛsəns/

iridescence

Meaning
a play of lustrous, changing colors like those of a rainbow
Example
The butterfly's wings shimmered with iridescence.
C1 noun /ˈkɜːrfjuː/

curfew

Meaning
a rule requiring people to stay indoors after a certain time, usually at night
Example
The city imposed a curfew during the unrest.
B2 adjective /ˌæbsənt ˈmaɪndɪd/

absent-minded

Meaning
often forgetting things or not paying attention
Example
He is so absent-minded that he often forgets his keys.
B2 adjective /ˈmɪd.əl.eɪdʒd/

Middle-aged

Meaning
being of an age between young and old; typically between 40-60 years old
Example
The middle-aged man started a new career.
A1 pronoun, noun, adjective /wʌn/

one

Meaning
the number equivalent to the sum of zero and one; a single person or thing
Example
Only one student answered the question.
C2 noun /ˈɡæŋ.weɪ/

gangway

Meaning
A narrow passage or walkway; also an exclamation used to clear the way.
Example
The sailors lowered the gangway for passengers to board.
C2 noun /ˈfɔːθ.raɪt.nəs/

forthrightness

Meaning
The quality of being honest and straightforward; directness.
Example
Her forthrightness made her a respected journalist.
C1 noun, adjective /dɪˈfiːtɪst/

defeatist

Meaning
A person who expects or is excessively ready to accept failure; showing a tendency to expect defeat.
Example
His defeatist attitude discouraged the rest of the team.
C2 noun /vɪˈsɪsɪtjuːd/

vicissitude

Meaning
A natural change or succession of one thing to another; the ups and downs of life.
Example
The vicissitude of life often teaches resilience.
B1 noun sɪˈkjʊə.rɪ.ti

security

Meaning
The state of being free from danger, threat, or loss.
Example
Food security is essential for human survival.
C1 verb /əˈdʒuːdɪˌkeɪt/

adjudicate

Meaning
to make a formal judgment or decision about a problem or dispute
Example
The committee was formed to adjudicate disputes between the parties.
A2 noun /ˈflaɪ.ɪŋ ˈkriː.tʃər/

Flying creature

Meaning
any animal that has the ability to fly through the air
Example
Birds, bats, and insects are all examples of flying creatures.
C1 noun/verb /ɡrʌdʒ/

grudge

Meaning
A persistent feeling of ill will or resentment from a past insult or injury.
Example
She still holds a grudge against him for what happened years ago.
C1 noun /ˈɪrɪtənt/

irritant

Meaning
something that causes irritation or discomfort
Example
Dust is a common irritant for people with allergies.
C2 noun /ˈbroʊmaɪd/

bromide

Meaning
A trite or unoriginal idea or remark; also a chemical compound of bromine.
Example
His speech was full of old bromides about hard work.
C1 adjective /ɪnˈtɒl.ər.ə.bəl/

Intolerable

Meaning
unable to be endured; extremely unpleasant or painful
Example
The noise from the construction site was intolerable.
B2 verb /əˈkjuːmjəleɪt/

accumulate

Meaning
to gather or collect things gradually over time
Example
She managed to accumulate a small fortune through wise investments.
B2 noun ˌrɛzɪɡˈneɪʃən

resignation

Meaning
The acceptance of something undesirable but inevitable; giving up.
Example
Her resignation from the position was unexpected.
B1 noun /læk/

Lack

Meaning
the state of being without or not having enough of something; absence or shortage
Example
The lack of rain this summer has caused serious problems for farmers.
B2 noun /ˈfɪks.tʃər/

fixture

Meaning
a permanent or fixed object, often in a house or building
Example
The bathroom fixture was installed yesterday.
B2 noun ɡrɪd

grid

Meaning
A network of interconnected lines or a system for distributing electricity over a wide area.
Example
The national power grid must be upgraded.
C2 verb /ˈwɔːbəl/

warble

Meaning
To sing or whistle with a quavering voice or with trills.
Example
The bird warbled a sweet tune in the morning.
C2 adjective /ˌsɒfəˈmɒrɪk/

sophomoric

Meaning
showing immaturity and overconfidence, like a sophomore
Example
His sophomoric behavior embarrassed his friends.
B1 noun /ˈbraɪd.ɡrʊm/

Bridegroom

Meaning
a man on his wedding day or just before and after the event
Example
The nervous bridegroom waited at the altar for his bride to arrive.
B2 noun /sərˈkʌmfərəns/

circumference

Meaning
the distance around the edge of a circle
Example
The teacher asked us to calculate the circumference of the circle.
C1 noun /ˈɑːr.sən.əl/

arsenal

Meaning
A collection or storage place for weapons and military equipment.
Example
The army kept its weapons in a secure arsenal.
C2 verb /læmˈpuːn/

lampoon

Meaning
to publicly criticize or ridicule someone or something with humor, irony, or sarcasm
Example
The cartoonist lampooned the politician for his contradictory statements.
C1 verb /ɪˈleɪt/

elate

Meaning
To make someone very happy or proud.
Example
The success of the project elated the whole team.
C2 verb /ˈfrɪtər/

fritter

Meaning
To waste time, money, or energy on trivial matters.
Example
He frittered away his savings on unnecessary gadgets.
B2 adjective /ˈspɛʃəˌlaɪzd/

specialized

Meaning
designed or developed for a particular purpose or function
Example
He has a specialized knowledge of ancient civilizations.
C1 noun /ˈhɪr.seɪ/

Hearsay

Meaning
information received from other people that one cannot adequately substantiate; rumor
Example
The accusations were based on hearsay rather than concrete evidence or eyewitness testimony.
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.
C1 adjective /pəˈdæntɪk/

pedantic

Meaning
Excessively concerned with minor details or rules; overly academic or bookish.
Example
Her pedantic explanations made the lecture dull.
B1 adjective, preposition, noun /mɪd/

mid

Meaning
being in the middle of something; the central part or point
Example
She joined the project in mid June.
B2 adjective /ˌɪntərˈmiːdiət/

intermediate

Meaning
Coming between two things in time, place, or order; in the middle level or stage.
Example
She is taking an intermediate-level French course.
B2 noun, verb /laʊndʒ/

lounge

Meaning
A public room for relaxing; or to sit, lie, or stand in a relaxed way.
Example
They lounged on the sofa after dinner.
B2 verb ɪnˈfɔːrsɪŋ

enforcing

Meaning
To compel observance of or compliance with a law, rule, or obligation.
Example
Enforcing strict laws is necessary to prevent violations.
C1 adjective /məˈləʊ.di.əs/

Melodious

Meaning
having a pleasant musical sound; tuneful
Example
Her melodious voice captivated the entire audience.
C2 verb /ˈæntɪkweɪt/

antiquate

Meaning
To make something old-fashioned or obsolete.
Example
The rise of digital cameras antiquated traditional film photography.
C1 verb /ˈməʊbɪlaɪz/

mobilize

Meaning
to organize or prepare people or resources for action
Example
The leader worked hard to mobilize the community for the protest.
C2 adjective /ˌæk.rɪˈmoʊ.ni.əs/

acrimonious

Meaning
Bitter and angry, often involving harsh words.
Example
The debate turned acrimonious after the controversial remark.
C2 adjective /ˈpɑːmi/

palmy

Meaning
prosperous, flourishing, or relating to palm trees
Example
He often reminisced about the palmy days of his youth.
C1 adjective /ˈspaɪni/

spiny

Meaning
covered with or full of spines; having sharp points
Example
The spiny cactus stood tall in the desert.
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.
B2 verb /ˈaɪ.sə.leɪt/

isolate

Meaning
To separate something or someone from others.
Example
Doctors tried to isolate the patient to prevent the spread of infection.
C1 adjective /stɔːntʃ/

staunch

Meaning
Loyal, committed, and firm in support.
Example
She is a staunch supporter of environmental protection.
A2 adjective /ˈtiːnˌeɪdʒ/

teenage

Meaning
relating to or characteristic of people aged between 13 and 19 years old
Example
She spent her teenage years in a small town.
C2 noun /ˈluː.məˌnɛr.i/

luminary

Meaning
A person who inspires or influences others, especially in a particular field.
Example
He is considered a luminary in the world of science.
C1 noun /ˈælɪbaɪ/

alibi

Meaning
A claim or piece of evidence that one was elsewhere when an act, typically a crime, was committed.
Example
She had a strong alibi that proved she was at the cinema during the theft.
C2 adjective /ˈpʌdʒi/

pudgy

Meaning
slightly fat or chubby in a way that is often cute
Example
The baby had pudgy cheeks that everyone adored.
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 noun /fəˈtɒɡrəfi/

photography

Meaning
the art or practice of taking and processing photographs
Example
She studied photography in college.
C2 verb /ˈmæŋɡəl/

mangle

Meaning
to severely damage or mutilate something, often by tearing or crushing
Example
The car was mangled in the accident.
C1 noun /ˈtrɪkəri/

trickery

Meaning
The use of dishonest methods to deceive or cheat someone.
Example
The politician was accused of winning the election through trickery.
C2 adjective /sʌbˈlɪŋɡwəl/

sublingual

Meaning
situated or applied under the tongue
Example
The doctor prescribed a sublingual tablet for faster absorption.
C1 noun /ˌmɪdˈsʌm.ər/

midsummer

Meaning
The middle of summer, often around the summer solstice in June.
Example
We had a festival to celebrate midsummer.
A2 noun /suːt/

suit

Meaning
a set of clothes made of the same fabric, usually consisting of trousers and a jacket
Example
He wore a black suit to the wedding.
C2 noun /ˌɔːrnɪˈθɑːlədʒi/

ornithology

Meaning
the scientific study of birds
Example
She pursued ornithology to understand the migration patterns of birds.
C1 noun /ˈheɪˌdeɪ/

heyday

Meaning
The period of greatest success, popularity, or power.
Example
In its heyday, the company dominated the market.
B2 adjective /ʌnˈθɪŋkəbl/

Unthinkable

Meaning
impossible to conceive or imagine; beyond belief or consideration
Example
It was unthinkable that such a tragedy could happen in our peaceful town.
B2 noun /ˈsuː.ɪ.saɪd/

Suicide

Meaning
the act of intentionally killing oneself
Example
Mental health professionals work to prevent suicide.
C2 adjective /ɪnˈvɛtərət/

inveterate

Meaning
having a long-established habit, activity, or interest that is unlikely to change
Example
He is an inveterate reader who spends hours in the library every day.
C1 verb /strʌt/

strut

Meaning
to walk with a stiff, proud, and confident gait, often to show off
Example
He strutted across the stage after winning the award.
B2 noun /liːk/

Leak

Meaning
a hole in a container or covering through which contents escape or enter accidentally
Example
There is a leak in the water pipe.
C1 verb /ˌriːˈtʌtʃ/

retouch

Meaning
To improve or repair a picture, photograph, or image by making small changes.
Example
The photographer retouched the image to remove blemishes.
C1 noun /dɪˈfɔː.mə.ti/

Deformity

Meaning
a distorted or unnatural shape or form; physical malformation
Example
The accident caused a permanent deformity in his left hand.
B2 verb /rɪˈvaɪv/

revive

Meaning
To bring back to life, consciousness, or activity.
Example
The paramedics managed to revive the unconscious man.
B2 noun /ˈpjʊə.rɪ.ti/

Purity

Meaning
the state of being pure; cleanness or freedom from contamination
Example
The purity of the mountain water was remarkable.
C2 noun /ˈæktʃuˌɛri/

actuary

Meaning
A professional who analyzes financial risk using mathematics, statistics, and financial theory, especially in insurance and pensions.
Example
The actuary calculated the risk before finalizing the insurance policy.
C2 noun /ˈæltruɪst/

altruist

Meaning
a person who has an unselfish concern for the welfare of others
Example
He is an altruist who always puts others' needs before his own.
B1 noun dɛt

debt

Meaning
A sum of money that is owed or due.
Example
High levels of debt can lead to a financial crisis.
B2 verb rɪˈzaɪn

resign

Meaning
Voluntarily leave a job or other position.
Example
Ministers were forced to resign.
B1 verb /tɛnd/

tend

Meaning
To regularly behave in a particular way or to take care of something.
Example
She tends to wake up early in the morning.
C1 noun /ˈnɒnʃələns/

nonchalance

Meaning
A relaxed and calm state, showing lack of concern or interest.
Example
She answered the tough questions with surprising nonchalance.
B2 noun ˈstɪmjələs

stimulus

Meaning
A thing or event that evokes a specific functional reaction in an organ or tissue.
Example
Plants respond to external stimulus.
C2 noun /ˌθiːəˈloʊdʒən/

theologian

Meaning
A person who studies or is an expert in theology.
Example
Theologians often debate complex questions of faith and morality.
C2 noun /prɒɡˌnɒstɪˈkeɪʃən/

prognostication

Meaning
The act of foretelling or predicting future events.
Example
The astrologer's prognostication fascinated the audience.
C2 adjective /ˈɡluː.tɪ.nəs/

glutinous

Meaning
Having a sticky or glue-like texture.
Example
The glutinous rice stuck together in the pot.
C1 noun ˌɪndɪˈspensəbl̩ ˈkɒmpɪtənsi

indispensable competency

Meaning
Essential skill or ability that cannot be done without; a crucial capability that is absolutely necessary.
Example
Digital literacy is an indispensable competency in the 21st century.
C2 noun /ˈhɛfər/

heifer

Meaning
a young cow that has not borne a calf
Example
The farmer raised a heifer for dairy production.
B1 noun riˈæləti

reality

Meaning
The world or the state of things as they actually exist, as opposed to an idealistic or notional idea.
Example
The reality of the situation was evident.
C1 verb /taʊt/

tout

Meaning
to promote, praise, or advertise aggressively
Example
The company touted its new product as a game-changer.
A2 verb ˈfoʊkəs

focus

Meaning
To concentrate attention or effort on something; to direct one's attention or efforts towards a particular activity, subject, or problem.
Example
Focus on what truly matters to simplify your life.
A2 noun /stɔːrm/

Storm

Meaning
a violent weather condition with strong winds, rain, thunder, and lightning
Example
The storm caused power outages across the city.
C2 noun /ˈhaɪdrə/

hydra

Meaning
a many-headed serpent in Greek mythology; a problem that seems to grow worse when attempts are made to solve it
Example
Corruption is like a hydra, hard to defeat completely.
B2 noun ˈfjuː.tʃɚ ˌdʒen.əˈreɪ.ʃənz

future generations

Meaning
People who have not yet been born, considered in terms of the environment or society they will inherit.
Example
Sustainable development ensures a better life for future generations.
C2 verb /ˈbeɪɪŋ/

baying

Meaning
making a loud, prolonged barking or howling sound, especially of dogs
Example
The baying of the hounds echoed through the forest.
C2 noun /ɑːlˈfækʃən/

olfaction

Meaning
The sense of smell; the process of detecting and perceiving odors.
Example
Dogs have a highly developed sense of olfaction.
C2 adjective /ˈfraʊzi/

frowzy

Meaning
Unkempt, messy, or having a musty, unpleasant smell.
Example
He entered the room with a frowzy appearance after sleeping on the couch.
A2 adverb /ˈɔːlmoʊst/

almost

Meaning
very nearly, but not exactly or completely
Example
He almost missed the train.
B1 adjective /ɪnˈtaɪər/

Entire

Meaning
complete; whole; not divided or in parts
Example
She read the entire book in one sitting.
B2 noun /ˌsɛpəˈreɪʃən/

Separation

Meaning
the action or state of moving or being moved apart; the division of something into constituent or distinct elements
Example
The separation of the two countries was peaceful.
C1 noun /ˈpeɪθɒs/

pathos

Meaning
a quality in speech, writing, or events that evokes pity or deep emotion
Example
The documentary balanced pathos with hope, making the audience both weep and think.
B2 noun /ɪmˈpɒlɪtnəs/

impoliteness

Meaning
lack of good manners or courtesy; rude behavior
Example
His impoliteness towards the guests shocked everyone.
B2 verb /ˈtaɪtən/

Tighten

Meaning
to make something more secure or less loose
Example
He tightened the screws to secure the shelf.
C1 verb /ˈvɛnəˌreɪt/

venerate

Meaning
to regard with great respect; revere
Example
People venerate saints for their holiness.
C1 noun /ˈprɒmɪnəns/

prominence

Meaning
The state of being important, famous, or easily noticed.
Example
Her work gained prominence after the award.
C2 noun /niːˈɒlədʒɪzəm/

neologism

Meaning
A newly coined word or expression.
Example
The internet has given rise to many neologisms like 'selfie' and 'hashtag'.
C2 noun /ˈɔːfəl/

offal

Meaning
the internal organs and entrails of an animal used as food; waste parts
Example
The butcher prepared sausages using pork offal.
C1 noun /təˈræntjʊlə/

tarantula

Meaning
A large hairy spider found in warm regions.
Example
The tarantula crawled across the desert floor.
C1 noun /ˈpiː.kɒk ˈflaʊ.ər/

Peacock flower

Meaning
a tropical tree with bright orange and red flowers that resemble a peacock's tail
Example
The peacock flower tree blooms with stunning orange flowers in summer.
C1 adjective /frəˈnɛtɪk/

frenetic

Meaning
Fast and energetic in a wild or uncontrolled way.
Example
The stock market experienced frenetic trading after the announcement.
C2 adjective /ˈmiː.di.əl/

medial

Meaning
Situated in or pertaining to the middle; located toward the midline of the body or structure.
Example
The medial side of the knee is more prone to injury.